Page 1 DES-3326 24-Port Fast Ethernet Plus 2-Port Gigabit Module Layer 3 Switch User’ s Guide First Edition (June, 2001) 651S3326S015 Printed In Taiwan RECYCLABLE...
Page 2: Wichtige Sicherheitshinweise
Wichtige Sicherheitshinweise Bitte lesen Sie sich diese Hinweise sorgfältig durch. Heben Sie diese Anleitung für den spätern Gebrauch auf. Vor jedem Reinigen ist das Gerät vom Stromnetz zu trennen. Vervenden Sie keine Flüssig- oder Aerosolreiniger. Am besten dient ein angefeuchtetes Tuch zur Reinigung. Um eine Beschädigung des Gerätes zu vermeiden sollten Sie nur Zubehörteile verwenden, die vom Hersteller zugelassen sind.
Page 3 17. Wenden Sie sich mit allen Fragen die Service und Repartur betreffen an Ihren Servicepartner. Somit stellen Sie die Betriebssicherheit des Gerätes sicher. 18. Zum Netzanschluß dieses Gerätes ist eine geprüfte Leitung zu verwenden, Für einen Nennstrom bis 6A und einem Gerätegewicht großer 3kg ist eine Leitung nicht leichter als H05VV-F, 3G, 0.75mm2 einzusetzen.
Page 4: Limitation Of Liability
This Warranty applies on the condition that the product Registration Card is filled out and returned to a D-Link office within ninety (90) days of purchase. A list of D-Link offices is provided at the back of this manual, together with a copy of the Registration Card.
Page 5 Registration Card. If a Registration Card for the product in question has not been returned to a D-Link office, then a proof of purchase (such as a copy of the dated purchase invoice) must be provided when requesting warranty service. The term "purchase"...
Page 6 D-Link makes no warranty that operation of its software products will be uninterrupted or absolutely error-free, and no warranty that all defects in the software product, within or without the scope of D-Link's applicable product documentation, will be corrected.
Page 7: Copyright Statement
The product's Registration Card, provided at the back of this manual, must be sent to a D-Link office. To obtain an RMA number for warranty service as to a hardware product, or to obtain warranty service as to a software product, contact the D-Link office nearest you. An address/telephone/fax/e-mail/Web site list of D-Link offices is provided in the back of this manual.
Page 8: Fcc Warning
FCC Warning This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits designed provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Page 9: Table Of Contents
Table of Contents About This Guide................1 Overview of this User’ s Guide............1 Introduction .................3 Layer 3 Switching ..............3 The Functions of a Layer 3 Switch..........5 Features..................6 Ports ..................6 Performance Features ...............7 Layer 2 Features..............7 Layer 3 Switch Features ............9 Traffic Classification and Prioritization ........ 10 Management .................
Page 10 User-Changeable STA Parameters ........48 Illustration of STP ..............49 Port Aggregation..............53 Setting Up IP Interfaces VLANs ..........55 Notes About VLANs on the DES-3326 ........56 IEEE 802.1Q VLANs ............. 57 802.1Q VLAN Packet Forwarding ......... 58 802.1Q VLAN Tags ..............60...
Page 11 Tagging and Untagging ............64 Ingress Filtering ..............64 Layer 3-Based VLANs............65 VLANs in Layer 2 Only Mode ..........66 DHCP Servers ................. 69 Broadcast Storms ..............71 Segmenting Broadcast Domains ........... 71 Eliminating Broadcast Storms ..........72 IP Addressing and Subnetting ..........72 Definitions................
Page 12 Multicast Groups ..............103 Multicast Addressing ............103 Internet Group Management Protocol (IGMP) ....106 IGMP Versions 1 and 2 ............106 Multicast Routing Algorithms..........110 Flooding ................110 Multicast Spanning Trees ........... 111 Reverse Path Broadcasting (RPB)........111 Reverse Path Multicasting (RPM)........112 Multicast Routing Protocols...........
Page 13 Logging Onto The Switch Console.......... 139 Updating or Deleting User Accounts ........140 Viewing Current User Accounts.......... 141 Deleting a User Account ............. 142 Setting Up The Switch............144 Basic Setup ................. 144 Switch Information ............. 144 Remote Management Setup ..........145 Setting Up Trap Receivers..........
Page 14 Forwarding................210 Layer 2 Forwarding............. 210 IP Routing Forwarding............211 MAC Address Forwarding........... 212 Spanning Tree................ 216 Switch Spanning Tree Settings ........... 216 Port Group Spanning Tree Settings........218 Link Aggregation ..............221 Switch Utilities ..............223 Layer 2 Switch Utilities ............223 Updating Firmware.............
Page 15 Web-Based Network Management ........... 250 Introduction................250 Before You Start..............251 General Deployment Strategy ..........251 VLAN Layout ..............252 Assigning IP Network Addresses and Subnet Masks to VLANs................. 253 Defining Static Routes ............254 Getting Started..............254 Management ................254 Configuring the Switch ............
Page 16 Unidirectional Link ............. 389 Packet Corruption............... 391 Resource Errors..............391 Identifying a Data Loop ............392 Avoiding Trouble ..............392 Brief Review of Bitwise Logical Operations ......399 Index ..................401...
Page 17: About This Guide
24-port NWay Ethernet Switch User’s Guide BOUT UIDE This User’ s guide tells you how to install your DES-3326, how to connect it to your Ethernet network, and how to set its configuration using either the built-in console interface or Web- based management.
Page 18 Chapter 7, Web-Based Network Management. Tells how to manage the Switch through an Internet browser. Appendix A, Technical Specifications. Lists the technical specifications of the DES-3326. Appendix B, RJ-45 Pin Specifications. Shows the details and pin assignments for the RJ-45 receptacle/connector.
Page 19: Introduction
ASIC – in hardware instead of software. Where a traditional router would have one, or at best a few, Fast Ethernet ports, the DES-3326 Layer 3 switch has 24 Fast Ethernet ports and optionally, 2 Gigabit Ethernet ports. Where Introduction...
Page 20 WAN or the Internet. The DES-3326 can be thought of as 24 Fast Ethernet Layer 2 switching domains with a wire-speed router between each domain.
Page 21: The Functions Of A Layer 3 Switch
Virtual Private Networks (VPNs) for remote office access to the enterprise infrastructure. The DES-3326 can then be thought of as accomplishing two objectives. First as a tool to provide high-performance access to enterprise data servers and infrastructure, and second, to enhance the performance of network equipment already installed.
Page 22: Features
Ethernet/Fast Ethernet port. Multiple DES-3326 switches can be linked via the optional, 2-port Gigabit Ethernet module. Features The DES-3326 Switch was designed for easy installation and high performance in an environment where traffic on the network and the number of users increase continuously.
Page 23: Performance Features
24-port NWay Ethernet Switch User’s Guide One front panel slide-in module interface for a 2-port 1000BASE-SX, 1000BASE-LX, 1000BASE-T, or GBIC Gigabit Ethernet module. RS-232 DCE Diagnostic port (console port) for setting up and managing the Switch via a connection to a console terminal or PC using a terminal emulation program.
Page 24 24-port NWay Ethernet Switch User’s Guide IEEE 802.3z compliant for all Gigabit ports (optional module). IEEE 802.3x compliant Flow Control support for all Gigabit ports (optional module). IEEE 802.3ab compliant for 1000BASE-T (Copper) Gigabit ports (optional module). Data forwarding rate 14,880 pps per port at 100% of wire- speed for 10Mbps speed.
Page 25: Layer 3 Switch Features
GVRP – (GARP VLAN Registration Protocol) support for dynamic VLAN registration. As of firmware release 1.00- B14, GVRP is not supported on the DES-3326. Support for GVRP is planned for a later firmware release. 802.1p Priority support with 4 priority queues.
Page 26: Traffic Classification And Prioritization
24-port NWay Ethernet Switch User’s Guide Supports IP multi-netting. Supports IP packet de-fragmentation. Supports Path MTU discovery. Supports 802.1D frame support. Traffic Classification and Prioritization Based on 802.1p priority bits 4 priority queues Management RS-232 console port for out-of-band network management via a console terminal or PC.
Page 27: Optional Redundant Power Supply
DCHP Client support. DCHP Relay Agent. DNS Relay Agent. Password enabled. Optional Redundant Power Supply The DES-3326 24+2 Fast Ethernet Layer 3 Switch supports the optional DPS-1000 (Redundant Power Supply) to provide automatic power supply monitoring and switchover to a Introduction...
Page 28: Fast Ethernet Technology
24-port NWay Ethernet Switch User’s Guide redundant power supply (located in the chassis of the DPS-1000) in case of a failure in the DES-3326’ s internal power supply. Fast Ethernet Technology 100Mbps Fast Ethernet (or 100BASE-T) is a standard specified by the IEEE 802.3 LAN committee.
Page 29 24-port NWay Ethernet Switch User’s Guide Introduction...
Page 30: Unpacking And Setup
Mounting kit: 2 mounting brackets and screws Four rubber feet with adhesive backing One AC power cord This User’ s Guide with Registration Card If any item is found missing or damaged, please contact your local D-Link reseller for replacement. Unpacking and Setup...
Page 31: Installation
24-port NWay Ethernet Switch User’s Guide Installation Use the following guidelines when choosing a place to install the Switch: The surface must support at least 3 kg. The power outlet should be within 1.82 meters (6 feet) of the device. Visually inspect the power cord and see that it is secured to the AC power connector.
Page 32: Rack Installation
Figure 2-1. Installing rubber feet for desktop installation Rack Installation The DES-3326 can be mounted in an EIA standard-sized, 19-inch rack, which can be placed in a wiring closet with other equipment. To install, attach the mounting brackets on the switch’ s side panels (one on each side) and secure them with the screws provided.
Page 33: Power On
Figure 2-2B. Installing the switch on an equipment rack Power on The DES-3326 switch can be used with AC power supply 100-240 VAC, 50 - 60 Hz. The power switch is located at the rear of the unit adjacent to the AC power connector and the system fan. The switch’...
Page 34: Power Failure
24-port NWay Ethernet Switch User’s Guide All LED indicators will momentarily blink. This blinking of the LED indicators represents a reset of the system. The power LED indicator will blink while the Switch loads onboard software performs self-test. After approximately 20 seconds, the LED will light again to indicate the switch is in a ready state.
Page 35: Identifying External Components
XTERNAL OMPONENTS This chapter describes the front panel, rear panel, optional plug- in modules, and LED indicators of the DES-3326. Front Panel The front panel of the Switch consists of LED indicators, an RS- 232 communication port, a slide-in module slot, one switched MDI-X/MDI-II uplink port, and 23 (10/100 Mbps) Ethernet/Fast Ethernet ports.
Page 36: Rear Panel
24-port NWay Ethernet Switch User’s Guide An RS-232 DCE console port for setting up and managing the switch via a connection to a console terminal or PC using a terminal emulation program. A front-panel slide-in module slot for Gigabit Ethernet ports can accommodate a 2-port 1000BASE-T Gigabit Ethernet module, a 2-port 1000BASE-SX Gigabit Ethernet module, a 2 -port 1000BASE-LX Gigabit Ethernet module,...
Page 37: Side Panels
24-port NWay Ethernet Switch User’s Guide connector of the provided power cord into this socket, and the male side of the cord into a power outlet. Supported input voltages range from 100 ~ 240 VAC at 50 ~ 60 Hz. Side Panels The right side panel of the Switch contains two system fans (see the top part of the diagram below).
Page 38: Optional Plug-In Modules
24-port NWay Ethernet Switch User’s Guide Optional Plug-in Modules The DES 3326 24-port Fast Ethernet Layer 3 Switch is able to accommodate a range of optional plug-in modules in order to increase functionality and performance. These modules must be purchased separately. 1000BASE-T Module Figure 3-5.
Page 39: 1000Base-Sx Fiber Module
24-port NWay Ethernet Switch User’s Guide 1000BASE-SX Fiber Module Figure 3-6. 1000BASE-SX two-port module Front-panel module. Connects to 1000BASE-SX devices at full-duplex. Allows connections using multi-mode fiber optic cable in the following configurations: 62.5 m 62.5 m 50 m 50 m Modal bandwidth (min.
Page 40: 1000Base-Lx Fiber Module
24-port NWay Ethernet Switch User’s Guide 1000BASE-LX Fiber Module Figure 3-7. 1000BASE-LX two-port module Front-panel module. Connects to 1000BASE-LX devices at full-duplex. Supports multi-mode fiber-optic cable connections of up to 550 meters or 5 km single-mode fiber-optic cable connections. GBIC Two-Port Module Figure 3-8.
Page 41: Led Indicators
24-port NWay Ethernet Switch User’s Guide Connects to GBIC devices at full duplex only. Allows multi-mode fiber optic connections of up to 550 m (SX and LX) and single-mode fiber optic connections of up to 5 km (LX only). GBIC modules are available in –SX and –LX fiber optic media.
Page 42: Connecting The Switch
24-port NWay Ethernet Switch User’s Guide ONNECTING WITCH This chapter describes how to connect the DES 3226 to your Fast Ethernet network. Switch to End Node End nodes include PCs outfitted with a 10, 100 or 10/100 Mbps RJ-45 Ethernet/Fast Ethernet Network Interface Card (NIC) and most routers.
Page 43: Switch To Hub Or Switch
(Port 2x, 3x, etc.) and an Uplink (MDI-II) port. If you are using a crossover cable, the connection must be made from Uplink to Uplink (port 1x on the DES-3326), or from a crossed port to another crossed port.
Page 44: 10Base-T Device
24-port NWay Ethernet Switch User’s Guide A 10BASE-T hub or switch can be connected to the Switch via a two-pair Category 3, 4 or 5 UTP/STP straight cable. A 100BASE-TX hub or switch can be connected to the Switch via a two-pair Category 5e UTP/STP straight cable. If the other switch or hub contains an unused Uplink port, we suggest connecting the other device’...
Page 45: 100Base-Tx Device
24-port NWay Ethernet Switch User’s Guide 100 LED speed indicator is OFF. Link/Act indicator is ON. 100BASE-TX Device For a 100BASE-TX device, the Switch’ s LED indicators should display the following: 100 LED speed indicator is ON. Link/Act is ON. Connecting The Switch...
Page 46: Switch Management And Operating Concepts
DES-3326 switch. They are included to give a user who is unfamiliar with the concepts a brief overview of IP routing that is more complete – aid in the incorporation of the DES-3326 switch in existing IP routed networks.
Page 47: Local Console Management
6 – Using the Console Interface). A network administrator can manage, control and monitor the switch from the console program. The DES-3326 contains a CPU, memory for data storage, flash memory for configuration data, operational programs, and SNMP agent firmware.
Page 48: Ip Addresses And Snmp Community Names
24-port NWay Ethernet Switch User’s Guide switch’ s built-in Web-based management program (see Chapter 7 – Web-based Network Management). The operations to be performed and the facilities provided by these two built-in programs are identical. The console port is set at the factory for the following configuration: Baud rate: 9,600...
Page 49 24-port NWay Ethernet Switch User’s Guide Figure 5-1. Boot Screen The switch’ s MAC address can also be found from the console program under the Switch Information menu item, as shown below. Switch Management and Operating Concepts...
Page 50: Traps
24-port NWay Ethernet Switch User’s Guide Figure 5-2. Switch Information Screen In addition, you can also set an IP Address for a gateway router. This becomes necessary when the network management station is located on a different IP network from the Switch, making it necessary for management packets to go through a router to reach the network manager, and vice-versa.
Page 51 24-port NWay Ethernet Switch User’s Guide Note: SNMP community strings function like passwords in that the community string entered for a given IP address must be used in the management station software, or a trap will be sent. The following are trap types the switch can send to a trap recipient: This trap signifies that the Switch has Cold Start...
Page 52: Mibs
24-port NWay Ethernet Switch User’s Guide Link Up This trap is sent whenever the link of a port changes from link down to link up. Link Down This trap is sent whenever the link of a port changes from link up to link down. MIBs Management and counter information are stored in the Switch in the Management Information Base (MIB).
Page 53: Snmp
Modifying the configuration of network devices. The DES-3326 has a software program called an ‘ agent’ that processes SNMP requests, but the user program that makes the requests and collects the responses runs on a management station (a designated computer on the network).
Page 54: Authentication
24-port NWay Ethernet Switch User’s Guide Authentication The authentication protocol ensures that both the router SNMP agent and the remote user SNMP application program discard packets from unauthorized users. Authentication accomplished using ‘ community strings’ , which function like passwords. The remote user SNMP application and the router SNMP must use the same community string.
Page 55: Filtering
24-port NWay Ethernet Switch User’s Guide The aging time can be from 10 to 1,000,000 seconds with a default value of 300 seconds. A very long aging time can result in dynamic forwarding table entries that are out-of-date or no longer exist.
Page 56 24-port NWay Ethernet Switch User’s Guide Some filtering is done automatically by the switch: Dynamic filtering – automatic learning and aging of MAC addresses and their location on the network. Filtering occurs to keep local traffic confined to its segment. Filtering done by the Spanning Tree Protocol, which can filter packets based on topology, making sure that signal loops don’...
Page 57: Spanning Tree Protocol
Spanning Tree is incorrectly configured. Please read the following before making any changes from the default values. Note: The DES-3326 STP allows two levels of spanning trees to be configured. The first level constructs a spanning tree on the links between switches.
Page 58: Stp Operation Levels
Reconfigures the spanning tree without operator intervention. STP Operation Levels The DES-3326 switch allows for two levels of operation: the switch level and the port level. The switch level forms a spanning tree consisting of links between one or more switches.
Page 59 24-port NWay Ethernet Switch User’s Guide Bridge Identifier consists of two parts: (Not user-configurable a 16-bit priority and a 48-bit Ethernet except setting MAC address priority below) Priority A relative priority for each switch – 32768 lower numbers give a higher priority and a greater chance of a given switch being elected as the root bridge Hello Time...
Page 60: Bridge Protocol Data Units
24-port NWay Ethernet Switch User’s Guide Table 5-2. STP Parameters – Port Group Level Bridge Protocol Data Units For STP to arrive at a stable network topology, the following information is used: The unique switch identifier The path cost to the root associated with each switch port The port identifier STP communicates between switches on the network using Bridge Protocol Data Units (BPDUs).
Page 61: Creating A Stable Stp Topology
24-port NWay Ethernet Switch User’s Guide The shortest distance to the root switch is calculated for each switch A designated switch is selected. This is the switch closest to the root switch through which packets will be forwarded to the root. A port for each switch is selected.
Page 62 24-port NWay Ethernet Switch User’s Guide for the packet lifetime to expire for BPDU packets that were forwarded based on the old topology. The forward delay timer is used to allow the network topology to stabilize after a topology change. In addition, STP specifies a series of states a port must transition through to further ensure that a stable network topology is created after a topology change.
Page 63 24-port NWay Ethernet Switch User’s Guide Figure 5-3. STP Port State Transitions When you enable STP, every port on every switch in the network goes through the blocking state and then transitions through the states of listening and learning at power up. If properly configured, each port stabilizes to the forwarding or blocking state.
Page 64: User-Changeable Sta Parameters
24-port NWay Ethernet Switch User’s Guide Feature Default Value Enable state STP enabled for all ports Port priority Port cost Bridge Priority 32,768 Table 5-3. Default STP Parameters User-Changeable STA Parameters The factory default setting should cover the majority of installations.
Page 65: Illustration Of Stp
24-port NWay Ethernet Switch User’s Guide Max. Age The Max. Age can be from 6 to 40 seconds. At the end of the Max. Age, if a BPDU has still not been received from the Root Bridge, your Switch will start sending its own BPDU to all other Switches for permission to become the Root Bridge.
Page 66 24-port NWay Ethernet Switch User’s Guide packet will be passed indefinitely in a loop, potentially causing a network failure. STP can be applied as shown in Figure 5-4. In this example, STP breaks the loop by blocking the connection between Bridge B and C.
Page 67 24-port NWay Ethernet Switch User’s Guide Figure 5-4. Before Applying the STA Rules Note: In this example, only the default STP values are used. Switch Management and Operating Concepts...
Page 68 24-port NWay Ethernet Switch User’s Guide Figure 5-5. After Applying the STA Rules The switch with the lowest Bridge ID (switch C) was elected the root bridge, and the ports were selected to give a high port cost between switches B and C. The two (optional) Gigabit ports (default port cost = 4) on switch A are connected to one (optional) Gigabit port on both switch B and C.
Page 69: Port Aggregation
1000BASE-SX, -LX –TX or GBIC ports contained in a front-panel mounted module. Note: The DES-3326 allows the creation of up to 6 link aggregation groups, each group consisting of up of up to 8 links (ports). The aggregated links must be contiguous (they must have sequential port numbers), except the two (optional) Gigabit ports –...
Page 70 24-port NWay Ethernet Switch User’s Guide Figure 5-6. 800 Mbps Link Aggregation Group Switch Management and Operating Concepts...
Page 71: Setting Up Ip Interfaces Vlans
Switches that use a load-balancing scheme that sends the packets of a host-to-host data stream over multiple trunk ports cannot have a trunk connection with the DES-3326 switch. Setting Up IP Interfaces for VLANs A Virtual Local Area Network (VLAN) is a network topology configured according to a logical scheme rather than the physical layout.
Page 72: Notes About Vlans On The Des-3326
VLANs without a network device performing a routing function between the VLANs. 2. The DES-3326 supports only IEEE 802.1Q VLANs. The port untagging function can be used to remove the 802.1Q tag from packet headers to maintain compatibility with devices that are tag-unaware.
Page 73: Ieee 802.1Q Vlans
IEEE 802.1Q (tagged) VLANs are implemented on the DES-3326 Layer 3 switch. 802.1Q VLANs require tagging, which enables them to span the entire network (assuming all switches on the network are IEEE 802.1Q-compliant).
Page 74: 802.1Q Vlan Packet Forwarding
24-port NWay Ethernet Switch User’s Guide VLANs allow a network to be segmented in order to reduce the size of broadcast domains. All packets entering a VLAN will only be forwarded to the stations (over IEEE 802.1Q enabled switches) that are members of that VLAN, and this includes broadcast, multicast and unicast packets from unknown sources.
Page 75 24-port NWay Ethernet Switch User’s Guide Forwarding rules between ports – decides filter or forward the packet Egress rules – determines if the packet must be sent tagged or untagged. Figure 5-7. IEEE 802.1Q Packet Forwarding Switch Management and Operating Concepts...
Page 76: 802.1Q Vlan Tags
24-port NWay Ethernet Switch User’s Guide 802.1Q VLAN Tags The figure below shows the 802.1Q VLAN tag. There are four additional octets inserted after the source MAC address. Their presence is indicated by a value of 0x8100 in the EtherType field. When a packet’...
Page 77 24-port NWay Ethernet Switch User’s Guide Figure 5-8. IEEE 802.1Q Tag The EtherType and VLAN ID are inserted after the MAC source address, but before the originial EtherType/Length or Logical Link Control. Because the packet is now a bit longer than it was originally, the Cyclic Redundancy Check (CRC) must be recalculated.
Page 78: Port Vlan Id
24-port NWay Ethernet Switch User’s Guide Figure 5-9. Adding an IEEE 802.1Q Tag Port VLAN ID Packets that are tagged (are carrying the 802.1Q VID information) can be transmitted from one 802.1Q compliant network device to another with the VLAN information intact. This allows 802.1Q VLANs to span network devices (and indeed, the entire network –...
Page 79 24-port NWay Ethernet Switch User’s Guide the PVID of the port that is to transmit the packet, the switch will drop the packet. Within the switch, different PVIDs mean different VLANs. (remember that two VLANs cannot communicate without an external router). So, VLAN identification based upon the PVIDs cannot create VLANs that extend outside a given switch (or switch stack).
Page 80: Tagging And Untagging
24-port NWay Ethernet Switch User’s Guide Because some devices on a network may be tag-unaware, a decision must be made at each port on a tag-aware device before packets are transmitted – should the packet to be transmitted have a tag or not? If the transmitting port is connected to a tag- unaware device, the packet should be untagged.
Page 81: Layer 3-Based Vlans
VLANs are based on layer 3 information, but this does not constitute a ‘ routing’ function. Note: The DES-3326 allows an IP subnet to be configured for each 802.1Q VLAN that exists on the switch. Switch Management and Operating Concepts...
Page 82: Vlans In Layer 2 Only Mode
VLANs (in this case – IP subnets) without a network device performing a routing function between the VLANs (IP subnets). Note: The DES-3326 switch does not directly support IP switching, however it is possible to do the equivalent by assigning IP subnets to configured VLANs and then disabling the Routing Information Protocol (RIP).
Page 83 24-port NWay Ethernet Switch User’s Guide When the switch is in Layer 2 Only mode, 802.1Q VLANs are supported. Note: If no VLANs are configured on the switch and the switch is in Layer 2 Only mode, then all packets will be forwarded to any destination port.
Page 84 24-port NWay Ethernet Switch User’s Guide Engineering 9, 10, 11, 12 Marketing 13, 14, 15, 16 Finance 17, 18, 19, 20 Sales 1, 2, 3, 4 Backbone 25, 26 Table 5-4. VLAN Example – Assigned Ports In this case, 6 IP interfaces (or 6 subnets) are required, so a CIDR notation of 10.32.0.0/3 (or a 3-bit) addressing scheme will work.
Page 85: Dhcp Servers
24-port NWay Ethernet Switch User’s Guide The 6 IP interfaces, each with an IP address (or network) address (listed in the table above), and a subnet mask of 255.224.0.0 can be entered into the Setup IP Interface menu. Note: IP interfaces consist of two parts – a subnet mask and a network address.
Page 86 24-port NWay Ethernet Switch User’s Guide When the address lease expires, the DHCP client enters the renewing state. The client sends a request message to the DHCP server that provided the address. The DHCP server sends an acknowledgement that contains the new lease and configuration parameters.
Page 87: Broadcast Storms
24-port NWay Ethernet Switch User’s Guide network administrator has to take any action in the configuration process. Before loading TCP/IP with an address acquired from the DHCP server, DHCP clients check for an IP address conflict by sending an Address Resolution Protocol (ARP) request containing the address.
Page 88: Eliminating Broadcast Storms
SNMP agent can remove the blocking condition, returning the port to its normal operational state. In the DES-3326, the default trigger threshold is set to 128,000 broadcast packets per second (128 Kpps) for both 100 Mbps Fast Ethernet ports and the optional 1000 Mbps Gigabit Ethernet ports.
Page 89: Definitions
24-port NWay Ethernet Switch User’s Guide learn how to assign each interface on the router an IP address with an unique subnet. Definitions IP Address – the unique number ID assigned to each host or interface on a network. IP addresses have the form xxx.xxx.xxx.xxx.
Page 90 24-port NWay Ethernet Switch User’s Guide unique number is assigned to each network and to each computer within each network. This number is called the IP address. IP addresses are written in a ‘ dotted decimal’ notation to make them easier to work with. Some examples follow: 210.202.204.205 189.21.241.56 125.87.0.1...
Page 91: Address Classes
24-port NWay Ethernet Switch User’s Guide Highest possible IP address - 255.255.255.255 This would allow a maximum of 4,228,250,624 individual IP addresses to be assigned. This number is substantially reduced in practice, however because many of these addresses are reserved. The following chart can be used to convert octets in binary to decimal: Binary Octet Digit...
Page 92 24-port NWay Ethernet Switch User’s Guide address space. A new scheme was introduced called Classless Interdomain Routing (CIDR), as an extension of the classed addressing scheme. CIDR allows greater control over the number of IP addresses assigned to a subnet. The classed IP addressing scheme will be discussed first.
Page 93 24-port NWay Ethernet Switch User’s Guide For example, the IP address 10.42.73.210 is a Class A address (the first number is between 1 and 126), so the first octet (10) belongs to the network, and the remaining three octets belong to the node (42.73.210).
Page 94: Subnet Masking
24-port NWay Ethernet Switch User’s Guide Subnet Masking A subnet mask can be applied to an IP address to identify the network and the node parts of the address. A bitwise logical AND operation between the IP address and the subnet mask results in the Network Address (sometimes called the “...
Page 95: Calculating The Number Of Subnets And Nodes
24-port NWay Ethernet Switch User’s Guide reserved for the local network (when a host does not know it’ s network address) and for all hosts on the network (the broadcast address). This also applies to subnets. A subnet address cannot be all “0”s or all “1”s.
Page 96: Classless Interdomain Routing - Cidr
24-port NWay Ethernet Switch User’s Guide 00001010.00100000.00000000.00000000 10.32.0.0 Network Address 00001010.00101010.11111111.11111111 10.32.255.255 Broadcast Address This example uses a 3-bit subnet mask. (There are 3 additional bits added to the default Class A subnet mask of 8 bits). So the number of subnets is: –...
Page 97 24-port NWay Ethernet Switch User’s Guide network was given a Class C IP address that allowed 254 nodes. Most of these assigned addresses were never used. CIDR allows IP address space to be assigned in a way that the total number of available IP addresses in the assigned space more closely matches the network’...
Page 98 24-port NWay Ethernet Switch User’s Guide 255.255.224.0 2046 8190 16756740 255.255.240.0 4094 4094 16760836 255.255.248.0 8190 2046 16756740 255.255.252.0 16382 1022 16742404 255.255.254.0 32766 16710660 255.255.255.0 65534 16645636 255.255.255.128 131070 16514820 255.255.255.192 262142 16252804 255.255.255.224 525286 15728580 255.255.255.240 1048574 14680036 255.255.255.248 2097150 12582900...
Page 99: Internet Protocols
24-port NWay Ethernet Switch User’s Guide 255.255.255.192 255.255.255.224 255.255.255.240 255.255.255.248 255.255.255.252 Figure 5-9. Class C Subnet Masks Internet Protocols This is a brief introduction to the suite of Internet Protocols frequently referred to as TCP/IP. It is intended to give the reader a reasonable understanding of the available facilities and some familiarity with terminology.
Page 100 24-port NWay Ethernet Switch User’s Guide Figure 5-10. OSI Seven Layer Network Model Each layer is a distinct set of programs executing a distinct set of protocols designed to accomplish some necessary tasks. They are separated from the other layers within the same system or network, but must communicate and interoperate.
Page 101 24-port NWay Ethernet Switch User’s Guide functions and allow the layers to communicate. How these layers communicate within a stack (for example, within a given computer) is left to the operating system programmers. Figure 5-11. The Protocol Stack Between two protocol stacks, members of the same layer are known as peers and communicate by well-known (open and published) protocols.
Page 102: Layer 2
24-port NWay Ethernet Switch User’s Guide products from the same vendor) may communicate in completely different ways. As long as peers can communicate and interoperate, this has no impact on the functioning of the network. The communication between layers within a given protocol stack can be both different from a second stack and proprietary, but communication between peers on the same OSI layer is open and consistent.
Page 103: Layer 3
24-port NWay Ethernet Switch User’s Guide Layer 3 Commonly referred to as the routing layer, this layer provides logical partitioning of networks (subnetting), scalability, security, and Quality of Service (QoS). The backbone of the Internet is built using Layer 3 functions. IP is the premier Layer 3 protocol.
Page 104: Layer 7
24-port NWay Ethernet Switch User’s Guide Both TCP and UDP are layered on IP, which has minimal error recovery and detection. TCP forces retransmission of data that was lost by the lower layers, UDP does not. Layer 7 This layer, known as the application layer, provides access to either the end user application software such as a database.
Page 105 24-port NWay Ethernet Switch User’s Guide TCP/IP. TCP/IP handles the actual sending and receiving of the packets that make up the e-mail exchange. TCP makes sure the e-mail commands and messages are received by the appropriate computers. It keeps track of what is sent and what is received, and retransmits any packets that are lost or dropped.
Page 106: Packet Header Overview
24-port NWay Ethernet Switch User’s Guide Other protocols on other network devices can add and extract their own headers to and from packets as they cross networks. This is analogous to putting data into an envelope and sending the envelope to a higher-level protocol, and having the higher- level protocol put the entire envelope into it’...
Page 107 24-port NWay Ethernet Switch User’s Guide contain are. If there are 100 octets of data in each packet, the first packet is numbered 0, the second 100, the third 200, etc. To insure that the data in a packet is received uncorrupted, TCP adds the binary value of all the octets in the packet and writes the sum in the checksum field.
Page 108: Ip Level
24-port NWay Ethernet Switch User’s Guide The window field controls the amount of data being sent at any one time. It would require too much time and overhead to acknowledge each packet received. Each end of the TCP connection declares how much data it is able to receive at any one time by writing this number of octets in the window field.
Page 109: Ethernet Level
24-port NWay Ethernet Switch User’s Guide Figure 5-13. IP Packet Header The flags and fragment offset are used to keep track of packets that must be divided among several smaller packets to cross networks for which they are too large. The Time-to-Live (TTL) is the number of gateways the packet is allowed to cross between the source and destination.
Page 110 24-port NWay Ethernet Switch User’s Guide The Ethernet header is 14 octets that include the source and destination MAC address and a type code. There is no relationship between the MAC address of a network node and its IP address. There must be a database of Ethernet addresses and their corresponding IP addresses.
Page 111: Well-Known Sockets And The Application Layer
24-port NWay Ethernet Switch User’s Guide header and checks the checksum. It then looks at the type code. If the type code is for IP, the packet is given to IP. IP then removes the IP header and looks at its protocol field. If the protocol field is TCP, the packet is sent to TCP.
Page 112 24-port NWay Ethernet Switch User’s Guide from the client, so the FTP client must know how to connect to the server (must know the TCP port number) in order to send commands. The FTP Server can use any TCP port number to send the file, so long as it is sent as part of the connection setup.
Page 113: Udp And Icmp
24-port NWay Ethernet Switch User’s Guide UDP and ICMP There are many applications that do not require long messages that cannot fit into a single packet. Looking up computer names is an example. Users wanting to make connections to other computers will usually use a name rather than the computer’...
Page 114: The Domain Name System
Internet and has been adapted for use within intranets. For two DNS servers to communicate across different subnets, the DNS Relay of the DES-3326 must be used. The DNS servers are identified by IP addresses. Mapping Domain Names to Addresses Name-to-address translation is performed by a program called a Name server.
Page 115: Domain Name Resolution
24-port NWay Ethernet Switch User’s Guide The DNS servers are organized in a somewhat hierarchical fashion. A single server often holds names for a single network, which is connected to a root DNS server – usually maintained by an ISP. Domain Name Resolution The domain name system can be used by contacting the name servers one at a time, or by asking the domain name system to...
Page 116: Ip Routing
24-port NWay Ethernet Switch User’s Guide IP Routing IP handles the task of determining how packets will get from their source to their destination. This process is referred to as routing. For IP to work, the local system must be attached to a network. It is safe to assume that any system on this network can send packets to any other system, but when packets must cross other networks to reach a destination on a remote network, these...
Page 117: Packet Fragmentation And Reassembly
24-port NWay Ethernet Switch User’s Guide the Internet. This default gateway is also used whenever no specific route is found for a packet, or when there are several gateways on a network. Local computers can use default gateways, but the gateways themselves need a more complete routing table to be able to forward packets correctly.
Page 118: Arp
24-port NWay Ethernet Switch User’s Guide A field in the TCP header indicates that a packet has been fragmented, and other information aids in the reassembly of the packets into the original data. Gateways that connect networks of different packet size limits split the large packets into smaller ones and forward the smaller packets on their attached networks.
Page 119: Multicasting
24-port NWay Ethernet Switch User’s Guide Multicasting Multicasting is a group of protocols and tools that enable a single source point to send packets to groups of multiple destination points with persistent connections that last for some amount of time. The main advantage to multicasting is a decrease in the network load compared to broadcasting.
Page 120 24-port NWay Ethernet Switch User’s Guide addresses ranging from 224.0.0.1 to 224.0.0.255 is reserved for use by routing protocols and some other low-level topology discovery or maintenance protocols. Addresses ranging from 239.0.0.0 239.255.255.355 reserved local site administrative applications and not Internet-wide applications. There are some other Class D addresses already reserved for well-known groups such as “all routers on this subnet”, “all DVMRP routers”.
Page 121 24-port NWay Ethernet Switch User’s Guide OSPF IGP Designated Routers 224.0.0.6 224.0.0.7 ST Routers ST Hosts 224.0.0.8 All RIP2 Routers 224.0.0.9 224.0.0.10 All IGRP Routers Mobile Agents 224.0.0.11 224.0.0.12 DHCP Servers and Relay Agents All PIM Routers 224.0.0.13 224.0.0.14 RSVP Encapsulation All CBT Routers 224.0.0.15 224.0.0.16...
Page 122: Internet Group Management Protocol (Igmp)
24-port NWay Ethernet Switch User’s Guide Internet Group Management Protocol (IGMP) Destinations that want to receive multicast packets need to inform the immediately-neighboring routers. Each node that has requested to receive multicast packets must become a member of the multicast group to which these packets are being sent. The protocol through which hosts communicate this information with their local routers is called the Internet Group Management Protocol (IGMP).
Page 123 24-port NWay Ethernet Switch User’s Guide Figure 5-17. IGMP Message Format The IGMP Type codes are shown below: Type Meaning Membership Query (if Group Address is 0.0.0.0) 0X11 0x11 Specific Group Membership Query (if Group Address is Present) 0x16 Membership Report (version 2) 0x17 Leave a Group (version 2) 0x12...
Page 124 24-port NWay Ethernet Switch User’s Guide response from a particular group, the router assumes that there are no group members on the network. Note: The TTL field of query messages is set to 1 so that the queries do not get forwarded to other subnetworks. Based on the reports a router receives from the hosts it can decide whether to forward a multicast packet on a particular interface or not.
Page 125 24-port NWay Ethernet Switch User’s Guide Figure 5-18. IGMP State Transitions IGMP is used in the last step of delivering multicast packets. In the next section we see how the information obtained through IGMP can be exchanged among multicast routers such that routing multicast packets from any source to any set of receivers can be implemented.
Page 126: Multicast Routing Algorithms
24-port NWay Ethernet Switch User’s Guide Multicast Routing Algorithms Note: An algorithm is not a program. An algorithm is a statement of how a problem can be solved. A program is written to implement an algorithm. Several algorithms have been proposed for building multicast trees through which multicast packets can be delivered to the destination nodes.
Page 127: Multicast Spanning Trees
24-port NWay Ethernet Switch User’s Guide Multicast Spanning Trees A Spanning Tree is powerful and easy to implement. In this algorithm, a subset of links are selected to define a tree structure such that there is only one active path between any two routers.
Page 128: Reverse Path Multicasting (Rpm)
24-port NWay Ethernet Switch User’s Guide the neighboring router. Therefore, if this is the case there is no need to forward the message to that neighbor. This information can be easily obtained if a link-state routing protocol is being used. If a distance-vector routing protocol is being used, a neighbor can either advertise its previous hop for the source as part of its routing update messages or “poison-reverse”...
Page 129: Multicast Routing Protocols
24-port NWay Ethernet Switch User’s Guide the router from which it received the multicast packet. prune message indicates that the multicast packets of the that particular source group member pair should not be forwarded on the link from which the prune message has been received. It is important to note that prune messages are only sent one hop back towards the source.
Page 130: Distance Vector Multicast Routing Protocol (Dvmrp)
24-port NWay Ethernet Switch User’s Guide are densely distributed over the network. Then Protocol Independent Multicast – Sparse Mode (PIM-SM) protocol which performs better when group members are sparsely distributed. Distance Vector Multicast Routing Protocol (DVMRP) DVMRP is defined in RFC 1075 and was derived from the Routing Information Protocol (RIP) with the difference being that RIP forwards the unicast packets based on the information about the next-hop toward a destination, while DVMRP constructs...
Page 131: Protocol-Independent Multicast (Pim)
24-port NWay Ethernet Switch User’s Guide messages sent from that source. If there are more than one router on the subnet work with the same distance from the source, the router with the lowest IP address is elected. DVMRP supports tunnel interfaces (i.e. interfaces connecting two multicast routers through one or more multicast-unaware routers).
Page 132: Routing
24-port NWay Ethernet Switch User’s Guide DVMRP uses RIP-like exchange messages to build its unicast routing table, and MOSPF relies on an OSPF link-state database. PIM-DM also forwards multicast messages on all downstream interfaces until it receives prune messages, while DVMRP forwards multicast traffic to child nodes in the delivery tree.
Page 133 24-port NWay Ethernet Switch User’s Guide one hop from a directly connected network, two hops from a network that is reachable through one other router, and so on. Thus, the number of hops, or hop count, along a path from a given source to a given destination refers to the number of routers that a datagram encounters along a path.
Page 134 24-port NWay Ethernet Switch User’s Guide Routing table inconsistency is a fundamental problem that occurs with any distance-vector protocol in which update messages carry only pairs of destination network and distance to that network. The slow convergence problem is solved using a technique known as split horizon update.
Page 135 24-port NWay Ethernet Switch User’s Guide preserved for the duration of the hold down period. More important, incorrect routes will be preserved for the hold down period, even when alternatives exist. A final technique for solving the slow convergence problem is called poison reverse.
Page 136: Rip Version 1 Message Format
24-port NWay Ethernet Switch User’s Guide problems, many groups continue to use RIP and an IGP in wide area networks. RIP Version 1 Message Format RIP messages can be classified into two types: routing information messages and messages used to request information. Both use the same format which consist of a fixed header followed by and optional list of network and distance pairs.
Page 137: Rip 1 Address Conventions
24-port NWay Ethernet Switch User’s Guide The COMMAND field specifies an operation according the following table: Command Meaning Request for partial or full routing information Response containing network-distance pairs from sender’s routing table Turn on trace mode (obsolete) Turn off trace mode (obsolete) Reserved for Sun Microsystem’s internal use Update Request Update Response...
Page 138: Rip 1 Route Interpretation And Aggregation
24-port NWay Ethernet Switch User’s Guide that the remaining octets must be zero. The field labeled FAMILY OF NET 1 identifies the protocol family under which the network address should be interpreted. RIP uses values assigned to address families under the 4BSD UNIX operating system (IP addresses are assigned a value of 2).
Page 139: Rip Version 2 Extensions
24-port NWay Ethernet Switch User’s Guide means the RIP 1 cannot be used to propagate variable-length subnet addresses or classless addresses. Note: RIP 1 can only be used with classful or fixed-length subnet addresses. If a router running RIP 1 connects to one or more networks that are subnets of a prefix N as well as to one or more networks that are not part of N, the router must prepare different update messages for the two types of interfaces.
Page 140 24-port NWay Ethernet Switch User’s Guide Figure 5-21. Rip Message Format RIP 2 also attaches a 16-bit Route Tag to each entry. A router must send the same tag it receives when it transmits the route. Thus, the tag provides a way to propagate additional information such as the origin of the route.
Page 141: Transmitting Rip Messages
24-port NWay Ethernet Switch User’s Guide Transmitting RIP Messages RIP messages do not contain an explicit length field or an explicit count of entries. Instead, RIP assumes that the underlying delivery mechanism will tell the receiver the length of an incoming message.
Page 142 24-port NWay Ethernet Switch User’s Guide level only increases the span to 6. Thus, the limit that RIP imposes affects large autonomous systems or autonomous systems that do not have a hierarchical organization. Even in the best cases, however, hop counts provide only a crude measure of network capacity or responsiveness.
Page 143: Configuring The Switch Using The Console Interface
24-port NWay Ethernet Switch User’s Guide ONFIGURING THE WITCH SING THE ONSOLE NTERFACE Your 24-port NWay Ethernet Layer 3 Switch supports a console management interface that allows you to set up and control your Switch, either with an ordinary terminal (or terminal emulator), or over the network using the TCP/IP TELNET protocol.
Page 144: Before You Start
Routing mode settings are simply inactive when the switch is in Layer 2 Only mode. Before You Start The DES-3326 Layer 3 Switch supports a wide array of functions and gives great flexibility and increased network performance by eliminating the routing bottleneck between the WAN or Internet and the Intranet.
Page 145: Vlan Layout
7. Develop a redundancy scheme. Planning redundant links and routes to network critical resources can save valuable time in case of a link or device failure. The DES-3326 Spanning Tree function can be used to block the redundant link until it is needed.
Page 146: Assigning Ip Network Addresses And Subnet Masks To Vlans
Layer 3 VLANs must be configured on the switch before they can be assigned IP subnets. Further, the static VLAN configuration is specified on a per port basis. On the DES-3326, a VLAN can consist of end-nodes – just like a traditional layer 2 switch, but a VLAN can also consist of one or more layer 2 switches –...
Page 147: Defining Static Routes
Routes between the IP interfaces and a default gateway or other router with a WAN connection should be determined beforehand and entered into the static/default routing table on the DES-3326. Connecting to the Switch You can use the console interface by connecting the Switch to a VT100-compatible terminal or a computer running an ordinary terminal emulator program (e.g., the terminal program included...
Page 148: Console Usage Conventions
24-port NWay Ethernet Switch User’s Guide Console Usage Conventions The console interface makes use of the following conventions: 1. Items in <angle brackets> can be toggled between several choices using the space bar. 2. Items in [square brackets]can be changed by typing in a new value.
Page 149 24-port NWay Ethernet Switch User’s Guide Note: Press Ctrl+R to refresh the screen. This command can be used at any time to force the console program in the switch to refresh the console screen. Figure 6-1. Initial screen, first time connecting to the Switch Note: There is no initial username or password.
Page 150: Creating User Accounts
24-port NWay Ethernet Switch User’s Guide Figure 6-2. Main Menu Note: The first user automatically gets Root privileges (See Table 6-1). It is recommended to create at least one Root-level user for the Switch. Creating User Accounts To create a new user account, highlight Setup User Accounts from the Main Menu and press Enter: Configuring the Switch Using the Console Interface...
Page 151 24-port NWay Ethernet Switch User’s Guide Figure 6-3. Main Menu Figure 6-4. Setup User Accounts Menu Configuring the Switch Using the Console Interface...
Page 152: User Accounts Management
24-port NWay Ethernet Switch User’s Guide User Accounts Management From the Main Menu, highlight Setup User Accounts and press Enter, then the Setup User Accounts menu appears. 1. Toggle the Action:< > field to <Add> using the space bar. This will allow the addition of a new user. The other options are <Delete>...
Page 153 24-port NWay Ethernet Switch User’s Guide privileges may not be available to those with User+ and User privileges. The following table summarizes the Root, User+ and User privileges: Switch Configuration Privilege Management Root User+ User Configuration Read Only Read Only Network Monitoring Read Only Read Only...
Page 154: Saving Changes
24-port NWay Ethernet Switch User’s Guide Saving Changes The DES-3326 has two levels of memory; normal RAM and non- volatile or NV-RAM. Configuration changes are made effective by highlighting Apply and pressing Enter. When this is done, the settings will be immediately applied to the switching software in RAM, and will immediately take effect.
Page 155: Logging Onto The Switch Console
24-port NWay Ethernet Switch User’s Guide Figure 6-7. Save Changes Screen Once the switch configuration settings have been saved to NV- RAM, they become the default settings for the switch. These settings will be used every time the switch is rebooted. Highlight Yes and press Enter to reset the switch’...
Page 156: Updating Or Deleting User Accounts
24-port NWay Ethernet Switch User’s Guide 2. Type in your password and press Enter. 3. The main menu screen will be displayed based on your access level or privilege. Updating or Deleting User Accounts To update or delete a user password: Choose Setup User Accounts from the Main Menu.
Page 157: Viewing Current User Accounts
24-port NWay Ethernet Switch User’s Guide 2. Type in the Username for the user account you wish to change and enter the Old Password for that user account. 3. You can now modify the password or the privilege level for this user account. 4.
Page 158: Deleting A User Account
24-port NWay Ethernet Switch User’s Guide To view the current user accounts: Highlight Setup User Accounts from the Main Menu. The current user accounts can be read from following screen: Figure 6-11. Viewing User Accounts Deleting a User Account To delete a user account: Configuring the Switch Using the Console Interface...
Page 159 24-port NWay Ethernet Switch User’s Guide Figure 6-12. Deleting User Accounts 1. Toggle the Action:<Add> field to Delete. 2. Enter the Username and Old Password for the account you want to delete. You must enter the password for the account to be able to delete it. 3.
Page 160: Setting Up The Switch
24-port NWay Ethernet Switch User’s Guide Setting Up The Switch Basic Setup This section will help prepare the Switch user by describing the Switch Information, Remote Management Setup, Configure Ports, Serial Port Settings and Switch Settings menus. Figure 6-13. Main Menu – Basic Setup Switch Information Highlight Switch Information from the Main Menu and press Enter::...
Page 161: Remote Management Setup
24-port NWay Ethernet Switch User’s Guide Figure 6-14. Switch Information Menu The Switch Information shows the type of switch (Layer 3), which (if any) external modules are installed, and the switch’ s MAC Address (assigned by the factory and unchangeable). In addition, the Boot PROM and Firmware Version numbers are shown.
Page 162 24-port NWay Ethernet Switch User’s Guide SNMP v1 or to be able to access the Switch using the TELNET protocol or the WEB-based Manager. Please see the next chapter for Web-based network management information. The Remote Management Setup menu lets you specify how the switch will be assigned an IP address to allow the switch to be identified on the network.
Page 163 24-port NWay Ethernet Switch User’s Guide settings for the two different management interfaces used on the Switch: the Ethernet interface used for in-band communication, and the SLIP interface used over the console port for out-of-band communication. The fields listed under the Current Settings heading are those that are currently being used by the switch.
Page 164: Setting Up Trap Receivers
24-port NWay Ethernet Switch User’s Guide between 0 and 255. This address should be a unique address on the network assigned for use by the Network Administrator. The fields which require entries under this option are as follows: ? ? Subnet Mask – A Bitmask that determines the extent of the subnet that the Switch is on.
Page 165 24-port NWay Ethernet Switch User’s Guide Figure 6-16. Setup Trap Recipients Menu The IP Address field is the IP address of a management station (usually a computer) that is configured to receive the SNMP traps from the switch. The SNMP Community String is similar to a password in that stations that do not know the correct string cannot receive or request SNMP information from the switch.
Page 166: Configure Ports
24-port NWay Ethernet Switch User’s Guide Configure Ports Highlight Configure Ports from the main menu and press enter: Figure 6-17. Configure Ports Screen Toggle the View Ports:<1 to 12 > field, using the space bar, to view the configuration of either ports 1 through 12 or ports 13 through 24.
Page 167: Serial Port Settings
24-port NWay Ethernet Switch User’s Guide There is no automatic 100M/Half, 10M/Full, 10M/Half. adjustment of port settings with any option other than Auto. Serial Port Settings The Serial Port Settings screen allows the configuration of the switch’ s serial port and out-of-band TCP/IP communications using SLIP.
Page 168: Switch Operation Mode
24-port NWay Ethernet Switch User’s Guide The options are 2 mins, 5 mins, 10 mins, 15 mins, or Never. Baud Rate - Sets the serial bit rate that will be used to communicate the next time the Switch is restarted. Applies only when the serial port is being used for out- of-band (SLIP) management;...
Page 169: Changing The Switch Operation Mode
24-port NWay Ethernet Switch User’s Guide Layer 2 Only with IEEE 802.1Q VLAN support: the switching process is based upon the source and destination MAC addresses only. 802.1Q VLANs are supported and the switch is considered as a VLAN-tag aware device. IP Routing with IEEE 802.1Q VLAN support: the switching process is based upon the IP source and destination addresses, if present.
Page 170 24-port NWay Ethernet Switch User’s Guide Figure 6-19. Switch Settings Screen Highlight Switch Operation Mode on the Switch Settings menu and press enter. Figure 6-20. Switch Mode Selection Screen Configuring the Switch Using the Console Interface...
Page 171 24-port NWay Ethernet Switch User’s Guide The field Select switch operation mode:< > can be toggled using the space bar to one of the two switch operation modes: Layer 2 Only, Support IEEE 802.1Q VLANs and IP Routing, Support IEEE 802.1Q VLANs. To make a change in the operation mode of the switch effective, highlight APPLY and press enter.
Page 172 24-port NWay Ethernet Switch User’s Guide Figure 6-22. Main Menu – Layer 3 IP Routing Mode Figure 6-23. Main Menu – Layer 2 Switching Mode Configuring the Switch Using the Console Interface...
Page 173: Layer 2 Switch Settings
24-port NWay Ethernet Switch User’s Guide Layer 2 Switch Settings Note: Layer 2 Switch functions and settings are also available when the switch is configured to operate in the IP Routing (Layer 3) mode. To access the Layer 2 Switch Settings menu, highlight Layer 2 Switch Settings on the Switch Settings menu and press Enter: Figure 6-24.
Page 174 (see Advanced Setup – Spanning Tree for group and port STP setup). Switch GVRP: <Enabled>As of firmware release 1.00-B19, GVRP is supported on the DES-3326. Support for GVRP is planned for a later firmware release. As such this field cannot be changed.
Page 175: Layer 3 Ip Routing Protocol Settings
24-port NWay Ethernet Switch User’s Guide Upper Threshold for Module Ports: [128]Kpps This is the number of thousands Broadcast/Multicast packets per second received by the switch – on one of the module ports – that will trigger the switch’ s reaction to a Broadcast/Multicast storm.
Page 176 24-port NWay Ethernet Switch User’s Guide Figure 6-25. Layer 3 IP Routing Protocol Settings IP Multicast Settings: DVMRP state :<Disabled> This field can be toggled between Enabled and Disabled using the space bar. This enables or disables, globally, the Distance-Vector Multicast Routing Protocol (DVMRP).
Page 177: Layer 3 Switch Mode - Setup Rip
24-port NWay Ethernet Switch User’s Guide The DVMRP and PIM-DM are set using the IP Multicasting Settings – from the Main Menu under Multicasting. Highlight APPLY and press enter to make the changes current. Layer 3 Switch Mode - Setup RIP The Routing Information Protocol (RIP) is a distance-vector protocol that uses the hop count as its criteria for making routing decisions.
Page 178: Interface Name
24-port NWay Ethernet Switch User’s Guide protocol to be turned on or off without changing the RIP setup.Highlight APPLY and press enter to make the changes current. Highlight Setup RIP on the RIP Configuration menu (from the Setup Layer 3 – IP Networking menu) and press enter. Figure 6-27.
Page 179: Advanced Setup
24-port NWay Ethernet Switch User’s Guide RIP protocol will be used to interpret received RIP packets. Disabled prevents the reception of RIP packets. Authentication:<Enabled> is toggled between Enabled and Disabled. When authentication is enabled, a password is used to authenticate communication between routers on the network. Authentication is only supported when RIP is in V1 Compatible or V2 mode.
Page 180: Vlans By Switch Operating Mode - Layer 2 Only And Ip
24-port NWay Ethernet Switch User’s Guide switch reserves VLAN, called DEFAULT_VLAN for internal use. The factory default setting assigns all ports on the switch to the DEFAULT_VLAN. As new VLANs are configured, there respective member ports are removed from the DEFAULT_VLAN. If the DEFAULT_VLAN is reconfigured, all ports are again assigned to it.
Page 181 24-port NWay Ethernet Switch User’s Guide Figure 6-27. VLAN Menu To create an 802.1Q VLAN, highlight Edit 802.1Q VLANs and press Enter: Figure 6-28. Edit 802.1Q VLANs Menu Configuring the Switch Using the Console Interface...
Page 182 24-port NWay Ethernet Switch User’s Guide To create an 802.1Q VLAN, toggle the Action: <Add/Modify> field to Add/Modify using the space bar. Enter a VLAN ID number in the VID#[ ] field and a name for the new VLAN in the VLAN Name:[ ] field.
Page 183 24-port NWay Ethernet Switch User’s Guide To set a port as either a Tagged or an Untagged port: Highlight the first field of Tagging (U/T):[ ][ ][ ] field. Each port’ s state can be set by highlighting the port’ s entry using the arrow keys and then toggling between U or T using the space bar.
Page 184 24-port NWay Ethernet Switch User’s Guide Example 802.1Q VLAN add screen: Figure 6-29. Edit 802.1Q VLANs Menu Note: The default VLAN includes all of the ports on the switch at first boot. As new VLANs are added, the member ports of the new VLAN are deleted from the default VLAN.
Page 185 24-port NWay Ethernet Switch User’s Guide Figure 6-30. VLAN Menu To configure the port settings of an 802.1Q VLAN, highlight Configure 802.1Q Port Settings and press enter: Configuring the Switch Using the Console Interface...
Page 186 24-port NWay Ethernet Switch User’s Guide Figure 6-31. Configure 802.1Q Port Settings Each port can be configured to use an Ingress Filter. The ports to be configured in a given session can be identified by either entering a range of port numbers or by entering the PVID#. Ingress filtering is toggled between On and Off using the space bar.
Page 187 GMRP – Group Multicast Registration Protocol – this enables the port to dynamically become a member of a multicast group. As of firmware release 1.00-B19, GMRP is supported on the DES-3326. To edit an existing 802.1Q VLAN: Highlight VLANs on the main menu and press Enter: Figure 6-32.
Page 188 24-port NWay Ethernet Switch User’s Guide Figure 6-33. Edit 802.1Q VLANs Menu edit existing 802.1Q VLAN, highlight Action:<Add/Modify> field and toggle between Add/Modify and Delete. In the Add/Modify mode, both individual entrees to a selected VLAN and entire VLANs can be added. In the Delete mode, entire VLANs can be deleted.
Page 189 24-port NWay Ethernet Switch User’s Guide The ports are further set to be either a Tagged or an Untagged port. To edit the 802.1Q VLAN membership of a port: Highlight the first field of Membership (E/F/-): [ ][ ][ ]. Each port’...
Page 190 24-port NWay Ethernet Switch User’s Guide T - specifies the port as a Tagged member of the VLAN. When an untagged packet is transmitted by the port, the packet header is changed to include the 32-bit tag associated with the PVID (Port VLAN Identifier – see below).
Page 191 GMRP – Group Multicast Registration Protocol – this enables the port to dynamically become a member of a multicast group. As of firmware release 1.00-B19, GMRP is supported on the DES-3326. Note: Each IP interface on the switch corresponds to a VLAN.
Page 192 24-port NWay Ethernet Switch User’s Guide Marketing 13, 14, 15, 16 Finance 17, 18, 19, 20 Sales 1, 2, 3, 4 Backbone 25, 26 Table 6-1. VLAN Example – Assigned Ports In this case, 6 IP interfaces (or 6 subnets) are required, so a CIDR notation of 10.32.0.0/11 (or a 11-bit) addressing scheme will work.
Page 193 24-port NWay Ethernet Switch User’s Guide The 6 IP interfaces, each with an IP address (or network) address (listed in the table above), and a subnet mask of 255.224.0.0 can be entered into the Setup IP Interface menu. Note: IP interfaces consist of two parts – a subnet mask and an IP address.
Page 194 24-port NWay Ethernet Switch User’s Guide Figure 6-35. Layer 3 – IP Networking Menu Highlight Setup IP Interface and press enter. Figure 6-36. Layer 3 – IP Networking Menu Configuring the Switch Using the Console Interface...
Page 195 24-port NWay Ethernet Switch User’s Guide Toggle the Action:<Add/Modify> field to Add/Modify. Choose a name for the interface to be added and enter it in the Interface Name:[ ] field. The corresponding VLAN ID must also be entered in the VID[ ] field.
Page 196: Multicasting
24-port NWay Ethernet Switch User’s Guide about this interface will be changed to default.(include RIP,IP multicast interface configuration,BOOTP/DHCP relay) Multicasting Layer 2 Multicast Setup IGMP Snooping Settings – by VLAN To access the Multicasting Menu, highlight Multicasting from the Main Menu and press enter. Figure 6-37.
Page 197 24-port NWay Ethernet Switch User’s Guide To Enable or Disable IGMP Snooping for a VLAN, highlight IGMP Snooping Settings, and press enter. Figure 6-38. IGMP Snooping Settings To edit a VLAN’ s IGMP Snooping Settings: Enter the VID of the VLAN for which the IGMP settings are to be edited.
Page 198 24-port NWay Ethernet Switch User’s Guide Highlight Switch Settings from the Main Menu and press enter. Figure 6-39. Switch Settings Menu Highlight Layer 2 Switch Settings and press enter. Configuring the Switch Using the Console Interface...
Page 199: Ieee 802.1Q Multicast Forwarding
24-port NWay Ethernet Switch User’s Guide Figure 6-39. Layer 2 Switch Settings Highlight the IGMP Snooping:< > field and toggle between Enabled and Disabled using the space bar. This enables or disables IGMP Snooping globally for the switch. Highlight APPLY and press enter to make the current changes active.
Page 200: Static Router Port
24-port NWay Ethernet Switch User’s Guide forwarding table, select Add/Modify and enter the VID of the VLAN that will be receiving the multicast packets. Enter the MAC address of the multicast source, and then enter the member ports. Each port can be an Egress, Forbidden, or a Non-member of the multicast group, on a per-VLAN basis.
Page 201 Thus, forwarding all IP UDP multicast packets to a static router port on the DES-3326 guarantees that all multicast routers – attached to the DES-3326 – can reach all multicast group members. To setup a static router port, highlight Static Router Port Settings from the Multicasting Menu and press enter.
Page 202 24-port NWay Ethernet Switch User’s Guide Figure 6-41. Static Router Port Settings Note: All IGMP Report packets will be forwarded to the router port. Note: IGMP queries (from the router port) will be flooded to all ports. Note: All UDP multicast packets will be forwarded to the router port.
Page 203: Layer 3 Multicasting
24-port NWay Ethernet Switch User’s Guide The Action:< > field can be toggled between Add/Modify and Delete using the space bar. To add a port to the static router port table, select Add/Modify and enter the VID of the VLAN the router port will belong to.
Page 204 24-port NWay Ethernet Switch User’s Guide Figure 6-42. Multicasting Menu To setup the IEEE802.1q Multicast Forwarding table, highlight IEEE802.1q Multicast Forwarding and press enter. Configuring the Switch Using the Console Interface...
Page 205 24-port NWay Ethernet Switch User’s Guide Figure 6-43. IEEE 802.1Q Multicast Forwarding Settings The Action:< > field can be toggled between Add/Modify and Delete using the space bar. To add a new entry to the multicast forwarding table, select Add/Modify and enter the VID of the VLAN that will be receiving the multicast packets.
Page 206 24-port NWay Ethernet Switch User’s Guide Figure 6-44. Setup IP Multicast Menu To configure the multicast interface: Highlight Multicast Interface Configuration and press enter. Configuring the Switch Using the Console Interface...
Page 207 24-port NWay Ethernet Switch User’s Guide Figure 6-45. Multicast Interface Configuration Enter the name of the IP interface that is to be configured for multicasting in the Interface Name:[ ] field. This must be a previously configured IP interface. See Setting up IP Interfaces, Chapter 6 of this manual for more information.
Page 208: Dvmrp
24-port NWay Ethernet Switch User’s Guide Figure 6-46. IGMP Interface Configuration Enter name interface Interface- Name:[ ] field. This interface must be previously defined. The Ver:< > field can be toggled between 1 and 2. This is the version of IGMP that the interface will use (IGMP version 1 or version 2).
Page 209 24-port NWay Ethernet Switch User’s Guide Figure 6-47. DVMRP Interface Configuration Enter the name of the IP interface for which DVMRP is to be configured in the Interface Name:[ ] field. This must be a previously defined IP interface. See Setting up IP Interfaces, Chapter 6 of this manual for more information.
Page 210 24-port NWay Ethernet Switch User’s Guide relies upon RIP hop counts to calculate ‘ shortest paths’ back to the source of a multicast message, but defines a ‘ route cost’ to calculate which branches of a multicast delivery tree should be ‘ pruned’ – once the delivery tree is established.
Page 211: Pim-Dm
24-port NWay Ethernet Switch User’s Guide It is similar to, but not defined as, the hop count in RIP. The default cost is 1. Note: Route cost is a relative number that is used by DVMRP to calculate which branches of a multicast delivery tree should be ‘...
Page 212 24-port NWay Ethernet Switch User’s Guide Figure 6-48. PIM-DM Interface Configuration Enter the name of the IP interface for which PIM-DM is to be configured in the Interface Name:[ ] field. This must be a previously defined IP interface. See Setting up IP Interfaces, Chapter 6 of this manual for more information.
Page 213 24-port NWay Ethernet Switch User’s Guide transmitting Hello messages to advertise its availability to become the root router. The default is 30 seconds. The Join/Prune Interval:[60 ] field allows an entry of between 1 and 65535 seconds and determines the interval between transmitting (flooding to all interfaces) multicast messages to downstream routers, and automatically ‘...
Page 214: Static Router Port
IGMP snooping or transmit/forward IGMP report packets. Thus, forwarding all IP UDP multicast packets to a static router port on the DES-3326 guarantees that all ports of a multiport router – attached to the DES-3326 – can reach all multicast group members through the attached router’...
Page 215 24-port NWay Ethernet Switch User’s Guide To setup a static router port: Highlight Setup Static Router Port from the Multicasting Menu and press enter. Figure 6-49. Static Router Port Setup Note: All IGMP Report packets will be forwarded to the router port.
Page 216: Port Mirroring
24-port NWay Ethernet Switch User’s Guide Note: A router port will be dynamically configured when IGMP query packets, RIPv2 multicast, DVMRP multicast, PIM-DM multicast packets are detected flowing into a port. The Action:< > field can be toggled between Add/Modify and Delete using the space bar.
Page 217 24-port NWay Ethernet Switch User’s Guide Figure 6-50. Mirroring Menu To select the target port, highlight Target Port Selection and press enter. Figure 6-51. Target Port Selection Configuring the Switch Using the Console Interface...
Page 218 24-port NWay Ethernet Switch User’s Guide The target port is the port where information will be duplicated and sent for capture and network analysis. This is the port where a network analyzer would be attached to capture packets duplicated from the source port. To select the source port(s) for mirroring: Highlight Setup Port Mirroring and press enter.
Page 219: Priority
24-port NWay Ethernet Switch User’s Guide Up to 25 entries can be made to the port mirroring table, but it should be noted that a faster port (a 1000 Mbps Gigabit Ethernet port, for example) should not be mirrored to a slower port (one of the 24 100 Mbps Fast Ethernet port), because many packets will be dropped.
Page 220: Filtering
24-port NWay Ethernet Switch User’s Guide Enter the VID (VLAN ID) in the VID:[ ] field and the MAC address for which the priority queue is required in the MAC Address:[ ] field. The Priority Level:< > field can be toggled between Low, Med-L (Medium Low) , Med-H (Medium High), and High, corresponding to the priority of packets sent to or transmitted from the MAC address entered above.
Page 221 24-port NWay Ethernet Switch User’s Guide Figure 6-54. Forwarding Menu – MAC Address Highlight MAC Address Forwarding and press enter. Figure 6-55. Static Unicast MAC Forwarding Setup Configuring the Switch Using the Console Interface...
Page 222: Layer 3 (Ip Routing) Filtering
24-port NWay Ethernet Switch User’s Guide The Action:< > field can be toggled between Add/Modify and Delete using the space bar. Enter the VLAN ID in the VID: [ ] field and the MAC address to be filtered in the MAC Address:[ ] field.
Page 223 24-port NWay Ethernet Switch User’s Guide Figure 6-56. Filtering Menu – Layer 3 To enter a MAC address into the filtering table: Highlight MAC Address Filter and press enter. Configuring the Switch Using the Console Interface...
Page 224 24-port NWay Ethernet Switch User’s Guide Figure 6-57. Setup MAC Address Filter The Action:< > field can be toggled between Add/Modify and Delete using the space bar. Enter the VLAN ID in the VID:[ field and the MAC address to be filtered in the MAC ] field.
Page 225 24-port NWay Ethernet Switch User’s Guide Figure 6-58. IP Address Filtering Setup The Action:< > field can be toggled between Add/Modify and Delete using the space bar. Enter the IP address to be filtered in the IP Address:[ ] field. The Source/Destination: <...
Page 226: Forwarding
24-port NWay Ethernet Switch User’s Guide Forwarding Layer 2 Forwarding Layer 2 Only switch operation mode To enter a MAC address into the switch’ s forwarding table: Highlight Forwarding from the Main Menu and press enter. Figure 6-59. Forwarding Menu – Layer 2 Highlight MAC Address Forwarding from the Forwarding Menu and press enter.
Page 227: Ip Routing Forwarding
24-port NWay Ethernet Switch User’s Guide Figure 6-60. Static Unicast MAC Forwarding Setup – Layer 2 The Action:< > field can be toggled between Add/Modify and Delete using the space bar. Enter the VLAN ID in the VID:[ field and the MAC address to be statically entered in the forwarding table in the MAC Address:[ ] field.
Page 228: Mac Address Forwarding
24-port NWay Ethernet Switch User’s Guide With the switch in Layer 3 Operation mode, entrees into the switch’ s forwarding table can be made using both MAC addresses and IP addresses. Static IP forwarding is accomplished by the entry of a Static IP Route. Static Address Resolution Protocol (ARP) entrees can also be made from the Forwarding Menu.
Page 229 24-port NWay Ethernet Switch User’s Guide Figure 6-62. Static Unicast MAC Forwarding – Layer 3 The Action:< > field can be toggled between Add/Modify and Delete using the space bar. Enter the VLAN ID in the VID:[ field and the MAC address to be statically entered in the forwarding table in the MAC Address:[ ] field.
Page 230 24-port NWay Ethernet Switch User’s Guide Highlight Static/Default Routes from the Forwarding Menu and press enter. Figure 6-63. Static IP Route Setup The Action:< > field can be toggled between Add and Delete using the space bar. Enter the IP address in the IP Address:[ ] field and subnet mask in the Subnet Mask:[ ] field.The IP address of the gateway(usually a router with a connection to a WAN or the Internet)is entered in the Gateway IP:[ ] field and...
Page 231 24-port NWay Ethernet Switch User’s Guide Static ARP To make a static ARP entry: Highlight Static ARP from the Forwarding menu and press enter. Figure 6-64. Setup Static ARP Entries menu The Action:< > field can be toggled between Add/Modify and Delete using the space bar.
Page 232: Spanning Tree
24-port NWay Ethernet Switch User’s Guide Spanning Tree Switch Spanning Tree Settings To globally configure STP on the switch: Highlight Spanning Tree on the main menu and press Enter. Figure 6-65. Configure Spanning Tree - Global Note: The Spanning Tree Protocol (STP) operates on two levels: on the switch level, the settings are globally implemented.
Page 233 24-port NWay Ethernet Switch User’s Guide The user-changeable parameters in the Switch are as follows: Max. Age: [ ] The Max. Age can be set from 6 to 40 seconds. At the end of the Max. Age, if a BPDU has still not been received from the Root Bridge, your Switch will start sending its own BPDU to all other Switches for permission to become the Root Bridge.
Page 234: Port Group Spanning Tree Settings
Port Group Spanning Tree Settings In addition to setting Spanning Tree parameters for use on the switch level, the DES-3326 allows for the configuration of groups of ports, each port-group of which will have its own spanning tree, and will require some of its own configuration settings. An STP Group will use the switch-level parameters entered above, with the addition of Port Priority and Port Cost.
Page 235 24-port NWay Ethernet Switch User’s Guide Figure 6-66. Port Group STP Configuration Toggle the Action:<Add/Modify> field to Add/Modify. Choose a name for the group and enter it in the Group Name:[ field. The group name does not necessarily have to correspond to any name that has been previously entered in the switch’...
Page 236 24-port NWay Ethernet Switch User’s Guide Figure 6-67. Port Group STP Settings Toggle the View Ports:< > field to the range of ports to be configured. The Fast Ethernet ports displayed for configuration in groups of 12 and the two (optional) Gigabit Ethernet ports are displayed together.
Page 237: Link Aggregation
– such as a server or server farm – to the backbone of a network. Note: The DES-3326 allows the creation of up to 6 link aggregation groups, each group consisting of up of up to 8 links (ports).
Page 238 24-port NWay Ethernet Switch User’s Guide Note: The Spanning Tree Protocol will treat a link aggregation group as a single link, on the switch level. On the port level, the STP will use the port parameters of the base port in the calculation of port cost and in determining the state of the link aggregation group.
Page 239: Switch Utilities
24-port NWay Ethernet Switch User’s Guide Note: The two (optional) Gigabit ports can only be grouped together as a link aggregation group. They cannot be combined with Fast Ethernet ports in a link aggregation group. Specify the Group Width:[2]. This is the number of ports, in sequential order from the base port, that will be included in the link aggregation group.
Page 240: Updating Firmware
24-port NWay Ethernet Switch User’s Guide Figure 6-69. Switch Utilities Menu Note: Trivial File Transfer Protocol (TFTP) services allow the switch firmware to be upgraded by transferring a new firmware file from a TFTP server to the switch. A configuration file can also be loaded into the switch from a TFTP server, switch settings can be saved to the TFTP server, and a history log can be uploaded from the switch to the TFTP server.
Page 241 24-port NWay Ethernet Switch User’s Guide Figure 6-70. Upgrade Firmare Enter the IP address of the TFTP server in the Server IP Address:[ ] field. Note: The TFTP server must be on the same IP subnet as the switch. Enter the path and the filename to the firmware file on the TFTP server.
Page 242: Downloading A Configuration File
24-port NWay Ethernet Switch User’s Guide Downloading a Configuration File To download a switch configuration file from a TFTP server: Highlight Use a Configuration File on TFTP Server and press enter. Figure 6-71. Download Configuration File Enter the IP address of the TFTP server and specify the location of the switch configuration file on the TFTP server.
Page 243: Uploading A Settings File
24-port NWay Ethernet Switch User’s Guide Uploading a Settings File To upload a settings file to the TFTP server: Highlight Save Settings to TFTP Server and press enter. Figure 6-72. Upload Setting File Enter the IP address of the TFTP server and the path and filename of the settings file on the TFTP server and press APPLY.
Page 244: Testing Connectivity With Ping
24-port NWay Ethernet Switch User’s Guide Figure 6-73. Upload Log File Enter the IP address of the TFTP server and the path and filename for the history log on the TFTP server. Highlight APPLY and press enter to make the changes current. Highlight START and press enter to initiate the file transfer.
Page 245: Layer 3 Utilities
24-port NWay Ethernet Switch User’s Guide Figure 6-74. Ping Connectivity Test Enter the IP address of the network device to be pinged and the number of test packets to be sent (3 is usually enough). Highlight START and press enter to initiate the ping program. Layer 3 Utilities Layer 3 (IP Routing) switch operation mode adds BOOTP Relay and DNS Relay to the utilities available on the switch.
Page 246 24-port NWay Ethernet Switch User’s Guide Figure 6-75. Switch Utilities Menu – Layer 3 Highlight BOOTP/DHCP Relay on the Switch Utilities menu and press enter. Figure 6-76. BOOTP/DHCP Relay Setup – Layer 3 Configuring the Switch Using the Console Interface...
Page 247: Dns Relay
24-port NWay Ethernet Switch User’s Guide The Action:< > field can be toggled between Add and Delete using the space bar. Toggle to Add and enter the subnet name for which BOOTP Relay will be active. The subnet’ s network IP address will be displayed in the IP: field.
Page 248 24-port NWay Ethernet Switch User’s Guide Enabled, enter the IP address of the Primary name server and a secondary server, if so desired. The DNS Relay Cache Status:<Disabled> can be toggled between Disabled and Enabled. This determines if a DNS cache will be enabled on the switch.
Page 249: Network Monitoring
24-port NWay Ethernet Switch User’s Guide address. Highlight APPLY and press enter to make the change current. Use Save Changes to enter the table into NV-RAM. Network Monitoring DES-3326 provides extensive network monitoring capabilities. Layer 2 Network Monitoring To display the network data compiled by the switch: Highlight Network Monitoring on the Main Menu and press enter.
Page 250: Port Utilization
24-port NWay Ethernet Switch User’s Guide Port Utilization To view the port utilization: Highlight Port Utilization on the Network Monitoring menu and press enter. Figure 6-80. Port Utilization Table The Port Utilization screen shows the number of packets transmitted and received per second and calculates the percentage of the total available bandwidth being used on the port (displayed under %Util.).
Page 251: Port Packet Analysis Table
24-port NWay Ethernet Switch User’s Guide Figure 6-81. Port Error Statistics Table The Module:<Base Unit> field can be toggled between Base Unit and Slot-1 to select which group of ports will be displayed. Enter the port number of the port to be viewed. Interval:<2 sec>...
Page 252: Mac Address Forwarding Table
24-port NWay Ethernet Switch User’s Guide Figure 6-82. Port Packet Size and Mode Analysis Table In addition to the size of packets received or transmitted by the selected port, statistics on the number of unicast, multicast, and broadcast packets are displayed. MAC Address Forwarding Table To view the MAC address forwarding table: Highlight Browse MAC Address on the Network Monitoring...
Page 253: Gvrp Status Table
GVRP Status Table As of firmware release 1.00-B14, GVRP is not supported on the DES-3326. Support for GVRP is planned for a later firmware release To view the GVRP status table: Configuring the Switch Using the Console Interface...
Page 254: Gmrp Status Table
Figure 6-84. GVRP Status Table GMRP Status Table As of firmware release 1.00-B14, GMRP is not supported on the DES-3326. Support for GMRP is planned for a later firmware release To view the GMRP status table: Highlight GMRP Status from the Network Monitoring table and press enter.
Page 255: Igmp Snooping Table
24-port NWay Ethernet Switch User’s Guide Figure 6-85. GMRP Status Table IGMP Snooping Table To view the IGMP snooping table: Highlight IGMP Status from the Network Monitoring menu and press enter. Configuring the Switch Using the Console Interface...
Page 256: Switch History Log
24-port NWay Ethernet Switch User’s Guide Figure 6-86. IGMP Snooping Status Table Switch History Log To view the switch history log: Highlight Switch History from the Network Monitoring menu and press enter. Configuring the Switch Using the Console Interface...
Page 257: Layer 3 Network Monitoring
24-port NWay Ethernet Switch User’s Guide Figure 6-87. Switch History Table Layer 3 Network Monitoring When the switch is in Layer 3 (IP Routing) mode, several items are added to the Network Monitoring menu. The following items are added to the Network Monitoring menu when the switch is in Layer 3 (IP Routing) mode: Browse IP Address Routing Table...
Page 258: Ip Address Forwarding Table
24-port NWay Ethernet Switch User’s Guide Figure 6-88. Network Monitoring Menu – Layer 3 IP Address Forwarding Table To view the IP address forwarding table: Highlight Browse IP Address from the Network Monitoring menu and press enter. Configuring the Switch Using the Console Interface...
Page 259: Ip Routing Table
24-port NWay Ethernet Switch User’s Guide Figure 6-89. IP Forwarding Table – Layer 3 To Jump to a particular IP address, enter the IP address in the Jump to IP Address:[0.0.0.0] field, highlight GO, and press enter. IP Routing Table To view the contents of the routing table: Highlight Routing Table on the Network Monitoring menu and press enter.
Page 260: Arp Table
24-port NWay Ethernet Switch User’s Guide Figure 6-90. View the IP Routing Table To Jump to a particular Destination IP address, enter either the IP address in the Jump to Destination Address:[0.0.0.0] field, the gateway address in the Gateway:[0.0.0.0] field, and the subnet mask in the Mask:[0.0.0.0] field, highlight GO, and press enter.
Page 261: Ip Multicast Forwarding Table
24-port NWay Ethernet Switch User’s Guide Figure 6-91. View the ARP Table To Jump to a particular IP interface or an IP address, enter either the IP interface name in the Jump to Interface ] field and enter the IP address in the IP Name:[ Address:[0.0.0.0] field, highlight GO, and press enter.
Page 262: Dvmrp Routing Table
24-port NWay Ethernet Switch User’s Guide Figure 6-92. View the IP Multicast Forwarding Table To Jump to a particular multicast group, enter either the IP address in the Jump to Multicast Group:[0.0.0.0] field, enter the source IP address in the Source IP:[0.0.0.0] field, or the source subnet mask in the Source Mask:[0.0.0.0] field, highlight GO, and press enter.
Page 263: Reboot
Source Mask:[0.0.0.0] field, highlight GO, and press enter. Reboot The DES-3326 has several reboot options. To reboot the switch from the console: Highlight Reboot from the Main Menu and press enter. Configuring the Switch Using the Console Interface...
Page 264 24-port NWay Ethernet Switch User’s Guide Figure 6-95. System Reboot Menu The reboot options are as follows: Reboot simply restarts the switch. Any configuration settings not saved using Save Changes from the Main Menu will be lost. switch’ s configuration will restored to the last configuration saved in NV-RAM.
Page 265 24-port NWay Ethernet Switch User’s Guide configuration, except the user configured IP address will be retained. All other configuration data will be lost. A confirmation screen will appear: Figure 6-96. System Reboot Confirmation To reboot the switch, in the mode entered above, highlight Yes and press enter.
Page 266: Web-Based Network Management
24-port NWay Ethernet Switch User’s Guide ASED ETWORK ANAGEMENT Introduction The DES-3226 offers an embedded Web-based (HTML) interface allowing users to manage the switch from anywhere on the network through a standard browser such as Netscape Navigator/Communicator or Microsoft Internet Explorer. The Web browser acts as a universal access tool and can communicate directly with the Switch using the HTTP protocol.
Page 267: Before You Start
Layer 2 Only mode. Before You Start The DES-3326 Layer 3 Switch supports a wide array of functions and gives great flexibility and increased network performance by eliminating the routing bottleneck between the WAN or Internet and the Intranet.
Page 268: Vlan Layout
VLAN Layout VLANs on the DES-3326 have rather more functions than on a traditional layer 2 switch, and must therefore be laid-out and configured with a bit more care. Layer 3 VLANs (VLANs with an...
Page 269: Assigning Ip Network Addresses And Subnet Masks To Vlans
Layer 3 VLANs must be configured on the switch before they can be assigned IP subnets. Further, the static VLAN configuration is specified on a per port basis. On the DES-3326, a VLAN can consist of end-nodes – just like a traditional layer 2 switch, but a VLAN can also consist of one or more layer 2 switches –...
Page 270: Defining Static Routes
Routes between the IP interfaces and a default gateway or other router with a WAN connection should be determined beforehand and entered into the static/default routing table on the DES-3326. Getting Started The first step in getting started in using web-based management for your Switch is to secure a browser.
Page 271: Configuring The Switch
24-port NWay Ethernet Switch User’s Guide Note: The Factory default IP address for the switch is 10.90.90.90. In the page that opens, click on the Login to DES-3326 Manager button: Figure 7-1. Login Button This opens the main page in the management module.
Page 272 24-port NWay Ethernet Switch User’s Guide Figure 7-3. User Accounts Control Table - Edit 1. Enter the new user name, assign an initial password, and then confirm the new password. Determine whether the new user should have Root, User+, or User privileges. 2.
Page 273: Saving Changes
You can logon again and are now ready to continue configuring the Switch. Saving Changes The DES-3326 has two levels of memory; normal RAM and non- volatile or NV-RAM. Configuration changes are made effective Web-Based Network Management...
Page 274: Factory Reset
24-port NWay Ethernet Switch User’s Guide by highlighting Apply and pressing Enter. When this is done, the settings will be immediately applied to the switching software in RAM, and will immediately take effect. Some settings, though, require you to restart the switch before they will take effect.
Page 275: Using Web-Based Management
24-port NWay Ethernet Switch User’s Guide returns all configuration options to their default values and restores the switch’ s configuration to the factory settings. All user-entered configuration information will be lost. Figure 7-6. Factory Reset Screen Click Yes if you want the switch to retain its current IP address. Click No to reset the switch’...
Page 276 24-port NWay Ethernet Switch User’s Guide following at a minimum must be configured or known for the switch to be managed: IP Address Administrator password In addition, several other parameters may need to be configured or known to properly communicate with the switch or allow full management capability.
Page 277 24-port NWay Ethernet Switch User’s Guide 3. Select Subnet Mask from the menu and enter the appropriate mask. 4. Click APPLY to make the change effective. Use Save Changes to enter the IP address into NV- RAM. Web-Based Network Management...
Page 278 24-port NWay Ethernet Switch User’s Guide Setting a Default Gateway The default gateway parameter defines the IP address of a router or other network device to which IP packets are to be sent if destined for a subnet outside of that in which the switch is operating.
Page 279 24-port NWay Ethernet Switch User’s Guide 3. Move to the Status field, and use the Space bar to select ENABLED. 4. Click APPLY to make the changes effective. Save Changes to enter the configuration into NV- RAM. Saving Configuration Changes Clicking the APPLY button makes any configuration change active, but only for the current session.
Page 280 24-port NWay Ethernet Switch User’s Guide 1. Start a Java-enabled Web browser from any machine with network access to the switch. (Preferred browsers include Internet Explorer 5.0 or above, or Netscape Navigator 4.0 or above.) 2. Enter the IP address for the switch you want to manage in the URL field of the browser.
Page 281 24-port NWay Ethernet Switch User’s Guide Web-based Manager’s User Interface user interface provides access various switch configuration and management screens, allows you to view performance statistics, and permits you to graphically monitor system status. Areas of the User Interface Figure 2-1 shows the user interface. The user interface is divided into 3 distinct areas as described in Table 2-1.
Page 282 24-port NWay Ethernet Switch User’s Guide Presents a graphical near real-time image of the front panel of the switch. This area displays the switch’ s ports and expansion modules, showing port activity, duplex mode, or flow control, depending on the specified mode. Various areas of the graphic can be selected for performing management functions, including the ports, expansion modules, management module,...
Page 283 24-port NWay Ethernet Switch User’s Guide maximum message age, and forward delay; as well as port priority and path cost. Priority Configures default port priorities and queue assignments. Management VID Allows you to restrict management access to the switch to one VLAN. VLAN Configures VLAN group members, automatic registration with GVRP, and...
Page 284: Configuring And Monitoring The Switch
24-port NWay Ethernet Switch User’s Guide CONFIGURING AND MONITORING THE SWITCH This section, arranged by topic, describes how to perform common monitoring and configuration tasks on the switch using the web-based manager. Screen Hierarchy The contents of this chapter are arranged following the structure shown below.
Page 285 24-port NWay Ethernet Switch User’s Guide Serial Port Settings Port No Sub-menus Spanning Tree STP Switch Settings Configure STP Groups STP Port Settings Forwarding MAC Address Forwarding Static/Default Routes Static ARP Filtering MAC Filtering IP Address Filtering Priority No Sub-menus Mirroring Target Port Selection Port Mirroring Settings...
Page 286 24-port NWay Ethernet Switch User’s Guide Statistics Port Packet Analysis Port Error Port Utilization Address Table Browse MAC Address Sequentially Browse IP Address Sequentially Routing Table ARP Table Applications Switch History Browse Router Port Browse IP Address Sequentially Routing Table ARP Table Utilities Update Firmware from Server...
Page 287 24-port NWay Ethernet Switch User’s Guide System Information Use the System Information screen to display descriptive information about the switch, or for quick system identification as shown in the following figure and table. Figure 7-10. Switch Information Screen Parameter Description System Name Name assigned to the switch system.
Page 288 24-port NWay Ethernet Switch User’s Guide Redundant Power Status Redundant power status for the switch. IP Address IP address of the agent you are managing. The agent module supports SNMP over UDP/IP transport protocol. In this environment, all systems on the Internet, such as network interconnection devices and any PC accessing the agent module (or...
Page 289 24-port NWay Ethernet Switch User’s Guide Web-Based Network Management...
Page 290: Current Settings
24-port NWay Ethernet Switch User’s Guide IP Configuration Use the IP Configuration screen to set the boot-up option, or to manually configure the IP address for the agent module. The screen shown below is described below in the following table. Figure 7-11.
Page 291 24-port NWay Ethernet Switch User’s Guide IP Address 10.90.90.90 Displays the IP address currently assigned to the switch. Subnet Mask 255.0.0.0 Displays the Subnet Mask currently assigned to the switch. Default Gateway 0.0.0.0 Displays the Default Gateway currently assigned to the switch. Note that the gateway must be defined if the management station is...
Page 292 24-port NWay Ethernet Switch User’s Guide Default Gateway Allows the input of the IP address of a Default Gateway used to pass trap messages from the switch’ s agent to the management station. Note that the gateway must be defined if the management station is located on a different IP segment than the switch.
Page 293 24-port NWay Ethernet Switch User’s Guide Management Use the Management Menus to configure the IP addresses of up to 3 Management stations, to configure SNMP Community strings, the IP addresses of Trap receivers, and to configure the Serial Port settings. Management Station IP Settings You can specify the IP addresses of up to 3 management stations that will be allowed to access the management agent of the...
Page 294 24-port NWay Ethernet Switch User’s Guide SNMP Configuration (Community Strings) Use the Management Configuration screen to display and modify parameters for the Simple Network Management Protocol (SNMP). The switch includes an on-board SNMP agent which monitors the status of its hardware, as well as the traffic passing through its ports.
Page 295 24-port NWay Ethernet Switch User’s Guide Parameter Description Community String A string of up to 20 characters used for authentication of users wanting access to the switch’ s SNMP agent. Access Right Specifies the level of access for an authorized user. The levels can be Read- Only, or Read-Write.
Page 296 24-port NWay Ethernet Switch User’s Guide Parameter Description Trap Receiving Station The IP address of the management station that will receive traps generated by the switch. Community String A string of up to 20 characters used for authentication of users wanting to receive traps from the switch’...
Page 297: Console Settings
24-port NWay Ethernet Switch User’s Guide Figure 7-14. Serial Port Settings Console Settings Parameter Description Baud Rate Specifies the rate data will be exchanged over the serial link. The default value is 9600 baud. Data Bits Specifies the number of bits that will carry data over the serial link.
Page 298 24-port NWay Ethernet Switch User’s Guide Auto-Logout Specifies length of time a management session can be idle. When this time has expired, the switch’ s management agent will disconnect the user. The default value is 10 minutes. Slip Settings Parameter Description Baud Rate Specifies the rate data will be exchanged...
Page 299 24-port NWay Ethernet Switch User’s Guide Layer 2 Only with IEEE 802.1Q VLAN support: the switching process is based upon the source and destination MAC addresses only. 802.1Q VLANs are supported and the switch is considered as a VLAN-tag aware device. IP Routing with IEEE 802.1Q VLAN support: the switching process is based upon the IP source and destination addresses, if present.
Page 300 24-port NWay Ethernet Switch User’s Guide Figure 7-15. Switch Operation Mode Screen Parameter Description Current Mode Displays the switch’ s current operating mode. Restart Mode Allows the selection of the operating mode of the switch after a switch restart. The options are Layer 2, Support IEEE 802.1Q VLANs, and IP Routing, Support IEEE 802.1Q VLANs.
Page 301 24-port NWay Ethernet Switch User’s Guide Figure 7-16. Layer 2 Switch Settings Screen Parameter Description MAC Address Aging Time Specifies the length of time a learned MAC Address will remain forwarding table without being accessed (that is, how long a learned MAC Address allowed remain idle).
Page 302 – that will trigger switch’ s reaction Broadcast/Multicast storm. GVRP firmware release 1.00-B14, GVRP supported on the DES-3326. Support GVRP planned later Group firmware release. VLAN Registration Protocol is a protocol that allows members dynamically join VLANs.
Page 303 24-port NWay Ethernet Switch User’s Guide Support GVRP planned later Group firmware release. Multicast Registration Protocol is a protocol that allows members dynamically join Multicast groups. IGMP Snooping Allows IGMP Snooping to be Enabled or Disabled. This enables or disables IGMP snooping for the switch.
Page 304 24-port NWay Ethernet Switch User’s Guide Allows RIP to be Enabled or Disabled. This enables or disables, globally, the Routing Information Protocol (RIP). DVMRP This enables or disables, globally, Distance-Vector Multicast Routing Protocol (DVMRP). DVMRP Incld. Report. (This version of DVMRP allows reports from Unknown neighbor routers).
Page 305 24-port NWay Ethernet Switch User’s Guide Figure 7-18. Setup IP Interface Screen Parameter Description System Displays the name of the IP interface corresponding to the IP address and subnet mask below. IP Address The IP address of the IP interface (sometimes referred to as a network address).
Page 306 24-port NWay Ethernet Switch User’s Guide Figure 7-19. Setup IP Interface - Edit Screen Parameter Description Subnet Name A name given to identify this IP interface. IP Address The IP address of this IP interface (sometimes referred to as a network address).
Page 307 24-port NWay Ethernet Switch User’s Guide Edit IP Interface The same menu is used to edit an existing IP interface as is used to add a new IP interface to the switch. Figure 7-20. Setup IP Interface – Edit Screen Parameter Description Subnet Name...
Page 308 24-port NWay Ethernet Switch User’s Guide Port Member Displays the ports that are members of this IP interface and its corresponding VLAN. Setup RIP The Routing Information Protocol (RIP) is a distance-vector protocol that uses the hop count as its criteria for making routing decisions.
Page 309 24-port NWay Ethernet Switch User’s Guide V2 Only, V1 and V2, or Disabled. This entry specifies which version of the RIP protocol will be used to receive RIP packets. The Disabled entry prevents the reception of RIP packets. Auth. Displays whether RIP is configured to use an authorization string.
Page 310 24-port NWay Ethernet Switch User’s Guide V2 Only, or Disabled. This entry specifies which version of the RIP protocol will be used to transmit RIP packets. Disabled prevents the transmission of RIP packets. Rx Mode Determines how received RIP packets will be interpreted –...
Page 311 24-port NWay Ethernet Switch User’s Guide Figure 7-23. Configure Port Screen Parameter Description Port Type A read-only field that indicates the type of port currently selected. Status A read-only field that indicates the current status of the selected port. State Allows the currently selected port to be Enabled or Disabled.
Page 312 For a more detailed description of how to use this protocol, refer to “Spanning Tree Concepts”, in the DES-3326 Management Guide. The following figures and tables describe the configuration of the Spanning Tree Protocol (STP) on the switch.
Page 313 24-port NWay Ethernet Switch User’s Guide without receiving a configuration message before attempting to reconfigure. All device ports (except for designated ports) should receive configuration messages at regular intervals. Any port that ages out STP information (provided in the last configuration message) becomes the designated port for the attached LAN.
Page 314 24-port NWay Ethernet Switch User’s Guide required because every device must receive information about topology changes before it starts to forward packets. In addition, each port needs time to listen for conflicting information that would make it return to a blocking state;...
Page 315 Spanning Tree Groups Figure 7-25. Spanning Tree Groups Screen The DES-3326 switch allows you to configure Spanning Tree Groups that consist of a group of ports that will be handled as though they were a single spanning tree device. The following figures and tables describe how to configure a spanning tree group.
Page 316 24-port NWay Ethernet Switch User’s Guide Figure 7-26. STP Group Settings – Add Parameter Description Group Name A 12 character name used to identify the STP group. Port Number Check boxes used to select a port to be a member of the STP group. Click on the box corresponding to the port you want to add to the STP group.
Page 317 24-port NWay Ethernet Switch User’s Guide STP group. Click on the Exit icon to return to the Spanning Tree Groups menu. Figure 7-27. STP Group Settings – Edit Screen Parameter Description Group Name The group name of the selected STP group. Designated Root Bridge The current root bridge for the STP group.
Page 318 24-port NWay Ethernet Switch User’s Guide designated port for the STP group to the root bridge. Last Topology Change The time (in seconds) since the last change in the root bridge or designated port for the STP group. Topology Change Count The number of topology changes, for the currently selected STP group, since the switch was last...
Page 319 24-port NWay Ethernet Switch User’s Guide Parameter Description Port Cost A port cost can be set between 1 and 65535. The lower the cost, the greater the probability the port will be chosen as the designated port (chosen to forward packets).
Page 320 24-port NWay Ethernet Switch User’s Guide Figure 7-29. Setup Static Unicast MAC Forwarding Screen Add an Entry Parameter Description MAC Address The MAC address to which packets will be statically forwarded. The VLAN ID number of the VLAN to which the above MAC address belongs. PortMap Allows the designation of the port on which the above MAC address resides.
Page 321 24-port NWay Ethernet Switch User’s Guide Displays the VLAN ID number of the VLAN to which the above MAC address belongs. PortMap Displays the port on which the above MAC address resides. Static / Default Routes The following figures and tables describe the entry of a Static / Default Routes into the IP routing table.
Page 322 24-port NWay Ethernet Switch User’s Guide A link to Static/Default Routes – Add menu. Delete Click on this icon to delete the entry. Static / Default Routes – Add The following figure and table describe the entry of a Static / Default Route into the switch’...
Page 323 24-port NWay Ethernet Switch User’s Guide Metric The Routing Information Protocol (RIP) metric. This is the number of hops between the IP address and the Gateway. This is a number between 1 and 15. Static ARP The following figure and table describe the entry of a static Address Resolution Protocol (ARP) into the switch’...
Page 324 24-port NWay Ethernet Switch User’s Guide A link to the Static ARP – Add menu. Delete Click on the icon to delete the static ARP entry. Static ARP – Add The following figure and table describe adding an entry to the switch’...
Page 325 24-port NWay Ethernet Switch User’s Guide Filtering The following figures and tables describe how to add a MAC or IP address to the MAC or IP filtering tables on the switch. Figure 7-34. Setup MAC Address Filter Screen Add and Entry Parameter Description MAC Address...
Page 326 24-port NWay Ethernet Switch User’s Guide address as their source will be dropped. When Either is chosen, all packets to or from the above MAC address will be dropped by the switch. Entries Parameter Description MAC Address Displays the MAC address that is to be filtered on the switch.
Page 327 24-port NWay Ethernet Switch User’s Guide Figure 7-35. Filter Address Setup Screen Filter Address Table Parameter Description Address The IP address that is to be filtered on the switch. State Allows the selection of the state of the above IP address under which packets will be dropped by the switch.
Page 328 24-port NWay Ethernet Switch User’s Guide The Filter Address Table Parameter Description Address Displays the IP address that is to be filtered on the switch. State Displays the state of the above IP address under which packets will be dropped by the switch.
Page 329 24-port NWay Ethernet Switch User’s Guide MAC Address The MAC address for which priority on the switch is to be established. The VLAN ID of the VLAN on which the MAC address above resides. Level The priority of the above MAC address. The options are;...
Page 330 24-port NWay Ethernet Switch User’s Guide Entries Parameter Description MAC Address Displays the MAC address for which priority on the switch is to be established. Displays the VLAN ID of the VLAN on which the MAC address above resides. Level Displays the priority of the above MAC address.
Page 331 24-port NWay Ethernet Switch User’s Guide Target Port Selection The following figure and table describe the selection of a target port. A target port in a port mirroring pair is the port that will receive packets that are duplicate at the mirror port. Figure 7-37.
Page 332 24-port NWay Ethernet Switch User’s Guide Figure 7-38. Setup Mirror Port Configuration Screen Add and Entry Parameter Description Source Port The port that will be mirrored. All packets entering and leaving the source port can be duplicated in the mirror port. Direction Allows the specification of which packets will be mirrored based upon whether the...
Page 333 24-port NWay Ethernet Switch User’s Guide Entries Parameter Description Source Port Displays the port that will be mirrored. Direction Allows the specification of which packets will be mirrored based upon whether the packets are flowing into or out of a port, or all packets (both directions).
Page 334 24-port NWay Ethernet Switch User’s Guide MAC Address The MAC address of the static source of multicast packets. The VLAN ID of the VLAN the above MAC address belongs to. PortMap / State Allows the selection of ports that will be members of the static multicast group and ports that are either forbidden from joining dynamically, or that can join the...
Page 335 24-port NWay Ethernet Switch User’s Guide Figure 7-40. Multicast Interface Configuration Screen Parameter Description Interface Name The name of the IP interface (previously defined) on the switch for which a multicast interface is to be configured. IP Address The IP address (sometimes referred to as a network address) that corresponds to the interface name above.
Page 336 24-port NWay Ethernet Switch User’s Guide The options are; DVMRP – Distance Vector Multicast Routing Protocol, PIMDM – Protocol Independent Multicasting Dense Mode, and INACT – the interface is inactive. For example, if DVMRP is chosen, then this routing protocol will be used to forward multicast packets for the above IP interface.
Page 337 24-port NWay Ethernet Switch User’s Guide Interface Name The name of the IP interface (previously defined) on the switch for which a multicast interface is to be configured. The IP address corresponding to the IP interface name above. Version The version number of the IGMP to be used for the above IP interface.
Page 338 24-port NWay Ethernet Switch User’s Guide Figure 7-42. DVMRP Interface Configuration Screen Parameter Description Interface Name The name of the IP interface (previously defined) on the switch for which a multicast interface is to be configured. IP Address The IP address (sometimes referred to as a network address) corresponding to the interface name above.
Page 339 24-port NWay Ethernet Switch User’s Guide The default value is 35 seconds. Route Cost Allows the assignment of a DVMRP route cost to the above IP interface. A DVMRP route cost is a relative number that represents the real cost of using this route in the construction of a multicast delivery tree.
Page 340 24-port NWay Ethernet Switch User’s Guide Parameter Description Interface Name The name of the IP interface (previously defined) on the switch for which a multicast interface is to be configured. IP Address The IP address (sometimes referred to as a network address) corresponding to the interface name above.
Page 341 24-port NWay Ethernet Switch User’s Guide and 65535 seconds. The default is 60 seconds. State Allows PIMDM to be Disabled or Enabled for the above IP interface. The default is Disabled. Static Router Port Settings The following figures and table describe how to set up a static router port on the switch.
Page 342 24-port NWay Ethernet Switch User’s Guide Add a Static Router Port The following figure and table describe how to add a static router port on the switch. Click on the Exit icon to return to the Static Router Port Settings menu. Figure 7-45.
Page 343 24-port NWay Ethernet Switch User’s Guide Figure 7-46. 802.1Q Static VLANs Screen Parameter Description The VLAN ID of the VLAN on which the static router port resides. VLAN Name The name of the VLAN for which ports are to be configured. Add a Static 802.1Q VLAN The following figure and table describe how to add an 802.1Q VLAN on the switch.
Page 344 24-port NWay Ethernet Switch User’s Guide Parameter Description The VLAN ID of the VLAN that is being created. VLAN Name The name of the VLAN that is being created. Port Corresponds to the ports that will be members of the VLAN. Specifies the port as either 802.1Q tagging or 802.1Q untagging.
Page 345 24-port NWay Ethernet Switch User’s Guide Edit 802.1Q VLANs The following figure and table describe how to edit an existing 802.1Q VLAN entry on the switch. Figure 7-48. 802.1Q Static VLANs Entry Settings – Edit Screen Parameter Description VLAN ID (VID) The VLAN ID of the VLAN to be edited.
Page 346 24-port NWay Ethernet Switch User’s Guide Egress Specifies the port as being a static member of the VLAN. Egress Member Ports are ports that will be transmitting traffic for the VLAN. Forbidden Specifies the port as not being a static member of the VLAN, and as being forbidden from joining the VLAN dynamically.
Page 347 24-port NWay Ethernet Switch User’s Guide Parameter Description Port VLAN ID The PVID is used by the port to tag outgoing, untagged packets, and to make filtering decisions about incoming packets. If the port is specified as tagging, and an untagged packet if forwarded to the port for transmission, the port will add an 802.1Q tag using the PVID to write the...
Page 348 24-port NWay Ethernet Switch User’s Guide Figure 7-50. Port Ingress Filter Screen Parameter Description Port The number of the port for which ingress filtering is to be Enabled or Disabled. Ingress Filter Specifies the port to check the VID of incoming packets against its VID or PVID.
Page 349 24-port NWay Ethernet Switch User’s Guide Port GVRP Settings As of firmware release 1.00-B14, Port GVRP is not supported on the DES-3326. Support for Port GVRP is planned for a later firmware release The following figure and table describe how to configure the Port Group VLAN Registration Protocol (GVRP) on the switch.
Page 350 24-port NWay Ethernet Switch User’s Guide Port GMRP Settings As of firmware release 1.00-B14, Port GMRP is not supported on the DES-3326. Support for Port GVRP is planned for a later firmware release The following figure and table describe how to configure the Port Group Multicast Registration Protocol (GMRP) on the switch.
Page 351 You can configure up to 6 trunk connections (combining 2 to 8 ports into a fat pipe) between any two DES-3326 or other Layer 2 switches. However, before making any physical connections between devices, use the Trunk Configuration menu to specify the trunk on the devices at both ends.
Page 352 24-port NWay Ethernet Switch User’s Guide Enable the trunk prior to connecting any cable between the switches to avoid creating a data loop. Disconnect all trunk port cables or disable the trunk ports before removing a port trunk to avoid creating a data loop.
Page 353 24-port NWay Ethernet Switch User’s Guide Number of Members The number of contiguous ports in the selected trunk group. State Allows the trunk group to be Enabled or Disabled. Anchor The same as the master port. The RJ-45 ports used for each trunk must all be on the same internal switch chip.
Page 354 24-port NWay Ethernet Switch User’s Guide When the switch receives packets destined for a BOOTP or DHCP server, it forwards them to specific servers as defined in the following configuration. The switch also forwards packets from the BOOTP or DHCP servers to the appropriate subnets. The first task is to set some parameters for the relay agent to decide whether or not to forward a given BOOTP/DCHP packet.
Page 355 24-port NWay Ethernet Switch User’s Guide BOOTP/DHCP Relay Time Thresh. Sets the minimum time (in seconds) that the switch will wait before forwarding a BOOTREQUEST packet. If the value in the seconds field of the packet is less than the relay time threshold, the packet will be dropped.
Page 356 24-port NWay Ethernet Switch User’s Guide Figure 7-55. BOOTP Relay Setup Screen Parameter Description Subnet Name The subnet name (IP interface name) of the network that the BOOTP server is located on. Relay Server The IP address of the BOOTP relay server. Multiple servers may be entered for a given subnet name (IP interface name).
Page 357 24-port NWay Ethernet Switch User’s Guide DNS Relay DNS relay enables end stations to use a DNS server to resolve domain names into IP addresses, even if the server and the end station are not on the local IP interface. If the DNS server and end station are on the same IP interface, no relay is necessary.
Page 358 24-port NWay Ethernet Switch User’s Guide Parameter Description DNS Relay State Allows the DNS relay function to be Enabled or Disabled on the switch. Primary Name Server The IP address of the primary DNS server. Secondary Name Server The IP address of a secondary DNS server.
Page 359 24-port NWay Ethernet Switch User’s Guide Figure 7-57. DNS Static Table Configuration Screen Parameter Description Domain Name The subnet name (IP interface name) of the network that the BOOTP server is located on. IP Address The IP address of the BOOTP relay server.
Page 360: Update Interval
24-port NWay Ethernet Switch User’s Guide Statistics WebView allows various statistics about the switch’ s performance to be viewed. Port Packet Analysis Figure 7-58. Port Packet Analysis Screen Parameter Description Update Interval The interval (in seconds) that the table will be updated. The default is Suspend. Frame Size/Type The size in octets (bytes) of frames transferred through the switch.
Page 361 24-port NWay Ethernet Switch User’s Guide Frames/sec The number of frames per second transferred through the switch of the corresponding size indicated. Packet Type Rx – received Tx - transmitted Port Error Statistics The following figure and table describe the port error statistics compiled by the switch’...
Page 362 24-port NWay Ethernet Switch User’s Guide framing bits, but including FCS octets) and were otherwise well formed. Fragments The total number of frames received that were less that 64 octets in length (excluding framing bits, but including FCS octets) and had either an FCS or an alignment error.
Page 363 24-port NWay Ethernet Switch User’s Guide Ex. Coll. Excessive Collisions. The number of frames for which transmission failed due to excessive collisions. Single Coll.* Single Collision Frames. The number of successfully transmitted frames for which transmission is inhibited by more than one collision.
Page 364: Update Interval
24-port NWay Ethernet Switch User’s Guide Figure 7-59. Port Utilization Screen Parameter Description Update Interval The interval (in seconds) that the chart is updated. The default is Suspend. Web-Based Network Management...
Page 365: Address Table
24-port NWay Ethernet Switch User’s Guide Address Table The following figures and tables describe how to browse the switch’ s address tables. Browse MAC Address Table WebView allows the switch’ s MAC address table (sometimes referred to as a forwarding table) to be viewed. Web-Based Network Management...
Page 366 24-port NWay Ethernet Switch User’s Guide Figure 7-60. Browse MAC Address Table Parameter Description The VLAN ID of the VLAN the port is a member of. MAC Address The MAC address entered into the address table. Port The port that the MAC address above corresponds to.
Page 367 24-port NWay Ethernet Switch User’s Guide Figure 7-61. IP Address Table Parameter Description IP Name The name of the IP Interface corresponding to the IP address below. IP Address The IP address corresponding to the IP interface name above. Port# The port the IP interface is attached to.
Page 368 24-port NWay Ethernet Switch User’s Guide Figure 7-62. Browse Routing Table Parameter Description Destination Address IP address of a learned or statically entered destionation. Mask Displays the subnet mask corresponding to the above destination IP address. Gateway Displays the default or next hop gateway to reach the destination.
Page 369 24-port NWay Ethernet Switch User’s Guide Protocol Displays the routing protocol in use by the link to the destination. Browse the ARP Table WebView allows the Address Resolution Protocol (ARP) table compiled by the switch to be viewed. The ARP table allows the switch to relate often used IP addresses to MAC addresses quickly, and without having to make ARP requests.
Page 370 24-port NWay Ethernet Switch User’s Guide Start Interface Name Allows the specification of an IP interface name to start the display of the ARP table. If the specified IP interface name is present in the ARP table, then it will be the first entry of the displayed table.
Page 371 24-port NWay Ethernet Switch User’s Guide Applications The following figures and tables describe the applications available when using the web-based manager. Switch History The web-based manager allows the switch’ s history log, as compiled by the switch’ s management agent, to be viewed. Figure 7-64.
Page 372 24-port NWay Ethernet Switch User’s Guide Parameter Description Sequence A counter incremented whenever an entry to the switch’ s history log is made. The table displays the last entry (highest sequence number) first. Time Displays the time in days, hours, and minutes since the switch was last restarted the history log entry was made.
Page 373 24-port NWay Ethernet Switch User’s Guide packets are detected on a port, that port is dynamically assigned as router port. Figure 7-65. Browse Router Port Parameter Description Start VID Allows a VID to be specified to search the router port table with. Jump Click the Jump button to search the router port table using the...
Page 374 24-port NWay Ethernet Switch User’s Guide Figure 7-66. IGMP Snooping Table Parameter Description VLAN ID of the VLAN for which the IGMP Snooping table is to be displayed. View Click on the View button to display the IGMP Snooping Table for the current VID. Multicast Group The IP address of a multicast group learned by IGMP snooping.
Page 375 24-port NWay Ethernet Switch User’s Guide Browse IP Multicast Forwarding Table The switch allows WebView to browse its IP multicast forwarding table for static and dynamic (learned) entries. The table can also be searched using a combination of a multicast group IP address, and a multicast source IP address –...
Page 376 24-port NWay Ethernet Switch User’s Guide Mask The subnet mask of a multicast source used in combination with the source IP address and the corresponding multicast group IP address to search the IP multicast forwarding table for a specific entry. Jump Click on the Jump button to search the IP multicast forwarding table for the above...
Page 377 24-port NWay Ethernet Switch User’s Guide Figure 7-68. IGMP Group Table Parameter Description Interface Name Allows the IGMP table to be searched using a combination of an IP interface name and a Multicast group IP address. Start Multicast Group Allows the IGMP table to be searched using a combination of an IP interface name and a Multicast group IP address.
Page 378 24-port NWay Ethernet Switch User’s Guide Parameter Description Source Address Allows the DVMRP routing table to be searched for the entered IP address – subnet mask combination. Source Mask Allows the DVMRP routing table to be searched for the entered IP address – subnet mask combination.
Page 379 24-port NWay Ethernet Switch User’s Guide TFTP server. In addition, the switch’ s history log can be uploaded from the switch to a TFTP server. The following figures and tables describe how to use the utilities available in WebView. Update Firmware Note: The TFTP server must be on the same IP subnet as the switch.
Page 380 24-port NWay Ethernet Switch User’s Guide Figure 7-71. Use Configuration File on Server Screen Parameter Description Server IP Address The IP address of the TFTP server. File Name The full file name (including path) of the configuration file on the TFTP server. Save Switch Settings to a TFTP Server The switch’...
Page 381 24-port NWay Ethernet Switch User’s Guide File Name The full file name (including path) of the settings file on the TFTP server. Save Switch History to TFTP Server The switch’ s management agent can upload its history log file to a TFTP server.
Page 382 24-port NWay Ethernet Switch User’s Guide Figure 7-74. Restart System Screen Factory Reset The following menu is used to restart the switch using only the configuration that was supplied by the factory. A factory reset returns all configuration options to their default values and restores the switch’...
Page 383 24-port NWay Ethernet Switch User’s Guide Click Yes if you want the switch to retain its current IP address. Click No to reset the switch’ s IP address to the factory default, 10.90.90.90. Click the Reset to Factory Default button to restart the switch. Web-Based Network Management...
Page 384: Technical Specifications
24-port NWay Ethernet Switch User’s Guide ECHNICAL PECIFICATIONS General Standards: IEEE 802.3 10BASE-T Ethernet IEEE 802.3u 100BASE-TX Fast Ethernet IEEE 802.3z 1000BASE-SX Gigabit Ethernet IEEE 802.1 P/Q VLAN IEEE 802.3x Full-duplex Flow Control ANSI/IEEE 802.3 Nway auto-negotiation Protocols: CSMA/CD Data Transfer Half-duplex Full-duplex Rates:...
Page 385 24-port NWay Ethernet Switch User’s Guide General Network Cables: 10BASE-T: 2-pair UTP Cat. 3,4,5 (100 m) EIA/TIA- 568 100-ohm STP (100 m) 100BASE-TX: 2-pair UTP Cat. 5 (100 m) EIA/TIA-568 100-ohm STP (100 m) Fiber Optic: IEC 793-2:1992 Type A1a - 50/125um multimode Type A1b - 62.5/125um multimode Both types use MTRJ or SC optical connector Number of Ports:...
Page 386 24-port NWay Ethernet Switch User’s Guide Physical and Environmental EMI: FCC Class A, CE Class A, VCCI Class A, BSMI Class A, C-Tick Class A FCC Part 15/IECES-003 (Canada), VCCI Class A ITE, EN55022/EN50082-1 or EN%%o24, C-Tick (AS/NZS3548, BSMI (CNS 13438) Safety: UL, CSA, CE Mark, TUV/GS UL 1950 &...
Page 387: Pin Specification
24-port NWay Ethernet Switch User’s Guide RJ-45 P PECIFICATION When connecting the DES3226S Switch to another switch, a bridge or a hub, a modified crossover cable is necessary. Please review these products for matching cable pin assignment. The following diagram and table show the standard RJ-45 receptacle/connector and their pin assignments for the switch-to- network adapter card connection, and the straight/ crossover cable for the Switch-to-switch/hub/bridge connection.
Page 388: Pin Assignment
24-port NWay Ethernet Switch User’s Guide RJ-45 Connector pin assignment Contact Media Direct Interface Signal Tx + (transmit) Tx - (transmit) Rx + (receive) Not used Not used Rx - (receive) Not used Not used Table B-1. The standard Category 3 cable, RJ-45 pin assignment The following shows straight cable and crossover cable connection: Figure B-2.
Page 389: Sample Configuration File
24-port NWay Ethernet Switch User’s Guide AMPLE ONFIGURATION This Appendix provides a sample configuration file that can be used with the Update Firmware and Configuration Files screen in the console program. The configuration file is a simple text file that you create. It has two functions: to point to the location of a file on a TFTP server, and to set the IP address, subnet mask and default gateway for the switch.
Page 390: Runtime Switching Software Default Settings
24-port NWay Ethernet Switch User’s Guide UNTIME WITCHING OFTWARE EFAULT ETTINGS Load Mode Ethernet Switch Operation Mode Layer 2 Configuration update Disable Firmware update Disable Configuration file name None Firmware file name None Out-of-band baud rate 9600 RS232 mode Console IP address 10.90.90.90 Subnet mask...
Page 391 24-port NWay Ethernet Switch User’s Guide Bridge priority 32768 Port STP cost 19 (Gigabit=4) Port STP priority Forwarding table aging time 300 secs Nway Enable Flow control Disable Broadcast storm rising threshold 128Kpps Community string “public”, “private” VLAN mode IEEE 802.1Q SNMP VLAN(802.1Q) Default port VID Ingress rule checking...
Page 392: Understanding And Troubleshooting The Spanning Tree Protocol
24-port NWay Ethernet Switch User’s Guide NDERSTANDING AND ROUBLESHOOTING THE PANNING ROTOCOL When the spanning-tree algorithm determines a port should be transitioned to the forwarding state, the following occurs: The port is put into the listening state where it receives BPDUs and passes them to the switch’...
Page 393: Blocking State
24-port NWay Ethernet Switch User’s Guide forwarding are enabled. At this point, packets are forwarded by the port. Blocking State A port in the blocking state does not forward packets. When the switch is booted, a BPDU is sent to each port in the switch putting these ports into the blocking state.
Page 394 24-port NWay Ethernet Switch User’s Guide Understanding and Troubleshooting the Spanning Tree Protocol...
Page 395: Listening State
24-port NWay Ethernet Switch User’s Guide Listening State The listening state is the first transition for a port from the blocking state. Listening is an opportunity for the switch to receive BPDUs that may tell the switch that the port should not continue to transition to the forwarding state, but should return to the blocking state (that is, a different port is a better choice).
Page 396 24-port NWay Ethernet Switch User’s Guide Understanding and Troubleshooting the Spanning Tree Protocol...
Page 397: Learning State
24-port NWay Ethernet Switch User’s Guide Learning State A port in the learning state prepares to participate in frame forwarding. The port enters the learning state from the listening state. A port in the learning state does the following: Discards frames received from the network segment to which it is attached.
Page 398 24-port NWay Ethernet Switch User’s Guide Understanding and Troubleshooting the Spanning Tree Protocol...
Page 399: Forwarding State
24-port NWay Ethernet Switch User’s Guide Forwarding State A port in the forwarding state forwards packets. The port enters the forwarding state from the learning state when the forward delay timer expires. A port in the forwarding state does the following: Forwards packets received from the network segment to which it is attached.
Page 400 24-port NWay Ethernet Switch User’s Guide Understanding and Troubleshooting the Spanning Tree Protocol...
Page 401: Disabled State
24-port NWay Ethernet Switch User’s Guide Disabled State A port in the disabled state does not participate in frame forwarding or STP. A port in the disabled state is virtually non- operational. A disabled port does the following: Discards packets received from the network segment to which it is attached.
Page 402 24-port NWay Ethernet Switch User’s Guide Understanding and Troubleshooting the Spanning Tree Protocol...
Page 403: Troubleshooting Stp
24-port NWay Ethernet Switch User’s Guide Troubleshooting STP Spanning Tree Protocol Failure A failure in the STA generally leads to a bridging loop. bridging loop in an STP environment comes from a port that should be in the blocking state, but is forwarding packets. In this example, B has been elected as the designated bridge and port 2 on C is in the blocking state.
Page 404: Full/Half Duplex Mismatch
24-port NWay Ethernet Switch User’s Guide transition its port 2 from the blocking state to the forwarding state. It should be noted: A port must continue to receive BPDUs advertising superior paths to remain in the blocking state. There are a number of circumstances in which the STA can fail – mostly related to the loss of a large number of BPDUs.
Page 405: Unidirectional Link
24-port NWay Ethernet Switch User’s Guide In the above example, port 1 on B is configured as a full-duplex port and port 1 on A is either configured as a half-duplex port, or left in auto-negotiation mode. Because port 1 on B is configured as a full-duplex port, it does not do the carrier sense when accessing the link.
Page 406 24-port NWay Ethernet Switch User’s Guide Any failure that allows a link to remain up while providing one- way communication is very dangerous for STP. In this example, port 2 on B can receive but not transmit packets. Port 2 on C should be in the blocking state, but since it can no longer receive BPDUs from port 2 on B, it will transition to the forwarding state.
Page 407: Packet Corruption
MAX AGE is set too low, this time is reduced. Resource Errors The DES-3326 Layer 3 switch performs its switching and routing functions primarily in hardware, using specialized ASICs. STP is implemented in software and is thus reliant upon the speed of the CPU and other factors to converge.
Page 408: Identifying A Data Loop
24-port NWay Ethernet Switch User’s Guide Identifying a Data Loop Broadcast storms have a very similar effect on the network to data loops, but broadcast storm controls in modern switches have (along with subnetting and other network practices) have been very effective in controlling broadcast storms. The best way to determine if a data loop exists is to capture traffic on a saturated link and check if similar packets are seen multiple times.
Page 409 24-port NWay Ethernet Switch User’s Guide Know which links are redundant. Organize the redundant links and tune the port cost parameter of STP to force those ports to be in the blocking state. For each VLAN, know which ports should be blocking in a stable network.
Page 410 24-port NWay Ethernet Switch User’s Guide This is a common network design. The switches C and D h ave redundant links to the backbone switches A and B using trunks. Trunks, by default, carry all the VLAN traffic from VLAN 1 and VLAN 2.
Page 411 24-port NWay Ethernet Switch User’s Guide and two blocked ports per VLAN. This increases the chance of a data loop. In this example, the VLAN definitions are extended to switches A and B. This gives only a single blocked port per VLAN and Understanding and Troubleshooting the Spanning Tree Protocol...
Page 412 A or B from the network. Impact of Layer 3 Switching. The IP routing operational mode of the DES-3326 Layer 3 switch can accomplish the following: Building a forwarding table, and exchanging information with its peers using routing protocols.
Page 413 24-port NWay Ethernet Switch User’s Guide Using layer 3 switches and IP routing eliminates the need for STP port blocking because the packets are routed by destination addresses. The link redundancy remains, and relying on the routing protocols gives a faster convergence than with STP. The drawback is that the introduction of layer 3 switching usually requires a new addressing scheme.
Page 414 24-port NWay Ethernet Switch User’s Guide Understanding and Troubleshooting the Spanning Tree Protocol...
Page 415: Brief Review Of Bitwise Logical Operations
24-port NWay Ethernet Switch User’s Guide RIEF EVIEW OF ITWISE OGICAL PERATIONS The logical operation compares 2 bits and if they are both “ 1”, then the result is otherwise, the result is “1”, “0”. The logical operation compares 2 bits and if either or both bits then the result is otherwise, the result is “1”,...
Page 416 24-port NWay Ethernet Switch User’s Guide The logical operation compares 2 bits and if XOR (exclusive OR) exactly one of them is a then the result is otherwise the “1”, “1”, result is “0”. The logical NOT operation simply changes the value of a single bit.
Page 417: Index
24-port NWay Ethernet Switch User’s Guide NDEX auto-negotiate ......22 1000BASE-SX Gigabit Module ..........38 Baud Rate.......177 100BASE-FX Fiber (MTRJ Type) BOOTP protocol ....173 Bootp Relay......295 Module ........38 100BASE-FX Fiber Module..37 BOOTP server......173 100BASE-TX Device ....44 BOOTP/DHCP Relay.....358 100BASE-TX Module....37 Bridge Forward Delay..65 10BASE-T Device ....43 Bridge Hello Time..
Page 418 Default Gateway .... 174, 287 Designated Root Bridge ..324 Browse the Routing Table..370 Diagnostic port ......22 ........387 Dimensions Changing your Password..165 D-Link proprietary MIB... 26 DNS Relay......295 Coll..........366 Drop Pkts ......366 Community Name .....49 Community Strings ...293 DVMRP........311 DVMRP Incld.
Page 419 24-port NWay Ethernet Switch User’s Guide Fragments ......365 Join/Prune Interval...345 Front Panel ........34 Full-duplex ........23 Last Topology Change ..324 Late Coll.......366 Layer 2 Switch Settings .293, gateway router......49 General User ....160, 282 Layer 3 IP Routing Protocol Gigabit Ethernet......28 GMRP ........310 Settings.....
Page 420 24-port NWay Ethernet Switch User’s Guide MIB-II (RFC 1213) ....26 Port Priority..65, 244, 326 MIBs ..........51 Port Trunking ....68, 355 Mirror ........292 Port Utilization....294 Mirror Port Configuration..337 Port Utilization Statistics ..367 Port VLAN ID (PVID) ..294, Mirroring.........336 module ........ 22, 35 Modules........36 port-based VLANs....
Page 421 24-port NWay Ethernet Switch User’s Guide Static/Default Routes..294 Segmenting Broadcast Domains Statistics...... 292, 363 ..........87 Serial Port Settings .293, 305 Status........326 Setting an IP Address....285 ......387 Storage Temperature Setting the Administrator Store and forward switching ..23 STP .........291 Password ......287 STP Port Settings..
Page 422: Trunk Ports
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Page 423: Registration Card
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Page 424 3. What network protocol(s) does your organization use ? ?XNS/IPX ?TCP/IP ?DECnet ?Others_____________________________ 4. What network operating system(s) does your organization use ? ?D-Link LANsmart ?Novell NetWare ?NetWare Lite ?SCO Unix/Xenix ?PC NFS ?3Com 3+Open ?Banyan Vines ?DECnet Pathwork ?Windows NT ?Windows NTAS ?Windows '95 ?Others__________________________________________ 5.

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