Page 1 DES-3326SR Layer 3 Switch User’s Guide First Edition (May 2003) 6513326SR015 Printed In Taiwan RECYCLABLE...
Page 2 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.
Page 3 18. Zum Netzanschluß dieses Gerätes ist eine geprüfte Leitung zu verwenden, Für einen Nennstrom bis 6A und einem Gerätegewicht grőßer 3kg ist eine Leitung nicht leichter als H05VV-F, 3G, 0.75mm2 einzusetzen.
Page 4 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 Any package returned to D-Link without an RMA number will be rejected and shipped back to Purchaser at Purchaser's expense, and D-Link reserves the right in such a case to levy a reasonable handling charge in addition mailing or shipping costs.
Page 6 D-Link's applicable product documentation, will be corrected.
Page 7 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.
Page 8 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 are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Page 9: Table Of Contents
Table of Contents Introduction ................1 Layer 3 Switching ..............1 Features ................2 Ports ..................2 Performance Features............2 Redundant Power Supply ...........2 Layer 2 Features ..............3 Layer 3 Switch Features.............5 Traffic Classification and Prioritization .......6 Management ..............6 Switch Stacking ..............7 Fast Ethernet Technology .............8 Gigabit Ethernet Technology..........8 Unpacking and Setup..............9 Unpacking ................9...
Page 10 Stacking Module with GBIC Port ........20 Switch LED Indicators ............23 Stacking Module LED Indicators......... 24 Connecting The Switch............25 Switch to End Node ............25 Switch to Hub or Switch ............. 26 Switch Stack Connections ..........27 10BASE-T Device ............. 28 100BASE-TX Device ............
Page 11 General Deployment Strategy ......... 144 VLAN Layout ..............145 Assigning IP Network Addresses and Subnet Masks to VLANs ................146 Defining Static Routes............ 146 Getting Started ..............146 Management..............147 Configuring the Switch ............. 148 User Accounts Management........... 148 Saving Changes ..............150 Factory Reset..............
Page 13: Introduction
ASIC – in hardware instead of software. The DES-3326SR can also replace key traditional routers for data centers and server farms, routing between these locations and the rest of the network, and providing 24 ports of Layer 2...
Page 14: Features
PC using a terminal emulation program. Performance Features Redundant Power Supply The DES-3326SR can be equipped with a redundant power supply - the D-Link DPS-200 - to ensure continuation of service if the main power unit fails. An integrated detection...
Page 15: Layer 2 Features
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide circuit continuously monitors the internal power supply. In the event of a power interruption, the redundant power supply is immediately triggered so that the DES-3326SR and connected devices can continue providing service.
Page 16 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide • 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 17: Layer 3 Switch Features
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide • 802.1p Priority support with 4 priority queues. • IGMP Snooping support. Layer 3 Switch Features • Wire speed IP forwarding. • Hardware-based Layer 3 IP switching. • IP packet forwarding rate of 6.6 Mpps.
Page 18: Traffic Classification And Prioritization
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide 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. • Spanning Tree Algorithm Protocol for creation of alternative backup paths and prevention of network loops.
Page 19: Switch Stacking
DNS Relay Agent. • Password enabled. Switch Stacking The DES-3326SR can be used as a standalone or stacked switch − using the optional stacking module. Up to 8 Switches may be stacked and managed as a unit with a single IP address.
Page 20: Fast Ethernet Technology
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Fast Ethernet Technology 100Mbps Fast Ethernet (or 100BASE-T) is a standard specified by the IEEE 802.3 LAN committee. It is an extension of the 10Mbps Ethernet standard with the ability to transmit and...
Page 21: Unpacking And Setup
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide NPACKING AND ETUP This chapter provides unpacking and setup information for the Switch. Unpacking Open the shipping carton of the Switch and carefully unpack its contents. The carton should contain the following items: •...
Page 22: Desktop Or Shelf Installation
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide • The surface must support at least 3 kg (6.6 lb) • 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 23: Rack Installation
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Rack Installation The DES-3326SR 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...
Page 24: Power On
Figure 2-3. Installing the switch on an equipment rack Power on The DES-3326SR 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.
Page 25: Power Failure
When the power supply is restored, plug the switch back in. Redundant Power Supply The DES-3326SR can be equipped with a redundant power supply - the D-Link DPS-200 - to ensure continuation of service in a failure of the main power unit. An integrated detection circuit continuously monitors the internal power supply.
Page 26: Identifying External Components
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide DENTIFYING XTERNAL OMPONENTS This chapter describes the front panel, rear panel, optional plug-in modules, and LED indicators of the DES-3326SR. Front Panel The front panel of the Switch consists of LED indicators, an RS-232 communication port, a slide-in module slot, and 24 (10/100 Mbps) Ethernet/Fast Ethernet ports.
Page 27: Rear Panel
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide • 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, or a 2-port GBIC-based Gigabit Ethernet module.
Page 28: Side Panels
Optional Plug-in Modules The DES-3326SR 24-port Fast Ethernet Layer 3 Switch is able to accommodate a range of optional plug-in modules in order to...
Page 29: 100Base-Fx Fiber Module (2Km/15Km)
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide increase functionality and performance. These modules must be purchased separately. 100BASE-FX Fiber Module (2Km/15Km) Figure 3-5. 100BASE-FX two-port module • Front-panel module. • Two 100BASE-FX (with SC type connector) Fiber ports. • Fully compliant with IEEE802.3u.
Page 30: 1000Base-T Module
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide 1000BASE-T Module Figure 3-6. 1000BASE-TX two-port module • Front-panel module. • Connects to 1000BASE-T devices. • Supports Category 5e UTP or STP cable connections of up to 100 meters. 1000BASE-SX Fiber Module Figure 3-7.
Page 31: 1000Base-Lx Fiber Module
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide • Allows connections using multi-mode fiber optic cable in the following configurations: 62.5µm 62.5µm 50µm 50µm Modal bandwidth (min. overfilled launch) Unit: MHz*km Operating distance Unit: meters Channel insertion loss 2.33 2.53 3.25...
Page 32: Gbic Two-Port Module
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide GBIC Two-Port Module Figure 3-9. GBIC two-port module • Front-panel module. • 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).
Page 33 • 7-segment LED display to indicate switch ID number within the switch stack The optional Stacking Module allows up to 8 DES-3326SR Switches to be interconnected via their individual Stacking Modules. This forms a 8-switch stack that can then be managed and configured as thought the entire stack were a single switch.
Page 34 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 3-11. Up to 8 Switches in a Switch Stack The stacking ports are marked IN and OUT. The IEEE 1394 compliant cable must be connected from an IN port on one switch to an OUT port on the next switch in the stack.
Page 35: Switch Led Indicators
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Switch LED Indicators The LED indicators of the Switch include Power, Console, and Link/Act. The following shows the LED indicators for the Switch along with an explanation of each indicator. Figure 3-12. The LED Indicators •...
Page 36: Stacking Module Led Indicators
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Stacking Module LED Indicators The switch’s current order in the switch stack is also displayed on the Stacking Module’s front panel − under the STACK NO. heading: Figure 3-13. Stacking Module LED Indicators The Link and Act LEDs have the same function as the corresponding LEDs for the switch’s Ethernet ports.
Page 37: Connecting The Switch
Category 5e UTP or STP cabling for 100 Mbps Fast Ethernet connections). The end node should be connected to any of the twenty-four ports (2x - 24x) of the DES-3326SR or to either of the two 100BASE-TX ports on the front-panel module that...
Page 38: Switch To Hub Or Switch
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 4-1. Switch connected to an End Node The LED indicators for the port the end node is connected to are lit according to the capabilities of the NIC. If LED indicators are not illuminated after making a proper connection, check the PC’s LAN card, the cable, switch conditions, and...
Page 39: Switch Stack Connections
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Switch Stack Connections Up to 8 DES-3326SR switches can be stacked, using the optional stacking module, into a switch stack that can then be configured and managed as a single unit. The Web-based Management agent of the Master Switch can configure and manage all of the switches in a switch stack −...
Page 40: 10Base-T Device
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 4-. Switch Stack connections between optional stacking modules 10BASE-T Device For a 10BASE-T device, the Switch’s LED indicators should display the following: • 100 LED speed indicator is OFF. • Link/Act indicator is ON.
Page 41: 100Base-Tx Device
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide 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.
Page 42: Switch Management And Operating Concepts
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide WITCH ANAGEMENT PERATING ONCEPTS This chapter discusses many of the concepts and features used to manage the switch, as well as the concepts necessary for the user to understand the functioning of the switch. Further, this...
Page 43: Diagnostic (Console) Port (Rs-232 Dce)
A network administrator can manage, control and monitor the switch from the console program. The DES-3326SR contains a CPU, memory for data storage, flash memory for configuration data, operational programs, and SNMP agent firmware. These components allow the switch to be actively managed and monitored from either the console port or the network itself (out-of-band, or in-band).
Page 44: Managing Switch Stacks
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide • Flow Control none • Make sure the terminal or PC you are using to make this connection is configured to match these settings. If you are having problems making this connection on a PC, make sure the emulation is set to VT-100.
Page 45 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide with the IP settings it had before becoming a member of the switch stack • If a new Master is elected, all Switches in the stack will automatically reboot. This includes situations where the new Master is determined by MAC address, for example, if the original Master is removed from the stack.
Page 46 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Stack Order MAC Address 1(added Switch) 001122334450 001122334451 2(original Master) 001122334452 001122334453 001122334454 001122334455 Not in use Not in use Table 5-2. Switch Stack Order − Second You can override the automatic stack order selection to use the...
Page 47: Switch Ip Address
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide 6 (added Switch) 001122334450 Not in use Not in use Table 5-3. Switch Stack Order − Final Switch IP Address Each Switch must be assigned its own IP Address, which is used for communication with an SNMP network manager or other TCP/IP application (for example BOOTP, TFTP).
Page 48 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The switch’s MAC address can also be found from the console program under the Switch Information menu item, as shown below. Setting an IP Address The IP address for the switch must be set before it can be managed with the web-based manager.
Page 49: Traps
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Traps Traps are messages that alert you of events that occur on the Switch. The events can be as serious as a reboot (someone accidentally turned OFF the Switch), or less serious like a port status change.
Page 50: Snmp
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide • Authentication Failure This trap signifies that someone has tried to logon to the switch using an invalid SNMP community string. The switch automatically stores the source IP address of the unauthorized user.
Page 51 • Modifying the configuration of network devices. The DES-3326SR 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 52 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Trap recipients are special users of the network who are given certain rights and access in overseeing the maintenance of the network. Trap recipients will receive traps sent from the Switch; they must immediately take certain actions to avoid future failure or breakdown of the network.
Page 53: Mibs
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Broadcast\Multicast Storm This trap is sent whenever the port reaches • the threshold (in packets per second) set globally for the switch. Counters are maintained for each port, and separate counters are maintained for broadcast and multicast packets.
Page 54: Packet Forwarding
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide operation). This process however can be quite involved, since you must know the MIB OIDs and retrieve them one by one. Packet Forwarding The Switch enters the relationship between destination MAC or IP addresses and the Ethernet port or gateway router the destination resides on into its forwarding table.
Page 55: Filtering
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide the packet to all ports, negating many of the benefits of having a switch. Static forwarding entries are not affected by the aging time. Filtering The switch uses a filtering database to segment the network and control communication between segments.
Page 56: 802.1W Rapid Spanning Tree
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide • MAC address filtering – the manual entry of specific MAC addresses to be filtered from the network. Packets sent from one manually entered MAC address can be filtered from the network. The entry may be specified as either a source, a destination, or both.
Page 57 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The basic function and much of the terminology is the same as STP. Most of the settings configured for STP are also used for RSTP. This section introduces some new Spanning Tree concepts and illustrates the main differences between the two protocols.
Page 58 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Listening Discarding Learning Learning Forwarding Forwarding Table 5-5. Comparing Port States RSTP is capable of more rapid transition to a forwarding state – it no longer relies on timer configurations – RSTP compliant bridges are sensitive to feedback from other RSTP compliant bridge links.
Page 59: Link Aggregation
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide 802.1d/802.1w Compatibility RSTP can interoperate with legacy equipment and is capable of automatically adjusting BPDU packets to 802.1d format when necessary. However, any segment using 802.1 STP will not benefit from the rapid transition and rapid topology change detection of RSTP.
Page 60 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 5-5. Link Aggregation Group Data transmitted to a specific host (destination address) will always be transmitted over the same port in a link aggregation group. This allows packets in a data stream to arrive in the same order they were sent.
Page 61: Vlans
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide VLANs A VLAN is a collection of end nodes grouped by logic rather than physical location. nodes that frequently communicate with each other are assigned to the same VLAN, regardless of where they are located physically on the network.
Page 62 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Tagging - The act of putting 802.1Q VLAN information into the header of a packet. Untagging - The act of stripping 802.1Q VLAN information out of the packet header. Ingress port - A port on a switch where packets are flowing into the switch and VLAN decisions must be made.
Page 63 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide • Egress rules – determines if the packet must be sent tagged or untagged. Figure 5-6. IEEE 802.1Q Packet Forwarding 802.1Q VLAN Tags The figure below shows the 802.1Q VLAN tag. There are four additional octets inserted after the source MAC address.
Page 64 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide identifier and is used by the 802.1Q standard. Because the VID is 12 bits long, 4094 unique VLANs can be identified. The tag is inserted into the packet header making the entire packet longer by 4 octets.
Page 65 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 5-8. 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.
Page 66 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide 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 67 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Tagging and Untagging Every port on an 802.1Q compliant switch can be configured as tagging or untagging. Ports with tagging enabled will put the VID number, priority and other VLAN information into the header of all packets that flow into and out of it.
Page 68 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide and the destination port transmits it to its attached network segment. If the packet is not tagged with VLAN information, the ingress port will tag the packet with its own PVID as a VID (if the port is a tagging port).
Page 69 VLANs are based on layer 3 information, but this does not constitute a ‘routing’ function. The DES-3326SR allows an IP subnet to be configured for each 802.1Q VLAN that exists on the switch. Even though a switch inspects a packet’s IP address to...
Page 70: Ip Addresses
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide • Subnet – a portion of a network sharing a particular network address. • Subnet mask – a 32-bit number used to describe which portion of a Network Address refers to the subnet and which portion refers to the host.
Page 71 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide address easier to read. A computer sees an IP address not as four decimal numbers, but as a long string of binary digits (32 binary digits or 32 bits, IP addresses are 32-bit addresses).
Page 72 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide represents 2 raised to the 0 power (any number raised to the power is equal to one, by definition). IP addresses actually consist of two parts, one identifying the network and one identifying the destination (node) within the network.
Page 73 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The part of the IP address that belongs to the network is the part that is ‘hidden’ by the ‘1’s in the subnet mask. This can be seen below: • Class A NETWORK.node.node.node...
Page 74 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide • Class A – 11111111.00000000.00000000.00000000 255.0.0.0 • Class B – 11111111.11111111.00000000.00000000 255.255.0.0 • Class C – 1111111.11111111.11111111.00000000 255.255.255.0 Additional bits can be added to the default subnet mask for a given Class to further subnet a network.
Page 75 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide This example uses an 11-bit subnet mask. (There are 3 additional bits added to the default Class A subnet mask). So the number of subnets is: – 2 = 8 – 2 = 6 Subnets of all “0”s and all “1”s are not allowed, so 2 subnets...
Page 76 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide # of Subnet Mask # of # of Total Hosts Bits Subnets Hosts Nota tion 255.192.0.0 419430 8388604 255.224.0.0 209715 12582900 255.240.0.0 104857 14680036 255.248.0.0 524286 15728580 255.252.0.0 262142 16252804 255.254.0.0 131070 16514820 255.255.0.0...
Page 77 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide # of Subnet Mask CIDR # of # of Total Bits Notation Subnets Hosts Hosts 255.255.192 16382 32764 255.255.224.0 8190 49140 255.255.240.0 4094 57316 255.255.248.0 2046 61380 255.255.252.0 1022 63364 255.255.254.0 64260 255.255.255.0...
Page 78 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide configured prior to setting up the corresponding IP interface. An IP addressing scheme must then be established, and implemented when the IP interfaces are set up on the switch. An example is presented below:...
Page 79: Internet Protocols
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide VLAN Name Network Address IP Address System (default) 10.32.0.0 10.32.0.1 Engineering 10.64.0.0 10.64.0.1 Marketing 10.96.0.0 10.96.0.1 Finance 10.128.0.0 10.128.0.1 Sales 10.160.0.0 10.160.0.1 Backbone 10.192.0.0 10.192.0.1 Table 5-13. VLAN Example – Assigned IP Addresses The 6 IP interfaces, each with an IP address (listed in the table above), and a subnet mask of 255.224.0.0 can be entered into...
Page 80 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide approach. Each layer has clearly defined tasks, protocol, and interfaces for communicating with adjacent layers, but the exact way these tasks are accomplished is left to individual software designers. The Open Systems Interconnect (OSI) seven-layer model has been adopted as the reference for the description of modern networking, including the Internet.
Page 81 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Protocol layering simply tool visualizing organization of the necessary software and hardware in a network. In this view, Layer 2 represents switching and Layer 3 represents routing. Protocol layering is actually a set of...
Page 82 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide layers communicate by an internal interface. This interface is usually not publicly documented and is frequently proprietary. It has some of the same characteristics of a protocol and two stacks from the same software vendor may communicate in the same way.
Page 83 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Layer 2 does not ordinarily extend beyond the intranet. connect to the Internet usually requires a router and a modem or other device to connect to an Internet Service Provider’s WAN. These are Layer 3 functions.
Page 84 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide This is important for multicast traffic, which cannot tolerate the overhead and latency of TCP. TCP and UDP also differ in the amount of error recovery provided and whether or not it is visible to the user application.
Page 85 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide communication between the two computers, this is done by 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.
Page 86: Packet Headers
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide 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’s own, larger envelope. This process is referred to as encapsulation.
Page 87 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide writes the sum in the checksum field. The receiving TCP recalculates the checksum and if the numbers are different, the packet is dropped. Figure 5-10. TCP Packet Header When packets have been successfully received, TCP sends an acknowledgement.
Page 88 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide increases the number in the window field. In practice, a single packet can acknowledge the receipt of data and give permission for more data to be sent. TCP sends its packets to IP with the source and destination IP addresses.
Page 89 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 5-11. 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.
Page 90 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 5-12. Ethernet Packet Header When a packet is received, the headers are removed. Ethernet Network Interface Card (NIC) removes the Ethernet header and checks the checksum. It then looks at the type code.
Page 91 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide computer requesting the file transfer must connect specifically to the FTP server on the computer that has the file. This is accomplished using sockets. A socket is a pair of TCP port numbers used to establish a connection from one computer to another.
Page 92 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Connection 2 10.42.73.23, 10.128.12.1 1235, 21 The same computers are making the connections, so the IP addresses are the same. Both computers are using the same well-known TCP port for the FTP server. The local FTP clients are using different TCP port numbers.
Page 93: The Domain Name System
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide UDP uses port numbers in a way that is directly analogous to TCP. There are well-known UDP port numbers for servers that use UDP. Figure 5-13. Ethernet Packet Header The UDP header is shorter than a TCP header. UDP also uses a checksum to verify that data is received uncorrupted.
Page 94 Internet and has been adapted for use within intranets. For two DNS servers to communicate across different subnets, the DNS Relay of the DES-3326SR 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 95: Dhcp Servers
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide requires the server to contact other DNS servers until the name is resolved. Iterative resolution specifies that if the DNS server cannot supply an answer, it returns the address of the next DNS server the client should contact.
Page 96: Ip Routing
Address Resolution Protocol (ARP) request that contains its new IP address. For two DHCP servers to communicate across different subnets, the BOOTP/DHCP Relay of the DES-3326SR must be used. The DHCP servers are identified by IP addresses. IP Routing IP handles the task of determining how packets will get from their source to their destination.
Page 97 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Before a local computer sends a packet, it first determines whether the destination address is on the local network. If it is, the packet can be sent directly to the remote device. If it is not, the local computer looks for the network address of the destination and the corresponding gateway address.
Page 98: Arp
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide determine the maximum packet size across all of the networks that may make up the route for a connection. IP has, therefore, a method to divide packets into multiple, smaller packets to cross such networks. This division of large packets into smaller packets is referred to as fragmentation.
Page 99: Multicasting
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide the request. If it is, the local ARP replies by sending its MAC IP address pair back to the requesting system. Second, if the local computer is not the target of the request, the packet is dropped.
Page 100 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Some of the reserved IP multicast addresses are as follows: Address Assignment 224.0.0.0 Base Address (reserved) 224.0.0.1 All Systems on this subnet 224.0.0.2 All Routers on this subnet 224.0.0.3 Unassigned 224.0.0.4 DVMRP Routers 224.0.0.5...
Page 101 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Internet Group Management Protocol (IGMP) End users that want to receive multicast packets must be able to inform nearby routers that they want to become a multicast group member of the group these packets are being sent to.
Page 102 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The IGMP Type codes are shown below: Type Meaning 0x11 Membership Query (if Group Address is 0.0.0.0) Specific Group Membership Query (if Group Address is Present) Membership Report (version 2) Leave a Group (version 2) Membership Report (version 1) Table 5-14.
Page 103 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide IGMP version 2 introduces a few extensions to IGMP version 1 such as, the election of a single multicast querier for each network, explicit ‘leave’ reports, and queries that are specific to a particular multicast group.
Page 104 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Multicast Routing Algorithms 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. Multicast packets are delivered by constructing multicast trees...
Page 105 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide packet on all links except the one on which it was received. This guarantees that all routers in the network will receive a copy of the packet. The only information the router needs to store is whether a link is a part of the spanning tree (leads to a router) or not.
Page 106 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide spanning tree, nor does it need a mechanism to stop the forwarding of packets. RPB does not use multicast group membership information in its forwarding decisions. Reverse Path Multicasting (RPM) Reverse Path Multicasting (RPM) introduces an enhancement to RPB –...
Page 107: Multicast Routing Protocols
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide removes all of the prune information it has gathered from it’s memory, and the entire process repeats. This gives all subsequent routers on the network a chance to receive multicast packets from all multicast sources on the network. It also gives all users a chance to join a given multicast group.
Page 108 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide delivery tree to be reactivated. This allows for lower latency when a leaf router adds a new member to a multicast membership group. Graft messages are forwarded one hop (one router) back at a time toward a multicast source until they reach a router that is on an active branch of the multicast delivery tree.
Page 109: Routing Protocols
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Routing Protocols Routing Information Protocol (RIP) The Routing Information Protocol is a distance-vector routing protocol. There are two types of network devices running RIP – active and passive. Active devices advertise their routes to others through RIP messages, while passive devices listen to these messages.
Page 110 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide advertised. If the route is not advertised for a period of time (usually 180 seconds), the route is removed from the routing table. RIP does not have an explicit method to detect routing loops.
Page 111 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide RIP Version 1 Message Format There are two types of RIP messages: routing information messages and information requests. The same format is used by both types. Figure 5-17. RIP v.1 Message Format...
Page 112 DES-3326SR Layer 3 Fast 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...
Page 113 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The distances, measured in router hops are entered in the Distance to Source Network, and Distance to Destination Network fields. RIP 1 Route Interpretation RIP was designed to be used with classed address schemes, and does not include an explicit subnet mask.
Page 114 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 5-18. RIP Message Format RIP version 2 also adds a 16-bit route tag that is retained and sent with router updates. It can be used to identify the origin of the route.
Page 115 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Open Shortest Path First (OSPF) The Open Shortest Path First (OSPF) routing protocol that uses link-state algorithm determine routes network destinations. A “link” is an interface on a router and the “state” is a description of that interface and its relationship to neighboring routers.
Page 116 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The Link-State Algorithm An OSPF router uses a link-state algorithm to build a shortest path tree to all destinations known to the router. The following is a simplified description of the algorithm’s steps: 1.
Page 117 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide and then calculates the shortest path to each destination based on the cumulative cost to reach that destination over multiple possible routes. Each router will then have its own Shortest Path Tree (from the perspective of its location in the network area) even though every router in the area will have and use the exact same link-state database.
Page 118 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 5-19. Constructing a Shortest Path Tree...
Page 119 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Router A 128.213.0.0 Router B Router C 192.213.11.0 Router D 222.211.10.0 Figure 5-20. Constructing a Shortest Path Tree The diagram above shows the network from the viewpoint of Router A. Router A can reach 192.213.11.0 through Router B with a cost of 10+5=15.
Page 120 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Router A 128.213.0.0 Router B Router C 192.213.11.0 222.211.10.0 Figure 5-21. Constructing a Shortest Path Tree - Completed Note that this shortest path tree is only from the viewpoint of Router A. The cost of the link from Router B to Router A, for instance is not important to constructing Router A’s shortest...
Page 121 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide receive particular link-state updates are located. This helps ensure that routing updates are not flooded throughout the entire network and to reduce the amount of bandwidth consumed by updating the various router’s routing tables.
Page 122 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Router (DR) and this router issues the network link-state updates describing every router on the segment. • External Link-State Updates – issued by an Autonomous System Border Router describes routes to destinations outside the AS or a default route to the outside AS.
Page 123 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide OSPF Authentication OSPF packets can be authenticated as coming from trusted routers by the use of predefined passwords. The default for routers is to use not authentication. There are two other authentication methods − simple password...
Page 124 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The backbone is at the center of all other areas − all areas of the network have a physical (or virtual) connection to the backbone through a router. OSPF allows routing information...
Page 125 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide path between each area 0. Virtual links can also be added for redundancy to protect against a router failure. A virtual link is configured between two border routers that both have a connection to their respective area 0s.
Page 126 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide packets each segment order acknowledge each other’s existence segment and to elect a Designated Router on multi-access segments. OSPF requires these intervals to be exactly the same between any two neighbors. If any of these intervals are different, these routers will not become neighbors on a particular segment.
Page 127 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Building Adjacency Two routers undergo a multi-step process in building the adjacency relationship. following simplified description of the steps required: • Down − No information has been received from any router on the segment.
Page 128 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide secondary. The primary router will poll the secondary for information. • Exchange − Routers will describe their entire link-state database sending database description packets. • − Loading routers finalizing information exchange. Routers have link-state request list and a link-state retransmission list.
Page 129 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide • Database Description packet • Link-State Request packet The Link-State Update packet • • Link-State Acknowledgment packet The OSPF Packet Header Every OSPF packet is preceded by a common 24 byte header.
Page 130 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Type Description Hello Database Description Link-State Request Link-State Update Link-State Acknowledgment Packet Length The length of the packet in bytes. This length includes byte header. Router ID The Router ID of the packet’s source.
Page 131 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Authentication Type The type of authentication to be used for the packet. Authentication A 64-bit field used by the authentication scheme. Table 5-16. OSPF Packet Header The Hello Packet Hello packets are OSPF packet type 1.
Page 132 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Hello Packet Version No. Packet Length Router ID Area ID Checksum thentication Type Authentication Authentication Network Mask Hello Interval tions Router Priority Router Dead Inter Designated Router Backup Designated Ro uter Neighbor Figure 5-23.
Page 133 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Priority. The Router Priority is used in the election of the DR and BDR. If this field is set to 0, the router is ineligible become the DR or the BDR. Router Dead Interval...
Page 134 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The Database Description Packet Database Description packets are OSPF packet type 2. These packets are exchanged when an adjacency is being initialized. They describe the contents of the topological database. Multiple packets may be used to describe the database. For this purpose a poll-response procedure is used.
Page 135 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Options The optional capabilities supported by the router. I – bit The Initial bit. When set to 1, this packet is the first in the sequence of Database Description packets. M – bit The More bit.
Page 136 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The rest of the packet consists of a list of the topological database’s pieces. Each link state advertisement in the database is described by its link state advertisement header. The Link-State Request Packet Link-State Request packets are OSPF packet type 3.
Page 137 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Link-State Request Packet Packet Length Version No. Router ID Area ID Checksum Authentication Type Authentication Authentication Link-State Type Link-State ID Advertising Router Figure 5-25. Link-State Request Packet Each advertisement requested is specified by its Link-State Type, Link-State ID, and Advertising Router.
Page 138 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Link-State Update packets are multicast on those physical networks that support multicast/broadcast. In order to make the flooding procedure reliable, flooded advertisements are acknowledged in Link-State Acknowledgment packets. retransmission of certain advertisements is necessary, the retransmitted advertisements are always carried by unicast Link-State Update packets.
Page 139 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The Link-State Acknowledgment Packet Link-State Acknowledgment packets are OSPF packet type 5. To make the folding of link-state advertisements reliable, flooded advertisements are explicitly acknowledged. This acknowledgment is accomplished through the sending and receiving of Link-State Acknowledgment packets.
Page 140 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Each acknowledged link-state advertisement is described by its link-state advertisement header. It contains all the information required to uniquely identify both the advertisement and the advertisement’s current instance. Link-State Advertisement Formats There are five distinct types of link-state advertisements. Each link-state advertisement begins with a standard 20-byte link- state advertisement header.
Page 141 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide identify the advertisements (Link State Type, Link State ID, and Advertising Router). Multiple instances of the link state advertisement may exist in the routing domain at the same time. It is then necessary to determine which instance is more recent.
Page 142 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The link state type are as follows: Type Description Router Links Network Links Summary Link (IP Network) Summary Link (ASBR) AS External Link Link State ID This field identifies the portion of the internet...
Page 143 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide advertisement, including the link state advertisement header by excepting the Link State Age field. Length The length in bytes of the link state advertisement. This includes the 20-byte link state advertisement header.
Page 144 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Routers Links Advertisem ents Link-State Age tions Link-State Type Link-State ID Advertising Router Link-State Sequence N umber Link-State Checksum Length Reserved Reserved Number of Links Link ID Link Data Type No. Of TOS...
Page 145 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Field Description V – bit When set, the router is an endpoint active virtual link that is using the described area as a Transit area (V is for Virtual link endpoint). E – bit...
Page 146 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Field Description Type A quick classification of the router link. One of the following: Type Description Point-to-point connection to another router. Connection to a transit network. Connection to a stub network. Virtual link.
Page 147 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide network/subnet number. Neighboring router’s Router ID Link Data Contents again depend on the link’s Type field. For connections to stub networks, it specifies the network’s IP address mask. For unnumbered point-to-point connection, it specifies the interface’s...
Page 148 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide For each link, separate metrics may be specified for each Type of Service (TOS). The metric for TOS 0 must always be included, and was discussed above. Metrics for non-zero TOS are described below.
Page 149 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The distance form the network to all attached routers is zero, for all TOS. This is why the TOS and metric fields need not be specified in the network links advertisement. The format of the Network Links Advertisement is shown below:...
Page 150 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Summary Link Advertisements Summary link advertisements are Type 3 and 4 link state advertisements. These advertisements are originated by Area Border routers. A separate summary link advertisement is made for each destination known to the router, that belongs to the Autonomous System (AS), yet is outside the area.
Page 151 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide summary route, the advertisement’s Link State ID is always set to the Default Destination − 0.0.0.0, and the Network Mask is set to 0.0.0.0. Separate costs may be advertised for each IP Type of Service.
Page 152 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Autonomous Systems External Link Advertisements Autonomous Systems (AS) link advertisements are Type 5 link state advertisements. These advertisements are originated by AS boundary routers. A separate advertisement is made for each destination known to the router, that is external to the AS external link advertisements usually describe a particular external destination.
Page 153 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Field Description Network Mask The IP address mask for advertised destination. E – bit type external metric. If the E – bit is set, the metric specified is a Type 2 external metric.
Page 154 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide metric depends on the external type indication (the E – bit above). External Route Tag A 32-bit field attached to each external route. This is not used by the OSPF protocol itself.
Page 155: Web-Based Switch Management
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide ASED WITCH ANAGEMENT Introduction The DES-3326SR 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 156: Before You Start
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Before You Start The DES-3326SR 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. Its function in a network can be thought of as a new generation of router that performs routing functions in hardware, rather than software.
Page 157: Vlan Layout
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-3326SR, a VLAN can consist of end-nodes – just like a traditional layer 2 switch, but...
Page 158: Assigning Ip Network Addresses And Subnet Masks To Vlans
Finally, the IP subnets can be assigned to the VLANs. Assigning IP Network Addresses and Subnet Masks to VLANs The DES-3326SR allows the assignment of IP subnets to individual VLANs. Developing an IP addressing scheme is a complex subject, but it is sufficient here to mention that the total number of anticipated end nodes –...
Page 159: Management
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The second step is to configure an IP interface on the Switch. This done manually through console automatically using BOOTP/DHCP. Management To begin managing your Switch simply run the browser you have installed on your computer and point it to the IP address you have defined for the device.
Page 160: Configuring The Switch
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Configuring the Switch User Accounts Management From the Main Menu, highlight Setup User Accounts and press Enter, then the User Account Management menu appears. Figure 6 - 2. User Accounts Control Table...
Page 161 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 3. User Accounts Control Table - Add 1. Enter the new user name, assign an initial password, and then confirm the new password. Determine whether the new user should have Admin or User privileges.
Page 162: Saving Changes
You can logon again and are now ready to continue configuring the Switch. Saving Changes The DES-3326SR has two levels of memory; normal RAM and non-volatile or NV-RAM. Configuration changes are made effective by highlighting Apply and pressing the Apply button.
Page 163 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Some settings, though, require you to restart the switch before they will take effect. Restarting the switch erases all settings in RAM and reloads the stored settings from the NV-RAM. Thus, it is necessary to save all setting changes to NV-RAM before rebooting the switch.
Page 164: Factory Reset
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide 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. Factory Reset The following menu is used to restart the switch using only the configuration that was supplied by the factory.
Page 165: Using Web-Based Management
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide USING WEB-BASED MANAGEMENT Setting Up Web Management Before running Web-based management, some basic configuration of the switch may need to be performed. following at a minimum must be configured or known for the switch to be managed: •...
Page 166 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The IP address may alternatively be set using the Command Line Interface (CLI) over the console serial port as follows: 1. Starting at the command line prompt DES3326SR4# − enter the commands config ipif System ipaddress xxx.xxx.xxx.xxx/yyy.yyy.yyy.yyy.
Page 167 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 7. Save Changes Screen Starting and Stopping the Web-based Manager Do the following to use the web-based manager: 1. Start a Java-enabled Web browser from any machine with network access to the switch. (Preferred browsers include Internet Explorer 4.0 or above, or Netscape...
Page 168 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 8. Password Dialog Box 1. There is no default User Name or Password. Click the OK button to continue. The default user has Admin privileges. 2. The full application will now launch.
Page 169 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Areas of the User Interface The figure below shows the user interface. The user interface is divided into 3 distinct areas as described in the table. Area 1 Area 2 Area 3 Figure 6 - 9.
Page 170 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Allows the selection of commands. Presents switch information based on your selection and the entry of configuration data. This section, arranged by topic, describes how to perform common monitoring and configuration tasks on the DES- 3326SR switch using the Web-based Manager, you can perform any of the tasks described in the following sections.
Page 171 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Switch Information Click the Switch Information link in the Configuration menu. Figure 6 - 10. Switch Information – Basic Settings...
Page 172 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The Switch Information window shows 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. This information is helpful to keep track of PROM and Firmware updates and to obtain the switch’s MAC address for entry into another network...
Page 173 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 11. Basic Switch Setup...
Page 174 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Note: the switch’s factory default IP address is 10.90.90.90 with a subnet mask of 255.0.0.0 and a default gateway of 0.0.0.0. To manually assign the switch’s IP address, subnet mask, and default gateway address: Select Manual from the Get IP From drop-down menu.
Page 175 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide gateways to be assigned by a central BOOTP server. If this option is set, the Switch will first look for a BOOTP server provide with this information before using the default or previously entered settings.
Page 176 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide for a Class C network, but custom subnet masks are allowed. Default Gateway IP address that determines where packets with a destination address outside the current subnet should be sent. This is usually the address of a router or a host acting as an IP gateway.
Page 177 Figure 6 - 13. Switch Stack Icons Here, the switch Unit 2 (slave) has been selected. When the up to 8 DES-3326SR switches are properly interconnected through their optional Stacking Modules,...
Page 178 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide information about the resulting switch stack is displayed under the Stack Information link. This link is visible only when a switch stack has been connected and the optional Stacking Modules are active.
Page 179 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The Version field displays the version number of the stacking firmware. The switch’s current order in the switch stack is also displayed on the Stacking Module’s front panel − under the STACK NO.
Page 180 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide show stacking {mode/version} Using the optional parameter mode displays only the stacking mode of the switches in the switch stack. Using the optional parameter version displays only the stacking firmware version of the switches in the switch stack.
Page 181 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide auto Switches in the stack will be assigned a unit ID sing a comparison of the numerical value of the switch’s MAC address. The lowest MAC address in the switch stack will become Unit 1 (the Master Switch), the next highest MAC address will become Unit 2, and so on.
Page 182 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide With the management station’s console connected to the serial port of the switch with the lowest MAC address, enter the following command at the prompt: config stacking mode slave This will configure the switch with MAC address 00-00-00-22- 22-00 to always have a Unit number greater than 1 (as a slave).
Page 183 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Configure Ports Click the Port Configurations link from the Basic Setup folder: Figure 6 - 18. Port Configurations...
Page 184 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Click on the port you want to configure on the Port Configurations menu and then click the Edit button. This will open the following dialog box: Figure 6 - 19. Port Configurations − Edit...
Page 185 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Use the Speed/Duplex<Auto> pull-down menu to either select the speed and duplex/half-duplex state of the port. Auto – auto-negotiation between 10 and 100 Mbps devices, full- or half-duplex. The Auto setting allows the port to automatically determine the fastest settings the device the port is connected to can handle, and then to use those settings.
Page 186 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The following fields can be set: Parameter Description State <Enabled> Toggle the State <Enabled> field to either enable or disable a given port. Speed/Duplex Toggle the Speed/Duplex <Auto> field <Auto> either select speed duplex/half-duplex state of the port.
Page 187 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Port Security Settings Click the selection button on the far left that corresponds to the port you want to configure and click the Edit button. Figure 6 - 20. Configure Port Security...
Page 188 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Configure the following parameters for Port Security: Parameter Description Admin State Toggle Admin State to either enable or <Disabled> disable port security for the port. Max Learning Select maximum number Address <1 >...
Page 189 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Traffic Segmentation The traffic segmentation table is used to limit traffic flow from a single port to other ports on the switch. It cannot be used to segment traffic between switch units in a stack. For this it would be appropriate to use VLANs or a filtering method.
Page 190 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 22. Traffic Segmentation Table Click the selection button on the far left that corresponds to the port you want to configure and click the Edit button. This will open the following dialog box: Figure 6 - 23.
Page 191 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Serial Port Settings The Serial Port Settings window allows the configuration of switch’s serial port out-of-band TCP/IP communications using SLIP. Click on the Serial Port Settings link from the Basic Setup folder.
Page 192 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The following fields can then be set: Parameter Description Baud Rate Displays the serial bit rate used to communicate with a management station. The console baud rate is 9600 bits per second.
Page 193: Network Management
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide NETWORK MANAGEMENT The DES-3326SRSR incorporates a flexible SNMP management for the switching environment. SNMP management can be customized o suit the needs of the networks and the preferences of the network administrator. Use the SNMP V3 menus to select the SNMP version used for specific tasks.
Page 194 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide SNMP View Table The SNMP View Table is used to assign views to community strings that define which MIB objects can be accessed by an SNMP manager. To delete an existing View...
Page 195 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 25. SNMP View Table – Add New Parameter Description View Name Type an alphanumeric string of up to 32 characters. This is used to identify the new SNMP view being created.
Page 196 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide SNMP Group Table The SNMP Group created with this table maps SNMP users (identified in the SNMP User Table) to the views created in the previous menu. Figure 6 - 26. SNMP Group Table...
Page 197 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 27.SNMP Group – Add New Parameter Description Group Name Type an alphanumeric string of up to 32 characters. This is used to identify the new SNMP group of SNMP users.
Page 198 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide SNMPv2 – Specifies that SNMP version 2c will be used. The SNMP v2c supports both centralized and distributed network management strategies. It includes improvements in the Structure of Management Information (SMI) and adds some security features.
Page 199 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide SNMP Community Table Use this table to create an SNMP community string to define the relationship between the SNMP manager and an agent. The community string acts like a password to permit access to the agent on the switch.
Page 200 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide click the Delete button. To create a new entry, click the New button, a separate menu will appear. Configure the parameters as desired and click the Apply button to add the new string to the SNMP Community Table.
Page 201 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide must exist in the SNMP View Table. Access Right Use the pull-down menu to select the access right: read_only − Specifies that SNMP community members using the community string created with this command can only read the contents of the MIBs on the switch.
Page 202 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 30. Management Station IP Settings Management stations are computers on the network that will be used to manage the switch. You can limit the number of possible management stations by entering up to three IP addresses.
Page 203 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 31. Engine ID To change the Engine ID, type the new Engine ID in the space provided and click the Apply button. SNMP Host Table Use the SNMP Host Table to set up trap recipients.
Page 204 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 33. SNMP Host Table – Add New Parameter Description IP Address Type the IP address of the remote management station that will serve as the SNMP host for the switch.
Page 205 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide SNMP User Table Use the SNMP User Table to create a new SNMP user and add the user to an existing SNMP group or to a newly created group. Figure 6 - 34. SNMP User Table...
Page 206 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Parameter Description User Name Type in the new SNMP V3 user name or community string for V1 or V2. This can be any alphanumeric name of up to 32 characters that will identify the new SNMP user.
Page 207 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide be used. SHA − To specify that the HMAC- SHA-96 authentication level will be used. If Encryption (V3 only) is checked configure also: Priv-Protocol In the Space provided, type an alphanumeric string of between 8...
Page 208: Advanced Setup
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Advanced Setup Changing switch operation mode setting changes some of the menus and configuration options for the Advanced Setup of the switch. The configuration data for each mode is however, saved when the switch’s operating mode is changed.
Page 209 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide To delete an existing 802.1Q VLAN, click the corresponding click-box to the left of the VLAN you want to delete from the switch and then click the Delete button. To create a new 802.1Q VLAN, click the New button: Figure 6 - 37.
Page 210 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 38. 802.1Q Static VLANs Entry Settings – Edit The following fields can then be set in either the Add or Edit dialog boxes: Parameter Description Allows the entry of a VLAN ID in the...
Page 211 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Advertising enabled Advertisement disabled using this pull-down menu. Advertising allows members to join this VLAN through GVRP. Allows an individual port to be Port specified as member of a VLAN. Allows an individual port to be Tagged/Untagged specified as Tagging.
Page 212 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide of the VLAN dynamically. The Port VLAN ID (PVID) dialog box, shown below, allows you to determine whether the switch will share its VLAN configuration information with other GARP VLAN Registration Protocol (GVRP) enabled switches.
Page 213 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The following fields can be set: Parameter Description PVID Port VLAN Identifier classification mechanism that associates a port with a specific VLAN used make forwarding decisions for untagged packets received by the port. For...
Page 214 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide To enable or disable GVRP, globally, on the switch: Go to the VLAN Configurations link and click on the Switch GVRP link: Figure 6 - 40. – Switch GVRP Parameter Description GVRP <disabled>...
Page 215 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide...
Page 216: Layer 3 Ip Networking
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Layer 3 IP Networking To access the Layer 3 IP Networking links, select Configure Layer 3 - IP Networking from the Advanced Setup folder. Setting Up IP Interfaces Each VLAN must be configured prior to setting up the VLAN’s corresponding IP interface.
Page 217 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Any IP address from the allowed range of IP addresses for each subnet can be chosen as an IP address for an IP interface on the switch. For this example, we have chosen the next IP address above the network address for the IP interface’s IP Address:...
Page 218 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 41. Setup IP Interface To setup a new IP interface, click the New button: Figure 6 - 42. Setup IP Interface – Add To edit an existing IP interface, click on the Edit button:...
Page 219 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 43. Setup IP Interface – Edit Choose a name for the interface to be added and enter it in the Interface Name field (if you are editing an IP Interface, the Interface Name will already be in the top field as seen in the window above).
Page 220 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The following fields can be set: Parameter Description Interface Name This field displays the name for the IP interface. The default IP interface is named “System”. IP Address This field allows the entry of an IP address to be assigned to this IP interface.
Page 221 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Setup the Routing Information Protocol (RIP) Click on the Setup IP Interfaces link and then click on the RIP Settings folder. Then click on the RIP State link to open the following dialog box: Figure 6 - 44.
Page 222 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 45. RIP Interface Settings To edit a RIP configuration, click the corresponding Interface Name click-box and then click the Edit button: Figure 6 - 46. Setup RIP – Edit...
Page 223 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The following fields can be set: Parameter Description Interface Name The name of the IP interface on which RIP is to be setup. This interface must previously configured on the Switch. TX Mode Toggle among Disabled, V1 Only, V1 <Disabled>...
Page 224 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide OSPF MD5 Key Table Configuration The MD5 Key Table Configuration menu allows the entry of a 16 character Message Digest − version 5 (MD5) key which can be used to authenticate every packet exchanged between OSPF routers.
Page 225 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 48. MD5 Key Table − Add To edit an entry in the MD5 key table, select the key from the MD5 Key Table Configuration screen, and click the Edit button:...
Page 226 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The following fields can be set: Parameter Description Key ID A number from 1 to 255 used to identify the MD5 Key. A alphanumeric string of between 1 case-sensitive characters used to generate the Message Digest...
Page 227 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Setup OSPF The OSPF General Setup dialog box allows OSPF to be enabled or disabled on the switch − without changing the switch’s OSPF configuration. In addition, the switch can be designated as an Autonomous System (AS) Border Router or not.
Page 228 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The following parameters can be set or are displayed: Parameter Description OSPF Route ID A 32-bit number (in the same format as an IP address − xxx.xxx.xxx.xxx) that uniquely identifies the switch in the OSPF domain.
Page 229 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide areas use a default summary external route (0.0.0.0 or Area 0) to reach external destinations. From the Layer 3 IP Networking folder, click on the OSPF folder and then click on the OSPF Area Setting link: Figure 6 - 51.
Page 230 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide To edit an existing OSPF area definition, select the area from the OSPF Area Setting screen, and then click the Edit button: Figure 6 - 53. OSPF Area Setting − Edit The following fields can be set or are displayed:...
Page 231 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Default Cost Displays the default cost for the route to the stub of between 0 and 65,535. The default is 0. OSPF Interface Configuration This menu is used to configure the OSPF interface settings.
Page 232 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 55. OSPF Interface Configuration The following fields can then be set: Parameter Description Interface Name Displays an IP interface previously configured on the switch. Area ID Allows the entry of an OSPF Area ID configured above.
Page 233 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Between 5 and 65535 seconds can be specified. The Hello Interval, Dead Interval, Authorization Type, and Authorization Key should be the same for all routers on the same network. Dead Interval Allows the specification of the length...
Page 234 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide menu. When MD5 is selected, the Auth Key ID:[ ] field allows the specification of the Key ID as defined in the MD5 configuration above. This must be the same MD5 Key as used by the neighboring router.
Page 235 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 56. OSPF Interface Configuration − Monitor Virtual Interface Configuration Virtual Interfaces are used by OSPF to link areas that do not have a physical connection to the backbone (also called Area 0) or to link areas of the backbone itself that are discontinuous.
Page 236 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide To setup an OSPF Virtual Interface on the switch, click the Virtual Interface Configuration link under the OSPF folder: Figure 6 - 57. Virtual Interface Configuration To add an OSPF Virtual Interface on the switch, click the New button: Figure 6 - 58.
Page 237 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The following fields can be set or are displayed: Parameter Description Transit Area ID Allows the entry of an OSPF Area ID − previously defined on the switch − that allows remote...
Page 238 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide To configure OSPF Area Aggregation on the switch, click the Area Aggregation Configuration link under the OSPF folder: Figure 6 - 59. OSPF Aggregation Configuration To add an OSPF Area Aggregation entry on the switch, click the New button: Figure 6 - 60.
Page 239 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The following fields can be set or are displayed: Parameter Description Area ID Allows the entry the OSPF Area ID for which the routing information will be aggregated. This Area ID must be previously defined on the switch.
Page 240 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide To add a OSPF Host Route on the switch, click the New button: Figure 6 - 62. OSPF Host Route Settings − Add The following fields can be set or are displayed:...
Page 241 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide among the various routers according to the individual routers current routing protocol. The DES-3326SR can redistribute routing information between the OSPF and RIP routing protocols to all routers on the network that are running OSPF or RIP.
Page 242 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide To edit an existing Route Redistribution entry on the switch, select the entry from the Route Redistribution screen and click on the Edit button: Figure 6 - 65. Route Redistribution − Edit...
Page 243: Ip Multicasting
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Allows the entry of an interface cost. Metric IP Multicasting The functions supporting IP multicasting are added f und under the IP Multicast Routing Protocols folder, from the Layer 3 IP Networking folder.
Page 244 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide without changing the individual protocol’s configuration from the above window. IGMP Snooping Settings To configure IGMP Snooping: From the Layer 3 IP Networking folder, select the IP Multicast Routing Protocols folder, and click IGMP Snooping Configurations to open the following dialog box: Figure 6 - 67.
Page 245 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 68. IGMP Snooping Configuration The following fields can be set: Parameter Description VLAN Name Allows the entry of the name of the VLAN for which IGMP Snooping is to be configured.
Page 246 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Max Response Sets the maximum amount of time allowed before sending an IGMP response report. A value between 1 and 25 seconds can be entered, with a default of 10 seconds. Robustness...
Page 247 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide seconds. Route Timeout Specifies the maximum amount of time a route will remain in the switch’s forwarding table without receiving a membership report. The default is 260 seconds. This field can be switched using the State <Disabled>...
Page 248 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 70. IGMP Interface Configuration − Edit This dialog box allows the configuration of IGMP for each IP interface configured on the switch. IGMP can be configured as Version 1 or 2 by toggling the Version field using the pull-down menu.
Page 249 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The following fields can be set: Parameter Description Interface Name Displays the name of the IP interface <System> that is to be configured for IGMP. This must be a previously configured IP interface.
Page 250 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide packets. DVMRP Interface Configuration To configure DVMRP for an IP interface, Click the DVMRP Interface Configurations link from the IP Multicast Routing Protocols folder: Figure 6 - 71. DVMRP Interface Configuration Figure 6 - 72. DVMRP Interface Configuration − Edit...
Page 251 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide This menu allows the Distance-Vector Multicast Routing Protocol to be configured for each IP interface defined on the switch. The Distance Vector Multicast Routing Protocol (DVMRP) is a hop-based method of building multicast delivery trees from multicast sources to all nodes of a network.
Page 252 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide multicast delivery tree (not ‘pruned’) – if there is an alternative route. The following fields can be set: Parameter Description Interface Displays the name of the IP interface Name<System> for which DVMRP is to be configured.
Page 253 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide State <Disabled> This field can be toggled between Enabled and Disabled and enables or disables DVMRP for the IP interface. The default is Disabled. PIM-DM Settings The Protocol Independent Multicast – Dense Mode (PIM-DM)
Page 254 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide To configure PIMDM for an IP interface, click the PIMDM Interface Configuration link under the IP Multicast Routing Protocols folder: Figure 6 - 73. PIM-DM Interface Configuration The Protocol Independent Multicast − Dense Mode (PIM-DM) protocol can be individually configured for each IP interface on the switch.
Page 255 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 74. PIM-DM Interface Configuration − Edit The following fields can be set: Parameter Description Interface Name Allows the entry of the name of the IP interface for which PIM-DM is to be configured.
Page 256 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide router uses to automatically remove prune information from a branch of a multicast delivery tree and begin to flood multicast messages branches of that delivery tree. These actions equivalent. default is 60 seconds.
Page 257 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide not be able to receive UDP data streams unless the UDP multicast packets were all forwarded to the router port. • 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.
Page 258: Port Mirroring
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 76. Static Router Port Settings − Edit The following fields can be set: Parameter Description VLAN Name Displays the name of the VLAN the static router port belongs to.
Page 259 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 77. Target Port Selection 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.
Page 260 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Direction <Ingress> This field can be toggled between Either, Ingress and Egress. Ingress mirrors only received packets, while Egress mirrors only transmitted packets.
Page 261: Forwarding
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Forwarding MAC Address Aging Time The MAC Address Aging Time specifies the length of time a learned MAC Address will remain in the forwarding table without being accessed (that is, how long a learned MAC Address is allowed to remain idle).
Page 262 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Unicast MAC Address Forwarding MAC addresses can be statically entered into the switch’s MAC Address Forwarding Table. These addresses will never age out. To enter a MAC address into the switch’s forwarding...
Page 263 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide To edit an existing entry in the MAC address in the MAC Address Forwarding Table, click the Edit button: Figure 6 - 81. Unicast MAC Address Settings − Edit The following fields can be set:...
Page 264 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide optional stacking module installed and have properly interconnected the switches in a switch stack. Port Allows the entry of the port number on which the MAC address entered above resides. Multicast MAC Address Forwarding Multicast MAC addresses can be statically entered into the switch’s MAC Address Forwarding Table.
Page 265 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 83. Multicast MAC Address Settings − Add To edit an existing entry to the switch’s forwarding table, click the entry’s corresponding click-box and then click the edit button: Figure 6 - 84. Multicast MAC Address Settings − Edit...
Page 266 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide a member of − when adding a new entry to the table. Displays the VLAN name of the VLAN the MAC address is a member of − when editing an existing entry.
Page 267 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 85. Static/Default Routes To delete an existing static/default route, click corresponding click-box and the click the Delete button. To add a new static/default route, click the New button: Figure 6 - 86. Static/Default Routes – Add...
Page 268 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The following fields can be set: Parameter Description IP Address Allows the entry of an IP address <0.0.0.0> that will be a static entry into the switch’s Routing Table. Subnet Mask Allows the entry of a subnet mask <0.0.0.0>...
Page 269 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide To delete an existing static ARP entry, click corresponding click-box and then click the Delete button. To add a new static ARP entry, click the New button: Figure 6 - 88. Static ARP – Add...
Page 270: Configure Qos (Quality Of Service)
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Configure QOS (Quality of Service) The DES-3326SRSR switch supports 802.1p priority queuing. The switch has 4 priority queues. These priority queues are numbered from 0 — the lowest priority queue — to 3 — the highest priority queue.
Page 271 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide This establishes a Class of Service (CoS) for each of the switch’s four hardware priority queues. The possible range for maximum packets is: 0 to 255 packets. The possible range for maximum latency is: 0 to 255 (in increments of 16 microseconds each).
Page 272 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide MAX. Latency is a priority queue timer. When it expires, it overrides the round-robin and gives the priority queue that it was set for access to the transmit buffer. There is a small amount of additional latency introduced because the priority queue that is transmitting at the time the MAX.
Page 273 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 90. Priority Based on Port This window allows you to assign a default 802.1p priority to any given port on the switch. The priority queues are numbered from 0 − the lowest priority − to 7 − the highest priority.
Page 274 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 91. QOS Class of Traffic Once you have assigned a maximum number of packets and a maximum latency to a given Class of Service on the switch, you can then assign this Class to each of the 8 levels of 802.1p priorities.
Page 275 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 92. QOS Configure Priority Clicking on the New button opens the following window: Figure 6 - 93. QOS Configure Priority − Add The QOS Configure Priority − Add input screen is divided into two parts −...
Page 276 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide actions specified replace_dscp:, priority:, replace_priority: click-boxes will be executed. In addition, you can specify that packets that contain a specific IP or MAC address as their destination, will receive the actions specified by the replace_dscp:, priority:, or replace_priority: click-boxes.
Page 277 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide DSCP − the switch will use the Differentiated Services Code Point information contained incoming packet to determine if the actions specified in the click-boxes will be executed. The value of the DSCP is a number between 0 and 63 −...
Page 278 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide IP address contained in an incoming packet assign packet determine if the actions specified in the click-boxes will be executed. The IP address that will receive the specified priority handling is entered...
Page 279 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide entered. replace_priority replace_priority: click-box instructs the switch to replace the 802.1p value (in a packet that meets the selected criteria). In this way, packets meeting the criteria can have their priority handling modified for...
Page 280: Bandwidth Control
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Bandwidth Control The bandwidth control settings are used to place a ceiling on the transmitting and receiving data bit rates for any port. To change the maximum allowed bandwidth for a given port:...
Page 281: Spanning Tree
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Spanning Tree The switch supports 802.1d STP and 802.1w Rapid STP. The spanning tree commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the following table.
Page 282 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Configure the following parameters and click the Apply button to implement them: Parameter Description This field can be toggled between Status <Disabled> Enabled and Disabled using the pull- down menu. This will enable or disable the Spanning Tree Protocol (STP), globally, for the switch.
Page 283 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide high priority, high probability that this switch will be elected as the root switch. STP Version Choose RSTP (default) <RSTP > Compatibility. Both versions use STP parameters in the same way. RSTP is fully compatible with IEEE 802.1d...
Page 284 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 97. STP Port Settings To change STP settings for a port or a group of ports on the same switch, select the first (lowest numbered) port from the list and click the Edit button, a separate menu will appear.
Page 285 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 98. Edit STP Port Settings In addition to setting Spanning Tree parameters for use on the switch level, the switch 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.
Page 286 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The STP on the switch level blocks redundant links between switches (and similar network devices). The port level STP will block redundant links within an STP Group. It is advisable to define an STP Group to correspond to a VLAN group of ports.
Page 287 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Select True or False. Choosing true Edge <No> designates the port as an edge port. Edge ports cannot create loops, however an edge port can lose edge port status if a topology change creates a potential for a loop.
Page 288: Mac Notification
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide MAC Notification MAC address notification is used to monitor MAC addresses learned and entered into the forwarding database. Global Settings Figure 6 - 99. MAC Notification Global Settings Configure the following MAC notification global settings:...
Page 289 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide MAC Notification Port Settings Enable or disable MAC notification for ports with the menu below. Figure 6 - 100. MAC Notification Port Settings To change MAC Notification settings for a port or a group of...
Page 290 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 101. MAC Notification Port Settings - Edit Configure the following MAC notification global settings: Parameter Description Port Select the port or lowest number of the group of ports being configured.
Page 291: Link Aggregation
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Link Aggregation Link aggregation allows several ports to be grouped together and to act as a single link. This gives a bandwidth that is a multiple of a single link’s bandwidth. Link aggregation is most commonly used to link a bandwidth intensive network device or devices –...
Page 292 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide calculation of port cost and in determining the state of the link aggregation group. If two redundant link aggregation groups are configured on the switch, STP will block one entire group –...
Page 293 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide To add a new multicast MAC address to the switch’s forwarding table, click the New button: Figure 6-87. Link Aggregation − New To edit an existing entry to the switch’s forwarding table, click the entry’s corresponding click-box and then click...
Page 294 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The following fields can be set: Parameter Description Group ID Allows the entry of a number used to identify the link aggregation group − when adding a new group. Displays Group currently selected link aggregation group −...
Page 295: 802.1X Configuration
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide 802.1X Configuration The DES-3326SRSR implements the server-side of the IEEE 802.1x Port-based Network Access Control. This mechanism is intended to allow only authorized users, or other network devices, access to network resources by establishing criteria for each port on the switch that a user or network device must meet before allowing that port to forward or receive frames.
Page 296 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Click the selection button on the far left that corresponds to the port you want to configure and click the Edit button, a separate menu will appear. Figure 6 - 103. 802.1X Port Settings – Edit...
Page 297 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Configure the following 802.1x port settings: Parameter Description Port Port being configured for 802.1x settings. Capability Two role choices can be selected: Authenticator − A user must pass the authentication process to gain access to the network.
Page 298 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide receiving transmitting directions, just receiving direction. Port Control From the pull-down menu, select Force Authorized, Force − Unauthorized Auto Force Authorized forces the Authenticator of the port to become Authorized. Force Unauthorized forces the port to become Unauthorized.
Page 299 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Radius Server Settings Use this menu to configure the settings the switch will use to communicate with a Radius server. To add Radius server settings click the New button, a separate configuration menu appears.
Page 300 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Configure the following Radius server settings: Parameter Description Index Radius server settings index. IP Address Type in the IP address of the Radius server. Type the shared-secret key used by the Radius server and the switch.
Page 301: System Log Server
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide System Log Server The switch can send Syslog messages to up to four designated servers. Use the System Log Server Figure 6 - 107. System Log Server list The parameters configured for adding and editing System Log Server settings are the same.
Page 302 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Parameter Description Index Syslog server settings index (1-4). Server IP Type in the IP address of the Syslog server receiving the message. Severity Select the level of message sent, select: Warning, Information or All.
Page 303: Utilities
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Utilities TFTP Utilities 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...
Page 304 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Select which switch of a switch stack you want to update the firmware on. This allows the selection of a particular switch from a switch stack if you have installed the optional stacking module and have properly interconnected the switches.
Page 305 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 111. Use Configuration File on Server Enter the IP address of the TFTP server and specify the location of the switch configuration file on the TFTP server. Click Apply to record the IP address of the TFTP server. Use...
Page 306 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 112. Save Settings To TFTP Server Enter the IP address of the TFTP server and the path and filename of the settings file on the TFTP server and click Apply.
Page 307 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Enter the IP address of the TFTP server and the path and filename for the history log on the TFTP server. Click Apply to make the changes current. Click Start to initiate the file transfer.
Page 308 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide BOOTP/DHCP Relay BOOTP/DHCP Relay can be configured on both the switch level, or on a per-IP interface level. The BOOTP/DHCP Relay link allows switch-level configuration, BOOTP/DHCP Relay Interface Configurations link allows for configuration on a per-IP interface basis.
Page 309 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The following fields can be set: Parameter Description BOOTP/DHCP This field can be toggled between Relay Status Enabled and Disabled using the pull- <Disabled> down menu. It is used to enable or...
Page 310 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 116. BOOTP/DHCP Relay Interface Configuration To add a new entry, click the New button: Figure 6 - 117. BOOT/DHCP Relay Interface Configuration − Add The following fields can be set:...
Page 311 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide DNS Relay To configure DNS Relay, click on the DNS Relay link: Figure 6 - 118. DNS Relay The following fields can be set: Parameter Description DNS Relay State This field can be toggled between <Disabled>...
Page 312 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide DNSR Relay Cache This can be toggled between Disabled Server Status and Enabled. This determines if a <Disabled> DNS cache will be enabled on the switch. DNS Relay Static This field can be toggled using the...
Page 313 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide To add a new entry to the table, click on the New button: Figure 6 - 120. DNS Relay Static Table Configuration − Add The following fields can be set: Parameter Description...
Page 314: Network Monitoring
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Network Monitoring The SR24i provides extensive network monitoring capabilities that can be viewed from the under Network Monitoring menu. Network monitoring on the switch is divided into Layer 2 and Layer 3 functions, depending upon which operating mode the switch is in.
Page 315 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 121. Port Utilization chart Figure 6 - 122. Port Utilization table...
Page 316 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Select the desired port by clicking on the front panel display. The Update Interval field sets the interval at which the error statistics are updated. The following field can be set: Parameter...
Page 317 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 123. Port Error Packet Statistics window Select the desired port by clicking on the front panel display. The Update Interval field sets the interval at which the error statistics are updated.
Page 318 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Update Interval The interval (in seconds) that the table <Suspend> is updated. The default is Suspend. RX Frames Received packets. CRC Error For 10 Mbps ports, the counter records CRC errors (FCS or alignment errors).
Page 319 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide resources. TX Frames Transmitted packets. Excessive Deferral The number of frames for which the first transmission attempt particular interface delayed because the medium was busy. CRC Error For 10 Mbps ports, the counter records CRC errors (FCS or alignment errors).
Page 320 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Port Packet Analysis The Port Packet Analysis window displays the size of packets received or transmitted by a given switch port. In addition, statistics on the number and rate of unicast, multicast, and broadcast packets received by the switch are displayed.
Page 321 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide received or transmitted by the switch with the size, in octets, given by the column on the right. Frames/sec The number of packets (or frames) transmitted or received, per second, by the switch.
Page 322 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide (Total/sec). MAC Address Table This allows the switch’s dynamic MAC address forwarding table to be viewed. When the switch learns an association between a MAC address and a port number, it makes an entry into its forwarding table.
Page 323 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide IP Address Table To view the contents of the IP Routing table, click on the IP Address Table link: Figure 6 - 126. IP Address Table...
Page 324 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The following fields are displayed: Parameter Description Destination IP address of a learned or statically Address entered destination. Mask Displays subnet mask corresponding above destination IP address. Gateway Displays the default or next hop gateway to reach the destination.
Page 325 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Routing Table To view the switch’s routing table, click the Routing Table link: Figure 6 - 127. Routing Table Parameter Description IP Address The IP address of the router. Netmask The subnet mask corresponding to the IP address above.
Page 326 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Protocol The routing protocol in use by this router. ARP Table To view the switch’s ARP table, click on the ARP Table link:...
Page 327 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 128. ARP Table...
Page 328 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide OSPF Link State Database Table The switch maintains two OSPF Link State Databases (LSDB) − Internal and External. The Internal LSDB describes the Link State Advertisements (LSA) for OSPF Antonymous Systems (AS). The External LSDB describes the LSAa for those ASs not belonging to OSPF.
Page 329 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide The following fields can be set or are displayed: Parameter Description Area ID Displays the OSPF Area ID. LSDB Type Displays which one of four types of link advertisements by which the current link −...
Page 330 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide OSPF Neighbor Table Figure 6 - 130. OSPF Neighbor Table The following fields are displayed. Parameter Description Neighbor ID The router ID of a neighboring router. IP Address The IP address of the neighboring router.
Page 331 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide OSPF Virtual Neighbor Table Figure 6 - 131. OSPF Virtual Neighbor Table The following fields can be set or are displayed. Parameter Description Transit Area The area ID of the transit area that the virtual link resides on.
Page 332 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide DVMRP Routing Table To view the DVMRP routing table, click on the DVMRP Routing Table link: Figure 6 - 132. DVMRP Routing Table The Source Address and Source Mask fields allow the entry of an IP address and corresponding subnet mask to search the table for.
Page 333 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide (learned) or not. Interface The name of the IP interface the router Name resides on. Expire The total number of routers that the packets can cross. DVMRP Neighbor Address Table To view the DVMRP neighbor address table, click on the DVMRP Neighbor Address Table link: Figure 6 - 133.
Page 334 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide DVMRP Next Hop Table To view the DVMRP next hop table, click on the DVMRP Next Hop Table link: Figure 6 - 134. DVMRP Next Hop Table The following fields are displayed.
Page 335 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide branch. GVRP Status This allows the GVRP status for each of the switch’s ports to be viewed by VLAN. The GVRP status screen displays the ports on the switch that are currently Egress or Untagged ports.
Page 336 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Router Ports This displays which of the switch’s ports are currently configured as router ports. A router port configured by a user (using the console or Web-based management interfaces) is displayed as a static router port, designated by S. A router port...
Page 337 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide IGMP Snooping Status This allows the switch’s IGMP Snooping table to be viewed. IGMP Snooping allows the switch to read the Multicast Group IP address and the corresponding MAC address from IGMP packets that pass through the switch.
Page 338 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide MAC Address The MAC address of the multicast group. Port Map These are the ports where the IGMP packets were snooped are displayed, Reports The total number of reports received for this group.
Page 339 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Multicast The IP address of the multicast group. Group Port Map These are the ports where the IGMP packets were snooped are displayed, IP Multicast Forwarding Table To view the switch’s IP multicast forwarding table, click on the IP Multicast Forwarding Table link: Figure 6 - 139.
Page 340 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Source Mask The subnet mask corresponding to the IP address above. Upstream The IP address of the next router on the Neighbor path from the switch to the multicast source. Expire Time The number of hops (routers) the packets are allowed to cross.
Page 341 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Multicast The IP address of the multicast group. Group Last Reporter The IP address of the last IGMP report sender. Querier IP The IP address of the IGMP querier. Expire The total number of hops (routers) packets are allowed to cross.
Page 342 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Next Hop The IP address of the next hop router. Router The number of hops (routers) that are between the switch and the listed router. Learned Indicates whether this entry is dynamic (learned) or not.
Page 343 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide Figure 6 - 142. Switch History...
Page 344: Technical Specifications
DES-3326SR Layer 3 Fast 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 802.3ab 1000BASE-T Gigabit Ethernet IEEE 802.1 P/Q VLAN IEEE 802.3x Full-duplex Flow Control ANSI/IEEE 802.3 Nway auto-negotiation...
Page 345 DES-3326SR Layer 3 Fast 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...
Page 346 DES-3326SR Layer 3 Fast 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 EN55024, C- Tick (AS/NZS3548, BSMI (CNS 13438)
Page 347: Brief Review Of Bitwise Logical Operations
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide RIEF EVIEW OF ITWISE OGICAL PERATIONS The logical operation compares 2 bits and if they are both “ then the result is otherwise, the result is 1”, “1”, “0”. The logical operation compares 2 bits and if either or both...
Page 348 The logical NOT operation simply changes the value of a single bit. If it is a the result is if it is a the result is This “1”, “0”, “0”, “1”. operation is carried out on a single bit.
Page 349: Index
DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide NDEX...
Page 350 Egress port ....47 AC inputs..... 330 End Node....... 23 AC power cord ....7 Ethernet protocol..... 6 Accessory pack ....7 Aging Time, definition of. 40 Aging Time, range of ..40 Filtering......40 Auto polarity detection ..3 Flash memory....
Page 351 DES-3326SR Layer 3 Fast Ethernet Switch User’s Guide MIB........ 39 Spanning Tree Protocol.. 41 MIB objects....38 Storage Temperature ... 330 MIB-II ......38 Store and forward MIB-II (RFC 1213).... 5 switching ...... 3 module....... 2, 12 Subnet Mask ....160 Modules ......
Page 352 web-based management ......... 140 Weight ......331...
Page 354 Ontario, L6H 5W1 Canada TEL: 1-905-829-5033 FAX: 1-905-829-5223 BBS: 1-965-279-8732 FTP: ftp.dlinknet.com TOLL FREE: 1-800-354-6522 URL: www.dlink.ca E-MAIL: techsup@dlink.ca Chile D-Link South America (Sudamérica) Isidora Goyenechea 2934 Oficina 702, Las Condes, Santiago, Chile TEL: 56-2-232-3185 FAX: 56-2-232-0923 URL: www.dlink.com.cl China...
Page 355 78330 Fontenay-le-Fleury, France TEL: 33-1-3023-8688 FAX: 33-1-3023-8689 URL: www.dlink-france.fr E-MAIL: info@dlink-france.fr Germany D-Link Central Europe (D-Link Deutschland GmbH) Schwalbacher Strasse 74, D-65760 Eschborn, Germany TEL: 49-6196-77990 FAX: 49-6196-7799300 BBS: 49-(0) 6192-971199 (analog) & BBS: 49-(0) 6192- 971198 (ISDN) INFO: 00800-7250-0000 (toll free) & HELP: 00800-7250- 4000 (toll free) REPAIR: 00800-7250-8000 &...
Page 356 102-106 Witch-Hazel Avenue Highveld Technopark Centurion, Gauteng, Republic of South Africa TEL: +27-12-665-2165 FAX: +27-12-665-2186 URL: www.d-link.co.za E-MAIL: attie@d-link.co.za Spain D-Link Iberia S.L. Sabino de Arana, 56 bajos, 08028 Barcelona, Spain TEL: 34 93 409 0770 FAX: 34 93 491 0795 URL: www.dlink.es E-MAIL: info@dlink.es...
Page 357 FAX: (Jebel Ali): 971-4-883-4394 & (Dubai): 971-4-335- 2464 E-MAIL: dlinkme@dlink-me.com & support@dlink-me.com U.K. D-Link Europe (United Kingdom) Ltd Floor, Merit House, Edgware Road, Colindale, London NW9 5AB United Kingdom TEL: 44-020-8731-5555 SALES: 44-020-8731-5550 FAX: 44-020-8731-5511 SALES: 44-020-8731-5551 BBS: 44 (0) 181-235-5511 URL: www.dlink.co.uk E-MAIL: info@dlink.co.uk...
Page 358 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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