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Planet Networking & Communication WGS3-2620 User Manual

Layer 3 gigabit ethernet switch
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Layer 3 Gigabit Ethernet Switch
24+2G - WGS3-2620
4G+4slot – WGS3-404
User's Manual

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Summary of Contents for Planet Networking & Communication WGS3-2620

  • Page 1 Layer 3 Gigabit Ethernet Switch 24+2G - WGS3-2620 4G+4slot – WGS3-404 User’s Manual...
  • Page 2 Trademarks Copyright (c) PLANET Technology Corp. 2002. PLANET is a registered trademark of PLANET Technology Corp. All other trademarks belong to their respective owners. Contents subject to revision without prior notice. Disclaimer Information furnished is believed to be accurate and reliable. However, no responsibility is assumed by for its use, nor for any infringements of patents or other rights of third parties, which may result from its use.
  • Page 3 If you suspect this equipment is causing interference, turn your Ethernet Switch on and off while your radio or TV is showing interference, if the interference disappears when you turn your Ethernet Switch off and reappears when you turn it back on, there is interference being caused by the Ethernet Switch.

  • Page 4: Table Of Contents

    2.2.2 Front Panel of WGS3-404 ... 5 2.2.2.1 Front Panel Description ...5 2.2.2.2 Port Description ...6 2.2.2.3 LED Definition...6 2.2.3 Rear Panel of WGS3-2620 and WGS3-404 ... 6 2.2.4 Module Hardware Description ... 7 2.2.4.1 Panel Description ...7 2.2.4.2 WGSW-C1GT LED Definition ...7 2.2.4.3 WGSW-C1SX LED Definition ...8...
  • Page 5 4.6.6.5.4 Displaying the Virtual Neighbor Table ...128 4.7 R ... 130 ESETTING THE YSTEM 4.8 L OGGING FF THE YSTEM CHAPTER 5. WEB INTERFACE ... 132 5.1 W ASED ONFIGURATION AND WGS3 Layer 3 Switch User’s Manual ... 131 ... 132 ONITORING...
  • Page 6 5.5.2.2 WGS3-404...144 5.6 M ANAGEMENT ETUP 5.6.1 Changing the Network Configuration ( Layer 2 Mode of WGS3-2620) ... 146 5.6.2 Assigning SNMP Parameters ... 149 5.6.2.1 Configuring Community Names...149 5.6.2.2 Configuring IP Trap Managers...150 5.6.3 User Login Configuration ... 151 5.6.3.1 Displaying the Current User Configuration ...151...
  • Page 7 6.8 SNMP M ANAGEMENT OFTWARE 6.9 R (RMON) ... 248 EMOTE ONITORING APPENDIX A TROUBLESHOOTING... 249 A.1 T ROUBLESHOOTING HART A.2 U PGRADING IRMWARE VIA THE WGS3 Layer 3 Switch User’s Manual ... 245 UPPORT ... 248 ... 249 ... 250 ERIAL...
  • Page 8 APPENDIX B PIN ASSIGNMENTS ... 252 ONSOLE SSIGNMENTS DB-9 P SSIGNMENTS COM P ONSOLE ORT TO 25-P DCE P ONSOLE ORT TO GLOSSARY... 256 WGS3 Layer 3 Switch User’s Manual ... 252 ... 253 PC... 253 ORT ON ... 255 ORT ON ODEM...

  • Page 9: Chapter 1. Introduction

    Both WGS3-404 and WGS3-2620 are IP-based Layer 3 Gigabit Ethernet Switch. WGS3-404 is with 4-port 10/100/1000Mbps and 4-slot for 1000Base-T and 1000Base-SX modules. WGS3-2620 is with 24-port 10/100Mbps and 2-port 1000Mbps switches. The 2 and four RJ-45 gigabit copper ports support 10/100/1000Mbps auto-MDI/MDI-X detection that can directly connect to any Gigabit Ethernet Servers, Switches, L3 backbone with a straight Category 5/5e, 8-wire UTP cable.

  • Page 10: Specification

    1.2 Specification HARDWARE SPECIFICATIONS Product IP Layer 3 10/100/1000Mbps Routing Switch Model WGS3-2620 100Base-TX Ports 1000Base-T Ports Module Slot LED for system Power, SNMP, Console, Fan LED indicators for Two per port; Link, Mode (Modes 100Base-TX include FDX, ACT, Speed)
  • Page 11 RFC 2236 IGMPv2 DVMRP Environment Specification Power 65 watts / 220 BTU Consumption AC Power 100~240V AC, 50/60Hz auto-sensing Temperature 0~40 degree C operating Humidity 10~90% non-condensing Emission FCC Class A, CE mark WGS3 Layer 3 Switch User’s Manual - 3 -...

  • Page 12: Chapter 2. Installing The Switch

    2.2 Description of Hardware 2.2.1 Front Panel of WGS3-2620 The front panel of the Switch has 24 RJ-45 ports for 10/100 Mbps in the middle. The port status LEDs are indicated at the left. The 1000Base-T ports are situated at the right.

  • Page 13: Led Definition

    LEDs are indicated at the left. The expansion modules are situated at the right. 2.2.2.1 Front Panel Description LEDs System LEDs 10/100/1000 Mbps ports WGS3 Layer 3 Switch User’s Manual Indication Switch is receiving power. SNMP agent operational. RS-232 Console interface is operating...

  • Page 14: Port Description

    C, the buzzer will sound. You can press the buzzer On/Off button to turn off the buzzer. 2.2.3 Rear Panel of WGS3-2620 and WGS3-404 The rear panel of WGS3-2620 and WGS3-404 has a power connector, a Buzzer button and a console port. The following picture shows their rear panel.

  • Page 15: Module Hardware Description

    WGSW-C1GT Module Status LEDs 2.2.4.2 WGSW-C1GT LED Definition Color Function 1000 Green Lights to indicate that the Switch is sending or receiving data at 1000 Mbps. Green Lights to indicate that the Switch is sending or receiving data at 100 Mbps. Yellow Lights to indicate that the Switch is sending or receiving data at 10 Mbps.

  • Page 16: Wgsw-C1Sx Led Definition

    • Power requirements: 100 to 240 V AC (+/-10%) at 50 to 60 Hz (+/-3Hz). The switch's power supply automatically adjusts to the input voltage level. • The switch should be located in a cool dry place, with at least 10 cm. (4 in.) of space on the sides for ventilation.

  • Page 17: Making A Connection To An Rj-45 Port

    2.5 Powering On the Switch Plug the power cord into the power socket on the rear of the switch, and the other end into a power outlet. Check the LED marked PWR on the front panel to see if it is on. The unit will automatically select the setting that matches the connected input voltage.

  • Page 18: Verifying System Operation

    Verify that all attached devices have a valid connection. The switch monitors the link status for each port. If any device is properly connected to the switch and transmitting a link beat signal, the Link indicator will light up for the corresponding port. If the Link indicator fails to light when you connect a device to the switch, check the following items: Be sure all network cables and connectors are properly attached to the connected device and the switch.

  • Page 19: Chapter 3. Switch Management

    Attach a VT100 compatible terminal or a PC running a terminal emulation program to the serial port on the switch’ s rear panel. Use the null-modem cable provided with this package, or use a null modem connection that complies with the wiring assignments shown in Appendix B of this manual.

  • Page 20: In-Band Connections

    3.2.2 In-Band Connections Prior to accessing the switch’ s on-board agent via a network connection, you must first configure it with a valid IP address, subnet mask, and default gateway (for Layer 2 mode) using an out-of-band connection. After configuring the switch’ s IP parameters, you can access the on-board configuration program from anywhere within the attached network.

  • Page 21: Chapter 4. Console Interface

    NOTE: You are allowed three attempts to enter the correct password; on the third failed attempt the current connection is terminated. After you enter the user name and password, you will have access to the system configuration program illustrated by the following menu map: WGS3 Layer 3 Switch User’s Manual - 13 -...
  • Page 22 IP Multicast Registration Table System Restart Menu Exit 1. Displayed for layer 2 mode of WGS3-2620 only. 2. Displayed for multilayer mode of WGS3-2620 and WGS3-404 only 3. Displayed for WGS3-2620 only 4. Displayed for WGS3-404 only WGS3 Layer 3 Switch User’s Manual...

  • Page 23: Main Menu

    With the system configuration program you can define system parameters, manage and control the switch and all its ports, or monitor network conditions. The figure below of the Main Menu and the following table briefly describe the selections available from this program.
  • Page 24 Exits the configuration program. *1: Only displays on WGS3-2620 when it is set to Layer 2 mode. *2. Only displays on WGS3-404 and WGS3-2620 when it is set to multilayer mode. *3. Only displays on WGS3-2620 *4. Only displays on WGS3-404 WGS3 Layer 3 Switch User’s Manual...

  • Page 25: System Information Menu

    4.3 System Information Menu Use the System Information Menu to display a basic description of the switch, including contact information, and hardware/firmware versions. Menu Description System Information Provides basic system description, including contact information. Switch Information Shows hardware/firmware version numbers, power status, and expansion modules used in the switch.

  • Page 26: Displaying System Information

    4.3.1 Displaying System Information Use the System Information screen to display descriptive information about the switch, or for quick system identification as shown in the following figure and table. Parameter Description System Description System hardware description. System Object ID MIB II object identifier for switch’ s network management subsystem.

  • Page 27: Displaying Switch Version Information

    4.3.2 Displaying Switch Version Information Use the Switch Information screen to display hardware/firmware version numbers for the main board, as well as the fan power status. 4.3.2.1 Switch Information of WGS3-2620 Parameter Description Hardware Version Hardware version of the main board.

  • Page 28: Switch Information Of Wgs3-404

    System firmware version in ROM. Serial Number The serial number (MAC address) of the main board. Port Number Number of ports on this switch. Packet Memory Size Shows memory size for packet buffer. It is always 6M bytes. WGS3 Layer 3 Switch User’s Manual...

  • Page 29: Management Setup Menu

    Download the configuration to a file or upload the configuration file to the switch. *1: Only displays on WGS3-2620 when it is set to Layer 2 mode. WGS3 Layer 3 Switch User’s Manual , Ping facility, and HTTP (Web agent) setup.

  • Page 30: Changing The Network Configuration

    Screen used to enable the Web agent. * This menu does not appear on WGS3-404 or if the WGS3-2620 is set to multilayer mode. In this case, you need to configure an IP interface for each VLAN that needs to connect to any device outside of its own VLAN group.

  • Page 31: Ip Configuration (Layer 2 Mode)

    4.4.1.1 IP Configuration (Layer 2 Mode) Use the IP Configuration screen to set the boot-up option, or configure the switch’s IP parameters. The screen shown below is described in the following table. WGS3 Layer 3 Switch User’s Manual - 23 -...
  • Page 32 Anything outside of this format will not be accepted by the configuration program. Subnet Mask Subnet mask of the switch. This mask identifies the host address bits used for routing to specific subnets. Default Gateway Gateway used to pass trap messages from the system’ s agent to the management station.

  • Page 33: Ip Connectivity Test (Ping)

    The number of ICMP echo requests to send to the specified site. Range: 1~1000 Success / Failure The number of times the specified site has responded or not to pinging. NOTE: The switch waits up to 10 seconds for a response to each ping. WGS3 Layer 3 Switch User’s Manual - 25 -...

  • Page 34: Http Configuration

    4.4.1.3 HTTP Configuration Use the HTTP Configuration screen to enable/disable the on-board Web agent. NOTE: Port 80 is used for HTTP service. WGS3 Layer 3 Switch User’s Manual - 26 -...

  • Page 35: Configuring The Serial Port

    You can access the on-board configuration program by attaching a VT100 compatible device to the switch’s serial port. (For more information on connecting to this port, see “Required Connections” on Section 3.2) The communication parameters for this port can be accessed from the Serial Port Configuration screen shown below and described in the following table.
  • Page 36 Parity None Time-Out Auto Refresh 10 second WGS3 Layer 3 Switch User’s Manual Description Indicates that the port settings are for direct console connection. The rate at which data is sent between devices. Options : 9600, 19200 and 38400 baud.

  • Page 37: Assigning Snmp Parameters

    Network Management Station (NMS), can be used to access this information. Access rights to the on-board agent are controlled by community strings. To communicate with the switch, the NMS must first submit a valid community string for authentication. The options for configuring community strings and related trap functions are described in the following sections.

  • Page 38: Configuring Community Names

    Access Management access is restricted to Read Only or Read/ Write. Status Sets administrative status of entry to enabled or disabled. NOTE: The default community strings are displayed on the screen. WGS3 Layer 3 Switch User’s Manual - 30 -...

  • Page 39: Configuring Ip Trap Managers

    4.4.3.2 Configuring IP Trap Managers The following figure and table describe how to specify management stations that will receive authentication failure messages or other trap messages from the switch. Up to 5 trap managers may be entered. Parameter Description IP Address IP address of the trap manager.

  • Page 40: User Login Configuration

    The parameters shown on this screen are indicated in the following figure and table. Parameter Description User Name Specifies a user authorized management access to the switch via the console, Telnet or HTTP. Access Right There are two options. ADMIN: Read/Write for all screens. GUEST: Read Only for all screens.
  • Page 41 To add a new user, select <Add>. When you add a user, the following screen is displayed. Parameter Description User Name* Specifies a user authorized management access to the switch via the console, Telnet or HTTP. Password* Passwords can consist of up to 11 alphanumeric characters and are not case sensitive.

  • Page 42: Downloading System Software

    4.4.5 Downloading System Software Use the TFTP Download menu to load software updates to permanent flash ROM in the switch. The download file should be a 3 binary file or image file; otherwise the agent will not accept it. The success of the download operation depends on the accessibility of the TFTP server and the quality of the network connection.

  • Page 43: Saving Or Restoring The System Configuration

    4.4.6 Saving or Restoring the System Configuration Use the Configuration File menu to save the switch configuration settings to a file on a TFTP client. The file can be later downloaded to the switch to restore the switch’s settings. The success of the operation depends on the accessibility of the TFTP client and the quality of the network connection.
  • Page 44 Switch.” Then select <Start> from the menu to start. On TFTP Client: Set the mode to <binary>, specify the IP address of the target switch and the directory path / name of the file to transfer. Then start transferring the configuration from the TFTP client or the switch and wait until the transfer completes.

  • Page 45: Device Control Menu

    Each of the setup screens provided by these configuration menus is described in the following sections. Menu Description System Mode Sets the switch to operate as a Layer 2 switch or as a multilayer routing switch. Layer 2 Menu Configures port communication mode, mirror ports, and port trunking. Bridge Menu...

  • Page 46: Setting The System Operation Mode

    4.5.1 Setting the System Operation Mode WGS3-2620 can be set to operate as a Layer 2 switch, making all filtering and forwarding decisions based strictly on MAC addresses. Or it can be set to operate as a multilayer routing switch, whereby it switches packets for all non-IP protocols (such as NetBUEI, NetWare or AppleTalk) based on MAC addresses, and routes all IP packets based on the specified routing protocol.

  • Page 47: Layer 2 Menu

    Static Unicast Address Configuration Static Multicast Address Configuration WGS3 Layer 3 Switch User’s Manual Description Enables any port, enables/disables flow control, and sets communication mode to auto-negotiation, full duplex or half duplex. Sets the source and target ports for mirroring.

  • Page 48: Configuring Port Parameters

    4.5.2.1 Configuring Port Parameters Use the Port Configuration menu to display or set communication parameters for any port on the switch, including administrative status, auto-negotiation, default communication speed and duplex mode, as well as flow control in use. Parameter Default...

  • Page 49: Using A Mirror Port For Analysis

    The port that will duplicate the transmitted or received traffic appearing on the mirrored port. NOTE: You can mirror multiple ports to a single port to view traffic on WGS3-2620. However, note that some packets may be dropped for moderate to heavy loading.

  • Page 50: Configuring Port Trunks

    Trunking Configuration menu to specify the trunk on the devices at both ends. When using a port trunk, remember that:: • The ports that can be assigned to the same trunk on WGS3-2620 are listed below: Two ports as a trunk <<13, 01>>...
  • Page 51 This allows the traffic passing across that link to be automatically distributed to the other links in the trunk, without losing any significant amount of traffic. WGS3 Layer 3 Switch User’s Manual - 43 -...

  • Page 52: Configuring The Static Unicast Address Table

    The Static Unicast Address Table can be used to assign the MAC address for a host device to a specific port on this switch. Static unicast addresses are never aged out, and cannot be learned on another port. If any packets with a source address specified in this table enter another port, they will be dropped. The Static Unicast Address Table is described in the following figure and table.

  • Page 53: Configuring The Static Multicast Address Table

    Enter. To scroll through the address table, use the <Next Page> and <Prev Page> buttons. To display a specific page, set the page number in the Page field and then press <Apply>. WGS3 Layer 3 Switch User’s Manual - 45 -...

  • Page 54: Using The Bridge Menu

    This allows the switch to interact with other bridging devices (that is, an STA-compliant switch, bridge or router) in your network to ensure that only one route exists between any two stations on the network, and provide backup links that automatically take over when a primary link goes down.

  • Page 55: Configuring Global Bridge Settings

    Spanning Tree Enabled Bridge Priority 32,768 Hello Time WGS3 Layer 3 Switch User’s Manual Description Enable this parameter to participate in a STA compliant network. Bridge priority is used in selecting the root device, root port, and designated port. The device with the highest priority becomes the STA root device.
  • Page 56 GVRP for a specific port. See “4.5.4.1 VLAN Port Configuration”. WGS3-2620 supports Quality of Service (QoS) by using two priority queues, with Weighted Fair Queuing for each port. Up to 8 separate traffic classes are defined in IEEE 802.1p. So any packets with a priority equal to or higher than this threshold are placed in the high priority queue.
  • Page 57 High/Medium/ 6/4/2 Low Priority Aging Time 1: Only displayed on WGS3-2620. 2: Only displayed on WGS3-404 WGS3 Layer 3 Switch User’s Manual WGS3-404 supports Quality of Service (QoS) by using four priority queues (High, Medium, Low and Lowest), with Weighted Fair Queuing for each port.

  • Page 58: Configuring Sta For Ports

    4.5.3.2 Configuring STA for Ports The following figure and table describe port STA configuration. WGS3 Layer 3 Switch User’s Manual - 50 -...
  • Page 59 Defines the priority for the use of a port in the STA algorithm. If the path cost for all ports on a switch are the same, the port with the highest priority (that is, lowest value) will be configured as an active link in the Spanning Tree.

  • Page 60: Configuring Virtual Lans

    4.5.4 Configuring Virtual LANs You can use the VLAN configuration menu to assign any port on the switch to any of up to 256 Virtual LAN groups. In conventional networks with routers, broadcast traffic is split up into separate domains.
  • Page 61 Tx Untag: Sends only untagged frames. 2: The switch supports Quality of Service (QoS) by using two or four priority queues, with Weighted Fair Queuing for each port. Inbound frames that do not have VLAN tags are tagged with the input port’ s default ingress user priority, and then placed in the appropriate priority queue at the output port.
  • Page 62 VLAN-aware), and configure an IP interface for this VLAN if you need to connect it to other group. This parameter is for WGS3-2620 only. WGS3-404’s default setting is Rx All and use VLAN Table Configuration for Tx.

  • Page 63: Vlan Table Configuration

    4.5.4.2 VLAN Table Configuration Use this screen to create a new VLAN or modify the settings for an existing VLAN. The VLAN Table Configuration of WGS3-2620 and WGS3-404 are slightly different. For WGS3-2620, the VLAN Table Configuration is as the following:...
  • Page 64 Specify the outbound packets for this VLAN on this port should be tagged or untagged. U: The outbound packets for this VLAN on this port should be untagged. T: The outbound packets for this VLAN on this port should be tagged. WGS3 Layer 3 Switch User’s Manual - 56 -...

  • Page 65: Reset Address Table Mode

    VLANs. If a given individual MAC Address is learned in one VLAN, that learned information is not used in forwarding decisions taken for that address relative to any other VLAN. IVL is suitable when two or more VLANs are connected by a bridge(switch) or there are duplicate MAC addresses on different VLANs.

  • Page 66: Configuring Igmp Snooping

    4.5.5 Configuring IGMP Snooping This option is displayed on Device Control Menu for Layer 2 mode of WGS3-2620 and on Protocol Configuration Menu ( under Device Control Menu -> IP Menu) for Layer 3 mode of WGS3-2620 or WGS3-404. Multicasting is used to support real-time applications such as video conferencing or streaming audio.
  • Page 67 Disabled Querier 1: This item is only displayed for Layer 2 mode of WGS3-2620. For WGS3-404 and multilayer mode of WGS3-2620, the full IGMP protocol set is automatically enabled/disabled along with DVMRP. (See “6.4 Multicast Filtering” and “4.5.6.1.5 Configuring DVMRP”.) 2: This item is only displayed for Layer 2 mode of WGS3-2620.

  • Page 68: Configuring Ip Settings

    4.5.6 Configuring IP Settings If this switch is WGS3-404 or WGS3-2620 in multilayer mode(see WGS3 Layer 3 Switch User’s Manual - 60 -...
  • Page 69 4.5.1 Setting the System Operation Mode), the IP Menu will be displayed. Use this menu to configure the IP subnets for each VLAN on your switch, the unicast and multicast routing protocols, static ARP entries, static IP routes, and the default IP Route.

  • Page 70: Subnet Configuration

    (that is, another network segment). You also need to define a VLAN for each IP subnet connected directly to this switch. Note that you must first create a VLAN as described under “Configuring Virtual LANs” before configuring the corresponding subnet. If you need to manage the switch in-band then you must define the IP subnet address for at least one VLAN.

  • Page 71: Adding An Ip Interface

    VLAN group to this interface, configure the IP address, and then enable the required routing protocols. You can specify a VLAN that has already been configured on this switch or press “Select” to open the Port Group Configuration screen and create or modify a VLAN group.
  • Page 72 (See “6.2.5 Proxy ARP”.) Note that Proxy ARP must be enabled globally for the switch before this setting can take effect. (See “4.5.6.2 Protocol Configuration”.) Routing Information Protocol for unicast routing.

  • Page 73: Configuring Port Groups

    Add Subnet screen. Parameter Description VLAN A VLAN already configured on this switch. Port Port entries may be marked as: S : Adds port as a static entry. P : Adds port as a static entry, and sets the port’ s PVID to this VLAN ID.

  • Page 74: Modifying An Ip Interface

    Enter. The Modify Subnet screen is nearly the same as the Add Subnet screen. However, it also includes an “Advanced” option that allows you to configure the unicast and multicast routing protocols as described in the following sections. WGS3 Layer 3 Switch User’s Manual - 66 -...

  • Page 75: Configuring Rip

    “RIP and RIP-2 Dynamic Routing Protocols” on Chapter “Advanced Topics”.) When RIP is enabled on this routing switch, it broadcasts RIP messages to all devices in the network every 30 seconds, and updates its own routing table when RIP messages are received from other routers. RIP messages contain both the IP address and a metric for each destination network it knows about, where the metric indicates the number of hops from this device to the destination network.
  • Page 76 NOTE: This is a method of preventing routing information from looping back to the source. Note that Split Horizon is also enabled on this switch for this purpose. (See “6.2.6.1 RIP and RIP-2 Dynamic Routing Protocols”.) WGS3 Layer 3 Switch User’s Manual...

  • Page 77: Configuring Ospf

    A 32-bit integer uniquely identifying an OSPF protocol broadcast area This identifier can be in the form of an IP address or integer. Each port on the switch can be configured to represent one OSPF area. You must first specify OSPF areas for global access in the Area ID Configuration menu, before they can be used for a specific IP interface.
  • Page 78 120 seconds Sets the poll interval (in seconds) for this interface. If a neighboring Authentication Type NONE Authentication Key WGS3 Layer 3 Switch User’s Manual The estimated number of seconds it takes to transmit a link state update packet over this interface.
  • Page 79 2: This value must be the same for all routers attached to a common network. WGS3 Layer 3 Switch User’s Manual When use MD5 authentication mode, you have to specify an active MD5 key on this table.

  • Page 80: Configuring Dvmrp

    Metrics 1 hop This value is used to select the best reverse path to networks that are connected directly to an interface on this switch. Range: 1-31 hops Probe Interval 10 seconds The interval between sending neighbor probe messages to the multicast group address for all DVMRP routers.

  • Page 81: Protocol Configuration

    (See “6.2.5 Proxy ARP”.) If Proxy ARP is globally enabled for the switch, then you can enable or disable it for a specific interface. See “4.5.6.1.1 Adding an IP Interface”, or “4.5.6.1.3 Modifying an IP Interface”.
  • Page 82 Enables or disables the Distance-Vector Multicast Routing Protocol. NOTE: Once RIP and DVMRP have been globally enabled, you can enable or disable them for any specific subnet via the Subnet Configuration menu. WGS3 Layer 3 Switch User’s Manual - 74 -...

  • Page 83: Setting The Arp Timeout

    You can use the following configuration screen to modify the aging time for dynamically learned entries in the ARP cache. Parameter Default Description ARP Timeout 20 minutes The time that dynamically learned entries are retained in the ARP cache. Range: 0-999 minutes, where 0 disables aging WGS3 Layer 3 Switch User’s Manual - 75 -...

  • Page 84: Setting The Rip Advertisement Policy

    Range: 0-999 seconds, where 0 disables route advertisements Enables or disables advertising this switch as a default router. Enables or disables advertisement of static routes. If enabled, the switch will not import a default route from other routers. - 76 -...

  • Page 85: Configuring Global Settings For Ospf

    OSPF routers that actively exchange Link State Advertisements (LSAs). You can then define an OSPF interface by assigning an IP interface configured on this switch to one of these groups. This OSPF interface will send and receive OSPF traffic to neighboring OSPF routers. You can further optimize the exchange of OSPF traffic by specifying an area range that covers a large number of subnetwork addresses.
  • Page 86 Range Configuration OSPF Virtual Link Configuration WGS3 Layer 3 Switch User’s Manual Description STATIC: User can manual configure the Router ID. STATIC INTF: The VLAN 1 IP address will be used as Router ID ACTIVE INTF: The first active interface will be used as Router ID A 32-bit number assigned to each router running the OSPF protocol.

  • Page 87: Ospf Area Configuration

    You can configure the area as a normal one which can send and receive external Link State Advertisements (LSAs), a stubby area that cannot send or receive external LSAs, or a not-so-stubby area (NSSA) that can import external route information into its area. WGS3 Layer 3 Switch User’s Manual - 79 -...
  • Page 88 NOTE: To add a new Area ID, use the <Add> button. (The default 0.0.0.0 indicates the OSPF backbone.) To modify or delete an existing Area ID, highlight the table entry with the cursor and select Enter. WGS3 Layer 3 Switch User’s Manual - 80 -...

  • Page 89: Ospf Area Range Configuration

    Enables or disables advertising for this range. NOTE: To add a new OSPF Area Range, use the <Add> button. To delete an existing range, highlight the table entry with the cursor and select Enter. WGS3 Layer 3 Switch User’s Manual - 81 -...

  • Page 90: Ospf Virtual Link Configuration

    Parameter Description Area ID An identifier for the transit area the virtual link crosses Neighbor IP The IP address of the OSPF router on this end of the virtual link. WGS3 Layer 3 Switch User’s Manual - 82 -...
  • Page 91 Authentication None Type Authentication WGS3 Layer 3 Switch User’s Manual Description An identifier for the transit area the virtual link crosses. The IP address of the OSPF router on this end of the virtual link. The estimated number of seconds it takes to transmit a link state update packet over this virtual link.

  • Page 92: Configuring Dhcp Relay

    4.5.6.2.4 Configuring DHCP Relay If a DHCP server is not located in the same subnet with a host, you can configure this switch to forward any host configuration queries to a server located on another subnet or on another network. Depending on the configuration setup, the switch either: •...

  • Page 93: Static Arp Configuration

    4.5.6.3 Static ARP Configuration Use the following screen to display or edit entries in the Static ARP Table. Entries added to this table are retained until the associated IP interface is deleted or the switch is reset to the factory defaults. Parameter...

  • Page 94: Static Route Configuration

    4.5.6.4 Static Route Configuration This switch can be configured to dynamically learn the routes to other IP networks, subnets or hosts using unicast or multicast routing protocols. If the route to a specific destination cannot be learned via these protocols or you wish to restrict the path used for transmitting traffic to a destination, then it can be statically configured using the Static Route Table.
  • Page 95 The following screen is displayed for modifying or adding a static route. You must provide route information as described in the preceding table, plus the routing metric used to indicate the number of hops to the destination network. WGS3 Layer 3 Switch User’s Manual - 87 -...

  • Page 96: Configuring The Default Route

    4.5.6.5 Configuring the Default Route Defines the router to which this switch will forward all traffic for unknown networks. The default route can be learned from RIP protocol (See “4.5.6.1.4 Configuring RIP”) or manually configured. If the switch does not contain a default route, any packet that does not match an entry in the routing table will be dropped.

  • Page 97: Security Menu

    Specifies the source or destination IP address for any traffic to be filtered from the Configuration * switch for security reasons. * This menu item is only displayed for multilayer mode. WGS3 Layer 3 Switch User’s Manual - 89 -...

  • Page 98: Configuring Mac Address Filters

    4.5.7.1 Configuring MAC Address Filters Any node that presents a security risk or is functioning improperly can be filtered from this switch. You can drop all the traffic from a host device based on a specified MAC address. Traffic with either a source or destination address listed in the Security Filtering Configuration table will be filtered.

  • Page 99: Ip Filtering Configuration

    If any node presents a security risk, you can filter all traffic for this node by entering its address into the IP Security Filtering Configuration. Any packet passing through the switch that has a source or destination IP address matching an entry in this table will be filtered.

  • Page 100: Jumbo Packet Configuration

    4.5.8 Jumbo Packet Configuration This menu is only available for WGS3-404. In general, Ethernet only allow maximum 1518 bytes packet size. This option allow the switch to transmit up to 9216 bytes packet size to increase data transmission efficiency. Parameter...

  • Page 101: Monitoring The Switch

    VLANs and ports. Also contains the ARP table, routing table and multicast menu. *1: This menu is only displayed if WGS3-2620 is set to Layer 2 mode. *2: This menu is only displayed on WGS3-404 or WGS3-2620 when it is set to multilayer mode. WGS3 Layer 3 Switch User’s Manual...

  • Page 102: Displaying Port Statistics

    Description Port Statistics Displays statistics on network traffic passing through the selected port. RMON Statistics Displays detailed statistical information for the selected port such as packet type and frame size counters. WGS3 Layer 3 Switch User’s Manual - 94 -...

  • Page 103: Displaying Ethernet Port Statistics

    This information can be used to identify potential problems with the switch (such as a faulty port or unusually heavy loading). The values displayed have been accumulated since the last system reboot.
  • Page 104 The total number of frames received that were longer than 1518 octets (excluding framing bits, but including FCS octets), and had either an FCS or alignment error. NOTES: Statistics are refreshed every 10 seconds by default (See “4.4.2 Configuring the Serial Port”). WGS3 Layer 3 Switch User’s Manual - 96 -...

  • Page 105: Displaying Rmon Statistics

    RMON statistics provide access to a broad range of statistics, including a total count of different frame types and sizes passing through each port. Values displayed have been accumulated since the last system reboot. WGS3 Layer 3 Switch User’s Manual - 97 -...
  • Page 106 FCS octets). 128-255 Byte Frames 256-511 Byte Frames 512-1023 Byte Frames 1024-1518 Byte Frames 1519-1536 Byte Frames NOTE: Statistics are refreshed every 10 seconds by default (See “4.4.2 Configuring the Serial Port”). WGS3 Layer 3 Switch User’s Manual - 98 -...

  • Page 107: Layer 2 Address Tables

    4.6.2 Layer 2 Address Tables This menu includes the unicast address table. Menu Unicast Address Table WGS3 Layer 3 Switch User’s Manual Description Provides a full listing for unicast addresses - 99 -...

  • Page 108: Displaying The Unicast Address Table

    Parameter Description Address The MAC address of a node seen on this switch. Port The port whose address table includes this MAC address. NOTE: Use the <Next Page> and <Prev Page> buttons to scroll through the address table. To display a specific page, set the page number in the Page field and then press <Apply>.

  • Page 109: Displaying Bridge Information

    Displays a full list of STA values used for the bridge. Information Spanning Tree Port Displays a list of STA values used for each port, including status, designated Information cost, designated bridge, and designated port. WGS3 Layer 3 Switch User’s Manual - 101 -...

  • Page 110: Viewing The Current Spanning Tree Bridge Information

    The STA Bridge Information screen displays a summary of STA information for the overall bridge. To make any changes to these parameters, use the Bridge STA Configuration menu. The parameters shown in the following figure and table describe the current bridge STA settings. WGS3 Layer 3 Switch User’s Manual - 102 -...
  • Page 111 Hold Time The minimum interval between the transmission of consecutive Configuration BPDUs Designated Root The priority and MAC address of the device in the Spanning Tree that this switch has accepted as the root device. Root Cost The path cost from the root port on this switch to the root device.

  • Page 112: Displaying The Current Spanning Tree Port Information

    4.6.3.2 Displaying the Current Spanning Tree Port information The parameters shown in the following figure and table are for spanning tree port Information. WGS3 Layer 3 Switch User’s Manual - 104 -...
  • Page 113 A port on a network segment with no other STA compliant bridging device is always forwarding. If two ports of a switch are connected to the same segment and there is no other STA device attached to this segment, the port with the smaller ID forwards packets and the other is blocked.

  • Page 114: Displaying Vlan Information

    Shows the ports that have been automatically learned via GVRP. Registration Information VLAN Shows all those ports that have been configured by either dynamic or static means to Forwarding forward VLAN traffic. Information WGS3 Layer 3 Switch User’s Manual - 106 -...

  • Page 115: Vlan Dynamic Registration Information

    NOTES: To scroll through the dynamic registration table, use the <Next Page> and <Prev Page> buttons. To display a specific page, set the page number in the Page field and then press <Apply>. WGS3 Layer 3 Switch User’s Manual - 107 -...

  • Page 116: Vlan Forwarding Information

    NOTE: To scroll through the dynamic registration table, use the <Next Page> and <Prev Page> buttons. To display a specific page, set the page number in the Page field and then press <Apply>. WGS3 Layer 3 Switch User’s Manual - 108 -...

  • Page 117: Ip Multicast Registration Table

    4.6.5 IP Multicast Registration Table This table displays all the multicast groups active on the switch, including the multicast IP address and the corresponding VLANs. Parameter Description VLAN A VLAN with host members that have asked to receive the indicated multicast service.

  • Page 118: Ip Address Table

    Shows the routes through which all recognized Ethernet networks (and the corresponding VLAN) can be reached. Multicast Table Displays all the multicast groups active on this switch, including the multicast IP address and the corresponding VLANs. Also includes the IGMP registration table, the multicast forwarding cache, and DVMRP routing information.

  • Page 119: Displaying Subnet Information

    4.6.6.1 Displaying Subnet Information You can display a list of all the IP interfaces configured on this switch. This table includes the gateway address, corresponding VLAN, and member ports that use this address. Parameter Description IP Address The address for an IP interface on this switch.

  • Page 120: Arp Table

    MAC Address MAC address that maps to the corresponding IP address. VLAN The VLAN group to which this host has been assigned. Port The port to which this host device is attached. WGS3 Layer 3 Switch User’s Manual - 112 -...

  • Page 121: Routing Table

    4.6.6.3 Routing Table The Routing Table lists the routes through which all recognized Ethernet networks (and corresponding VLAN) can be reached. This table includes all routes learned through routing protocols or manual configuration. WGS3 Layer 3 Switch User’s Manual - 113 -...
  • Page 122 The IP address of the router at the next hop. Type The IP route type for the destination network. This switch supports the following types: Direct - A directly connected subnetwork. Indirect - A remote IP subnetwork or host address.

  • Page 123: Displaying Detailed Routing Information

    Enter. The following screen will display. All the items displayed on this page are the same as that shown in the Routing Table, except for Routing Metric, which represents a relative measure of the path cost from this switch to the destination network. (Note that this metric depends on the specific routing protocol.) WGS3 Layer 3 Switch User’s Manual...

  • Page 124: Multicast Table

    4.6.6.4 Multicast Table You can use this menu to display all the multicast groups currently active on this switch, the IGMP registration table, the multicast forwarding cache, and DVMRP routing information. Parameter Description IP Multicast Displays all active multicast groups, including the multicast IP address and the Registration Table corresponding VLANs.

  • Page 125: Displaying Igmp Registration Table

    4.6.6.4.1 Displaying IGMP Registration Table The switch provides a local registry of active multicast groups for each IP interface, including the age and expiration time for each entry. WGS3 Layer 3 Switch User’s Manual - 117 -...
  • Page 126 Version 1 members on the IP subnet attached to this interface. (The default is 400 seconds.) If the switch receives an IGMP Version 1 Membership Report, it sets a timer to note that there are Version 1 hosts present which are members of the group for which it heard the report.

  • Page 127: Displaying The Multicast Forwarding Cache

    4.6.6.4.2 Displaying the Multicast Forwarding Cache The switch maintains a cache of multicast routing entries used to calculate the delivery tree in multicast routing protocols. The Multicast Forwarding Cache includes the subnetwork that contains the multicast source and the nearest upstream neighbor for each known multicast group address.

  • Page 128: Displaying The Dvmrp Routing Table

    4.6.6.4.3 Displaying the DVMRP Routing Table The DVMRP Routing Table contains all the IP multicast routes learned by the DVMRP protocol. The routes displayed in this table are used by this switch to forward new IP multicast traffic. They do not reflect active multicast flows.

  • Page 129: Displaying The Dvmrp Neighbor Table

    4.6.6.4.4 Displaying the DVMRP Neighbor Table The DVMRP Neighbor Table contains the switch’s DVMRP neighbors, as discovered by receiving DVMRP protocol messages. Parameter Description Intf The IP interface on this switch that connects to the upstream neighbor. (See 4.6.6.1 Displaying Subnet Information.)

  • Page 130: Ospf Table

    Link State Table, Neighbor Table, and Virtual Neighbor Table. Parameter Description Interface Table Displays interface OSPF status Link State Table Displays a summary link state advertisements. Neighbor Table Displays current neighbor routers. Virtual Neighbor Table Displays current virtual neighbors. WGS3 Layer 3 Switch User’s Manual - 122 -...

  • Page 131: Display Interface Table

    The backup designated router IP address for the broadcast network on the interface Status The interface status. Events The number of events encountered that cause a neighbor state change since boot up. WGS3 Layer 3 Switch User’s Manual - 123 -...

  • Page 132: Displaying The Link State Table

    Note that all the routers within an area exchange information to ensure that they maintain an identical link state database. This database can therefore be used to troubleshoot network configuration problems. WGS3 Layer 3 Switch User’s Manual - 124 -...
  • Page 133 Router ID The IP address of the originating router. Sequence No. The link state sequence number, used to remove previous duplicate LSAs. The number of seconds since this LSA was originated. WGS3 Layer 3 Switch User’s Manual - 125 -...

  • Page 134: Displaying The Neighbor Table

    The neighbor’s router priority. This priority is used in electing the designated router for the area in which it exists. This value will be set to zero if this router cannot be elected. WGS3 Layer 3 Switch User’s Manual - 126 -...
  • Page 135 Full: The neighboring routers are fully adjacent. These adjacencies will now appear in router links and network links advertisements. Events The number of events encountered that cause a neighbor state change since boot up. WGS3 Layer 3 Switch User’s Manual - 127 -...

  • Page 136: Displaying The Virtual Neighbor Table

    TOS capability. You need to map the binary bits to the supported options. For example, “3” indicates both routing capability and TOS capability. WGS3 Layer 3 Switch User’s Manual - 128 -...
  • Page 137 Full: The neighboring routers are fully adjacent. These adjacencies will now appear in router links and network links advertisements. Events The number of events encountered that cause a neighbor state change since boot up. WGS3 Layer 3 Switch User’s Manual - 129 -...

  • Page 138: Resetting The System

    [Restart] Restarts the switch. NOTE: When restarting the system, it will always run the Power-On Self-Test. It will also retain all system information, unless you select to reload the factory defaults. WGS3 Layer 3 Switch User’s Manual - 130 -...

  • Page 139: Logging Off The System

    4.8 Logging Off the System Use the Exit command under the Main Menu to exit the configuration program and terminate communications with the switch for the current session. WGS3 Layer 3 Switch User’s Manual - 131 -...

  • Page 140: Chapter 5. Web Interface

    1. Configure it with a valid IP address, subnet mask, and default gateway (for Layer 2 mode) using an out-of-band serial connection. Provide a default gateway for Layer 2 operation of WGS3-2620 or a default route for WGS3-2620 multilayer operation and WGS3-404 (see 4.5.6.5 Configuring the Default Route).
  • Page 141 IP Multicast Registration Table System Restart Menu 1. Displayed for layer 2 mode of WGS3-2620 only. 2. Displayed for multilayer mode of WGS3-2620 and WGS3-404 only 3. Displayed for WGS3-2620 only 4. Displayed for WGS3-404 only WGS3 Layer 3 Switch User’s Manual...

  • Page 142: Navigating The Web Browser Interface

    When your Web browser connects with the switch’ s Web agent, the home page is displayed as shown below for WGS3-2620. The home page displays the Main Menu on the left side of the screen and System Information on the right side.
  • Page 143 11 alphanumeric characters and are not case sensitive. NOTE: Your are allowed three attempts to enter the correct password; on the third failed attempt the current connection is terminated. WGS3 Layer 3 Switch User’s Manual - 135 -...

  • Page 144: Configuration Options

    “Check for newer versions of stored pages” should be “Every visit to the page.” NOTE 2. When using Internet Explorer 5.0, you may have to manually refresh the screen after making configuration changes by pressing the browser’s refresh button. WGS3 Layer 3 Switch User’s Manual - 136 -...

  • Page 145: Panel Display

    5.3 Panel Display The Web agent displays an image of the switch’ s ports, showing port links and activity. Clicking on the image of a port displays statistics and configuration information for the port. Clicking on the image of the serial port (labeled “Mgmt”, for WGS2-2620 only) displays the Console Configuration screen.
  • Page 146 “blocking” traffic from end stations connected directly to the switch. VLAN ID The VLAN ID assigned to untagged frames received on this port. Use the PVID to assign ports to the same untagged VLAN. WGS3 Layer 3 Switch User’s Manual - 138 -...

  • Page 147: Configuring The Serial Port

    5.3.2 Configuring the Serial Port If you are having difficulties making an out-of-band console connection to the serial port on the switch, you can display or modify the current settings for the serial port through the Web agent. Click on the serial port icon in the switch image to display or configure these settings, as shown below.

  • Page 148: Main Menu

    The interface screen includes the menu tree on the left side and a list of commands beneath the image of the switch. The following table briefly describes the selections available from this program.
  • Page 149 Restart System Menu Restarts the system with options to reload factory defaults. 1: Only displays when the WGS3-2620 is set to Layer 2 mode. 2. Only displays when WGS3-2620 is set to multilayer mode and WGS3-404.. 3. Only displays when using WGS3-2620.

  • Page 150: System Information Menu

    5.5 System Information Menu Use the System Information Menu to display a basic description of the switch, including contact information, and hardware/firmware versions. Menu Description System Information Provides basic system description, including contact information. Switch Information Shows hardware/firmware version numbers, power status, and expansion modules used in the stack.

  • Page 151: Displaying Switch Version Information

    5.5.2 Displaying Switch Version Information Use the Switch Information screen to display hardware/firmware version numbers for the switch system. 5.5.2.1 WGS3-2620 Parameter Description Hardware Version Hardware version of the main board. Firmware Version System firmware version in ROM. Serial Number Serial number of the main board.

  • Page 152: Wgs3-404

    System firmware version in ROM. Serial Number The serial number (MAC address) of the main board. Port Number Number of ports on this switch. Packet Memory Size Shows memory size for packet buffer. It is always 6M bytes. WGS3 Layer 3 Switch User’s Manual...

  • Page 153: Management Setup Menu

    Downloads new version of firmware to update your system (in-band). Configuration File Saves or restores configuration data based on the specified file. * Only displays on WGS3-2620 when it is set to Layer 2 mode. WGS3 Layer 3 Switch User’s Manual - 145 -...

  • Page 154: Changing The Network Configuration ( Layer 2 Mode Of Wgs3-2620)

    5.6.1 Changing the Network Configuration Use the Network Configuration menu to set the bootup option, configure the switch’ s Internet Protocol (IP) parameters. The screen shown below is described in the following table. Parameter Description Interface Type Indicates IP over Ethernet.
  • Page 155 All VLANs – All VLANs have access right to its management interface. (This is the default setting.) Mgmt VLAN – Only the specified VLAN have access right to its management interface NOTE: When using multilayer mode, refer to “Subnet Configuration” on WGS3 Layer 3 Switch User’s Manual - 147 -...
  • Page 156 5.7.5.1 Subnet Configuration WGS3 Layer 3 Switch User’s Manual - 148 -...

  • Page 157: Assigning Snmp Parameters

    Network Management Station (NMS), can be used to access this information. Access rights to the agent module are controlled by community strings. To communicate with the switch, the NMS must first submit a valid community string for authentication. The options for configuring community strings and related trap functions are described in the following figures and table.

  • Page 158: Configuring Ip Trap Managers

    5.6.2.2 Configuring IP Trap Managers The following figure and table describe how to specify management stations that will receive authentication failure messages or other trap messages from the switch. Up to 5 trap managers may be entered. Parameter Description IP Address IP address of the trap manager.

  • Page 159: User Login Configuration

    5.6.3.1 Displaying the Current User Configuration Use this menu to display the names and access rights for people authorized to manage the switch. Parameter...

  • Page 160: Downloading System Software

    5.6.4 Downloading System Software Use the TFTP Download menu to load software updates to permanent flash ROM in the switch. The download file should be a binary file or an image file; otherwise the agent will not accept it. The success of the download operation depends on the accessibility of the TFTP server and the quality of the network connection.

  • Page 161: Saving Or Restoring The System Configuration

    5.6.5 Saving or Restoring the System Configuration Use the Configuration File menu to save the switch configuration settings to a file on a TFTP client. The file can be later downloaded to the switch to restore the switch’s settings. The success of the operation depends on the accessibility of the TFTP client and the quality of the network connection.

  • Page 162: Device Control Menu

    Security Menu Configures MAC and IP 1: Only displayed for Layer 2 mode of WGS3-2620. 2: Only displayed for WGS3-404 and multilayer mode of WGS3-2620. WGS3 Layer 3 Switch User’s Manual Address filtering. - 154 -...

  • Page 163: Layer 2 Menu

    5.7.1.1 Configuring Port Parameters Use the Port Configuration menu to display and Edit icon to set communication parameters for any port on the switch, including administrative status, auto-negotiation, default communication speed and duplex mode, as well as flow control in use.
  • Page 164 (e.g., excessive collisions), and then re-enable it after the problem has been resolved. You may also disable a port for security reasons. Enables or disables auto-negotiation for the switch to find a optimum connection speed. If auto-negotiation is disabled, the port will be set to the indicated speed and duplex mode.

  • Page 165: Using Port Mirror For Analysis

    When mirroring port traffic, note that the target port must be included in the same VLAN as the source port. (See “5.7.3.2 VLAN Table Configuration”) 5.7.1.2.1 Using Port Mirroring on WGS3-2620 On WGS3-2602, you can use the Mirror Configuration screen to mirror one or more ports to the monitor port as shown below.

  • Page 166: Using Port Mirroring On Wgs3-404

    Specify the outbound (TX_Mode) or inbound (RX_mode) packets for mirroring. Mirror Port Specify the port to be monitored Monitor Port The port whose used to attached computer with packet analyzer software. WGS3 Layer 3 Switch User’s Manual - 158 -...

  • Page 167: Configuring Port Trunks

    Trunking Configuration menu to specify the trunk on the devices at both ends. When using a port trunk, remember that:: • The ports that can be assigned to the same trunk on WGS3-2620 are listed below: Two ports as a trunk <<13, 01>>...
  • Page 168 This allows the traffic passing across that link to be automatically distributed to the other links in the trunk, without losing any significant amount of traffic. WGS3 Layer 3 Switch User’s Manual - 160 -...

  • Page 169: Static Unicast Address Table

    The Static Unicast Address Table can be used to assign the MAC address for a host device to a specific port on this switch. Static unicast addresses are never aged out, and cannot be learned by another port. If any packets with a source address specified in this table enter another port, they will be dropped. The Static Unicast Address Table is described in the following figure and table.

  • Page 170: Configuring The Static Multicast Address Table

    Delete for the required entry. To modify an address, press required entry to copy the configuration to the edit fields, make any necessary changes, then press Apply. WGS3 Layer 3 Switch User’s Manual - 162 - for the...

  • Page 171: Using The Bridge Menu

    This allows the switch to interact with other bridging devices (that is, an STA-compliant switch, bridge or router) in your network to ensure that only one route exists between any two stations on the network, and provide backup links that automatically take over when a primary link goes down.
  • Page 172 GARP Multicast Registration Protocol (GMRP) allows network devices to register end stations with multicast groups. If GMRP is globally enabled for the switch, then you can individually enable or disable GMRP for a specific port. See “4.5.4.1 VLAN Port Configuration”.
  • Page 173 GVRP for a specific port. See “4.5.4.1 VLAN Port Configuration”. WGS3-2620 supports Quality of Service (QoS) by using two priority queues, with Weighted Fair Queuing for each port. Up to 8 separate traffic classes are defined in IEEE 802.1p. So any packets with a priority equal to or higher than this threshold are placed in the high priority queue.

  • Page 174: Configuring Sta For Ports

    5.7.2.2 Configuring STA for Ports The following figure and table describe port STA configuration. WGS3 Layer 3 Switch User’s Manual - 166 -...
  • Page 175 Defines the priority for the use of a port in the STA algorithm. If the path cost for all ports on a switch are the same, the port with the highest priority (that is, lowest value) will be configured as an active link in the Spanning Tree.

  • Page 176: Configuring Virtual Lans

    5.7.3 Configuring Virtual LANs You can use the VLAN configuration menu to assign any port on the switch to any of up to 256 LAN groups. In conventional networks with routers, broadcast traffic is split up into separate domains. Switches do not inherently support broadcast domains. This can lead to broadcast storms in large networks that handle traffic such as IPX or NetBEUI.
  • Page 177 Tx Untag: Sends only untagged frames. 2: The switch supports Quality of Service (QoS) by using two or four priority queues, with Weighted Fair Queuing for each port. Inbound frames that do not have VLAN tags are tagged with the input port’ s default ingress user priority, and then placed in the appropriate priority queue at the output port.
  • Page 178 VLAN-aware), and configure an IP interface for this VLAN if you need to connect it to other group. This parameter is for WGS3-2620 only. WGS3-404’s default setting is Rx All and use VLAN Table Configuration for Tx.

  • Page 179: Vlan Table Configuration

    5.7.3.2 VLAN Table Configuration Use this screen to create a new VLAN or modify the settings for an existing VLAN. The VLAN Table Configuration of WGS3-2620 and WGS3-404 are slightly different. For WGS3-2620, the VLAN Table Configuration is as the following:...
  • Page 180 Specify the outbound packets for this VLAN on this port should be tagged or untagged. U: The outbound packets for this VLAN on this port should be untagged. T: The outbound packets for this VLAN on this port should be tagged. WGS3 Layer 3 Switch User’s Manual - 172 -...

  • Page 181: Reset Address Table Mode

    VLANs. If a given individual MAC Address is learned in one VLAN, that learned information is not used in forwarding decisions taken for that address relative to any other VLAN. IVL is suitable when two or more VLANs are connected by a bridge(switch) or there are duplicate MAC addresses on different VLANs.

  • Page 182: Configuring Igmp Snooping

    5.7.4 Configuring IGMP Snooping This option is displayed on Device Control Menu for Layer 2 mode of WGS3-2620 and on Protocol Configuration Menu ( under Device Control Menu -> IP Menu) for Layer 3 mode of WGS3-2620 or WGS3-404. Multicasting is used to support real-time applications such as video conferencing or streaming audio.
  • Page 183 Disabled Querier 1: This item is only displayed for Layer 2 mode of WGS3-2620. For WGS3-404 and multilayer mode of WGS3-2620, the full IGMP protocol set is automatically enabled/disabled along with DVMRP. (See “6.4 Multicast Filtering” and “4.5.6.1.5 Configuring DVMRP”.) 2: This item is only displayed for Layer 2 mode of WGS3-2620.

  • Page 184: Configuring Ip Settings

    5.7.5 Configuring IP Settings If this switch is WGS3-404 or WGS3-2620 in multilayer mode, the IP Menu will be displayed. Use this menu to configure the IP subnets for each VLAN on your switch, the unicast and multicast routing protocols, static ARP entries, static IP routes, and the default IP route.

  • Page 185: Subnet Configuration

    (that is, another network segment). You also need to define a VLAN for each IP subnet connected directly to this switch. Note that you must first create a VLAN as described under “5.7.3 Configuring Virtual LANs” before configuring the corresponding subnet.

  • Page 186: Adding An Ip Interface

    “6.2.6.1 RIP and RIP-2 Dynamic Routing Protocols”.) When RIP is enabled on this routing switch, it broadcasts RIP messages to all devices in the network every 30 seconds, and updates its own routing table when RIP messages are received from other routers.
  • Page 187 * This is a method of preventing routing information from looping back to the source. Note that Split Horizon is also enabled on this switch for this purpose. (See “6.2.6.1 RIP and RIP-2 Dynamic Routing Protocols”.) WGS3 Layer 3 Switch User’s Manual...

  • Page 188: Configuring Ospf

    A 32-bit integer uniquely identifying an OSPF protocol broadcast area This identifier can be in the form of an IP address or integer. Each port on the switch can be configured to represent one OSPF area. You must first specify OSPF areas for global access in the Area ID Configuration menu, before they can be used for a specific IP interface.
  • Page 189 120 seconds Sets the poll interval (in seconds) for this interface. If a neighboring Authentication Type NONE Authentication Key WGS3 Layer 3 Switch User’s Manual The estimated number of seconds it takes to transmit a link state update packet over this interface.
  • Page 190 2: This value must be the same for all routers attached to a common network. WGS3 Layer 3 Switch User’s Manual When use MD5 authentication mode, you have to specify an active MD5 key on this table.

  • Page 191: Configuring Dvmrp

    Metrics 1 hop This value is used to select the best reverse path to networks that are connected directly to an interface on this switch. Range: 1-31 hops Probe Interval 10 The interval between sending neighbor probe messages to the multicast group seconds address for all DVMRP routers.

  • Page 192: Protocol Configuration

    5.7.5.2 Protocol Configuration Use the Protocol Configuration screen to globally enable or disable unicast or multicast routing protocols for the switch. WGS3 Layer 3 Switch User’s Manual - 184 -...
  • Page 193 (See “6.2.5 Proxy ARP”.) If Proxy ARP is globally enabled for the switch, then you can enable or disable it for a specific interface. See “4.5.6.1.1 Adding an IP Interface”, or “4.5.6.1.3 Modifying an IP Interface”.

  • Page 194: Setting The Arp Timeout

    You can use the following configuration screen to set the timing interval and policies RIP uses to advertise route information. Parameter Default RIP Update Time 30 seconds WGS3 Layer 3 Switch User’s Manual Description The interval at which RIP advertises known route information. Range: 0-999 seconds, where 0 disables route advertisements - 186 -...

  • Page 195: Configuring Global Settings For Ospf

    OSPF routers that actively exchange Link State Advertisements (LSAs). You can then define an OSPF interface by assigning an IP interface configured on this switch to one of these groups. This OSPF interface will send and receive OSPF traffic to neighboring OSPF routers. You can further optimize the exchange of OSPF traffic by specifying an area range that covers a large number of subnetwork addresses.
  • Page 196 Range Configuration OSPF Virtual Link Configuration WGS3 Layer 3 Switch User’s Manual Defines an area within which all OSPF routers actively exchange routing information to ensure that they all have an identical link state database. Defines a range of subnetwork addresses. An area range is used to summarize route information exchanged between Area Border Routers.

  • Page 197: Ospf Area Configuration

    The ABR imports external routes and floods this information to all routers within the NSSA. An Autonomous System Boundary Router (ASBR) can import external routes and flood this information to the entire Autonomous System. WGS3 Layer 3 Switch User’s Manual - 189 -...

  • Page 198: Ospf Area Range Configuration

    IP Address The IP address used to calculate the area range. Address Mask The subnet mask used to calculate the area range. Advertisement Enables or disables advertising for this range. WGS3 Layer 3 Switch User’s Manual - 190 -...

  • Page 199: Ospf Virtual Link Configuration

    Modifying a Virtual Link – You can modify or delete a virtual link by click edit icon display configuration options as shown in the following example. WGS3 Layer 3 Switch User’s Manual for the required entry. The screen will - 191 -...
  • Page 200 Authentication None Type Authentication WGS3 Layer 3 Switch User’s Manual Description An identifier for the transit area the virtual link crosses. The IP address of the OSPF router on this end of the virtual link. The estimated number of seconds it takes to transmit a link state update packet over this virtual link.

  • Page 201: Configuring Bootp/Dhcp Relay

    5.7.5.2.4 Configuring BOOTP/DHCP Relay If a DHCP/BOOTP server is not located in the same subnet with a host, you can configure this switch to forward any host configuration queries to a server located on another subnet or on another network.
  • Page 202 5.7.5.1 Subnet Configuration) as described in the following screens. Parameter Description Index Server Used to define any preferred DHCP servers or the outbound subnetwork for Address relaying a DHCP request broadcast. (Up to five entries are permitted.) WGS3 Layer 3 Switch User’s Manual - 194 -...

  • Page 203: Static Arp Configuration

    5.7.5.3 Static ARP Configuration Use the following screen to display or edit entries in the Static ARP Table. Entries added to this table are retained until the associated IP interface is deleted or the switch is reset to the factory defaults. Parameter...

  • Page 204: Static Route Configuration

    5.7.5.4 Static Route Configuration This switch can be configured to dynamically learn the routes to other IP networks, subnets or hosts using unicast or multicast routing protocols. If the route to a specific destination cannot be learned via these protocols, or you wish to restrict the path used for transmitting traffic to a destination, it can be statically configured using the Static Route Table.
  • Page 205 5.7.5.1 Subnet Configuration). Static routes take precedence over dynamically learned routes and remain in the table until you remove them or the corresponding IP interface from this switch. Parameter Description Destination A destination network, subnet or host. Network Destination The subnet mask that specifies the bits to match. A routing entry will be used for a packet...

  • Page 206: Configuring The Default Route

    Defines the router to which this switch will forward all traffic for unknown networks. The default route can be learned from RIP protocol or manually configured. If the switch does not contain a default route, any packet that does not match an entry in the routing table will be dropped. To manually configure a default route, enter the next hop in the following table.

  • Page 207: Configuring Security Filters

    Specifies the source or destination IP address for any traffic to be filtered from the Configuration* switch. * This menu item is only displayed for WGS3-404 or multilayer mode of WGS3-2620. 5.7.6.1 Configuring MAC Address Filters Any node that presents a security risk or is functioning improperly can be filtered from this switch. You can drop all the traffic from a host device based on a specified MAC address.

  • Page 208: Jumbo Packet Configuration

    5.7.7 Jumbo Packet Configuration This menu is only available for WGS3-404. In general, Ethernet only allow maximum 1518 bytes packet size. This option allow the switch to transmit up to 9216 bytes packet size to increase data transmission efficiency. Parameter...

  • Page 209: Monitoring The Switch

    *1: This menu is only displayed if WGS3-2620 is set to Layer 2 mode. *2: This menu is only displayed on WGS3-404 or WGS3-2620 when it is set to multilayer mode. WGS3 Layer 3 Switch User’s Manual...

  • Page 210: Displaying Port Statistics

    This information can be used to identify potential problems with the switch, such as a faulty port or unusually heavy loading. The values displayed have accumulated since the last system reboot.
  • Page 211 The number of times that a collision is detected later than 512 bit-times into the transmission of a packet. Carrier Sense Errors The number of times that the carrier sense condition was lost or never asserted when attempting to transmit a frame. WGS3 Layer 3 Switch User’s Manual - 203 -...
  • Page 212 The total number of frames received that were longer than 1518 octets (excluding framing bits, but including FCS octets), and contained either an FCS or alignment error. NOTE: Statistics are refreshed every 10 seconds by default (See 5.3.2 Configuring the Serial Port). WGS3 Layer 3 Switch User’s Manual - 204 -...

  • Page 213: Displaying Rmon Statistics

    Collisions 64 Byte Frames 65-127 Byte Frames 128-255 Byte Frames WGS3 Layer 3 Switch User’s Manual Description The total number of events in which packets were dropped due to lack of resources. Total number of bytes of data received on the network. This statistic can be used as a reasonable indication of Ethernet utilization.
  • Page 214 256-511 Byte Frames 512-1023 Byte Frames 1024-1518 Byte Frames 1519-1536 Byte Frames NOTE: Statistics are refreshed every 10 seconds by default (See 5.3.2 Configuring the Serial Port). WGS3 Layer 3 Switch User’s Manual - 206 -...

  • Page 215: Layer 2 Address Tables

    The information displayed in the Address Table is indicated in the following figure and table. Parameter Description Address The MAC address of a node seen on this switch. Port The port whose address table includes this MAC address. WGS3 Layer 3 Switch User’s Manual - 207 -...

  • Page 216: Displaying Bridge Information

    The time interval (in seconds) at which the root device transmits a configuration message. Max Age The maximum time (in seconds) a device can wait without receiving a configuration message before attempting to reconfigure. WGS3 Layer 3 Switch User’s Manual - 208 -...
  • Page 217 Hold Time The minimum interval between the transmission of consecutive Configuration BPDUs. Designated The priority and MAC address of the device in the Spanning Tree that this switch has Root accepted as the root device. Root Cost The path cost from the root port on this switch to the root device.

  • Page 218: Displaying The Current Sta For Ports

    The parameters shown in the following figure and table are for port STA Information. Parameter Description Type Shows port type as: 100BASE-TX : 10BASE-T / 100BASE-TX 1G BASE-T : 1000BASE-T 1000FX: 1000Base-SX/1000Base-LX WGS3 Layer 3 Switch User’s Manual - 210 -...
  • Page 219 A port on a network segment with no other STA compliant bridging device is always forwarding. If two ports of a switch are connected to the same segment and there is no other STA device attached to this segment, the port with the smaller ID forwards packets and the other is blocked.

  • Page 220: Displaying Vlan Information

    This table shows the ports that have been automatically learned via GVRP. 5.8.4.2 VLAN Forwarding Information Shows all those ports that have been configured by either dynamic or static means to forward VLAN traffic. WGS3 Layer 3 Switch User’s Manual - 212 -...

  • Page 221: Ip Multicast Registration Table

    5.8.5 IP Multicast Registration Table This table displays all the multicast groups active on the switch, including the multicast IP address and the corresponding VLANs. Parameter Description VLAN A VLAN with host members that have asked to receive the indicated multicast service.

  • Page 222: Ip Menu

    Displays a link state advertisement summary, the neighbor table, and the virtual neighbor table. 5.8.6.1 Displaying Subnet Information You can display a list of all the IP interfaces configured on this switch. This table includes the gateway address, corresponding VLAN, and member ports that use this address. Parameter Description The address for an IP interface on this switch.

  • Page 223: Arp Table

    The subnet mask that specifies the bits to match. A routing entry will be used for a packet if the bits in the address set by the destination mask match the Destination Network. WGS3 Layer 3 Switch User’s Manual - 215 -...
  • Page 224 (This entry only applies to RIP.) Routing Metric* A relative measure of the path cost from this switch to the destination network. (This value depends on the specific routing protocol.) *These three options is only for WGS3-2620.

  • Page 225: Multicast Table

    5.8.6.4 Multicast Table You can use this menu to display all the multicast groups currently active on this switch, the IGMP cache, the multicast forwarding cache, and DVMRP routing information. Parameter Description IP Multicast Displays all active multicast groups, including the multicast IP address and the Registration Table corresponding VLANs.

  • Page 226: Displaying Igmp Registration Table

    5.8.6.4.1 Displaying IGMP Registration Table The switch provides a local registry of active multicast groups for each IP interface, including the age and expiration time for each entry. Parameter Description Group Address An IP multicast group address with subscribers directly attached or downstream from this switch.

  • Page 227: Displaying The Multicast Forwarding Cache

    5.8.6.4.2 Displaying the Multicast Forwarding Cache The switch maintains a cache of multicast routing entries used to calculate the delivery tree in multicast routing protocols. The Multicast Forwarding Cache includes the subnetwork that contains the multicast source and the nearest upstream neighbor for each known multicast group address.

  • Page 228: Displaying The Dvmrp Routing Table

    5.8.6.4.3 Displaying the DVMRP Routing Table The DVMRP Routing Table contains all the IP multicast routes learned by the DVMRP protocol. The routes displayed in this table are used by this switch to forward new IP multicast traffic. They do not reflect active multicast flows.

  • Page 229: Displaying The Dvmrp Neighbor Table

    The DVMRP Neighbor Table contains the switch’s DVMRP neighbors, as discovered by receiving DVMRP protocol messages. Parameter Description Interface The IP interface on this switch that connects to the upstream neighbor. (See 5.8.6.1 Displaying Subnet Information.) Neighbor The IP address of the network device immediately upstream for this multicast delivery Address tree.

  • Page 230: Ospf Table

    Note that all the routers within an area exchange information to ensure that they maintain an identical link state database. This database can therefore be used to troubleshoot network configuration problems. WGS3 Layer 3 Switch User’s Manual - 222 -...

  • Page 231: Displaying The Neighbor Table

    The index number of the router interface to which this neighbor is attached. For IP protocol, this value will always be zero. Router ID The OSPF identifier for the neighboring router. WGS3 Layer 3 Switch User’s Manual - 223 -...
  • Page 232 Full: The neighboring routers are fully adjacent. These adjacencies will now appear in router links and network links advertisements. Events The number of events encountered that cause a neighbor state change since boot up. WGS3 Layer 3 Switch User’s Manual - 224 -...

  • Page 233: Displaying The Virtual Neighbor Table

    TOS capability. You need to map the binary bits to the supported options. For example, “3” indicates both routing capability and TOS capability. WGS3 Layer 3 Switch User’s Manual - 225 -...
  • Page 234 Full: The neighboring routers are fully adjacent. These adjacencies will now appear in router links and network links advertisements. Events The number of events encountered that cause a neighbor state change since boot up. WGS3 Layer 3 Switch User’s Manual - 226 -...

  • Page 235: Resetting The System

    [Apply] Restarts the switch. NOTE: When restarting the system, it will always run the Power-On Self-Test. It will also retain all system information, unless you elect to reload the factory defaults. WGS3 Layer 3 Switch User’s Manual - 227 -...

  • Page 236: Chapter 6.Advanced Topics

    Chapter 6.Advanced Topics This Layer 3 switch supports both Layer 2 which is based on physical device addresses and Layer 3 switching which is based on IP network addresses. These functions, along with other advanced features are described in this chapter.

  • Page 237: Unicast Switching

    - If unknown, the switch adds this pair to the address table. - If known, the switch checks the pair for an incorrect Port ID. If the PID associated with the pair in the address table is different from the receiving port, the switch modifies the PID in the address table.

  • Page 238: Multicast Switching

    • Forwarding— the switch floods the received multicast frame to all ports within the VLAN, excluding the source port. At the same time, the switch decides whether a VLAN tag needs to be added to or stripped from the frame, depending on the VLAN tagged/untagged configuration and VLAN ID for the output port.
  • Page 239 WGS3 Layer 3 Switch User’s Manual - 231 -...

  • Page 240: Layer 3 Switching

    6.2.1 Initial Configuration In the default configuration, all ports belong to the same virtual LAN and the switch provides only Layer 2 functionality. So you should first group all the ports that belong to the same subnet into virtual LANs. By separating the switch into different VLANs, the network is partitioned into subnetworks that are disconnected at Layer 2.

  • Page 241: Ip Switching

    The IP packet can then be sent directly with the destination MAC address. If the destination belongs to a different subnet on this switch, the packet can be routed directly to the destination node. However, if the packet belongs to a subnet not included on this switch, then the packet should be sent to a router (with the MAC address of the router used as the destination MAC address, and the destination IP address of the destination node).

  • Page 242: Routing Path Management

    ARP request by sending its own MAC address to the requesting node. That node then sends traffic to the switch, which in turn uses its own routing table to forward the traffic to the remote destination. End stations that require Proxy ARP must view the entire network as a WGS3 Layer 3 Switch User’s Manual...

  • Page 243: Routing Protocols

    These nodes must therefore use a smaller subnet mask than that used by the switch or other relevant network devices. Note that extensive use of Proxy ARP can adversely affect the performance of the switch because it may lead to increased ARP traffic and increased search time for larger ARP address tables.

  • Page 244: Ospfv2 Dynamic Routing Protocol

    Only after these routers successfully exchange and synchronize their routing tables, will they be considered fully adjacent (page 2-98 or 3-69). Routing information is only exchanged between adjacent neighbors. Designated Router – A Designated Router (DR) and Backup Designated Router (BDR) are selected by WGS3 Layer 3 Switch User’s Manual - 236 -...
  • Page 245 (Virtual links can only span one intermediate area to reach the backbone.) Virtual links can be used as a redundant link, preventing partitioning from the backbone. They can also be used to merge two separate backbone areas. WGS3 Layer 3 Switch User’s Manual - 237 -...

  • Page 246: Non-Ip Protocol Routing

    ABR at the other end of the link. 6.2.7 Non-IP Protocol Routing The switch supports IP routing only. Non-IP protocols such as IPX and AppleTalk can not be routed by this switch, and will be confined within their local VLAN group unless bridged by an external router.

  • Page 247: Virtual Lans

    Instead of using physically separate subnets which are linked by traditionally slow routers, this switch creates segregated broadcast domains based on easily configurable VLANs, and then links these VLANs as required with wire-speed routing.

  • Page 248: Assigning Ports To Vlans

    Port overlapping can be used to allow access to commonly shared network resources among different VLAN groups, such as file servers or printers. (Not supported for multilayer mode of WGS3-2620) Note that if you implement VLANs which do not overlap, but still need to communicate, you can connect them by setting this switch to multilayer mode, and assigning an IP interface address to the different VLANs.

  • Page 249: Forwarding Tagged/Untagged Frames

    6.3.2 Forwarding Tagged/Untagged Frames Ports can be assigned to multiple tagged or untagged VLANs. Each port on the switch is therefore capable of passing tagged or untagged frames. To forward a frame from a VLAN-aware device to a VLAN-unaware device, the switch first decides where to forward the frame, and then strips off the VLAN tag.

  • Page 250: Connecting Vlan Groups

    VLANs and Layer 3 switching simultaneously. By using the abstraction of a logical port number to represent a collection of physical switch ports in the same VLAN, Layer 3 switching can occur from one VLAN to another transparently without changing the routing protocol and IP routing software, while Layer 2 switching is still used for intra-VLAN traffic.

  • Page 251: Multicast Filtering

    A router, or multicast-enabled switch, can periodically ask their hosts is they want to receive multicast traffic. If there is more than one router/ switch on the LAN performing IP multicasting, one of these devices is elected “querier” and assumes the responsibility of querying the LAN for group members. It then propagates the service requests on to any neighboring multicast switch/router to ensure that it will continue to receive the multicast service.

  • Page 252: Gmrp Protocol

    When the join packet reaches a port on the switch, it configures this port to receive multicast traffic for the requested group, and then issues a similar join packet to all other ports on the switch, informing them that incoming multicast traffic for the stated group is to be forwarded to the requesting port.

  • Page 253: Class-Of-Service (Cos) Support

    Priority assignment to a packet in this switch can be accomplished in any of the following ways: • Priority can be explicitly assigned by end stations which have applications that require a higher priority than best-effort.

  • Page 254: Bootp/Dhcp Relay

    Then, depending on the configuration setup, the switch either: • Forwards the packet to a specific server as defined in the switch’s configuration using unicast routing, • Broadcasts the DHCP Request again to another directly attached IP subnet specified in the switch configuration for the receiving IP subnet.

  • Page 255: Security Features

    6.7.4 IP Address Filters IP addresses can also set to be filtered by the switch. IP packets with a source or destination address listed in the IP address filter will be dropped by the switch upon entry.

  • Page 256: Snmp Management Software

    This switch provides support for mini-RMON which contains the four key groups required for basic remote monitoring. These groups include: Statistics: Includes all the tools needed to monitor your network for common errors and overall traffic rates.

  • Page 257: Appendix A Troubleshooting

    • Be sure you have configured the agent with a valid IP address, Telnet, Web browser, or subnet mask and default gateway (Layer 2 of WGS3-2620). SNMP software • Check that you have a valid network connection to the switch and that the port you are using has not been disabled.

  • Page 258: Upgrading Firmware Via The Serial Port

    A.2 Upgrading Firmware via the Serial Port You can upgrade system firmware by connecting your computer to the serial port on the switch, and using a console interface package that supports the XModem protocol. (See “3.2 Required Connections”) 1. Restart the system by using the Restart System command; or by pulling out the power cord to reset the power, waiting five seconds, and plugging it back in.
  • Page 259 For details on managing the switch, refer to “Chapter 4. Console Interface” for information on the out-of-band console interface, or “Chapter 5. Web Interface” for information on the Web interface. WGS3 Layer 3 Switch User’s Manual - 251 -...

  • Page 260: Appendix B Pin Assignments

    Appendix B Pin Assignments Console Port Pin Assignments The DB-9 serial port on the switch’ s rear panel is used to connect to the switch for out-of-band console configuration. The on-board menu-driven configuration program can be accessed from a terminal, a PC running a terminal emulation program, or from a remote location via a modem connection.

  • Page 261: Ssignments

    RI (Ring Indicator) Console Port to 9-Pin COM Port on PC Switch’s 9-Pin Serial Port 1 DCD 2 TXD WGS3 Layer 3 Switch User’s Manual Switch’s DB9 PC DB9 DTE DTE Pin # Pin # CCITT Signal PC’s 9-Pin COM Port ----------- DCD ------------ ----------- RXD ---------->...
  • Page 262 3 RXD 4 DSR 5 SGND 6 DTR 7 CTS - 8 RTS 9 RI WGS3 Layer 3 Switch User’s Manual <--------- TXD ------------ ----------- DTR ------------ ----------- SGND ---------- ----------- DSR ----------> <--------- RTS ------------ ----------- CTS -----------> ----------- RI ---------------...

  • Page 263: Pin Dce Port On Modem

    Console Port to 25-Pin DCE Port on Modem Switch’ s 9-Pin Serial Port WGS3 Layer 3 Switch User’s Manual CCITT Signal <--------- DCD ------------ <--------- RXD ------------ ----------- TXD ----------> ----------- DTR ----------> ----------- SGND ---------- <--------- DSR ------------ ----------- RTS ----------->...
  • Page 264 GARP VLAN Registration Protocol (GVRP) Defines a way for switches to exchange VLAN information in order to register necessary VLAN members on ports along the Spanning Tree so that VLANs defined in each switch can work automatically over a Spanning Tree network.
  • Page 265 Management of the network from a station attached directly to the network. IP Multicast Filtering A process whereby this switch can pass multicast traffic along to participating hosts. Layer 2 Data Link layer in the ISO 7-Layer Data Communications Protocol. This is directly related to the hardware interface for network devices and passes traffic based on MAC addresses.
  • Page 266 Multicast Switching A process whereby the switch filters incoming multicast frames for services no attached host has registered for, or forwards them to all ports contained within the designated multicast VLAN group. Open Shortest Path First (OSPF) OSPF is a link state routing protocol that functions better over a larger network such as the Internet, as opposed to distance vector routing protocols such as RIP.
  • Page 267 LAN. XModem A protocol used to transfer files between devices. Data is grouped in 128-byte blocks and error-corrected. WGS3 Layer 3 Switch User’s Manual - 259 -...

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