Page 3 - ONTENTS; BOUT
C ONTENTS A BOUT T HIS G UIDE Introduction 1 Audience 1 How to Use This Guide 1 Conventions 2 Related Documents 3 3Com Documents 3 Reference Documents 4 SNMP and MIB-Based Information 4 ATM and LAN Documents 5 1 I NTRODUCTION ATM Backbone SwitchModule Overview 1-1 ATM Backbone SwitchModule Features ...
Page 4 - LAN E; MULATION
PacketChannel Backplane Description 1-8 Slot Restrictions Per Backplane 1-8 Sample ATM Backbone SwitchModule Configurations 1-10 Basic Configuration 1-10 Dual-Homing Configuration 1-11 Dual-Homing/Module Redundancy Configuration 1-12 2 LAN E MULATION O VERVIEW General Definition of LAN Emulation 2-1...
Page 5 - ATM B
3 C ONFIGURING THE ATM B ACKBONE S WITCH M ODULE Configuration Tools 3-1 Distributed Management Module 3-2 Advanced Management Tools 3-2 Transcend Network Control Services for UNIX 3-2 Transcend Network Management Software for W indows 3-3 Third-Party SNMP-Based Tools 3-4 Setting Up DMM Access 3-5 S...
Page 9 - IGURES
F IGURES 1-1 ATM Backbone SwitchModule Hardware Components 1-4 1-2 ATM Backbone SwitchModule Base Configuration 1-6 1-3 ATM Backbone SwitchModule with Redundant ATM OC-3 Card 1-7 1-4 Example Base Configuration 1-10 1-5 Example Dual-Homing Configuration 1-11 1-6 Example Dual-Homing/Module Redundancy ...
Page 11 - ABLES
T ABLES 1 Notice Icons 2 2 Text Conventions 2 1-1 Supported Standards and MIBs 1-4 1-2 SwitchModule Installation Per Backplane 1-8 4-1 Other Vbridge IGMP Snooping Options 4-4 6-1 Base Module LED Status 6-2 6-2 Base Module LED Corrective Actions 6-3 6-3 ATM OC-3 Card LED Corrective Actions 6-4 A-1 En...
Page 13 - Introduction; 000 ATM Backbone SwitchModule.; Audience; This guide is intended for the following people at your site:; If you are looking for:
A BOUT T HIS G UIDE Introduction This guide describes how to install, configure, and manage the 3Com CoreBuilder ® 5000 ATM Backbone SwitchModule. If the information in the release notes shipped with your product differs from the information in this guide, follow the release note instructions. Audie...
Page 14 - Conventions; Table 1; Notice Icons; Table 2; Text Conventions
2 A BOUT T HIS G UIDE Conventions The following tables list conventions used throughout this guide: Table 1 Notice Icons Icon Type Description Information Note Information notes call attention to important features or instructions. Caution Cautions alert you to personal safety risk, system damage, o...
Page 15 - Related Documents; Com Documents; CoreBuilder 5000 SwitchModule User Guide; commands; Convention
Related Documents 3 Related Documents This section provides information on supporting documentation, including: ■ 3Com Documents ■ Reference Documents 3Com Documents The following documents provide additional information on 3Com products: ■ CoreBuilder 5000 SwitchModule User Guide — Provides informa...
Page 16 - Co reBuild er 5000 Distributed Management Mod ule User Guide; Reference Documents
4 A BOUT T HIS G UIDE ■ Co reBuild er 5000 Integrated System Hub Installation and Operatio n Guide — Provides information on the installation, operation, and configuration of the CoreBuilder 5000 Integrated System Hub. This guide also describes the principal features of the CoreBuilder 5000 Fault-To...
Page 17 - Evolution of the Interfaces; ATM and LAN; ATM User-Network Interface Specification Version 3.0
Related Documents 5 ■ Kastenholz, F. and McCloghrie, K., Evolution of the Interfaces Group of MIB-II, RFC 1573, FTP Software and Hughes LAN Systems, January 1994. ■ Brown, T. and Tesink, K., Definitions of Managed Objects for the SONET/SDH Interface Type, RFC 1595, Bell Communications Research, Marc...
Page 19 - NTRODUCTION; ATM Backbone
1 I NTRODUCTION This chapter describes the features and components of the 3Com CoreBuilder ® 5000 ATM Backbone SwitchModules and how ATM Backbone SwitchModules operate. This chapter contains the following sections: ■ ATM Backbone SwitchModule Overview ■ ATM Backbone SwitchModule Architecture ■ ATM B...
Page 20 - — A secondary ATM OC-3 card provides PHY
1-2 C HAPTER 1: I NTRODUCTION Multiple Redundancy Levels You can configure the ATM Backbone SwitchModule for two levels of redundancy: ■ PHY Redundancy — A secondary ATM OC-3 card provides PHY redundancy. If the primary ATM OC-3 card or attached cable fails or performance fails or is no longer recei...
Page 21 - Hot Swap Feature
ATM Backbone SwitchModule Overview 1-3 Hot Swap Feature You can insert or remove ATM Backbone SwitchModules without powering off the CoreBuilder 5000 chassis. Supported CoreBuilder 5000 SwitchModules CoreBuilder 5000 ATM Backbone SwitchModules provide ATM connectivity for the following CoreBuilder 5...
Page 22 - Supported; ATM Backbone SwitchModule Hardware Components; ATM Backbone SwitchModule
1-4 C HAPTER 1: I NTRODUCTION Supported Management Standards CoreBuilder 5000 ATM Backbone SwitchModules support the standards and MIBs shown in Table 1-1. ATM Backbone SwitchModule Architecture This section describes the hardware components of the CoreBuilder 5000 ATM Backbone SwitchModule. Figure ...
Page 24 - Base Hardware; ATM Backbone SwitchModule Base Configuration
1-6 C HAPTER 1: I NTRODUCTION ATM Backbone SwitchModule Descriptions This section describes the base and redundant hardware configurations of the ATM Backbone SwitchModule. Base Hardware Configuration Figure 1-2 shows the ATM Backbone SwitchModule with only the primary ATM OC-3 card installed. Figur...
Page 25 - Redundant Hardware; ATM Backbone SwitchModule with Redundant ATM OC-3 Card; See the
ATM Backbone SwitchModule Descriptions 1-7 Redundant Hardware Configuration Figure 1-3 shows the ATM Backbone SwitchModule with an optional redundant ATM OC-3 card installed. Figure 1-3 ATM Backbone SwitchModule with Redundant ATM OC-3 Card See the CoreBuilder ® 5000 ATM Backbone SwitchModule Quick ...
Page 26 - Standard PacketChannel; SwitchModule Installation Per Backplane
1-8 C HAPTER 1: I NTRODUCTION PacketChannel Backplane Description An ATM Backbone SwitchModule installed in the CoreBuilder 5000 hub connects to the CoreBuilder 5000 PacketChannel backplane. There are two kinds of PacketChannel backplanes: ■ Standard PacketChannel — Supports packet-switching. When y...
Page 27 - Refer to the; SwitchModule Installation Per Backplane (continued)
PacketChannel Backplane Description 1-9 Refer to the CoreBuilder 5000 Integrated System Hub Installation and Operation Guide for more information about CoreBuilder 5000 hub backplanes. 10-Slot PacketChannel (Part Number 30-0432) 3C96010C-AP3C96010C-BP3C96010CH-AP Install ATM Backbone SwitchModule in...
Page 28 - Basic Configuration; Example Base Configuration
1-10 C HAPTER 1: I NTRODUCTION Sample ATM Backbone SwitchModule Configurations This section illustrates three basic configurations of the ATM Backbone SwitchModule: ■ Basic Configuration ■ Dual-Homing Configuration ■ Dual-Homing/Module Redundancy Configuration Basic Configuration Figure 1-4 illustra...
Page 29 - Configuration; Example Dual-Homing Configuration; NNI
Sample ATM Backbone SwitchModule Configurations 1-11 Dual-Homing Configuration Figure 1-5 illustrates the dual-homing configuration of an ATM Backbone SwitchModule with a redundant ATM OC-3 card. Figure 1-5 Example Dual-Homing Configuration If the loss of light, frame, or cell delineation is detecte...
Page 30 - Redundancy; Example Dual-Homing/Module Redundancy Configuration
1-12 C HAPTER 1: I NTRODUCTION Dual-Homing/Module Redundancy Configuration Figure 1-6 illustrates the dual-homing/module redundancy configuration of two ATM Backbone SwitchModules with redundant ATM OC-3 cards. Figure 1-6 Example Dual-Homing/Module Redundancy Configuration The LECs in the example co...
Page 31 - Load balancing
Sample ATM Backbone SwitchModule Configurations 1-13 The features of the dual-homing/module redundancy configuration include: ■ Load balancing LEC support is distributed manually across two ATM Backbone SwitchModules ■ ATM PHY redundancy On either ATM Backbone SwitchModule, if the loss of any critic...
Page 34 - LAN Emulation Function
2-2 C HAPTER 2: LAN E MULATION O VERVIEW Figure 2-1 LAN Emulation Function The ATM Backbone SwitchModule provides a LAN emulation bridge between an ATM network and a standard Ethernet-based SwitchModule (Figure 2-2). Figure 2-2 ATM Backbone SwitchModule Function The ATM Backbone SwitchModule accepts...
Page 35 - This section identifies:; General LANE; General LAN Emulation Components; Each of the major LAN emulation components are defined here.; LAN Emulation Configuration Server (LECS)
LAN Emulation Components 2-3 LAN Emulation Components This section identifies: ■ General LANE Components ■ ATM Backbone SwitchModule LANE Components General LANE Components The major components of ATM LAN emulation are identified in Figure 2-3. Figure 2-3 General LAN Emulation Components Each of the...
Page 36 - ATM Backbone SwitchModule LANE Components
2-4 C HAPTER 2: LAN E MULATION O VERVIEW Broadcast and Unknown Server (BUS) The Broadcast and Unknown Server is a multicast server that forwards multicast and broadcast traffic to LECs within a specific ELAN. The BUS also floods unknown unicast traffic to all LECs in the ELAN. ATM Backbone SwitchMod...
Page 37 - Protocol Stacks; LAN Emulation Protocol Stacks
LAN Emulation Data Exchange 2-5 Virtual Bridge (vbridge) You create virtual bridges on CoreBuilder 5000 SwitchModules. You assign each bridgeport-LEC to a vbridge on a SwitchModule in the CoreBuilder 5000 hub. Emulated LAN (ELAN) You assign each bridgeport-LEC to an ELAN in the ATM network. An ELAN ...
Page 38 - Packets Versus Cells; Converting SwitchModule Packets to and from ATM Cells
2-6 C HAPTER 2: LAN E MULATION O VERVIEW Packets Versus Cells The ATM Backbone SwitchModule converts Ethernet- and FDDI-originated packets to and from ATM cells. Figure 2-6 illustrates the conversion of SwitchModule packets to and from ATM cells. Figure 2-6 Converting SwitchModule Packets to and fro...
Page 39 - Control VCCs; Control VCCs in ATM Backbone SwitchModule LAN Emulation
LAN Emulation Connections 2-7 LAN Emulation Connections LAN emulation uses VCCs (virtual channel connections) to provide communications between a LEC and the LANE service. There are two types of VCCs: ■ Control VCCs ■ Data VCCs Control VCCs Control VCCs consist of the following three types: ■ Config...
Page 40 - Data VCCs; Data VCCs in ATM Backbone SwitchModule LAN Emulation
2-8 C HAPTER 2: LAN E MULATION O VERVIEW Data VCCs Data VCCs consist of the following three types: ■ Data Direct VCC — A bidirectional point-to-point VCC set up between two LECs that want to exchange data ■ Multicast Send VCC — A bidirectional point-to-point VCC between the LEC and the BUS ■ Multica...
Page 41 - Initialization
LAN Emulation Operation 2-9 LAN Emulation Operation This section describes the simplified operation of a LEC in a LAN emulation configuration. LEC operation is defined by the protocols of the LAN Emulation User-Network Interface (LUNI). LUNI protocol defines each stage of operation for a LEC. The ma...
Page 42 - LECS Connection; Uses a locally configured LECS ATM address.
2-10 C HAPTER 2: LAN E MULATION O VERVIEW LECS Connection The LEC must determine the ATM address of its LECS and establish a connection to the LECS. The LEC attempts each of the following methods, in the order provided, to connect to its LECS: 1 Uses a locally configured LECS ATM address. 2 Queries ...
Page 43 - BUS Connection; During the BUS Connection stage, the LEC:; Data Movement
LAN Emulation Operation 2-11 BUS Connection During the BUS Connection stage, the LEC: 1 Sends an LE-ARP (LAN Emulation-Address Resolution Protocol) request to the LES containing the target MAC address FF-FF-FF-FF-FF-FF (broadcast MAC address). The LES returns an LE-ARP response containing the ATM ad...
Page 45 - ATM; ACKBONE; Configuration Tools
3 C ONFIGURING THE ATM B ACKBONE S WITCH M ODULE This chapter provides procedures for configuring the CoreBuilder ® 5000 ATM Backbone SwitchModule. This chapter contains the following sections: ■ Configuration Tools ■ Setting Up DMM Access ■ Configuration Process Overview ■ Configuring LAN Emulation...
Page 46 - Distributed; Connect a terminal directly to the console port of the DMM; Advanced; Transcend Network Control Services for UNIX; Com Transcend
3-2 C HAPTER 3: C ONFIGURING THE ATM B ACKBONE S WITCH M ODULE Distributed Management Module The CoreBuilder 5000 Distributed Management Module (DMM) and Advanced DMM (ADMM) provide commands that allow you to configure and monitor the ATM Backbone SwitchModule. The ATM Backbone SwitchModule requires...
Page 47 - UNIX Tools for Configuring ATM Backbone SwitchModules; Selecting a launch point from one application to another; Transcend Network Management Software for Windows
Configuration Tools 3-3 Figure 3-1 UNIX Tools for Configuring ATM Backbone SwitchModules Transcend Network Control Services for UNIX applications are accessed by: ■ Selecting the application directly from the Tools menu of the network platform (for example, HP OpenView) ■ Selecting a launch point fr...
Page 48 - Windows Tools for Configuring ATM Backbone SwitchModules
3-4 C HAPTER 3: C ONFIGURING THE ATM B ACKBONE S WITCH M ODULE Figure 3-2 Windows Tools for Configuring ATM Backbone SwitchModules Transcend Network Management Software for Windows applications are accessed by: ■ Selecting the application directly from the Tools menu of the Network Platform (for exa...
Page 49 - Setting Up Direct; CoreBuilder 5000 Distributed Management Module User; Configuring TELNET
Setting Up DMM Access 3-5 Setting Up DMM Access This section provides procedures you must follow to set up access to DMM management tools. You can access the DMM by: ■ Direct terminal access ■ TELNET access Setting Up Direct Terminal Access to the DMM Refer to the CoreBuilder 5000 Distributed Manage...
Page 50 - Configuration Components
3-6 C HAPTER 3: C ONFIGURING THE ATM B ACKBONE S WITCH M ODULE Configuration Process Overview This section provides an overview of the following configuration information: ■ Configuration Components ■ Configuration Defaults Configuration Components ATM Backbone SwitchModule configuration consists of...
Page 51 - ATM Configuration; Changes to the ATM parameters can cause problems with; set atm slot uni_version version; ATM Backbone SwitchModule Command Reference for
Configuration Process Overview 3-7 ATM Configuration CAUTION: Changes to the ATM parameters can cause problems with system operation. Only qualified ATM service personnel should attempt to modify these parameters. We recommend that you do not attempt to change these parameters. Various ATM parameter...
Page 52 - LECs 2 through 8 are set to the following parameter values:
3-8 C HAPTER 3: C ONFIGURING THE ATM B ACKBONE S WITCH M ODULE ■ LECs 2 through 8 are set to the following parameter values: ■ Configuration mode is Manual. ■ Interface mode is Disabled. ■ ELAN Name is None. ■ Vbridge assignment is Unassigned. Configuring LAN Emulation Parameters The procedure you u...
Page 53 - Save the settings as follows:; save all; Repeat steps 1 and 2 for each LEC you require.; Verifying
Configuring ATM OC-3 Card Redundancy 3-9 2 Save the settings as follows: CB5000> save all 3 Repeat steps 1 and 2 for each LEC you require. 4 Assign a unique LES address for each bridgeport LEC on the same module. If a bridgeport LEC has an address configured that is a duplicate of another bridgep...
Page 54 - To enable IGMP snooping on the ATM Backbone SwitchModule:; (This displays the IP address you just created for vbridge 1.); CB5000> set vbridge 1 igmp_snooping mode enable
If you disable automatic failover and a primary ATM OC-3 card failure occurs, you must use the command in step 1 to make the redundant ATM OC-3 card active. There is a configurable feature called the loss of signalling delay. The default is 0 seconds, and the maximum is 60 seconds. PHY failover can ...
Page 55 - CB5000> show vbridge 1 igmp_snooping status; Save the parameter changes you made.
Configuring IGMP Snooping Parameters 3-11 3 View the status of IGMP snooping on a vbridge configured on the ATM backbone SwitchModule. For example, the following command displays the status of IGMP snooping on vbridge 1 on the ATM Backbone SwitchModule in slot 9: CB5000> show vbridge 1 igmp_snoop...
Page 58 - SHOW VBRIDGE; General vbridge configuration information; Displaying General Vbridge Configuration Information; You do not have to enter no_verbose to see the general information.; show vbridge all configuration no_verbose
4-2 C HAPTER 4: S TATUS M ONITORING AND S TATISTICS SHOW VBRIDGE Use the SHOW VBRIDGE command to display the following vbridge configuration information about the ATM Backbone SwitchModule: ■ General vbridge configuration information ■ Detailed vbridge configuration information ■ IGMP snooping infor...
Page 59 - Displaying Detailed Vbridge Configuration Information; show vbridge all configuration verbose
Using DMM/ADMM Commands 4-3 Displaying Detailed Vbridge Configuration Information The following command shows detailed vbridge configuration information about an ATM Backbone SwitchModule in a CoreBuilder 5000 hub: CB5000> show vbridge all configuration verbose Interface Number: 4 Interface Mode:...
Page 60 - Displaying IGMP Snooping Vbridge Information; command and the information; Other Vbridge IGMP Snooping Options
4-4 C HAPTER 4: S TATUS M ONITORING AND S TATISTICS Displaying IGMP Snooping Vbridge Information The following command shows IGMP snooping status information for vbridge 11 configured on an ATM Backbone SwitchModule installed in the hub: CB5000> show vbridge 11 igmp_snooping status IGMP Snooping ...
Page 61 - SHOW MODULE; show module 4.1 verbose
Using DMM/ADMM Commands 4-5 SHOW MODULE Use the SHOW MODULE command to display module-level information about the ATM Backbone SwitchModule. The following command shows detailed module information about an ATM Backbone SwitchModule in slot 4 of a CoreBuilder 5000 hub: CB5000> show module 4.1 verb...
Page 62 - Use the SHOW BRIDGE_PORT command to display:; Displaying General Status Information
4-6 C HAPTER 4: S TATUS M ONITORING AND S TATISTICS SHOW BRIDGE_PORT Use the SHOW BRIDGE_PORT command to display: ■ General status information for all bridge ports on the module ■ Detailed information about one bridge port on the module Displaying General Status Information The following command dis...
Page 63 - Displaying Detailed Information
Using DMM/ADMM Commands 4-7 Displaying Detailed Information The following command displays information about bridge port 2 on an ATM Backbone SwitchModule in slot 4 of a CoreBuilder 5000 hub: CB5000> show bridge_port 4.2 verbose Bridge Port Display for Module 6602M-MOD: BPort I/F Status Stp State...
Page 64 - SHOW COUNTER
4-8 C HAPTER 4: S TATUS M ONITORING AND S TATISTICS SHOW COUNTER BRIDGE_PORT Use the SHOW COUNTER BRIDGE_PORT command to display statistics for a bridge port on the module. The following command displays statistics about bridge port 2 on an ATM Backbone SwitchModule in slot 4 of a CoreBuilder 5000 h...
Page 65 - SHOW ATM
Using DMM/ADMM Commands 4-9 SHOW ATM Use the SHOW ATM command to display the following ATM information: ■ ATM Interface Parameters ■ ATM ILMI Configuration ■ ATM Q93b Parameters ■ ATM QSAAL Parameters ■ ATM Signal Configuration ■ ATM Statistics ■ ATM Traffic Description ■ ATM VCCs ATM Interface Para...
Page 66 - ATM ILMI; show atm 4 ilmi_configuration; Parameters
4-10 C HAPTER 4: S TATUS M ONITORING AND S TATISTICS ATM ILMI Configuration The following command displays information about the ATM ILMI configuration for an ATM Backbone SwitchModule in slot 4 of a CoreBuilder 5000 hub: CB5000> show atm 4 ilmi_configuration Slot Module Version Network General I...
Page 67 - ATM QSAAL
Using DMM/ADMM Commands 4-11 ATM QSAAL Parameters The following command displays information about ATM QSAAL parameters for an ATM Backbone SwitchModule in slot 4 of a CoreBuilder 5000 hub: CB5000> show atm 4 qsaal Slot Module Version Network General Information ------ ------------ ------- ------...
Page 68 - ATM Statistics
4-12 C HAPTER 4: S TATUS M ONITORING AND S TATISTICS ATM Statistics The following command displays ATM statistics for an ATM Backbone SwitchModule in slot 4 of a CoreBuilder 5000 hub: CB5000> show atm 4 statistics Slot Module Version Network General Information ------ ------------ ------- -------...
Page 69 - ATM VCCs; show atm 4 vcc all; BPORT_LEC Configuration
Using DMM/ADMM Commands 4-13 ATM VCCs The following command displays information about ATM VCCs for an ATM Backbone SwitchModule in slot 4 of a CoreBuilder 5000 hub: CB5000 > show atm 4 vcc all Slot Module Version Network General Information ------ ---------- ------- --------- -------------------...
Page 72 - Circuits
4-16 C HAPTER 4: S TATUS M ONITORING AND S TATISTICS BPORT_LEC Server Circuits The following command displays the server circuits for bridgeport-LEC 2 on an ATM Backbone SwitchModule in slot 4: CB5000> show bport_lec 4.2 server_circuits Bridge Port LEC Display for Module 6602M-MOD: BP LEC Mode I/...
Page 73 - SHOW SONET; SHOW SONET Status
Using DMM/ADMM Commands 4-17 SHOW SONET Use the SHOW SONET command to display the following ATM SONET information: ■ SHOW SONET Status ■ SHOW SONET Statistics SHOW SONET Status The following displays SONET status information for an ATM Backbone SwitchModule in slot 13: CB5000> show sonet 13.1 sta...
Page 75 - SHOW IGMP; command or IGMP
Using DMM/ADMM Commands 4-19 SHOW IGMP SNOOPING Use the SHOW IGMP SNOOPING command to display the IGMP snooping information on a module. You can view the IGMP snooping information on all of the modules installed in a CoreBuilder 5000 hub using the SHOW IGMP_SNOOPING MODULE ALL command or IGMP snoopi...
Page 76 - Manager
4-20 C HAPTER 4: S TATUS M ONITORING AND S TATISTICS Using Graphical Interface Tools Transcend ® Network Control Services provides advanced graphical management capabilities that enable you to monitor ATM Backbone SwitchModule operation and collect and display statistics. Transcend Network Control S...
Page 77 - Device Management; Device View; VLAN Manager
Using Graphical Interface Tools 4-21 Device Management for Hubs Device Management for Hubs allows you to display the operating status of a selected device, configure the device, or display statistics. When you launch Device Management for Hubs, an image of the selected device, known as Device View ,...
Page 79 - Overview
5 I NTERNET G ROUP M ANAGEMENT P ROTOCOL (IGMP) S NOOPING This chapter provides the following information about IGMP snooping: ■ Overview ■ CoreBuilder 5000 Support ■ Locating Multicast Routers in the Network ■ No Multicast Routers on the Network ■ Enabling IGMP Snooping on CoreBuilder 5000 SwitchMo...
Page 80 - 000 SwitchModule and your software
5-2 C HAPTER 5: I NTERNET G ROUP M ANAGEMENT P ROTOCOL (IGMP) S NOOPING Disabling IGMP snooping The default setting for IGMP snooping is enabled. To disable it, enter the SET VBRIDGE <X> IGMP_SNOOPING DISABLE command. Before implementing IGMP snooping Before you implement IGMP snooping within ...
Page 81 - Figure 5-1 shows a typical packet path before snooping occurs.; Multicast Packet Path before Snooping; The multicast MAC address filters
Overview 5-3 Figure 5-1 shows a typical packet path before snooping occurs. Figure 5-1 Multicast Packet Path before Snooping Eliminating unwanted IP multicast protocols IGMP snooping switch and multicast MAC address filters work together to eliminate unwanted IP multicast routing protocols as follow...
Page 82 - Format of an IGMP Version 1 Message; When IGMP snooping is running on a CoreBuilder; Multicast Packet Path after Snooping
5-4 C HAPTER 5: I NTERNET G ROUP M ANAGEMENT P ROTOCOL (IGMP) S NOOPING Figure 5-2 shows the format of a typical IGMP snooping version 1 message that is received after an IGMP snooping query in a multicast group has been completed. Figure 5-2 Format of an IGMP Version 1 Message When IGMP snooping is...
Page 83 - Multicast Open Shortest Path First (MOSPF); Queries
Overview 5-5 The result is that multicast traffic is flooded through a multicast group-specific subset of the switched fabric, namely that subset that contains either end stations that have joined the given multicast group, or multicast routers. The location of multicast group members is determined ...
Page 85 - FTE SwitchModule v1.2
Enabling IGMP Snooping on CoreBuilder 5000 SwitchModules 5-7 Enabling IGMP Snooping on CoreBuilder 5000 SwitchModules IGMP snooping can be enabled on the following CoreBuilder 5000 SwitchModules: ■ FTE SwitchModule v1.2 ■ GigaFTE SwitchModules IGMP snooping on a CoreBuilder 5000 SwitchModule When yo...
Page 86 - Figure 5-4 shows a typical FTE DRAM address forwarding entry.; FTE DRAM Address Forwarding Entry
5-8 C HAPTER 5: I NTERNET G ROUP M ANAGEMENT P ROTOCOL (IGMP) S NOOPING Figure 5-4 shows a typical FTE DRAM address forwarding entry. Figure 5-4 FTE DRAM Address Forwarding Entry Frame Tagging can be set on a CoreBuilder 5000 SwitchModule after it is enabled for IGMP snooping. FTE Address Forwarding...
Page 87 - ROUBLESHOOTING; Troubleshooting Base
6 T ROUBLESHOOTING This chapter describes: ■ Troubleshooting Using LEDs ■ Recovering from Problems ■ Resetting the ATM Backbone SwitchModule ■ Obtaining Technical Assistance Troubleshooting Using LEDs This section identifies possible causes and solutions for ATM Backbone SwitchModule LED indications...
Page 88 - When you press the LED test button:; Reading the Base Module LEDs; Base Module LED Status
6-2 C HAPTER 6: T ROUBLESHOOTING When you press the LED test button: 1 The Controller Module initiates a test to all modules in the hub. All LEDs should respond by lighting continuously for approximately 5 seconds. 2 During this time, the bi-color LEDs should alternate between green and yellow appro...
Page 89 - Determining Corrective Action; Base Module LED Corrective Actions
Troubleshooting Using LEDs 6-3 Determining Corrective Action Table 6-2 identifies appropriate corrective actions for each base module LED indication. Table 6-2 Base Module LED Corrective Actions LED LED State Possible Cause Corrective Action MOD STAT Green Normal operating indication. None required....
Page 90 - Troubleshooting ATM; ATM OC-3 Card LED Corrective Actions
6-4 C HAPTER 6: T ROUBLESHOOTING Troubleshooting ATM OC-3 Card LEDs This section explains how to read the ATM OC-3 card LEDs and determine appropriate corrective action The LEDs on the base module and ATM OC-3 cards function independent of each other. Table 6-3 identifies possible causes and correct...
Page 91 - Verify that the correct software versions are installed.; Verifying DMM
Recovering from Problems 6-5 Recovering from Problems Use the following procedure to recover from operating problems or module failure. Each of these steps is explained in more detail in the sections that follow. 1 Verify that the DMM can communicate with the ATM Backbone SwitchModule 2 Verify that ...
Page 92 - Remove and carefully reinsert the ATM Backbone SwitchModule.; Verifying Software
6-6 C HAPTER 6: T ROUBLESHOOTING If the ATM Backbone SwitchModule model number is not listed, try each of the following corrective actions: If the DMM can communicate with the ATM Backbone SwitchModule, proceed to Verifying Software Versions. 1 Reset the ATM Backbone SwitchModule by pressing the Res...
Page 93 - Verifying Critical; ELAN Name (LEC 1 default is Admin, default for other LECs None); Card Functions; Verify that the display lists the following indicators:
Recovering from Problems 6-7 Verifying Critical Parameters Verify that the settings of the following critical parameters match those of the ATM switch to which the ATM Backbone SwitchModule is connected: ■ UNI version (default is 3.0) ■ LEARP Quiet Time (default is 5 seconds) ■ Configuration mode (L...
Page 94 - Line Current Status; Verifying ATM; Use the following procedure to verify ATM signaling functions:; interface
6-8 C HAPTER 6: T ROUBLESHOOTING 3 Use the following command to check the following SONET status indicators: CB5000> show sonet <slot.phy_num> status Verify that the display lists status is OK for the following indicators: ■ Line Current Status ■ Section Current Status ■ Path Current Status...
Page 95 - Use the following command to display vcc parameters:; vcc all; Verify the following parameters settings:; Verifying LEC; Use the following procedure to verify the functions of a LEC:
Recovering from Problems 6-9 4 Use the following command to display vcc parameters: CB5000> show atm <slot> vcc all Verify the following parameters settings: ■ SIG is 0/5 ■ ILMI is 0/16 5 If necessary, use the following command to reset the ILMI parameter: CB5000> set atm <slot> il...
Page 96 - Configure
6-10 C HAPTER 6: T ROUBLESHOOTING 3 Use the following command to display the LAN/E status of the LEC: CB5000> show bport_lec <slot.lec> status Check the indication of the Interface State parameter. The possible status indications are: ■ Initial ■ Configure ■ Join ■ Bus connect ■ Operational...
Page 97 - Verifying Bridging; verbose; Verify that the bridge port is set to a valid vbridge (1 through 240).; Verifying Data; Use the following command to display ATM statistics:
Recovering from Problems 6-11 Verifying Bridging Configuration Use the following procedure to verify the bridging configuration of the ATM Backbone SwitchModule: 1 Use the following command to display information about the LEC bridging configuration. CB5000> show bridge_port <slot.lec> verb...
Page 98 - Switchover; parameter is not Enabled, use the; Using the Reset; Use the Reset button only if you suspect a problem with the
6-12 C HAPTER 6: T ROUBLESHOOTING Verifying ATM OC-3 Switchover If the Redundant ATM OC-3 card does not become active upon failure of the primary ATM OC-3, use the following command to verify that the PHY Automatic Failover parameter is Enabled: CB5000> show module <slot.phy> verbose If the...
Page 99 - Description of the problem
Obtaining Technical Assistance 6-13 Obtaining Technical Assistance You can receive assistance for installing and troubleshooting an ATM Backbone SwitchModule by calling either your 3Com reseller or 3Com network supplier. Be prepared to supply a representative with the following information: ■ Descri...
Page 101 - PECIFICATIONS; Environmental Specifications
A S PECIFICATIONS This appendix lists the following specifications for the CoreBuilder 5000 ATM Backbone SwitchModules: ■ Environmental Specifications ■ Mechanical Specifications ■ Power Specifications ■ ATM OC-3 Card Fiber Optic Specifications Environmental Specifications Table A-1 lists the ATM Ba...
Page 102 - ATM Backbone SwitchModule Fiber Optic Specifications
A-2 C HAPTER A: S PECIFICATIONS Power Specifications Table A-3 lists the ATM Backbone SwitchModule power specifications. ATM OC-3 Card Fiber Optic Specifications Table A-4 lists the ATM Backbone SwitchModule OC-3 fiber optic specifications. Table A-4 ATM Backbone SwitchModule Fiber Optic Specificati...
Page 103 - World Wide Web Site
B T ECHNICAL S UPPORT 3Com provides easy access to technical support information through a variety of services. This appendix describes these services. Information contained in this appendix is correct at time of publication. For the most recent information, 3Com recommends that you access the 3Com ...
Page 104 - Com FTP Site; anonymous; Com Bulletin Board; Country
B-2 A PPENDIX B: T ECHNICAL S UPPORT 3Com FTP Site Download drivers, patches, software, and MIBs across the Internet from the 3Com public FTP site. This service is available 24 hours a day, 7 days a week. To connect to the 3Com FTP site, enter the following information into your FTP client: ■ Hostna...
Page 105 - Access by Digital Modem; Call 3Com Facts using your Touch-Tone telephone:; Support from 3Com
Support from Your Network Supplier B-3 Access by Digital Modem ISDN users can dial in to the 3Com BBS using a digital modem for fast access up to 64 Kbps. To access the 3Com BBS using ISDN, call the following number: 1 847 262 6000 3Com Facts Automated Fax Service The 3Com Facts automated fax servic...
Page 106 - Product model name, part number, and serial number
B-4 A PPENDIX B: T ECHNICAL S UPPORT When you contact 3Com for assistance, have the following information ready: ■ Product model name, part number, and serial number ■ A list of system hardware and software, including revision levels ■ Diagnostic error messages ■ Details about recent configuration c...
Page 107 - To obtain an authorization number, call or fax:
Returning Products for Repair B-5 Returning Products for Repair Before you send a product directly to 3Com for repair, you must first obtain an authorization number. Products sent to 3Com without authorization numbers will be returned to the sender unopened, at the sender’s expense. To obtain an aut...
Page 109 - NDEX; Numbers
I NDEX 1 I NDEX Numbers 3Com bulletin board service (3Com BBS) B-23Com Facts B-33Com Knowledgebase Web Services B-13Com URL B-1 A ADMM version required 3-2 Architecture 1-4ATM cell construction 2-6Configuring 3-7Forum LANE 1.0 1-4Forum LEC MIB 1-4Forum specification compliance 1-2Forum UNI 3.0/3.1 1...
Page 113 - Com Corporation L; IMITED
3Com Corporation L IMITED W ARRANTY CoreBuilder ® 5000 ATM Backbone SwitchModule H ARDWARE 3Com warrants to the end user (“Customer”) that this hardware product will be free from defects in workmanship and materials, under normal use and service, for one (1) year from the date of purchase from 3Com ...