CoreBuilder 5000 ATM Backbone SwitchModule User Guide ® ® http://www.3com.
3Com Corporation 5400 Bayfront Plaza Santa Clara, California 95052-8145 Copyright © 1999, 3Com Corporation. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from 3Com Corporation.
CONTENTS ABOUT THIS GUIDE 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 ATM and LAN Documents 5 1 4 INTRODUCTION ATM Backbone SwitchModule Overview 1-1 ATM Backbone SwitchModule Features 1-1 Seamless ATM Migration 1-1 Multiple Redundancy Levels 1-2 ATM Forum Specification Compliance 1-2 CoreBuilder 5000 Chassis Compatibility 1-2 Switched Virtual Circuit Capacity 1-2 Emulated LAN (ELAN) Capacity 1-2
PacketChannel Backplane Description 1-8 Slot Restrictions Per Backplane 1-8 Sample ATM Backbone SwitchModule Configurations Basic Configuration 1-10 Dual-Homing Configuration 1-11 Dual-Homing/Module Redundancy Configuration 1-12 2 1-10 LAN EMULATION OVERVIEW General Definition of LAN Emulation 2-1 LAN Emulation Components 2-3 General LANE Components 2-3 LAN Emulation Client (LEC) 2-3 LAN Emulation Configuration Server (LECS) 2-3 LAN Emulation Server (LES) 2-3 Broadcast and Unknown Server (BUS) 2-4 ATM Ba
3 CONFIGURING THE ATM BACKBONE SWITCHMODULE 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 Windows Third-Party SNMP-Based Tools 3-4 Setting Up DMM Access 3-5 Setting Up Direct Terminal Access to the DMM 3-5 Configuring TELNET Access to the DMM 3-5 Configuration Process Overview 3-6 Configuration Components 3-6 LAN Emulation Configuration 3-6 Bridge Configuration 3-6 ATM Configu
ATM Interface Parameters 4-9 ATM ILMI Configuration 4-10 ATM Q93b Parameters 4-10 ATM QSAAL Parameters 4-11 ATM Signal Configuration 4-11 ATM Statistics 4-12 ATM Traffic Description 4-12 ATM VCCs 4-13 SHOW BPORT_LEC 4-13 BPORT_LEC Configuration 4-14 BPORT_LEC Statistics 4-15 BPORT_LEC Status 4-15 BPORT_LEC Server Circuits 4-16 BPORT_LEC LE_ARP Table 4-16 SHOW SONET 4-17 SHOW SONET Status 4-17 SHOW SONET Statistics 4-18 SHOW IGMP SNOOPING 4-19 Using Graphical Interface Tools 4-20 CoreBuilder 5000 Manager 4-2
6 TROUBLESHOOTING Troubleshooting Using LEDs 6-1 Troubleshooting Base Module LEDs 6-1 Verifying Base Module LED Operation 6-1 Reading the Base Module LEDs 6-2 Determining Corrective Action 6-3 Troubleshooting ATM OC-3 Card LEDs 6-4 Recovering from Problems 6-5 Verifying DMM Communication 6-5 Verifying Software Versions 6-6 Verifying Critical Parameters 6-7 Verifying ATM OC-3 Card Functions 6-7 Verifying ATM Signaling Functions 6-8 Verifying LEC Functions 6-9 Verifying Bridging Configuration 6-11 Verifying
B TECHNICAL SUPPORT Online Technical Services B-1 World Wide Web Site B-1 3Com Knowledgebase Web Services B-1 3Com FTP Site B-2 3Com Bulletin Board Service B-2 Access by Analog Modem B-2 Access by Digital Modem B-3 3Com Facts Automated Fax Service B-3 Support from Your Network Supplier B-3 Support from 3Com B-3 Returning Products for Repair B-5 INDEX 3COM CORPORATION LIMITED WARRANTY
FIGURES 1-1 1-2 1-3 1-4 1-5 1-6 2-1 2-2 2-3 2-4 2-5 2-6 2-7 2-8 3-1 3-2 5-1 5-2 5-3 5-4 ATM Backbone SwitchModule Hardware Components 1-4 ATM Backbone SwitchModule Base Configuration 1-6 ATM Backbone SwitchModule with Redundant ATM OC-3 Card 1-7 Example Base Configuration 1-10 Example Dual-Homing Configuration 1-11 Example Dual-Homing/Module Redundancy Configuration 1-12 LAN Emulation Function 2-2 ATM Backbone SwitchModule Function 2-2 General LAN Emulation Components 2-3 ATM Backbone SwitchModule LANE Co
TABLES 1 2 1-1 1-2 4-1 6-1 6-2 6-3 A-1 A-2 A-3 A-4 Notice Icons 2 Text Conventions 2 Supported Standards and MIBs 1-4 SwitchModule Installation Per Backplane 1-8 Other Vbridge IGMP Snooping Options 4-4 Base Module LED Status 6-2 Base Module LED Corrective Actions 6-3 ATM OC-3 Card LED Corrective Actions 6-4 Environmental Specifications A-1 Mechanical Specifications A-1 Power Specifications A-2 ATM Backbone SwitchModule Fiber Optic Specifications A-2
ABOUT THIS GUIDE 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.
2 ABOUT THIS GUIDE 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, or loss of data. Warning Warnings alert you to the risk of severe personal injury. Table 2 Text Conventions Convention Description Enter vs.
Related Documents 3 Table 2 Text Conventions (continued) Convention Description Text represented as screen display This typeface is used to represent displays that appear on your terminal screen. For example: NetLogin: Text represented as commands This typeface is used to represent commands that you enter. For example: SETDefault !0 -IP NETaddr = 0.0.0.0 Keys Specific keys are referred to in the text as Return key or Escape key, or they may be shown as [Return] or [Esc].
4 ABOUT THIS GUIDE ■ CoreBuilder 5000 Integrated System Hub Installation and Operation 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-Tolerant Controller Module. ■ CoreBuilder 5000 Distributed Management Module User Guide — Provides information on the CoreBuilder 5000 Distributed Management Module’s operation, installation, and configuration.
Related Documents ATM and LAN 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, March 1994. ■ Ahmed, M. and Tesink, K., Definitions of Managed Objects for ATM Management Version 8.0 using SMIv2, RFC 1695, Bell Communications Research, August 1994.
6 ABOUT THIS GUIDE
1 INTRODUCTION This chapter describes the features and components of the 3Com CoreBuilder® 5000 ATM Backbone SwitchModules and how ATM Backbone SwitchModules operate.
1-2 CHAPTER 1: INTRODUCTION 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 receiving light, the redundant ATM OC-3 card becomes active to maintain operations, if PHY switchover is enabled.
ATM Backbone SwitchModule Overview 1-3 Hot Swap Feature You can insert or remove ATM Backbone SwitchModules without powering off the CoreBuilder 5000 chassis.
1-4 CHAPTER 1: INTRODUCTION Supported Management Standards CoreBuilder 5000 ATM Backbone SwitchModules support the standards and MIBs shown in Table 1-1. Table 1-1 Standards MIBs ATM Backbone SwitchModule Architecture Supported Standards and MIBs ATM Forum UNI 3.0/3.1 ATM Forum LANE 1.0 IEEE 802.1D (Spanning Tree) IEEE 802.1H (Translation) IEEE 802.
ATM Backbone SwitchModule Architecture 1-5 The significant hardware components of the ATM Backbone SwitchModule include: Management Processor Packet Switch Processor Primary ATM OC-3 Card Redundant ATM OC-3 Card ■ Management Processor ■ Packet Switch Processor ■ Primary ATM OC-3 Card ■ Redundant ATM OC-3 Card The Management Processor performs processing functions that are not time critical.
1-6 CHAPTER 1: INTRODUCTION ATM Backbone SwitchModule Descriptions Base Hardware Configuration This section describes the base and redundant hardware configurations of the ATM Backbone SwitchModule. Figure 1-2 shows the ATM Backbone SwitchModule with only the primary ATM OC-3 card installed.
ATM Backbone SwitchModule Descriptions Redundant Hardware Configuration 1-7 Figure 1-3 shows the ATM Backbone SwitchModule with an optional redundant ATM OC-3 card installed.
1-8 CHAPTER 1: INTRODUCTION 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 you display hub information, the hub type is listed with the suffix -xP (x may be A or B) to identify this backplane, and the backplane type is listed as PacketChannel.
PacketChannel Backplane Description Table 1-2 1-9 SwitchModule Installation Per Backplane (continued) CoreBuilder 5000 Hub Backplane Hub Type* SwitchModule Installation and Operation 10-Slot PacketChannel (Part Number 30-0432) 3C96010C-AP 3C96010C-BP 3C96010CH-AP Install ATM Backbone SwitchModule in any slot in the hub. SwitchChannel (Part Number 30-0434) 3C96010C-AC 3C96010C-BC 3C96010CH-AC Install ATM Backbone SwitchModule in slots 1 through 8.
1-10 CHAPTER 1: INTRODUCTION Sample ATM Backbone SwitchModule Configurations Basic Configuration This section illustrates three basic configurations of the ATM Backbone SwitchModule: ■ Basic Configuration ■ Dual-Homing Configuration ■ Dual-Homing/Module Redundancy Configuration Figure 1-4 illustrates the basic configuration of an ATM Backbone SwitchModule with only a primary ATM OC-3 card.
Sample ATM Backbone SwitchModule Configurations Dual-Homing Configuration 1-11 Figure 1-5 illustrates the dual-homing configuration of an ATM Backbone SwitchModule with a redundant ATM OC-3 card.
1-12 CHAPTER 1: INTRODUCTION 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.
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 critical function is detected, the redundant ATM OC-3 card becomes active and the primary ATM OC-3 card is disabled.
1-14 CHAPTER 1: INTRODUCTION
2 LAN EMULATION OVERVIEW This chapter describes the LAN emulation technology that provides an interface between Ethernet and FDDI packet-based networks and ATM cell-based networks. This chapter contains the following sections: ■ General Definition of LAN Emulation ■ LAN Emulation Components ■ LAN Emulation Data Exchange ■ LAN Emulation Connections ■ LAN Emulation Operation This chapter provides a general overview of fundamental LAN emulation concepts and terminology.
2-2 CHAPTER 2: LAN EMULATION OVERVIEW LAN emulation (LANE) bridges Legacy LAN ATM backbone network Figure 2-1 Legacy LAN 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).
LAN Emulation Components LAN Emulation Components General LANE Components 2-3 This section identifies: ■ General LANE Components ■ ATM Backbone SwitchModule LANE Components The major components of ATM LAN emulation are identified in Figure 2-3.
2-4 CHAPTER 2: LAN EMULATION OVERVIEW 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 SwitchModule LANE Components Implementation of the LAN emulation components in the ATM Backbone SwitchModule is illustrated in Figure 2-4.
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 is a logical LAN grouping of LECs within an ATM network.
2-6 CHAPTER 2: LAN EMULATION OVERVIEW 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.
LAN Emulation Connections LAN Emulation Connections 2-7 LAN emulation uses VCCs (virtual channel connections) to provide communications between a LEC and the LANE service.
2-8 CHAPTER 2: LAN EMULATION OVERVIEW 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 ■ Multicast Forward VCC — A unidirectional VCC from the BUS to the LEC; typically, a point-to-multipoint connection from the BUS to multiple LECs Figure 2-8 illustrates the function of the three basic types of Data
LAN Emulation Operation LAN Emulation Operation 2-9 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.
2-10 CHAPTER 2: LAN EMULATION OVERVIEW 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 the ILMI Service Registry MIB of the attached ATM switch for one or more LECS ATM addresses. 3 Uses a predefined “well-known” LECS ATM address. The use of another LANE 1.
LAN Emulation Operation BUS Connection 2-11 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 address of the emulated LAN’s BUS. 2 Establishes connections to the BUS for transmitting and receiving multicast and unknown unicast traffic.
2-12 CHAPTER 2: LAN EMULATION OVERVIEW
3 CONFIGURING THE ATM BACKBONE SWITCHMODULE This chapter provides procedures for configuring the CoreBuilder® 5000 ATM Backbone SwitchModule.
3-2 CHAPTER 3: CONFIGURING THE ATM BACKBONE SWITCHMODULE 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 DMM/ADMM Version v5.20 or later.
Configuration Tools Operating systems SunOS, Solaris, HP Network management platforms 3Com management application HP OpenView, SunNet Manager Transcend® Network Control Services for UNIX Tools accessible from network management platform Tools menu CoreBuilder® 5000 Manager Device View Alternative launch point Figure 3-1 3-3 Bridge Management VLAN Manager Alternative launch point UNIX Tools for Configuring ATM Backbone SwitchModules Transcend Network Control Services for UNIX applications are
3-4 CHAPTER 3: CONFIGURING THE ATM BACKBONE SWITCHMODULE Operating systems Windows 95, Windows NT Network management platforms 3Com management application HP OpenView for Windows Transcend® Network Management Software for Windows Tools accessible from network management platform Tools menu CoreBuilder® 5000 Manager Bridge Management VLAN Manager Alternative launch point Device View (embedded) Figure 3-2 Windows Tools for Configuring ATM Backbone SwitchModules Transcend Network Management Softw
Setting Up DMM Access Setting Up DMM Access 3-5 This section provides procedures you must follow to set up access to DMM management tools. You can access the DMM by: Setting Up Direct Terminal Access to the DMM Configuring TELNET Access to the DMM ■ Direct terminal access ■ TELNET access Refer to the CoreBuilder 5000 Distributed Management Module User Guide for procedures to set up a direct terminal connection to the DMM.
3-6 CHAPTER 3: CONFIGURING THE ATM BACKBONE SWITCHMODULE Configuration Process Overview Configuration Components This section provides an overview of the following configuration information: ■ Configuration Components ■ Configuration Defaults ATM Backbone SwitchModule configuration consists of three main components, described in the following sections: LAN Emulation Configuration Defines up to 64 LECs (LAN Emulation Clients) and assigns each to a unique ELAN.
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 parameters are available to control ATM operating characteristics but, with the exception of the UNI Version parameter, ATM parameters typically do not require modification.
3-8 CHAPTER 3: CONFIGURING THE ATM BACKBONE SWITCHMODULE ■ Configuring LAN Emulation Parameters Automatic Bridgeport-LEC Configuration Mode 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. The procedure you use to configure the LAN Emulation parameters for a LAN Emulation Client depends on whether the LEC is configured for automatic or manual configuration.
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 bridgeport LEC, it never joins the ELAN. For a complete list of optional DMM LAN Emulation commands and parameters, see the ATM Backbone SwitchModule Command Reference.
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 take from 0 through 60 seconds when the automatic failover feature is enabled. The command is: CB5000> set atm .
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_snooping status 4 Save the parameter changes you made.
3-12 CHAPTER 3: CONFIGURING THE ATM BACKBONE SWITCHMODULE
4 STATUS MONITORING STATISTICS AND This chapter describes the tools that you can use to monitor module status and gather statistics that help you to analyze the CoreBuilder® 5000 ATM Backbone SwitchModule and network performance. This chapter contains the following sections: Using DMM/ADMM Commands ■ Using DMM/ADMM Commands ■ Using Graphical Interface Tools You can use the following DMM/ADMM commands to display configuration and status information about the ATM Backbone SwitchModule and its ports.
4-2 CHAPTER 4: STATUS MONITORING AND STATISTICS 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 information on a vbridge Displaying General Vbridge Configuration Information The following command shows general vbridge configuration information about an ATM Backbone SwitchModule in a CoreBuilder 5000 hub: Yo
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: Interface Mode: Aging Time: Learned Entry Discards: Spanning Tree Priority: Spanning Tree Bridge Max Age: Spanning Tree Bridge Forward Delay: Spanning Tree Bridge Hello Time: Spanning Tree Hold Time: Spanning Tree Max Age: Spannin
4-4 CHAPTER 4: STATUS MONITORING AND STATISTICS 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 Status of VBridge 11 -----------------------------------------------------------IGMP Snooping ENABLED IGMP Querying ENABLED Port Aging Time (seconds) 300 Querier IP Address 0.0.0.
Using DMM/ADMM Commands SHOW MODULE 4-5 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 verbose Slot Module Version ------ ------------ ------04.01 6602M-MOD 3.
4-6 CHAPTER 4: STATUS MONITORING AND STATISTICS 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 displays information about all defined bridge ports (LECs) on an ATM Backbone SwitchModule in slot 4 of a CoreBuilder 5000 hub: CB5000> show bridge_port 4.
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 ----04.
4-8 CHAPTER 4: STATUS MONITORING AND STATISTICS 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 hub: CB5000> show counter bridge_port 4.2 interface Interface Statistics for Module 6602M-MOD Bridge Port 4.
Using DMM/ADMM Commands SHOW ATM ATM Interface Parameters 4-9 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 The following command displays information about ATM interface parameters for an ATM Backbone SwitchModule in slot 4 of a CoreBuilder 5000 hub: CB5000> show atm 4 interface Slot Module
4-10 CHAPTER 4: STATUS MONITORING AND STATISTICS 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 ------ ------------ ------04 6602M-MOD 3.
Using DMM/ADMM Commands ATM QSAAL Parameters 4-11 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 ------ ------------ ------04 6602M-MOD 3.
4-12 CHAPTER 4: STATUS MONITORING AND STATISTICS 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 ------ ------------ ------04 6602M-MOD 3.
Using DMM/ADMM Commands 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 -----04 Module ---------6602M-MOD VCC Status ------------0/5 UP 0/16 UP 0/105 UP 0/106 UP 0/107 UP 0/108 UP 0/109 UP 0/110 UP 0/111 UP 0/112 UP 0/113 UP SHOW BPORT_LEC 4-13 Version ------3.
4-14 CHAPTER 4: STATUS MONITORING AND STATISTICS BPORT_LEC Configuration The following command displays configuration information for bridgeport-LEC 2 on an ATM Backbone SwitchModule in slot 4 of a CoreBuilder 5000 hub: CB5000> show bport_lec 4.2 configuration Bridge Port LEC Display for Module 6602M-MOD: BP LEC --------04.
Using DMM/ADMM Commands BPORT_LEC Statistics 4-15 The following command displays statistics for bridgeport-LEC 2 on an ATM Backbone SwitchModule in slot 4 of a CoreBuilder 5000 hub: CB5000> show bport_lec 4.2 statistics Bridge Port LEC Display for Module 6602M-MOD: BP LEC --------04.
4-16 CHAPTER 4: STATUS MONITORING AND STATISTICS 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 --------04.
Using DMM/ADMM Commands SHOW SONET SHOW SONET Status 4-17 Use the SHOW SONET command to display the following ATM SONET information: ■ SHOW SONET Status ■ SHOW SONET Statistics The following displays SONET status information for an ATM Backbone SwitchModule in slot 13: CB5000> show sonet 13.1 status Slot Module Version ------ ------------ ------04 6602M-MOD 3.
4-18 CHAPTER 4: STATUS MONITORING AND STATISTICS SHOW SONET Statistics The following command displays SONET statistics for an ATM Backbone SwitchModule in slot 7: CB5000> show sonet 7.1 statistics interval all Slot Module Version ------ ------------ ------04 6602M-MOD 3.
Using DMM/ADMM Commands SHOW IGMP SNOOPING 4-19 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 snooping information on a specific module using the SHOW IGMP_SNOOPING MODULE command.
4-20 CHAPTER 4: STATUS MONITORING AND STATISTICS 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.
Using Graphical Interface Tools Device Management for Hubs 4-21 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, appears. The Device View depicts the current configuration of the device. For example, ports displayed on the Device View are color-coded to indicate the current state of the port.
4-22 CHAPTER 4: STATUS MONITORING AND STATISTICS
5 INTERNET GROUP MANAGEMENT PROTOCOL (IGMP) SNOOPING This chapter provides the following information about IGMP snooping: Overview ■ Overview ■ CoreBuilder 5000 Support ■ Locating Multicast Routers in the Network ■ No Multicast Routers on the Network ■ Enabling IGMP Snooping on CoreBuilder 5000 SwitchModules The Internet Group Management Protocol (IGMP) runs between hosts and their immediate neighboring multicast routers.
5-2 CHAPTER 5: INTERNET GROUP MANAGEMENT PROTOCOL (IGMP) SNOOPING Disabling IGMP snooping Before implementing IGMP snooping The default setting for IGMP snooping is enabled. To disable it, enter the SET VBRIDGE IGMP_SNOOPING DISABLE command. Before you implement IGMP snooping within your network, be aware of how the CoreBuilder® 5000 SwitchModule and your software vendor’s multicast applications function with respect to IGMP.
Overview 5-3 Figure 5-1 shows a typical packet path before snooping occurs.
5-4 CHAPTER 5: INTERNET GROUP MANAGEMENT PROTOCOL (IGMP) SNOOPING 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.
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 by snooping on the IGMP/IP report packets sent from the hosts. This information is aged out and refreshed by hearing new reports.
5-6 CHAPTER 5: INTERNET GROUP MANAGEMENT PROTOCOL (IGMP) SNOOPING CoreBuilder 5000 Support The CoreBuilder 5000 supports 46 IP multicasting groups by IP relay. If no multicast router is detected, the CoreBuilder 5000 hub acts as an IGMP querier to allow the network to determine hosts that are members of a group. The CoreBuilder 5000 allows the user to create ports in the vbridge that are classified as router ports. This ensures that multicast data is always flowing over the link.
Enabling IGMP Snooping on CoreBuilder 5000 SwitchModules Enabling IGMP Snooping on CoreBuilder 5000 SwitchModules IGMP snooping on a CoreBuilder 5000 SwitchModule 5-7 IGMP snooping can be enabled on the following CoreBuilder 5000 SwitchModules: ■ FTE SwitchModule v1.2 ■ GigaFTE SwitchModules When you enable IGMP snooping on either an FTE SwitchModule, v1.2, or a GigaFTE SwitchModule, the IP multicast bit is enabled in the module’s Receive Control Register.
5-8 CHAPTER 5: INTERNET GROUP MANAGEMENT PROTOCOL (IGMP) SNOOPING Figure 5-4 shows a typical FTE DRAM address forwarding entry.
6 TROUBLESHOOTING This chapter describes: Troubleshooting Using LEDs Troubleshooting Base Module LEDs ■ Troubleshooting Using LEDs ■ Recovering from Problems ■ Resetting the ATM Backbone SwitchModule ■ Obtaining Technical Assistance This section identifies possible causes and solutions for ATM Backbone SwitchModule LED indications.
6-2 CHAPTER 6: TROUBLESHOOTING 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 approximately every ½ second. See Appendix B for instructions about contacting 3Com Technical Support for your product.
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. Off No power to hub. Check the controller module power LEDs. The hub does not have enough Add another power supply to the hub.
6-4 CHAPTER 6: TROUBLESHOOTING 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 corrective actions for each LED state. Table 6-3 ATM OC-3 Card LED Corrective Actions LED LED State Possible Cause Corrective Action TX Green ATM signal detected. None required.
Recovering from Problems Recovering from Problems 6-5 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 the correct software versions are installed. 3 Verify that the critical configuration parameters settings of the ATM Backbone SwitchModule match those of the ATM switch to which it is connected.
6-6 CHAPTER 6: TROUBLESHOOTING 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 Reset button on the module front panel (refer to Resetting the ATM Backbone SwitchModule later in this chapter). 2 Remove and carefully reinsert the ATM Backbone SwitchModule.
Recovering from Problems Verifying Critical Parameters 6-7 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.
6-8 CHAPTER 6: TROUBLESHOOTING 3 Use the following command to check the following SONET status indicators: CB5000> show sonet status Verify that the display lists status is OK for the following indicators: ■ Line Current Status ■ Section Current Status ■ Path Current Status 4 Record any indications that are not as expected and proceed to Verifying ATM Signalling Functions.
Recovering from Problems 6-9 4 Use the following command to display vcc parameters: CB5000> show atm 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 ilmi pvc 0/16 ATM commands do not take effect until you reset the module. Use the DMM RESET MODULE command to enable any ATM parameter changes.
6-10 CHAPTER 6: TROUBLESHOOTING 3 Use the following command to display the LAN/E status of the LEC: CB5000> show bport_lec status Check the indication of the Interface State parameter. The possible status indications are: ■ Initial ■ Configure ■ Join ■ Bus connect ■ Operational If the Interface State is Operational, the LEC and ATM parameters are configured correctly. If there is any other indication, record the result and continue with the procedure.
Recovering from Problems Verifying Bridging Configuration 6-11 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 verbose Verify that the bridge port is set to a valid vbridge (1 through 240). If the bridge port is not set to a valid vbridge, use the following command to reset it to the correct vbridge: CB5000> set bridge_port
6-12 CHAPTER 6: TROUBLESHOOTING 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 verbose If the PHY_Automatic_Failover parameter is not Enabled, use the following command to enable it: CB5000> set module .
Obtaining Technical Assistance Obtaining Technical Assistance 6-13 You can receive assistance for installing and troubleshooting an ATM Backbone SwitchModule by calling either your 3Com reseller or 3Com network supplier.
6-14 CHAPTER 6: TROUBLESHOOTING
A SPECIFICATIONS This appendix lists the following specifications for the CoreBuilder 5000 ATM Backbone SwitchModules: Environmental Specifications ■ Environmental Specifications ■ Mechanical Specifications ■ Power Specifications ■ ATM OC-3 Card Fiber Optic Specifications Table A-1 lists the ATM Backbone SwitchModule environmental specifications.
A-2 CHAPTER A: SPECIFICATIONS Power Specifications Table A-3 lists the ATM Backbone SwitchModule power specifications. Table A-3 Power Specifications Unit Model Number +5 Volts +12 Volts Base Module 3C96602M-MOD * 60 W 5W Redundant ATM OC-3 Card 3C96601D-155SC-MM 5W 0W * Includes one ATM OC-3 card (3C96601D-155SC-MM) installed on the base module. ATM OC-3 Card Fiber Optic Specifications Table A-4 lists the ATM Backbone SwitchModule OC-3 fiber optic specifications.
B TECHNICAL SUPPORT 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 Corporation World Wide Web site.
B-2 APPENDIX B: TECHNICAL SUPPORT 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: ■ Hostname: ftp.3com.com ■ Username: anonymous ■ Password: You do not need a user name and password with Web browser software such as Netscape Navigator and Internet Explorer.
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 service provides technical articles, diagrams, and troubleshooting instructions on 3Com products 24 hours a day, 7 days a week.
B-4 APPENDIX B: TECHNICAL SUPPORT 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 changes, if applicable Here is a list of worldwide technical telephone support numbers: Country Telephone Number Country Telephone Number Asia, Pacific Rim Australia Hong Kong India Indonesia Japan Mala
Returning Products for Repair Returning Products for Repair B-5 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.
B-6 APPENDIX B: TECHNICAL SUPPORT
INDEX INDEX Numbers C 3Com 3Com 3Com 3Com Configuration ATM 3-7 automatic mode 3-8 basic 1-10 Bridge 3-6 defaults 3-7 dual-homing 1-11, 1-12 LANE 3-6, 3-8 manual mode 3-8 module redundancy 1-12 process components 3-6 redundancy 3-9 tools 3-1 CoreBuilder 5000 hub slot restrictions 1-8 type 1-8 bulletin board service (3Com BBS) B-2 Facts B-3 Knowledgebase Web Services B-1 URL B-1 A ADMM version required 3-2 Architecture 1-4 ATM cell construction 2-6 Configuring 3-7 Forum LANE 1.
2 INDEX H N Hardware base configuration 1-6 redundant configuration 1-7 Hot swapping 1-3 Network supplier support B-3 O Online technical services B-1 I IEEE 802.1D 1-4 802.1H 1-4 802.
INDEX Spanning Tree Protocol IEEE 802.
4 INDEX
3Com Corporation LIMITED WARRANTY CoreBuilder® 5000 ATM Backbone SwitchModule HARDWARE 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 or its authorized reseller.
WARRANTIES EXCLUSIVE IF A 3COM PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, CUSTOMER'S SOLE REMEDY FOR BREACH OF THAT WARRANTY SHALL BE REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASE PRICE PAID, AT 3COM'S OPTION.
