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3Com 4.2.2 manual 8CHAPTER 6 Network Troubleshooting Tasks

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Troubleshooting 8The NNIx Bar Chart PDP is not running Error Administrative Configuration Common Startup Problems To access the window FSetup Tool Device Snmp Community Setting Lecs Recovery

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6-8CHAPTER 6: NETWORK TROUBLESHOOTING TASKS

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3Com 4.2.2 manual 8CHAPTER 6 Network Troubleshooting Tasks

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Version 4.2.2 for Unix 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents Using the ATM and Vlan Management Application Vlan Moves 5 Moving Ethernet Segments Between VLANs Color Status and Propagation 6 LEC 7 Lane User 7 Switch Domain Statistics Tracing a VC Path Between Two ATM End Nodes 6Lane Component Statistics Glossary Index Viii How to Use IntroductionThis Guide List conventions that are used throughout this guide ConventionsOrganization of the ATM and Vlan Management User Guide Text Conventions Equipment About this Guide ATM and Vlan Manager 14CHAPTER ATM and Vlan What is ATMManagement? Management Tools Assistants or Wizards Vlan Management Functions What is ATM and Vlan Management? ATM and Vlan Management MapsMap 1ATM Device Manager Map 2ATM Switch Graph Assistant Window Zoom icon Cross Reference icon 4ATM Network Map Main Display 5ATM Switch Map 6Access to the ATM Network Map through the Topology Browser LAN Emulation provides 7LAN Emulation Map Main Display 8LAN Emulation Submap/Backbone and Services Window ATM and Vlan Management Maps Virtual LANs Map 10The Virtual LANs Map Main Display 11The Virtual LANs Submap Displaying Ethernet Segments 16CHAPTER 1 ATM and Vlan Management Overview 13The ATMvLAN Policies Map 14Access to the ATMvLAN Policies Map using the Topology Tool 15The ATM and Vlan Gigabit Network Map Management Tools ATM and Vlan Application Toolbar, see page 1-21, includes Http//machineipaddress/7689/WebBase Icon Display Icon Name Description Topology Tool 17The ATMvLAN Toolbar 24CHAPTER 1 ATM and Vlan Management Overview ATM and Vlan Management Tools 26CHAPTER 1 ATM and Vlan Management Overview Topology Tool ATMvLAN Objects Toolbar Bandwidth Tool See for a detailed description of the Bandwidth Tool 19The Network Node Interface Traffic Tools Report Tool 20The Network Node Interface Tabular Tool Locator Tool 21The Locator Tool Users Tool 22The Build UDB Tool Profile Tool 23The VnPro Tool 24VnPRo Save As dialog box ATM and Vlan Management Tools FSetup Tool Tasks Tool 26Fast Setup Wizard Step 27Fast Setup Wizard Step 28Fast Setup Wizard Step 29Fast Setup Wizard Step 30Fast Setup Wizard Step 31Fast Setup Wizard Step NMS Setup 34NMS Setup Delegation PDP Click Next. is displayed as in Figure 46CHAPTER 1 ATM and Vlan Management Overview 37NMS Setup Locator Assistants ConfigurationManagement Assistants NMSetup Values in a step by step procedureNMSetup To configure the Snmp SmartAgents on Devices Devices 1Configuring Snmp Community Settings Device Snmp Community Setting Starting the Poller Locally Starting the Poller on Multiple Distributed Machines Configuring Snmp SmartAgents on Devices An Example of Distributed Polling VLANs in ATM Configuration forDevice Networks CB7000 Fast Setup Tool Vlans in Non-ATM Virtual LANs Manager Login to the Unix Workstation and Start the OVWStarting Up Management Application Common Startup Problems Verify that your network is up and runningCustomize the Vlan colors and aliases 3Virtual LANs Configuration Assistant 2ATMvLAN Customization Files Filename Description Restart the ATM Vlan Application Select ATMvLAN -- Load Transcend ATMvLAN Maps Page Navigating ATM Vlan Maps 1Window Access From the Root Window Window Name Select Action Description 2Window Access from the ATMvLAN Devices Map Coded according to its current status in the network 3SuperStack II Switch 4CoreBuilder Front Panel Display 5CoreBuilder 2500 Module Device Manager Front Panel Display 6ATM SuperStack II Switch 2700 Array Window Name Select Action 8The VN-elan window 4Window Access from the Vn-elan Map 9Cross Referencing VLANs in the Transcend Topology Browser Lane User Double click, or from LES ATM Network ATM Switch Double click, or from ATMvLAN menu select the Move Newly assigned policy Icon 13The ATMvLAN Toolbar Backbone and Services Configuration Assistant Manual Device Discovery Configuration Assistant Vlan Aliases and Colors Configuration Assistant Data Direct 14This Window Displays the VC Path Between Two LE Clients Using the ATM and Vlan Assistants 20CHAPTER 3 Using the ATM and Vlan Management Application II Vlan Manager 22CHAPTER Configuring Manual DeviceDiscovery 2CHAPTER 4 Network Configuration Tasks 1Manual Discovery Setup Window Manual Discovery window is displayed in Figure Deleting Devices Adding DevicesModifying Devices Clearing the Entire Database 2Locator Tool Manual Discovery Database 3The Backbone and Services Configuration Window To access the Backbone and Services Configuration Assistant Click Apply 8CHAPTER 4 Network Configuration Tasks Lane Redundancy Planning and Setup Guidelines Workaround LES Failure Resolution Pre-conditions for Lane Redundancy to Take Effect How Does The Primary LES Regain Control of the ELAN? Restoring Lane Clients To Use The Primary LES Manually Modifying Lane Redundancy Manually Returning the Clients LECs Back to the Primary LES How Do Lane Clients Take Advantage of Multiple LECSs? An Example of Setting Up and Activating Lane Redundancy Configuring LAN Emulation Services 5The Backbone and Services Window Configuring LAN Emulation Services Lecs Recovery Quick Lane Redundancy 6Virtual LANs Configuration Assistant for Aliases and Colors Vlan Names field lists all the VLANs that have been defined Retaining Vlan Aliases and Colors Viewing the Vlan Aliases and Colors Database Policy-based Vlan Auto-configurationConfiguration in ATM based Vlan environments Grouped together as a layer 2 broadcast domain Stand-alone NT based Vlan Server Integrated TEM/Unix or TEM/NT Based Vlan Server Configuring MAC Based Vlan Auto-configuration Policy 8The Build UDB Tool Mapping a MAC Address to a Vlan Using the MACvDBFinding a MAC Address Searching the MACvDB Modifying the MACvDB Vlan Configuring IP Verify that Automatic Vlan Auto-configuration is ActivatedSubnet-based Vlan Configuring Start the Locator Tool and select the SubnetVdb tabBased policies Modifying the Subnet Moving Devices into the IP Subnet-based Policy 10The Locator Tool Subnet vDB Networks Configuring IP Subnet-based Vlan Auto-configuration Searching the Vlan Server Scalar Parameters Server Member Table Searching the Vlan Server Member Table 12The Locator Tool Vlan Server Member Table LEC Configuration Parameter and Status Assistant Configuring orAdministrative Viewing 13The LEC Configuration Dialog Box 1Configuration Parameters Parameters Meaning LE Server Parameters & Status Configuration Assistant 4LEC Configuration Window Actions LES Status is 5LES ParametersWindow Actions Ethernet Port Parameters & Status Configuration Assistant 15The LsEthPort Parameters Configuration Assistant ATM Port Parameters & Status Port parameters arePort Status is 8Port Parameters To access the window 10Port Parameters SuperStack II Switch 2700 Parameter and Status Information 12Window ActionsPage System information is Chassis information isCoreBuilder 7000 Module ATM Port Parameters & Status 18CoreBuilder Module ATM Port Parameters & Status 16Port Parameters 17 Port Status 18Window Actions 19CoreBuilder Parameter and Status Configuration Assistant CoreBuilder 7000 Module Parameter and Status Information 19System Information 20Chassis Information21 Window Actions CoreBuilder 7000 Module Switch Board Parameters & Status 23Module Status Module Status is22Module Parameters 24Window Actions Locate the ATM Devices Display Existing VCsEstablishing Permanent Virtual Channels New PVC is displayed in the window Pinpointing Channel Congestion Interfaces located on two different Switch Domain windows 22The Virtual Path window Configuring PVCs 62CHAPTER 4 Network Configuration Tasks Segments Between Vlan MovesMoving Ethernet VLANs Using the Vlan Move Operation To locate Ethernet segments Virtual LANs Window is displayed as in Figure 2The VNname window 3The Vlan Move window Using the LAN Emulation Window Locating Ethernet Segments Using the Hpov Locate OptionDrag-and-Drop Ethernet Segments Between Vlan Windows Drag-and-Drop on Front Panel Window 4SuperStack II Switch 2700 Front Panel Display Automatic Vlan Moves Based on Policies Removing a Port from a Protocol-based Vlan Snooping Configuration Performing Policy-based Vlan Moves Null PolicyATM and Vlan Policies Map Enabling Disabling Ports Manual Lecs DatabaseModification Manual Lecs Database Modification 16CHAPTER 5 Network Modification Tasks Color Status PropagationVlan Management software Indicates operating statuses of the ATMvLAN Device icons TroubleshootingDevice Level 5000, CoreBuilder 2500/6000, LANplex 2016/5000 Lane Level 3Color Key for Lane Level Troubleshooting icons 4Color Key for Network icons5Color Key for Virtual LANs Icons Indications in the Backbone and Services Window Indications in the Vlan Map Identifying Performance ProblemsPath Assistants for Connectivity End Nodes 8CHAPTER 6 Network Troubleshooting Tasks Network Performance Measurement Tasks 1The NNIx Browser NNIx Map 4CHAPTER 7 Network Performance Measurement Tasks Map Configuration Tab 3The NNIx Configuration Map Tab NNIx Traffic Polling Configuration Tab 4The NNIx Polling Configuration Tab Communication Configuration Tab NNIx Communication Configuration Tab History Configuration Tab Simulation Configuration TabPage 8The NNIx Bar Chart 10The NNIx Cumulative Pie Chart Displaying Statistics To display statistics 11CoreBuilder Statistics Displaying Port Level Statistics 1Traffic Graphs 2Total Frames3Good Frames Statistics Information for load balancing when requiredLane Component Lane User 13LES Graph Assistant 18CHAPTER 7 Network Performance Measurement Tasks Select the Graph Assistant option from the ATMvLAN menu 14LEC Graph Assistant Select the Graph Assistant from the ATMvLAN menu 15Statistic of Lane User Group Window 16LANE User Statistics Graph Zoom Display Switch Domain To display the statistics from an ATM switchSelect the ATM switch icon Supported Devices Table A-0Supported Devices Connectivity form Fast Ethernet to ATM. It Window Not Problem Generated System ProblemsIcons Present at Problem Startup Action Set Operation Failed Problem Slow System Startup ProblemSnmp set operation failed Table B-1System Messages Message Type Meaning Action They are not defined on System Messages B-5 Lecs Configuration Snmp SET error System Messages B-7 PDP is not running Error ATM and Vlan Management Basics Role of Edge Devices Virtual Channels Two levels of virtual channels are supported at the UNI Figure C-1Virtual Path/Channels Connections Table C-2Comparison of SVC and PVC SVC PVC Integrated ATM/Ethernet Switching Vlan Type 3Com Product ATM-based VLANs Lecs Admin and Default VLANs Figure C-3LAN Emulation Components Non-ATM VLANs Tag-based VLANs Protocol-based VLANSProtocol-based VLANs Table C-1 Protocol Suite Protocol Types 14APPENDIX C ATM and Vlan Management Basics Glossary Glossary Network Platform NMP NetworkSmartAgent Glossary Index LES C NNI C JDK 1 MTU ONcore Switch Module 2 -1, 2 -3, 2 -8, 2 -9 Oper Status 4 Topology Tool 1 10, 1 20, 1 23, 3 VPI C 3, C

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