Troubleshooting, 127 | 3Com DSA-3CV1100-02 guide

Proper Selection of Power Cord	45
Selection Du Cable D'alimentation	46
Richtige Auswahl des Stromkabels	46

Troubleshooting 47

3MANAGING THE VCN ACCESS CONCENTRATOR

Real Time LED Indications 49

Using the Management Terminal for Local and Central Management 50

Management Terminal Requirements				50
Connecting the PC Terminal Emulator				51
Line Card Management			52
Local Menus		52
Loading a New Software Release Through the LMA					72
Central Management			80
Overview	80
Central Management Menus in the LMA Interface					82
Central Management Via Telnet 104
Telnet Menus		106
Remote Software Download 112
Overview	112
Requirements		112
Procedure	113
Solving Problems in Remote Software Download					122

ATROUBLESHOOTING

Power-on Self Test (POST)		125
Using Front Panel LEDs to Solve Problems 126
Using a PC Terminal Emulator to Solve Problems			127
Ethernet Traffic Counters		127
HDLC Traffic Counters		128
Abnormal Indications from Traffic Counts			129
Error Messages	129
Telnet Connection Problems		130
Inability to Connect 130
Broken Session	131

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3Com DSA-3CV1100-02 service manual Troubleshooting, 127, Inability to Connect Broken Session 131

Contents

Visitor and Community Network Access Concentrator Release 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents 127 Troubleshooting130 Inability to Connect Broken Session 131 3Com FTP Site 142 Online Technical Services 141 World Wide Web Site143 Page List conventions that are used throughout this guide ConventionsIcon Description Related DocumentationYear Compliance Major Features Benefits FeaturesVisitor Community Overview Applications MTU/MDU Application VCN AC Features VCN AP VCN AC Front Panel Features Real Time LED Indications Local ManagementVCN AC Front Panel LEDs State Used to Central Management Remote Management Overview Installing the VCN Access Concentrator Safety Precautions Sécurité Précautions deSicherheitsvorkeh- rungen For the VCN Access Visitor and Community Network system is installedPreparing the Site Concentrator Installing the VCN Access Concentrator Punch-down Block with a Patch Panel Installing the VCN Access Concentrator Punch-Down Block Without a Patch Panel VCN Access Point Rear Panel Installing the VCN Access Concentrator Repeat through for up to 24 telephone lines Access Concentrator 19-inch rack. in the 19-inch Rack VCN Access Concentrator Accessory SetCable Kit Part Quantity Fitting a Bracket for Rack Mounting Back Panel Connections Displays the rack after it has been wire connected Front Panel Connections Is P Line Cards in the VCN Access Concentrator Patch Panel blocks at the back with RJ-21 connectorsPin Assignment for the RJ-21 Connector VCN AC Port No First Pin Second Pin Female RJ-21 Connector VCN Access Concentrator Unit Installed Without a Patch Panel Inserting MAC Addresses for VCN Access Concentrator Ports Sequence of ConfigurationGeneral guidance is provided for non-SuperStack switches Installing the VCN Access Concentrator VCN AC Port and VCN AP MAC Addresses Port No. MAC Address Installing the VCN Access Concentrator Automated Procedures for SuperStack II 1100/3300 ConfApp screen appears Figure ConfApp Screen Entering the Switch Address Community Parameter Removing Wrong Address Ethernet Switch Powering UpVCN Access SPE-3, SPT-3, G, W Troubleshooting Installing the VCN Access Concentrator Real Time LED IndicationsThis chapter describes the following Status of each line in the VCN AC Management UsingTerminal for Local Central Management Connecting the PC To connect the PC to the LMA port Terminal Emulator Login Type your Login ID and press EnterType your password and press Enter Line CardThis section describes local management Line Card Main Menu Line Card Menu Hierarchy and Summary Line Card Menu Structure Line Card Main Menu of Port Number Sequence Corresponding to Submenus LC Version Press Enter to return to the Line Card Main Menu Management Menu Ethernet Menu Ethernet Menu Options Feature How to use Ethernet Menu options are described in TableEthernet Traffic Counters Ethernet Menu Options Ethernet Status Typical Ethernet Traffic Counters Screen Reset Ethernet Counters Change Ethernet Work Mode Menu Setting Internal Loopback Mode When you discard the operation, the message appears Setting Normal Mode Hdlc Menu Options Feature How to use Hdlc MenuHdlc Menu options are described in Table Hdlc Traffic counters Hdlc Status Reset Hdlc Counters Change Hdlc Work Mode Normal mode is lack of loopbacks Vdsl Control Menu To check the Vdsl parameters SNR, signal to noise ratio Reset All Counters Reset the Line Card Login message appears LC Configuration Menu Set Vlan ID for Management Set Ethernet Half/Full Duplex Mode Change PasswordRespond by entering your new password. The message appears After any number the user enters, the message appears Through the LMA Set to Factory DefaultsTo download new software perform the following steps Type S the downloading message in appears Procomm Plus window shown in , select Data Send File Figure Procomm Plus Terminal Screen Sending File Using Ascii Screen Procom Plus Data Send File Menu Status Screen File Downloaded Messages Software Execution Messages Line Card Management This section describes central management LMA Access for Central Management Login Process Central Management Menus in the LMA Interface Login Process Central Management Menu Hierarchy and Summary Central Management Menu Structure VCN Access Concentrator Menu Central Management Menus and Corresponding Number Sequence Management Agent Menu To access central managementLine Card Main Menu for Line Card Version Information Slot 1 Line Card Main Menu Monitoring Menu Hardware and Software Version Brief Status of All Ports Monitoring Menu Detailed Port Status Refresh Brief Status or View Port Statistical Detail Traffic Counters for Selected Port Select Traffic Counters and Port Dialog in appears Vdsl Information for Selected Port Vdsl Information for Selected Port Control Menu Reset PortChange Port Selection in Control Menu If you type N, the message appears If you type y, the following message appears This is followed by the messages in and , Login prompt Messages in appearVdsl Restart To abort type n and press Enter Concentrator Configuration Menu Type n and press Enter to abort Change Vlan ID for Management Change Ethernet Half or Full Duplex Mode Type 2 and press Enter the following dialog appears Type your new password and press Enter. The message appears Change the Concentrator PasswordAgent Configuration Menu IP Menu IP Menu Save changes, type y and press Enter Messages appear Discard changes, type n and press Enter nClose Telnet Session If a Telnet session exists, the message appears Default is n Set Factory Defaults Reset Agent To reject, type n and press Enter the message appearsTo proceed, type y and press Enter the message appears Overview Telnet Connection Structure of Remote Menus Telnet Menu Structure Central Management Menus and Corresponding Number Sequence Telnet Login VCN Access Concentrator Hardware and Software Version To configure VCN AC management, type 5 in the VCN Access Menu appears To terminate, type y and press Enter the message appears Exiting the Telnet Management SessionTelnet session is closed Download Procedure Downloading Software to the LCs in the VCN AC VCN Service Switch 10 Front Pane VCN AP Main Menu VCN AP Software Download Menu Enter the AC Vlan ID and press Enter. The message appears LC Downloading State Table LC Downloading Results Downloading Software to VCN APs Enter the AP Vlan ID and press Enter. The message appears AP Downloading State Table Check Software Download for the LC Cards Download Failed for all LCs and all VCN APs Download Failed for One or More Line Cards but not AllCheck the following Software version of the failed LCs Check the physical path between the downloading VCN AP Download Failed for One or More VCN APs but not All Managing the VCN Access Concentrator Line Power State Using Front Panel ProblemsIndicator LEDs LEDs to Solve Ethernet Traffic Counters Hdlc Traffic Count Indicators From Traffic Counts Frame counts Error message Significance User ActionFatal Telnet Connection Problems Telnet Connection Problems Troubleshooting Product Specification Product Specification Terminal Emulation Settings Procomm Plus Terminal screen in appears Procomm Plus Settings Number From Left Function Settings Setup window opens 137 Select System Tab Flow control Parity None139 Terminal Emulation Settings Services Online Technical Access by Analog Modem Username anonymousHours a day, 7 days a week Country Data Rate Telephone Number 847 262 Access by Digital Modem408 727 Europe, South Africa, and Middle East Country Telephone Number Asia, Pacific Rim Country Telephone Number Fax Number Page Glossary Mbps MbaudMiniDIN Glossary Glossary Index Numbers Remote software download Requirements Vlan ID Index 3Com Corporation Limited Warranty Governing LAW EMC Statements