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HP 2103R-CSDI Troubleshooting, Startup Problems, This section describes:, ■Troubleshooting 3Com Carrier Problems, ■Troubleshooting Router-SpecificProblems

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5-2 CHAPTER 5: TROUBLESHOOTING

Troubleshooting This section describes how to troubleshoot startup problems by monitoring Startup Problems the LEDs on the Edge Router module.

This section describes:

■Troubleshooting Router-Specific Problems

■Troubleshooting Mailbox Interface Problems

■Troubleshooting 3Com Carrier Problems

Troubleshooting When you first install the Edge Router module in an ONline or ONcore hub Router-Specific the Cisco engine runs a full set of hardware diagnostic tests. If the engine

Problems fails diagnostics, the Router (RTR) LED does not illuminate or will flash. This indicates a problem with the router hardware or software. Refer to the appropriate Cisco Systems troubleshooting documentation for corrective action.

Troubleshooting ONline and ONcore Edge Routers use a hardware mailbox interface that Mailbox Interface allows the Cisco engine to communicate with the 3Com carrier board

Problems during powerup. If the 3Com mailbox does not establish communication with the engine, the following message is reported to the engine console port:

%MAILBOX-3-INITFAIL:Mailbox initialization failure.

Not getting interrupts. Mailbox offline.

If you see this message, contact your 3Com representative for assistance.

Troubleshooting Before mailbox communication is initialized and established between the 3Com Carrier Cisco engine and the 3Com carrier, the Module Status (S) LED on the front

Problems panel of the Edge Router module blinks slowly. If communication is established successfully, the Status LED illuminates and stays on solid. If the Status LED does not light, the 3Com carrier board has malfunctioned. Contact your 3Com representative for assistance. Refer to Appendix B for instructions on contacting Technical Support for you product.

Contents

EDGE ROUTER MODULE INSTALLATION GUIDE FOR ETHERNET Page Page Page CONTENTS 3CONFIGURING THE EDGE ROUTER MODULE 4MONITORING EDGE ROUTER MODULE OPERATION 5 TROUBLESHOOTING ASPECIFICATIONS BTECHNICAL SUPPORT INDEX LIMITED WARRANTY ABOUT THIS GUIDE Introduction Audience How to Use This Guide Conventions Page Related Documents Reference The following documents supply related background information: Documents Case, J., Fedor, M., Scoffstall, M., and J. Davin, The Simple Network Management Protocol, RFC 1157, University of Tennessee at Knoxville Performance Systems International and the MIT Laboratory for Computer Page 1 INTRODUCTION Page Page Figure 1-2 shows the architecture of each Edge Router module type Edge Router Module Features Page Topology Switching Using topology switching you can: You perform topology switching using: ■Network management module commands ■Simple Network Management Protocol (SNMP) Page You can also purchase an upgrade kit to upgrade your IP/IPX, Desktop, or Desktop plus IBM software to a version with an enhanced feature set Page INSTALLING THE EDGE ROUTER 2 MODULE Installation Flowchart Precautionary Procedures Quick Installation Hubs Page Unpacking Verifying Jumper Plug Positions Configuring DIP Switches Figure 2-2 shows the ONline carrier DIP switch location Use Table 2-4 to select a network by using the DIP switches Isolating the ONline Edge Router Module Configuring the ONcore Carrier DIP ■Enabling or Disabling NVRAM Configuration ■Selecting a Network Figure 2-3 shows the ONcore carrier DIP switch location Switch 4 provides the NVRAM selection for engine bay 1 (top) Switch 9 provides the NVRAM selection for engine bay 2 (bottom) If the NV SEL DIP switch is: ■ OFF (disabled) – The Edge Router module uses DIP switch settings 1 To select a network: Set the switches according to Table Switch combinations not listed in Table 2-5 select Isolate_1 Installing the ONline Edge Router Module ONcore Edge Page Page Page ROUTER MODULE Managed Configuration Overview Attaching a Management Terminal Configuring the Carrier in a Managed ONline Hub Managed ONcore Carrier NVRAM Settings Carrier DIP Switch Settings Carrier Default Settings ■Issue the SAVE command Reset or Configuration Source You can assign a carrier backplane port to: ■One of eight Ethernet backplane networks ■One of four Isolated backplane networks Engine Page Console and auxiliary port specifications are provided in Table 3-2 and Table 3-3, respectively Mini-DINconnector pinouts are provided in Appendix A Ignore this message and continue with the appropriate configuration Edge Router Engine Page MODULE OPERATION Monitoring Edge Operation Page Showing Module and Status Using the SHOW MODULE Command module The syntax for the SHOW MODULE command is: Page PORT Command ports The syntax for the SHOW PORT command is: Edge Router module installed in slot 1 of an ONcore hub: The following command displays verbose information for port 1 on an Page Page 5 TROUBLESHOOTING Troubleshooting Startup Problems Network Connectivity Problems WAN Correcting Operating Malfunctions Page A SPECIFICATIONS General Specifications Electrical Environmental Mechanical Hub Capacities Cable Pinouts Page Figure A-1 identifies the pins that the 8-pin mini-DINport uses Pinouts module Table A-12 lists auxiliary port pinouts for the 3Com OpenHub Management Cable (mini-DINto DB-25modem adapter cable) Page EIA-530DTE Synchronous Serial Cable Pinouts RS-232DTE and DCE Serial Cable Pinouts Table A-14 lists pinouts for: ■RS-232DTE synchronous serial cable (Part Number ERM232-CAB) ■RS-232DCE synchronous serial cable (Part Number ERF232-CAB) RS-449DTE and DCE Serial Cable Pinouts Table A-15 lists pinouts for: ■RS-449DTE synchronous serial cable (Part Number ERM449-CAB) ■RS-449DCE synchronous serial cable (Part Number ERF449-CAB) Table A-16 lists pinouts for: ■V.35 DTE synchronous serial cable (Part Number ERMV35-CAB) ■V.35 DCE synchronous serial cable (Part Number ERFV35-CAB) Table A-17 lists pinouts for: ■X.21 DTE synchronous serial cable (Part Number ERMX21-CAB) ■X-21DCE synchronous serial cable (Part Number ERFX21-CAB) Online Technical Services Access by Analog Modem Access by Digital Modem (408) by entering our URL into your Internet browser: To use 3ComForum: 1Log in to CompuServe Enter 3Press Return to view the 3ComForum main menu Support From Your Network Supplier 3Com Corporation Accessing the 3Com ISD MIB Contacting 3Com ISD Technical Publications INDEX