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
■Troubleshooting Mailbox Interface Problems
■Troubleshooting 3Com Carrier Problems
Troubleshooting When you first install the Edge Router module in an ONline or ONcore hub
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:
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.