Avaya Troubleshooting Routers Anleitung zur Fehlerbehebung PDF herunterladen (Seite 76)

Troubleshooting Routers

4-4

If the cable and the transceiver are OK, use Packet Capture to test the

reception and transmission of data as it passes through the cable. Refer to

Appendix B for instructions.

Troubleshooting the Cable Connection

Check the cable that carries the data as follows:

1. If this problem occurred after connecting a new cable, make sure it is the

proper cable for the application you are using. Refer to the Cable Guide

for Routers and BNX Platforms for guidelines.

2. Make sure that both sides of the cable ﬁrmly connect to the proper

interfaces.

3. Check the LEDs on the rear panel of the router.

The green transceiver light goes on when the cable is secure.

If you hot-swapped a link module or reset the slot, the associated red fail LED

remains on until you run diagnostics on that slot. This condition does not

necessarily indicate a problem. However, if you run diagnostics on a slot and

the red fail LED remains on for more than a few minutes, call the Bay

Networks Technical Response Center.

4. If the state of the connector is down, replace the cable.

Test whether the problem is the cable or the port by replacing it with a cable

that you know is good.

5. Perform local and remote loopback tests during network downtime, or on

ports that are not in use.

Note: Do not use the connector position in one link module to determine the

position of another. Interface 1 of one type of link module may be on the left

side and Interface 1 of another type may be on the right side. Verify the

connection by looking at the connector number on the link module.

Caution: Connect only cables that support hot swap to connectors that

support hot swap. Also, connect only cables that do not support hot swap to

connectors that do not. Otherwise, damage to the board may occur.

Caution: Do not do loopback testing during production network time if the

bridge is operating on the port.

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Avaya Troubleshooting Routers Anleitung zur Fehlerbehebung Seite 76