Network Neighbor Adjacencies; Router Ids - Avaya Virtual Services Platform 7000 Series Troubleshooting Manual

Troubleshooting Layer 3

Network neighbor adjacencies

Ensure that OSPF adjacencies exist between network neighbors.
Checking OSPF router adjacencies
Determine if the required adjacencies are formed between the switch and OSPF neighbors.
About this task
Adjacencies must be formed between neighbors for OSPF to function properly.
Procedure
1. Log on to ACLI to enter User EXEC mode.
2. Enter the show ip ospf neighbor command.
3. Observe OSPF neighbor configuration information.
4. Enter the show ip ospf ifstats command.
5. Observe OSPF interface statistics.
Configuring OSPF neighbors
Ensure that OSPF neighbors are configured properly.
Procedure
1. Review vendor documentation for neighbor device configuration information.
2. Configure neighbor device as required.

Router IDs

Ensure there are no duplicate router IDs on routers in the same OSPF domain.
Checking the switch router ID
Determine if the switch router ID is the same as another router within the OSPF domain.
About this task
By default, the router ID is derived from last 4 bytes of the switch MAC address. For a stack
environment, the router ID is derived from last 4 bytes of the base switch unit.
Procedure
1. Log on to ACLI to enter User EXEC mode.
2. Enter the show ip ospf command.
3. Observe the switch router ID.
Troubleshooting Avaya VSP 7000 Series
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July 2015