10G Core Routing Switch User Manual
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Typical OSPF Configuration Example
I. Networking requirements
In the following figure, Area 2 and Area 0 are not directly connected. Area 1 is required to be taken as transit area for
connecting Area 2 and Area 0.Enable OSPF service on switch and Correctly configure a virtual link between Switch B
and Switch C in Area 1.
II. Networking diagram
Figure
OSPF virtual link configuration networking
III. Configuration procedure
OSPF Fault Diagnosis and Troubleshooting
Fault 1: OSPF has been configured in accordance with the above-mentioned steps, but OSPF on the router cannot run
normally.
Troubleshooting: Please check according to the following procedure.
Troubleshooting locally:
Check whether the protocol between two directly connected routers is in normal operation. The normal sign is the
peer state machine between the two routers reaches the FULL state. (Note: On a broadcast or NBMA network, if the
interfaces for two routers are in DROther state, the peer state machine for the two routers are in 2-way state, instead
of FULL state. The peer state machine between DR/BDR and all the other routers is in FULL state.
Execute the
show ip ospf neighbour
command to view neighbours.
Execute the
show ip ospf interface
command to view OSPF information in the interface.
Check whether the physical connections and the lower level protocol operate normally. You can execute the ping
command to test. If the local router cannot ping the peer router, it indicates that faults have occurred to the
physical link and the lower level protocol.