R3166-R3206-HP High-End Firewalls Network Management Configuration Guide-6PW101

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Troubleshooting RIP
No RIP updates received
Symptom:
No RIP updates are received when the links work well.
Analysis:
After enabling RIP, you must use the network command to enable corresponding interfaces. Make sure
no interfaces are disabled from handling RIP messages.
If the peer is configured to send multicast messages, the same should be configured on the local end.
Solution:
• Use the display current-configuration command to check RIP configuration
• Use the display rip command to check whether some interface is disabled
Route oscillation occurred
Symptom:
When all links work properly, route oscillation occurs on the RIP network. After displaying the routing
table, you might find some routes intermittently appear and disappear in the routing table.
Analysis:
In the RIP network, make sure that all the same timers within the entire network are identical and have
logical relationships between them. For example, the timeout timer value should be greater than the
update timer value.
Solution:
• Use the display rip command to check the configuration of RIP timers
• Use the timers command to adjust timers properly.
Configuration guidelines
1. RIP multi-process is not supported on the web interface. Enabling RIP creates process 1, and
disabling RIP removes process 1.
2. After you enable RIP, it is enabled on all the interfaces automatically. Enabling RIP on a specific
interface is not supported on the web interface; instead, you can set the Work State of a RIP
interface to enable/disable the receiving/sending of RIP packets.
3. If the interface version is set to RIPv2, the automatic route summarization function is disabled.