Troubleshooting Rip; No Rip Updates Received; Route Oscillation Occurred - H3C S7500E Series Operation Manual

Operation Manual – IPv4 Routing
H3C S7500E Series Ethernet Switches

2.7 Troubleshooting RIP

2.7.1 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

2.7.2 Route Oscillation Occurred

Symptom:
When all links work well, route oscillation occurs on the RIP network. After displaying
the routing table, you may find some routes appear and disappear in the routing table
intermittently.
Analysis:
In the RIP network, make sure all the same timers within the whole network are
identical and relationships between timers are reasonable. For example, the timeout
timer value should be larger 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.
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Chapter 2 RIP Configuration