Troubleshooting Rip; No Rip Updates Received; Route Oscillation Occurred - H3C S5500-SI Series Operation Manual

[SwitchA-Vlan-interface200] display rip 1 database
1.0.0.0/8, cost 0, ClassfulSumm
1.1.1.0/24, cost 0, nexthop 1.1.1.1, Rip-interface
1.1.2.0/24, cost 0, nexthop 1.1.2.1, Rip-interface
1.1.3.0/24, cost 1, nexthop 1.1.1.2
1.1.4.0/24, cost 2, nexthop 1.1.1.2
1.1.5.0/24, cost 2, nexthop 1.1.1.2
The display shows that there is only one RIP route to network 1.1.5.0/24, with the next hop as Switch B
(1.1.1.2) and a cost of 2.

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 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 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.
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