Troubleshooting RIP is relatively simple. Most difficulties with classful protocols such as RIP involve either misconfigured subnet masks or discontiguous subnets. If a route table contains inaccurate or missing routes, check all subnets for contiguity and all subnet masks for consistency.

A final command can be useful when a high-speed router is sending multiple RIP messages to a low-speed router. In such a case, the low-speed router might not be able to process updates as quickly as they are received, and routing information might be lost. output-delay delay can be used under the RIP command to set an interpacket gap of between 8 and 50 milliseconds. (The default is 0 milliseconds.)