How do you monitor and analyze RIP routing table updates and metrics using debug and show commands?

1 Debug ip rip

The debug ip rip command enables you to see the RIP packets that are sent and received by the router. You can use this command to troubleshoot RIP routing issues, such as missing or incorrect routes, network flapping, or authentication errors. The debug ip rip command displays the source and destination IP addresses, the RIP version, the command type (request or response), the number of routes, and the network and metric information for each route.

2 Show ip route rip

The show ip route rip command displays the RIP routes that are in the routing table of the router. You can use this command to verify that the router has learned the correct routes from its RIP neighbors, and that the metrics are consistent with the hop count. The show ip route rip command displays the network prefix, the administrative distance, the metric, the next-hop IP address, and the interface for each route.

3 Show ip rip database

The show ip rip database command displays the RIP database that contains all the routes that the router has learned from its RIP neighbors, regardless of whether they are in the routing table or not. You can use this command to check the validity and expiry timers of each route, and to compare the routes in the database with the routes in the routing table. The show ip rip database command displays the network prefix, the metric, the next-hop IP address, the interface, and the timers for each route.

4 Show ip protocols

The show ip protocols command displays the global and interface-specific information about the routing protocols that are running on the router. You can use this command to check the configuration and status of RIP, such as the RIP version, the network statements, the passive interfaces, the default metric, the timers, the authentication, and the neighbors. The show ip protocols command displays the protocol name, the process ID, the networks, the redistribution, the distance, the interfaces, and the neighbors for each routing protocol.

5 Show ip interface brief

The show ip interface brief command displays a summary of the IP information for each interface on the router. You can use this command to check the IP address, the status, and the protocol of each interface, and to identify any interface issues that may affect RIP routing. The show ip interface brief command displays the interface name, the IP address, the status (up or down), and the protocol (up or down) for each interface.

6 Show ip rip statistics

The show ip rip statistics command displays the statistics of the RIP packets that are sent and received by the router. You can use this command to monitor the RIP traffic and performance, and to detect any errors or anomalies in the RIP communication. The show ip rip statistics command displays the total number of packets, the number of requests, responses, and triggered updates, the number of bad packets and bad routes, and the number of updates queued and dropped for each interface.

7 Here’s what else to consider

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