notes: Troubleshooting EIGRP Route Flapping

This section discusses how to troubleshoot consistent EIGRP route flapping. The most important tool for troubleshooting this problem is the show ip eigrp event command. This command reveals which neighbor is updating and the metric with which it's updating

debugging and verification

show ip route

Router B#debug ip routing 1
access-list 1 permit 192.168.1.0 0.0.0.255
access-list 1 deny any
show ip eigrp event


Solution:


Investigate the cause of route flapping it can be layer 1 to 2 issue. or loop issues.