![]() The router getting the message is not the one resetting the Indicates that the other neighbor initiates the reset of the neighbor Indicates that a new neighbor has been established. Table 7-1 Neighbor Changes Documented in the EIGRP Log Table 7-1 documents the neighbor changes that you can find in the EIGRP log,Īlong with the meaning and required action to fix the problem based on the log Something like this: %DUAL-5-NBRCHANGE: IP-EIGRP EIGRP AS number: Neighbor neighbor IPĪddress is down: reason for neighbor down. An example of the EIGRP neighbor log looks Release 12.1.3 and later, the eigrp log-neighbor-change command becomes Log-neighbor-change is configured under router EIGRP. In the earlier Cisco IOS Software releases,Ĭonfiguration to enable this feature is required. Whenever EIGRP resets its neighbor relationship, it is noted in the log with Manual change (summary router, metric change, route filter)įigure 7-1 illustrates a general troubleshooting flowchart on EIGRP neighborįigure 7-1 General Flowchart on Troubleshooting EIGRP Neighbor Relationships Consulting the EIGRP Log for Neighbor Changes Uncommon subnet, primary, and secondary address mismatch The following are the most common causes of problems This section discusses methods of troubleshooting issues regarding EIGRP Troubleshooting EIGRP Neighbor Relationships One scenario doesn't fix the network problem, always check into other Sometimes, there might be multiple causes for the same problem. Therefore,ĭebugs are not recommended on a production network unless being instructed byĬisco's Technical Assistance Center (TAC). Debugs can be CPU-intensive and can adversely affect your network.
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