Route Oscillation - Troubleshooting
R3#show ip route 156.1.0.0
Routing entry for 156.1.0.0/16
Known via "bgp 3", distance 200, metric 0
Routing Descriptor Blocks:
* 1.1.1.1, from 1.1.1.1, 00:00:53 ago
Route metric is 0, traffic share count is 1
AS Hops 2, BGP network version 474
BGP routing table entry for 156.1.0.0/16, version 474
Paths: (2 available, best #1)
Advertised to non peer-group peers:
1.1.1.1 from 1.1.1.1 (1.1.1.1)
Origin IGP, localpref 100, valid, internal, best
142.108.10.2 (inaccessible) from 2.2.2.2 (2.2.2.2)
Origin IGP, metric 0, localpref 100, valid, internal
- Pick a route from the RIB that has changed within the last minute
- Monitor that route to see if it changes every minute