I completed session 3.6. I don't know why R1 neighbor with R3? only with R2 and SW4 right?
As the result, I keep seeing the neigbhor relationship flapping between R1 and R3.
Do you have any idea how to fix issue? thanks so much
Paul Nguyen
Rack1R1#show ip eigrp neighbors
IP-EIGRP neighbors for process 100
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
2 183.1.123.3 Se0/0/0 133 00:02:31 1 5000 1 0
1 183.1.123.2 Se0/0/0 147 3d15h 73 438 0 71
0 183.1.17.7 Fa0/0 13 3d15h 1 200 0 63
Rack1R1#
*Sep 15 21:14:46.289: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 183.1.123.3 (Serial0/0/0) is down: retry limit exceeded
Rack1R1#
*Sep 15 21:15:18.417: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 183.1.123.3 (Serial0/0/0) is up: new adjacency