Eigrp Issue

Unanswered Question
Apr 10th, 2007

I have two routers A & B (running HSRP) connecting to the peers X and Y. A is the HSRP Active router and B is the standby device.

Connectivity :




A has 2 E1s grouped onto a Mulitlink bundle, and B has only one E1 link towards Y.

BW on A Multilink - 4MB

Latency - 100000ms

BW on B E1 link - 2MB

Latency - 20000ms

Now, i can see that the traffic is taking the preferred route of B-->Y. Is it because of the latency being higher on A? Iam running Eigrp.

Please advise.



I have this problem too.
0 votes
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
sundar.palaniappan Tue, 04/10/2007 - 09:38


Your thinking is correct. EIGRP uses the minimum delay + sum of total delay to calculate the composite metric for a route. In your case the total delay for a route(s) might be lower via the one E1. Lower the delay on the multilink interface to less than 20000ms.

Check the EIGRP topology table, syntax is 'show ip eigrp top ', to view the min bw/total delay/composite metric of the router. Based on this output you can tweak the delay or bandwidth of the interface.




This Discussion