EIGRP Variance help?

From: Dennis Worth (Dennis.Worth@oomc.com)
Date: Thu Apr 19 2007 - 18:15:44 ART


All,

    I am trying to understand the variance command from a real world
problem.

     R1 R2
     \ \ / /
      \ \/ /
       \ /\ /
     CAT1----CAT2

6Mb outbound on Wan R1
6Mb outbound on Wan R2

I need to take one Wan router and remove a 2Mb circuit leaving me 4Mb

Looking from the Cats, currently gives me a metric of:

TEST-R1#sh ip ro 10.0.0.0
Routing entry for 10.20.0.0/16
  Known via "eigrp 1", distance 90, metric 13242368, type internal
  Redistributing via eigrp 1
  Last update from 10.16.4.230 on GigabitEthernet2/3, 3d09h ago
  Routing Descriptor Blocks:
  * 10.16.4.226, from 10.16.4.226, 3d09h ago, via GigabitEthernet2/2
      Route metric is 13242368, traffic share count is 1
      Total delay is 501010 microseconds, minimum bandwidth is 6146 Kbit
      Reliability 255/255, minimum MTU 1427 bytes
      Loading 30/255, Hops 2
    10.16.4.230, from 10.16.4.230, 3d09h ago, via GigabitEthernet2/3
      Route metric is 13242368, traffic share count is 1
      Total delay is 501010 microseconds, minimum bandwidth is 6146 Kbit
      Reliability 255/255, minimum MTU 1427 bytes
      Loading 30/255, Hops 2

http://www.cisco.com/warp/public/103/19.pdf

Dennis Worth
Network Engineer
Option One Mortgage
Phone 949-790-3687
dennis.worth@oomc.com



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