eigrp variance

From: allboutcisco (frenzeus@streamyx.com)
Date: Sat Apr 22 2006 - 04:39:11 GMT-3


Hi group,

I'm going nuts on this. Appreciate if someone could explain to me what is happening. In regards to eigrp unequal cost loadbalancing, managed to tweak the delay on s0/0.12 in that it is 5 times the metric via s0/0.23 (the ratio between the metrics is 5:1). Configured a variance of 5 on R2. Yet the path is still preferred over s0/0.23 instead of doing a 5:1 on both s0/0.23 & s0/0.12.

R2#sh ip ei to 100 164.1.18.0 255.255.255.0
IP-EIGRP (AS 100): Topology entry for 164.1.18.0/24
  State is Passive, Query origin flag is 1, 1 Successor(s), FD is 3026432
  Routing Descriptor Blocks:
  164.1.23.3 (Serial0/0.23), from 164.1.23.3, Send flag is 0x0
      Composite metric is (3026432/2181120), Route is Internal
      Vector metric:
        Minimum bandwidth is 1280 Kbit
        Total delay is 40100 microseconds
        Reliability is 255/255
        Load is 1/255
        Minimum MTU is 1500
        Hop count is 2
  164.1.12.1 (Serial0/0.12), from 164.1.12.1, Send flag is 0x0
      Composite metric is (15132160/28160), Route is Internal
      Vector metric:
        Minimum bandwidth is 256 Kbit
        Total delay is 200480 microseconds
        Reliability is 255/255
        Load is 1/255
        Minimum MTU is 1500
        Hop count is 1
R2#
Rack1R2#sh ip rou 164.1.18.0
Routing entry for 164.1.18.0/24
  Known via "eigrp 100", distance 90, metric 3026432, type internal
  Redistributing via eigrp 100
  Last update from 164.1.23.3 on Serial0/0.23, 00:20:19 ago
  Routing Descriptor Blocks:
  * 164.1.23.3, from 164.1.23.3, 00:20:19 ago, via Serial0/0.23
      Route metric is 3026432, traffic share count is 1
      Total delay is 40100 microseconds, minimum bandwidth is 1280 Kbit
      Reliability 255/255, minimum MTU 1500 bytes
      Loading 1/255, Hops 2

I apologize if it's a silly question, but it just doesn't make any sense since the metrics are already in a 5:1 ratio. Appreciate any pointers on my mistakes.

Sincere thanks.

-kts



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