Please Help :How to adjust "traffic share count" in EIGRP? it

From: sirus MOGHADASIAN (cyrus.mgh@gmail.com)
Date: Sun Dec 23 2007 - 16:34:50 ART


Hi GS,

It seems traffic share count shows unpredictable manner.

Rack1R4#sh ip ro 222.22.2.0
Routing entry for 222.22.2.0/24
  Known via "eigrp 1024", distance 170, metric 2818560, type external
  Redistributing via eigrp 1024
  Last update from 174.1.145.1 on Serial1/0, 00:00:45 ago
  Routing Descriptor Blocks:
    174.1.145.1, from 174.1.145.1, 00:00:45 ago, via Serial1/0
      Route metric is 7164672, *traffic share count is 47*
      Total delay is 215110 microseconds, minimum bandwidth is 1544 Kbit
      Reliability 255/255, minimum MTU 1500 bytes
      Loading 1/255, Hops 2
  * 174.1.45.5, from 174.1.45.5, 00:00:45 ago, via Ethernet0/1
      Route metric is 2818560, *traffic share count is 120*
      Total delay is 100100 microseconds, minimum bandwidth is 10000 Kbit
      Reliability 255/255, minimum MTU 1500 bytes
      Loading 1/255, Hops 1

Rack1R4(config)#do sh ip cef 222.22.2.0 inter
222.22.2.0/24, version 484, epoch 0, per-destination sharing
0 packets, 0 bytes
  via 174.1.145.1, Serial1/0, 0 dependencies
    traffic share 47
    next hop 174.1.145.1, Serial1/0
    valid adjacency
  via 174.1.45.5, Ethernet0/1, 0 dependencies
    traffic share 120
    next hop 174.1.45.5, Ethernet0/1
    valid adjacency
------------------------------------------------------------------------------------
Let's consider another situation (just watch metric
changes)------------------------------------------------------------------------
Rack1R4#sh ip ei to 222.22.2.0 255.255.255.0
IP-EIGRP (AS 1024): Topology entry for 222.22.2.0/24
  State is Passive, Query origin flag is 1, 1 Successor(s), FD is 1660928
  Routing Descriptor Blocks:
  174.1.45.5 (Ethernet0/1), from 174.1.45.5, Send flag is 0x0
      Composite metric is (1794560/258560), Route is External
      Vector metric:
        Minimum bandwidth is 10000 Kbit
        Total delay is 60100 microseconds
        Reliability is 255/255
        Load is 1/255
        Minimum MTU is 1500
        Hop count is 1

  174.1.145.1 (Serial1/0), from 174.1.145.1, Send flag is 0x0
      Composite metric is (7164672/1660672), Route is External
      Vector metric:
        Minimum bandwidth is 1544 Kbit
        Total delay is 215110 microseconds
        Reliability is 255/255
        Load is 1/255
        Minimum MTU is 1500
        Hop count is 2

Rack1R4#sh ip cef 222.22.2.0 int
222.22.2.0/24, version 431, epoch 0, per-destination sharing
0 packets, 0 bytes
  via 174.1.145.1, Serial1/0, 0 dependencies
   * traffic share 1*
    next hop 174.1.145.1, Serial1/0
    valid adjacency
  via 174.1.45.5, Ethernet0/1, 0 dependencies
    *traffic share 4*
    next hop 174.1.45.5, Ethernet0/1
    valid adjacency

it seems traffic share count is not changes in metrics ratio, in first case
is 120/47 and in second case is 4/1 .

How can I adjust traffic share count value precisely?

Thanks
Cyrus



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