From: Sergio Jimenez Arguedas (sejimenez@its.co.cr)
Date: Fri Sep 03 2004 - 16:04:59 GMT-3
Hi Peng,
Remember that the cost of the route depends on the value of the bandwith of
the outgoing interface, so it depends on the direction you are calculating
the total cost of the route.
Example:
NetA---Cost 10---R1-BW128K-----BW512K---R2--BW64K--------BW128K--R3---Cost
1---NetB
In R3 the cost to the NetA is based on:128K,512K and cost 10
In R1 the cost to the Netb is based on:128K,64K and cost 1
Rgds,
SJA
-----Mensaje original-----
De: nobody@groupstudy.com [mailto:nobody@groupstudy.com]En nombre de
Peng Zheng
Enviado el: viernes, 03 de septiembre de 2004 12:50
Para: ccielab@groupstudy.com
Asunto: unequal OSPF cost in same subnet
R1(fa0/0)----3550-----(e0)R2
In this scenario, OSPF cost on fa0/0 is 1, but for E0
on R2 is 10.
I think OSPF cost should equal on a subnet to make
sure it works correctly.
Should I always change the ip ospf cost (or bandwidth)
or is there a easier way to do it?
And I notice some the default bandwidth for some
serial port is not T1, but 128k, then the same problem
exist for serial connections.
Any ideas?
Thanks.
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