From: Stefan Grey (examplebrain@hotmail.com)
Date: Sun Sep 25 2005 - 11:24:31 GMT-3
Hi, group,
I see such behaviou the first time:
R4
|
|
R1------R2
| __ |
| _|
| |
R3----
Between R1 and R4 is area 3, between router R3 and R1 area 0. Between R1 and
R2 area 0. connection between R3 - R2 area 1. As to physical connections:
between R1 and R4 ethernet, between R3 and R2 ethernet. Between R1,R2 nbma
frame-relay, between R1 -R3 ISDN. Everything is configured correctly. R3
gets two routes about lo0 of R4 from R1 and R2.
on R1 is configured the ip ospf 9999 command to make this route less
preffereable than from R2. But what strange thing wee see:
O IA 1.1.6.6/32 [110/10001] via 1.1.35.5, 00:17:32, BRI0/0
I wonder why the less prefereble route is used?? Ok I turn of the bri0/0
interface
and look which other route I get from router R2.
O IA 1.1.6.6/32 [110/76] via 1.1.23.2, 00:00:29, Ethernet0/1
This route is the same as previous but with much better metric. Why it is
not choosed?? But the worther one is choosed??
Thanks,
The only one advantage of the route through R1 is that R1 - R3 is in AREA0.
But as we know the route is choosed just in two criterias AD/ Metric.
I am totally confused with this.
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