From: Paul Cosgrove (paul.cosgrove@heanet.ie)
Date: Sun Jan 06 2008 - 08:38:57 ARST
If say, R4 has one route learned from R1, then R3 will also learn the same
route. OSPF having a lower AD, R3 will install the OSPF learned route
rather than the RIP route. Only RIP routes installed into the routing
table are redistributed (or connected interfaces running RIP). What do
you see in the routing table for R1 and R3?
If you set the RIP distance lower for the route you wish to redistribute
(or set the OSPF distance higher) on both R1 and R3 then you should see
both OSPF routes on R4.
Paul.
> Hi,
>
> I was doing some exercise on a simple topology to
> understand the mutual redistribtion
> issues.Can anyone please help me on understanding the
> behaviour i am observing.
>
>
> R3
> / \
> / \
> / \
> (net X)---R2 R4
> \ /
> \ /
> \ /
> R1
>
> R2 runs RIPv2.
> R4 runs OSPF.
> R3,R1 run both RIPv2 and OSPF.
>
> On R3 and R1 I redistribute RIPv2 routes to the OSPF
> domain.I was able to understand
> the subobtimal routing issue.But when I look at the
> OSPF database on R4 there was just
> one Type5 entry for net X, either from R1 or from R3.
>
> Is there any reason for this.I thought R4 would
> receive two tyep5 LSAs.
>
> Can anyone please help me.
>
> Regards,
> Nambi
>
>
>
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