Re: route-reflector and OSPF and synchronization?

From: Lionel Florit (lflorit@xxxxxxxxx)
Date: Tue Feb 19 2002 - 20:37:10 GMT-3

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Zhiping,

r1 prefers the ospf route because it has a lower administrative distance
over iBGP.

At 02:33 AM 2/19/2002 -0800, Zhiping Li wrote:
>Hi, everyone
>I have 4 router:r1,r2,r3,r4.
>r1,r2,r3 form AS100, r2 is RR, r1,r3 are RR clients.
>r4 forms AS200.
>r1,r2,r3,r4 run OSPF.
>r3 and r4 are bgp neighbors.
>r4 has a route(loopback) of 4.4.4.0/24.
>r3 redistribute bgp into ospf.
>synchronization enable.
>The question is r2,r3 can see 4.4.4.0 both in route-
>table and bgp table,
>r1 can see 4.4.4.0 in route-table,
>but r1 only sees "*4.4.4.0" in bgp table, not best.
>and it says "not synchronized".
>commands:
>r1#show ip ospf database external
>r1#show ip bgp 4.4.4.0
>tell me they have identical ospf RID and bgp RID.
>
>I wonder if RR and IGP and synchronization is
>conflict.
>Anyone can clear it?
>

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