From: Mark Beck (mabeck@xxxxxxxxx)
Date: Thu Jan 18 2001 - 09:04:00 GMT-3
I have had problems with OSP and BGP in this manner, where RIP and BGP work
fine. Aparently the IOS does some extra checks with OSPF like the RID has to b
e
the same on the LSA and where we heard the update from.
Cheers,
Mark
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Lykourgiotis Paraskevas
> Sent: 10 January 2001 16:57
> To: ccielab@groupstudy.com
> Subject: Why BGP doesn't synchronize?
>
>
> Hi,
>
> I have configured BGP on a router, but I haven't turned off synchronization.
> The problem is that BGP doesn't accept the received updates as best routes,
> although the routes appear in the router's IGP routing table. Note that if I
> turn off synchronisation, then no problem...
> Can anybody say why this happen?
> Following is some technical info:
>
> r1#sh ip route 11.0.0.0
> Routing entry for 11.0.0.0/24, 1 known subnets
> Redistributing via ospf 1
>
> O 11.1.1.0 [110/701] via 172.1.1.2, 00:07:01, Serial1/1
> r1#sh ip route
> r1#sh ip route 13.0.0.0
> Routing entry for 13.0.0.0/24, 1 known subnets
> Redistributing via ospf 1
>
> O 13.1.1.1 [110/2] via 172.1.17.1, 00:07:08, FastEthernet0/0
> r1#sh ip bg
> r1#sh ip bgp
> BGP table version is 5, local router ID is 10.1.2.1
> Status codes: s suppressed, d damped, h history, * valid, > best, i -
> internal
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
> Network Next Hop Metric LocPrf Weight Path
> * i11.1.1.0/24 10.1.1.1 0 100 0 i
> * i13.1.1.0/24 10.1.3.1 0 100 0 i
> r1#
>
> router ospf 1
> router-id 10.1.2.1
> network 10.1.2.1 0.0.0.0 area 0
> network 172.1.1.1 0.0.0.0 area 1
> network 172.1.17.10 0.0.0.0 area 0
> !
> router bgp 1
> neighbor 10.1.1.1 remote-as 1
> neighbor 10.1.1.1 update-source Loopback0
> neighbor 10.1.3.1 remote-as 1
> neighbor 10.1.3.1 update-source Loopback0
> neighbor 10.1.3.1 route-reflector-client
> !
> ip classless
>
> TIA
> Paraskevas
>
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