Sanju,
can you please post your BGP+EIGRP config? Looks like the distance
command didn't take effect, otherwise eBGP wouldn't be preferred after
the EIGRP neighbor flap. The distance command doesn't support a
prefix-list, please use a standard ACL instead.
oli
sanju shastri <mailto:[EMAIL PROTECTED]> wrote on Tuesday, May 15,
2007 1:08 AM:
> HI Oli,
>
> Thx for replying , that really a good option . i was not awrae of the
> same.
>
> i would like to share my solution with you..
>
> What i have done i have created a route map in which i have permitted
> the subnets for which i need to change the AD while using a prefix
> list.
>
> then i redistributed eigrp into bgp using that route map.
> now what it does i have two route in bgp one from EBGP peer and
> second from the local BGP (this originally came from the eigrp , the
> redistributed one )
>
> now the bgp path selection comes into picture and selects the the
> local bgp route coz of higher weight.
>
> BGP give ip routing table a local bgp route with AD 200.
> Now routing table selects the route from eigrp coz of lesser AD i.e
> 90 or 170 couls be internal or external.
>
> I have achieved the traffic flow from the route learned from the
> eigrp route.
>
> But here comes the problem abt convergence , if the EIGRP neighbour
> goes down then EBGP route comes into effect and traffic goes from it
> bur when it comes back again the routing table does not select the
> eigrp route .
>
> Any suggestions what could be cause of problem.
>
> Regards,
> Sanju
>
>
>
> On 5/13/07, Oliver Boehmer (oboehmer) < [EMAIL PROTECTED]
> <mailto:[EMAIL PROTECTED]> > wrote:
>
> sanju shastri <> wrote on Sunday, May 13, 2007 10:09 AM:
>
> > HI all,
> >
> > I have a scenario in which a SP is giving L3 MPLS VPN to
client
> having > multiple locations.
> >
> > Now thw client is running EIGRP in his network and EBGP with
SP.
> >
> >
> > ON HUB location routes learned by router for remote branches
via
> > EIGRP is having an AD of 90 and learnned from EBGP are having
a AD
> of > 20. Becasuse of same the EBGP routes are given preference
in
> any case. >
> > The client wants to give preference to routeds leaned by local
> EIGRP > and want to make MPLS VPN link as a failover/secondary.
> >
> > well I can change AD for the EBGP session but it will
reflected to
> > all the subnet where i want it for some specific subnet.
>
> you can selectively adjust the distance for specific subnets
using
> the
>
> distance <distance> 0.0.0.0 255.255.255.255 <acl>
>
> command (within router bgp), where you define the networks you
want
> to change the distance of in the access-list referenced there.
>
> Not knowing details about the topology, but you might also be
> successful when you increase eBGP admin distance from 20 to 100
or
> so, which is higher than EIGRP internal distance (90), but lower
> than EIGRP's external one (170). This way, only internal EIGRP
> prefixes (i.e. originated within the same site) are preferred,
while
> external ones (possibly received from remote sites via the
L3VPN)
> are preferred through the local eBGP connection (with a backup
to
> the redundant hub router redistributing those into EIGRP).
>
> oli
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