Re: EIGRP<->BGP Redistro Question.

How long have you waited for it to "fail back" on its own with clearing anything?

During the fail back process, try soft clear in and see if they are coming from the provider mpls bgp session...

Joe

----- Original Message -----
From: JB Poplawski [mailto:jb.poplawski_at_gmail.com]
Sent: Tuesday, May 17, 2011 06:35 PM
To: marc edwards <renorider_at_gmail.com>; Joseph L. Brunner
Cc: ccielab_at_groupstudy.com <ccielab_at_groupstudy.com>
Subject: Re: EIGRP<->BGP Redistro Question.

Good Call, the Site B router is configured as:

router eigrp 100
 redistribute bgp 65000 metric 1500 10 255 1 1500 route-map settag
 network 4.7.7.4 0.0.0.0
 distance eigrp 10 20
 no auto-summary
!
router bgp 65000
 no synchronization
 bgp log-neighbor-changes
 redistribute eigrp 100 route-map blocktag3
 neighbor 1.4.4.1 remote-as 4323
 neighbor 1.4.4.1 fall-over
 neighbor 1.4.4.1 fall-over bfd
 neighbor 1.4.4.1 allowas-in
 no auto-summary
!
route-map settag permit 10
 set tag 4
!
route-map settag permit 20
!
route-map blocktag3 deny 10
 match tag 3
!
route-map blocktag3 permit 20

The problem I run into is that my BGP router learns of the external
routes via EIGRP at first, those external routes disappear with the
link dying, and they come back but the router "hangs on to" the bgp
route. I have to either clear the process or clear the specific route
to get it to fail back properly.

Anything else you can think of?
JB

On Tue, May 17, 2011 at 5:19 PM, marc edwards <renorider_at_gmail.com> wrote:
> Your eigrp statement at both sites is specifying only 3.6.6.3 as
> interface 0.0.0.0 is exact match. Are both sites interfaces set with
> 3.6.6.3? Let us know.
>
> Thanks,
>
> Marc Edwards - DCNISS
> http://reno-ccie.blogspot.com
>
> On Tue, May 17, 2011 at 2:25 PM, JB Poplawski <jb.poplawski_at_gmail.com> wrote:
>> Good afternoon,
>>
>> I'm attempting to implement a solution and am labbing it up on GNS3.
>> Hopefully someone has some insight, I've chased my tail for awhile
>> here.
>>
>> I have two sites connected via BGP to an MPLS cloud. Each site has
>> static routes that the other site needs access to. Everything works
>> great now. I'm getting a point to point between the two and I'm going
>> to run into a problem. My static routes are EIGRP External and my BGP
>> routes getting redistro-ed into EIGRP as external as well. On initial
>> bootup everything works well. Each site goes through their respective
>> BGP -> MPLS cloud for remote access to the other sites. For the local
>> networks it goes across the point to point link. If I kill that point
>> to point, everything fails over to local BGP router. Site A goes
>> through MPLS to Site B. If I bring that point to point back. All of
>> the internal routes get re-learned via EIGRP and work like a champ.
>> All of the external static routes will continue to go through the
>> local BGP router and not over the Point to Point.
>>
>> My configs are here:
>> ____________________________________________________________
>> Site A
>> router eigrp 100
>> redistribute bgp 65000 metric 1500 10 255 1 1500 route-map settag
>> network 3.6.6.3 0.0.0.0
>> distance eigrp 10 20
>> no auto-summary
>> !
>> router bgp 65000
>> no synchronization
>> bgp log-neighbor-changes
>> redistribute eigrp 100 route-map blocktag4
>> neighbor 1.3.3.1 remote-as 4323
>> neighbor 1.3.3.1 fall-over
>> neighbor 1.3.3.1 fall-over bfd
>> neighbor 1.3.3.1 allowas-in
>> no auto-summary
>> !
>> route-map settag permit 10
>> set tag 3
>> !
>> route-map settag permit 20
>> !
>> route-map blocktag4 deny 10
>> match tag 4
>> !
>> route-map blocktag4 permit 20
>> ____________________________________________________________
>> Site B
>> router eigrp 100
>> redistribute bgp 65000 metric 1500 10 255 1 1500 route-map settag
>> network 3.6.6.3 0.0.0.0
>> distance eigrp 10 20
>> no auto-summary
>> !
>> router bgp 65000
>> no synchronization
>> bgp log-neighbor-changes
>> redistribute eigrp 100 route-map blocktag4
>> neighbor 1.3.3.1 remote-as 4323
>> neighbor 1.3.3.1 fall-over
>> neighbor 1.3.3.1 fall-over bfd
>> neighbor 1.3.3.1 allowas-in
>> no auto-summary
>> !
>> route-map settag permit 10
>> set tag 3
>> !
>> route-map settag permit 20
>> !
>> route-map blocktag4 deny 10
>> match tag 4
>> !
>> route-map blocktag4 permit 20
>>
>>
>> I'm thinking I need to tag the routes when I intro them to EIGRP, but
>> not really sure what that gets me. Any advice or direction would be
>> great. I was thinking about EEM or something, but wasn't sure where
>> to even begin with that. It seems easy enough, One EIGRP with two BGP
>> exit points, but I keep chasing my tail.
>>
>> Any help/pointers are appreciated,
>> JB
>>
>>
>> Blogs and organic groups at http://www.ccie.net
>>
>> _______________________________________________________________________
>> Subscription information may be found at:
>> http://www.groupstudy.com/list/CCIELab.html

Blogs and organic groups at http://www.ccie.net
Received on Tue May 17 2011 - 22:38:49 ART