RE: OT: MPLS VPNV4 routes not making it to EIGRP top

From: Brian McGahan <bmcgahan_at_ine.com>
Date: Wed, 4 Apr 2012 13:37:30 -0500

Correct, you don't need to set the metric because it will automatically be encoded as part of the EIGRP Cost Community. Is your config a variation on this task? http://goo.gl/1VRWe Someone else just posted about having this same problem on this task. I just re-verified yesterday that the solution is working properly, so if your config matches that solutions the problem is not configuration related.

If you're running this in Dynamips it's possible that it's a Dynamips bug. What you can also try doing is a "clear ip route vrf vrf01 *" after the VPNv4 BGP to EIGRP redistribution occurs. Sometimes the process gets hung and you have to kickstart it with that clear command.

What IOS version are you running?

Brian McGahan, CCIE #8593 (R&S/SP/Security)
bmcgahan_at_INE.com
 
Internetwork Expert, Inc.
http://www.INE.com

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of ospf cloud
Sent: Wednesday, April 04, 2012 11:38 AM
To: ccielab_at_groupstudy.com
Subject: Re: OT: MPLS VPNV4 routes not making it to EIGRP top

Actually, the two customer facing PEs are running EIGRP with respective CPEs at customer sites. This worked, but suddenly stopped working. I'm aware that there is no need to specify metrics because the EIGRP costs get encoded within vpnv4 routes.

On Wed, Apr 4, 2012 at 11:28 AM, ospf cloud <ospfcloud_at_gmail.com> wrote:

> Gurus,
>
> I'm trying to redistribute vpnv4 routes into a vrf on my PE, the vpnv4
> routes are showing up in the vrf's BGP table, but not making it to
> EIGRP top. I cleared ip route *, cleared ip bgp *, and reloaded to no
> avail, but the routes are still getting stuck. Any ideas?
>
>
> ########################################################
> R02#show ip eigrp vrf vrf01 top
> EIGRP-IPv4 Topology Table for AS(65534)/ID(10.1.2.2) VRF(vrf01)
> Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
> r - reply Status, s - sia Status
>
> P 10.1.2.0/24, 1 successors, FD is 28160
> via Connected, FastEthernet0/1 P 1.1.1.1/32, 1 successors, FD
> is 156160
> via 10.1.2.1 (156160/128256), FastEthernet0/1
>
> R02#show ip bgp vpnv4 vrf vrf01
> BGP table version is 13, local router ID is 2.2.2.2 Status codes: s
> suppressed, d damped, h history, * valid, > best, i - internal,
> r RIB-failure, S Stale, m multipath, b backup-path, x
> best-external Origin codes: i - IGP, e - EGP, ? - incomplete
>
> Network Next Hop Metric LocPrf Weight Path
> Route Distinguisher: 65000:1 (default for vrf vrf01)
> *> 1.1.1.1/32 10.1.2.1 156160 32768 ?
> *> 10.1.2.0/24 0.0.0.0 0 32768 ?
> *>i10.1.20.0/24 19.19.19.19 5138944 100 0 ?
> *>i10.4.10.0/24 4.4.4.4 0 100 0 ?
> *>i10.10.10.10/32 4.4.4.4 156160 100 0 ?
> *>i10.19.20.0/24 19.19.19.19 0 100 0 ?
> *>i20.20.20.20/32 19.19.19.19 146944 100 0 ?
> R02#show ip bgp vpnv4 vrf vrf01 10.19.20.0/24 BGP routing table entry
> for 65000:1:10.19.20.0/24, version 12
> Paths: (1 available, best #1, table vrf01)
> Not advertised to any peer
> Local
> 19.19.19.19 (metric 50) from 3.3.3.3 (3.3.3.3)
> Origin incomplete, metric 0, localpref 100, valid, internal, best
> Extended Community: RT:65000:1 Cost:pre-bestpath:128:18944
> 0x8800:32768:0 0x8801:65534:2560 0x8802:65280:16384
> 0x8803:65281:4470
> 0x8806:0:169022483
> Originator: 19.19.19.19, Cluster list: 3.3.3.3
> mpls labels in/out nolabel/19016 R02#show run | b router eigrp
> router eigrp 65000 !
> address-family ipv4 vrf vrf01 autonomous-system 65534
> redistribute bgp 65000
> network 10.1.2.2 0.0.0.0
> exit-address-family
> !
> router bgp 65000
> no synchronization
> bgp router-id 2.2.2.2
> bgp log-neighbor-changes
> neighbor 3.3.3.3 remote-as 65000
> neighbor 3.3.3.3 update-source Loopback0 no auto-summary !
> address-family vpnv4
> neighbor 3.3.3.3 activate
> neighbor 3.3.3.3 send-community extended
> neighbor 3.3.3.3 next-hop-self
> exit-address-family
> !
> address-family ipv4 vrf vrf01
> no synchronization
> redistribute eigrp 65534
> neighbor 10.1.2.1 remote-as 65534
> neighbor 10.1.2.1 shutdown
> neighbor 10.1.2.1 activate
> neighbor 10.1.2.1 as-override
> exit-address-family
> !
> !
> !
> no ip http server
>
> R02#show ip bgp vpnv4 vrf vrf01 20.20.20.20/32 BGP routing table entry
> for 65000:1:20.20.20.20/32, version 13
> Paths: (1 available, best #1, table vrf01)
> Not advertised to any peer
> Local
> 19.19.19.19 (metric 50) from 3.3.3.3 (3.3.3.3)
> Origin incomplete, metric 146944, localpref 100, valid,
> internal, best
> Extended Community: RT:65000:1 Cost:pre-bestpath:128:146944
> 0x8800:32768:0 0x8801:65534:130560 0x8802:65281:16384
> 0x8803:65281:1514 0x8806:0:336860180
> Originator: 19.19.19.19, Cluster list: 3.3.3.3
> mpls labels in/out nolabel/19017 R02#

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Received on Wed Apr 04 2012 - 13:37:30 ART

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