RE: L3VPN works, except default route

I didn't have to use import, and they still came into vrf. ? any idea why?

"maximum-paths ibgp 2" - didn't work

"maximum-paths ibgp unequal-cost 2" - worked

me3600(config)#router bgp 65000

me3600(config-router)#address-family ipv4 vrf one

me3600(config-router-af)#maximum-paths ibgp unequal-cost 2

me3600(config-router-af)#do sh ip ro vrf one 0.0.0.0

Routing Table: one

Routing entry for 0.0.0.0/0, supernet

  Known via "bgp 65000", distance 200, metric 1, candidate default path,
type internal

  Last update from 10.101.0.1 00:00:01 ago

  Routing Descriptor Blocks:

  * 10.101.0.2 (default), from 10.101.0.2, 00:00:01 ago

      Route metric is 1, traffic share count is 1

      AS Hops 0

      MPLS label: 16220

      MPLS Flags: MPLS Required

    10.101.0.1 (default), from 10.101.0.1, 00:00:01 ago

      Route metric is 1, traffic share count is 1

      AS Hops 0

      MPLS label: 16238

      MPLS Flags: MPLS Required

Aaron

From: oluwagbenga_at_gmail.com [mailto:oluwagbenga_at_gmail.com] On Behalf Of
Oluwagbenga Oyebande
Sent: Thursday, April 19, 2012 11:35 AM
To: Aaron
Cc: ccielab_at_groupstudy.com
Subject: Re: L3VPN works, except default route

Try using BGP's maximum-paths command to enable load balancing with the
import keyword to bring them into the vrf.

router bgp 64512

 address-family ipv4 vrf one

  maximum-paths 2 import 2

On 19 April 2012 14:41, Aaron <aaron1_at_gvtc.com> wrote:

As a continuation of this thread/task, I now have the default route from my
dual core ce-pe hubs, thanks to you all :) ...and now shown below is some
output from one of my other pe's further out into the edge of my
network...it seems that it is rcv'ing the dual default routes from the dual
ce/pe core hubs, but now I'm wanting to allow BOTH default routes into the
rib to allow for the typical cef src/dst hashing for load balancing between
both pe next hops 10.101.0.1 and 10.101.0.2. Let me know what you think
please on how to accomplish this.

Aaron

test-me3600#sh bgp vpnv4 u rd 10.101.0.1:1 0.0.0.0
BGP routing table entry for 10.101.0.1:1:0.0.0.0/0, version 9620
Paths: (1 available, best #1, no table)
 Not advertised to any peer
 Local
   10.101.0.1 (metric 4) from 10.101.0.1 (10.101.0.1)
     Origin incomplete, metric 1, localpref 100, valid, internal, best
     Extended Community: RT:100:1 OSPF RT:0.0.0.0:5:1
       OSPF ROUTER ID:1.1.191.17:0
     mpls labels in/out nolabel/16238

test-me3600#sh bgp vpnv4 u rd 10.101.0.2:1 0.0.0.0
BGP routing table entry for 10.101.0.2:1:0.0.0.0/0, version 11522
Paths: (1 available, best #1, no table)
 Not advertised to any peer
 Local
   10.101.0.2 (metric 3) from 10.101.0.2 (10.101.0.2)
     Origin incomplete, metric 1, localpref 100, valid, internal, best
     Extended Community: RT:100:1 OSPF RT:0.0.0.0:5:1
       OSPF ROUTER ID:1.1.191.21:0
     mpls labels in/out nolabel/16220

test-me3600#sh ip ro vrf one 0.0.0.0

Routing Table: one
Routing entry for 0.0.0.0/0, supernet
 Known via "bgp 64512", distance 200, metric 1, candidate default path,
type internal
 Last update from 10.101.0.2 16:33:17 ago
 Routing Descriptor Blocks:
 * 10.101.0.2 (default), from 10.101.0.2, 16:33:17 ago
     Route metric is 1, traffic share count is 1
     AS Hops 0
     MPLS label: 16220
     MPLS Flags: MPLS Required

test-me3600#sh run | sec router bgp
router bgp 64512
 bgp router-id 10.101.12.253
 bgp log-neighbor-changes
 no bgp default ipv4-unicast
 neighbor 10.101.0.1 remote-as 64512
 neighbor 10.101.0.1 update-source Loopback0
 neighbor 10.101.0.2 remote-as 64512
 neighbor 10.101.0.2 update-source Loopback0
 neighbor 10.101.0.4 remote-as 64512
 neighbor 10.101.0.4 update-source Loopback0
 neighbor 10.101.8.2 remote-as 64512
 neighbor 10.101.8.2 update-source Loopback0
 !
 address-family ipv4
 exit-address-family
 !
 address-family vpnv4
 neighbor 10.101.0.1 activate
 neighbor 10.101.0.1 send-community extended
 neighbor 10.101.0.2 activate
 neighbor 10.101.0.2 send-community extended
 neighbor 10.101.0.4 activate
 neighbor 10.101.0.4 send-community extended
 neighbor 10.101.8.2 activate
 neighbor 10.101.8.2 send-community extended
 exit-address-family
 !
 address-family ipv4 vrf one
 redistribute connected
 exit-address-family
test-me3600#

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Received on Thu Apr 19 2012 - 12:46:58 ART