Re: questions about inter-as mpls vpn option B

From: Rich Collins (nilsi2002@gmail.com)
Date: Sun Feb 15 2009 - 17:04:05 ARST

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Could you also show us the "sh ip bgp vpnv4 all" for ASBR's.

On Sun, Feb 15, 2009 at 4:54 AM, Ovidiu Neghina <o.neghina@gmail.com> wrote:
> Hi,
> I am doing a IE SP lab (lab2) .
> What would be a possible cause for this problem:
> On one ASBR I do not have the mpls forwarding table populated with the
> labels for the vpn prefixes even if I receive those prefixes and
> labels through the bgp vpn4 session from the other ASBR
>
> ASBR is R5 in AS 200, R5 is the router with the problem
> ASBR is R6 in AS 100
> There are bgp vpnv4 sessions between R5 and R6
> On R5 i have the issue described
>
> Rack1R5#sh ip bgp vpn all labels
> Network Next Hop In label/Out label
> Route Distinguisher: 1000:1
> 10.1.7.0/24 24.1.4.4 27/19
> 10.1.8.0/24 24.1.56.6 21/21 - this prefix received from
> AS200 does not go to mpls forwarding table
> 10.1.18.0/24 24.1.56.6 20/22 - this prefix received from
> AS200 does not go to mpls forwarding table
> 10.1.28.0/24 24.1.56.6 19/23 - this prefix received from
> AS200 does not go to mpls forwarding table
> 10.1.47.0/24 24.1.4.4 28/20
> 51.51.51.51/32 24.1.4.4 29/21
> 192.10.1.0 24.1.4.4 30/23
> 223.1.7.7/32 24.1.4.4 31/24
> 223.1.8.8/32 24.1.56.6 26/20
>
> Rack1R5#
>
> Rack1R5#sh mpls forwarding-table
> Local Outgoing Prefix Bytes tag Outgoing Next Hop
> tag tag or VC or Tunnel Id switched interface
> 16 Untagged 24.1.56.6/32 0 Vi1 point2point
> 17 Pop tag 24.1.4.4/32 0 Et0/0 24.1.45.4
> 27 19 1000:1:10.1.7.0/24 \
> 96 Et0/0 24.1.45.4
> 28 20 1000:1:10.1.47.0/24 \
> 0 Et0/0 24.1.45.4
> 29 21 1000:1:51.51.51.51/32 \
> 0 Et0/0 24.1.45.4
> 30 23 1000:1:192.10.1.0/24 \
> 0 Et0/0 24.1.45.4
> 31 24 1000:1:223.1.7.7/32 \
> 0 Et0/0 24.1.45.4
> Rack1R5#
>
> any feedback is appreciated
>
> Ovidiu
>
>
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• Next message: Hussam EL Kebbi: "RE: EIGRP Neighbors Flapping b/c of mismatch MTU ?"
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