From: Ovidiu Neghina (o.neghina@gmail.com)
Date: Sun Feb 15 2009 - 07:54:33 ARST
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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