R0106-HP MSR Router Series MPLS Configuration Guide(V7)

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Peer PW ID In/Out Label Proto Flag Link ID State
192.4.4.4 1000 1150/1279 LDP M 1 Up
# Display L2VPN PW information on PE 2. The output shows that a PW has been created.
[PE2] display l2vpn pw
Flags: M - main, B - backup, H - hub link, S - spoke link, N - no split horizon
Total number of PWs: 1, 1 up, 0 blocked, 0 down, 0 defect
Xconnect-group Name: vpn1
Peer PW ID In/Out Label Proto Flag Link ID State
192.4.4.4 1000 200/100 Static M 1 Up
# Verify that CE 1 and CE 2 can ping each other. (Details not shown.)
Configuring an inter-domain multi-segment PW
Network requirements
PE 1 and ASBR 1 belong to AS 100. PE 2 and ASBR 2 belong to AS 200.
Set up an inter-domain multi-segment PW (a method for inter-AS Option B networking) between PE 1 and
PE 2, so CE 1 and CE 2 can communicate over the backbone.
Configure the inter-domain multi-segment PW as follows:
• Configure LDP PWs between PE 1 and ASBR 1, and between PE 2 and ASBR 2, and configure
public tunnels through LDP to carry the PWs.
• Configure an LDP PW between ASBR 1 and ASBR 2. Advertise labeled IPv4 routes between ASBR
1 and ASBR 2 through BGP to set up the public tunnel to carry the LDP PW.
• Concatenate the two public tunnels on ASBR 1.
• Concatenate the two public tunnels on ASBR 2.
Figure 105 Network diagram
Table 41 Interface and IP address assignment
Device Interface IP address
Device Interface IP address
CE 1 GE2/1/1 100.1.1.1/24 ASBR 1 Loop0 192.2.2.2/32
PE 1 Loop0 192.1.1.1/32 GE2/1/2 23.1.1.2/24
GE2/1/2 23.1.1.1/24 GE2/1/1 26.2.2.2/24