Inter-domain multi-segment PW
An inter-domain multi-segment PW includes concatenated PWs in different ASs. It is a method for
inter-AS option B networking.
As shown in
different ASs by concatenating PW 1 and PW 2 on ASBR 1 and concatenating PW 2 and PW 3 on
ASBR 2.
Figure 64 Inter-domain multi-segment PW
MPLS L2VPN configuration task list
To establish an MPLS L2VPN, you must complete the following tasks:
•
Configure an IGP to achieve IP connectivity within the backbone.
Configure basic MPLS or LDP to set up public tunnels across the backbone.
•
Configure MPLS L2VPN on the PEs, including setting up PWs, and binding ACs to PWs.
•
This chapter only describes MPLS L2VPN configurations on the PEs.
MPLS L2VPN configurations vary with the following scenarios:
Remote connection—To create a remote connection, configure an AC, configure a PW in
•
cross-connect view, and bind the AC with the PW in cross-connect view.
Multi-segment PW—To create a multi-segment PW, configure two PWs and bind the two PWs in
•
cross-connect view.
To configure MPLS L2VPN on a PE:
Tasks at a glance
(Required.)
(Required.)
•
Configuring a Layer 2 Ethernet interface
•
Configuring a service instance on a Layer 2 Ethernet interface
Figure
64, you can create an inter-domain multi-segment PW between PE 1 and PE 2 in
Enabling L2VPN
Configuring an
AC:
229
Remarks
N/A
Choose either task depending
on the AC type.
For multi-segment PWs, skip this
task.