H3C Technologies H3C S6800 Series Switches - Manual (Page 339)

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Figure 86 Inter-domain multi-segment PW
VCCV
Virtual Circuit Connectivity Verification (VCCV) is an OAM feature for L2VPN. It verifies the connectivity
of PWs on the data plane. VCCV includes two modes:
• Manual mode—Use the ping mpls pw command to manually test the connectivity of a PW.
• Auto mode—Configure BFD to automatically test the connectivity of a PW.
For more information about VCCV, see " Configuring MPLS OAM ."
MPLS L2VPN configuration task list
To establish an MPLS L2VPN, you must perform the following tasks:
• Configure an IGP to achieve IP connectivity within the backbone.
• Configure basic MPLS, LDP, or MPLS TE 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:
• MPLS L2VPN connection—To create an MPLS L2VPN connection, configure an AC, configure a PW
in cross-connect view or auto-discovery cross-connect view, and bind the AC with the PW in
cross-connect view or auto-discovery 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 Remarks
(Required.) Enabling L2VPN N/A
(Required.) Configuring an AC
For multi-segment PWs, skip this
task.
(Required.) Configuring a cross-connect N/A
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