Creating a VSI and Configuring LDP Signaling

Procedure

1. Run system-view

   The system view is displayed.

2. Run mpls l2vpn

   MPLS L2VPN is enabled and the MPLS L2VPN view is displayed.

3. Run quit

   Return to the system view.

4. Run vsi vsi-name static

   A VSI is created and the VSI view is displayed.

5. Run pwsignal ldp

   The PW signaling protocol is specified as LDP and the VSI-LDP view is displayed.

   By default, no signaling mode is configured for a VSI.

6. Run vsi-id vsi-id

   The VSI ID is configured.

   By default, no VSI ID is set.

   The two ends of the VSI must agree on the same vsi-id.

   The VSI exists only on the PE. One PE can have multiple VSIs. One VPLS on a PE has only one VSI.

7. Run peer peer-address [ negotiation-vc-id vc-id ]

   The VSI peer is configured.

   By default, no peer is configured for a VSI.

8. Run peer peer-address [ negotiation-vc-id vc-id ] pw pw-name

   A PW is created and the VSI-LDP-PW view is displayed.

   By default, no PW is created.

   If you have created a PW, you can run the command pw pw-name to enter the VSI-LDP-PW view in the VSI-LDP view.

9. (Optional) Run undo interface-parameter-type vccv

   The device is configured to delete the VCCV byte following the interface parameter in Mapping packets.

   By default, a mapping packet carries the VCCV byte.

10. Run quit

    Return to the VSI-LDP view.

11. (Optional) Configure common VSI parameters.

    Common VSI parameters include the VSI encapsulation mode, MTU for negotiation, and VSI description.

    1. Run quit

       Return to the VSI view.

    2. Run encapsulation { ethernet | vlan }

       The VSI encapsulation type is configured.

       By default, the encapsulation type of the interface is VLAN.

    3. Run mtu mtu-value

       The maximum transmission unit (MTU) for packets sent by the VSI is configured.

       The default value of MTU in the VSI view is 1500.

       When configuring MTUs, note that MTUs of VSIs created for the same VPLS on different PEs must be the same.

       • When an interface is bound to a VSI, the MTU can be configured in the interface view but does not take effect. The PW signaling uses the MTU that is configured in the VSI for PW MTU negotiation.
       • On the router, the MTU value is used only for signaling negotiation and does not limit the size of forwarded packets.

    4. Run description description

       The VSI description is configured.

       By default, the description of a VSI is empty.