Creating a Management VPLS for Spoke-SDP Protection

This section provides a brief overview of the tasks that must be performed to configure a management VPLS for spoke-SDP protection and provides the CLI commands; see Figure 1. The following tasks should be performed on all four nodes providing the protected VPLS service. Before configuring a management VPLS, see Configuring a VPLS SAP for an introduction to the concept of management VPLS and spoke-SDP redundancy.

Create an SDP to the local peer node (node ALA-A2 in the following example).
Create an SDP to the remote peer node (node ALA-B1 in the following example).
Create a management VPLS.
Create a spoke-SDP in the M-VPLS using the SDP defined in Step 1. Ensure that this mesh SDP runs over a protected LSP (see note below).
Enable the management VPLS service and verify that it is operationally up.
Create a spoke-SDP in the M-VPLS using the SDP defined in Step 2. Optionally, modify STP parameters for load balancing (see Configuring Load Balancing with Management VPLS).
Create one or more user VPLS services with spoke-SDPs on the tunnel SDP defined by Step 2.

As long as the user spoke-SDPs created in step 7 are in this same tunnel SDP with the management spoke-SDP created in step 6, the management VPLS protects them.

Note:

The SDP should be protected by, for example, a backup LSP or Fast Reroute. If the SDP went down, STP on both nodes would go to forwarding state and a loop would occur.

Figure 1. Example Configuration for Protected VPLS Spoke-SDP

Use the following CLI syntax to create a management VPLS for spoke-SDP protection.

CLI syntax:

config>service# sdp sdp-id mpls create
    — far-end ip-address
    — lsp lsp-name
    — no shutdown

CLI syntax:

vpls service-id customer customer-id [m-vpls] create
    — description description-string
    — mesh-sdp sdp-id:vc-id create
    — spoke-sdp sdp-id:vc-id create
    — stp
    — no shutdown

The following example shows a VPLS configuration:

*A:ALA-A1>config>service# info
----------------------------------------------
...
       sdp 100 mpls create
            far-end 10.0.0.30
            lsp "toALA-B1"
            no shutdown
       exit
       sdp 300 mpls create
            far-end 10.0.0.20
            lsp "toALA-A2"
            no shutdown
       exit
       vpls 101 customer 1 m-vpls create
            spoke-sdp 100:1 create
            exit
            meshspoke-sdp 300:1 create
            exit
            stp
            exit
            no shutdown
        exit
...
----------------------------------------------
*A:ALA-A1>config>service#