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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 87. The
tasks below should be performed on all four nodes providing the protected VPLS service.
Before configuring a management VPLS, please first read Configuring a VPLS SAP on page 525
for an introduction to the concept of management VPLS and spoke SDP redundancy.
1. Create an SDP to the local peer node (node ALA-A2 in the example below).
2. Create an SDP to the remote peer node (node ALA-B1 in the example below).
3. Create a management VPLS.
4. 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).
5. Enable the management VPLS service and verify that it is operationally up.
6. 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 on page 559).
7. 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 7are in this same tunnel SDP with the management
spoke SDP created in step 6, the management VPLS will protect them.
The SDP should be protected by, for example, a backup LSP or Fast Reroute. If the SDP were to
go down, STP on both nodes would go to “forwarding” state and a loop would occur.