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Configure Node-Link Protection


Configuring node-link protection is a two-part process. The first part involves configuring node-link protection for any LSPs traversing the protected node that require use of the bypass path, and the second part sets link protection on the outgoing RSVP interface on routers in the LSP.


To configure node-link protection, follow these steps:

  1. In configuration mode, go to the following hierarchy level:

    For example:

  2. Configure node-link protection for the LSP:

  3. Verify the node-link protection configuration for the LSP:

  4. Configure link protection for the interface:

    For example:

  5. Configure link protection:

  6. Verify the link protection configuration for the interface, and commit both configurations:

  7. Repeat Step 1 through Step 3 on any other ingress routers that have LSPs requiring use of the bypass path.

  8. Repeat Step 4 and Step 5 on routers with outgoing interfaces in the LSP.

Sample Output

The following sample output shows the configuration of node-link protection on ingress router R1 in the network shown in Many-to-One or Link Protection:


The sample output shows the configuration of node-link protection for an LSP. After node-link protection is configured, bypass paths are signaled to avoid the protected link or node in case of failure. Having bypass paths available does not in itself provide protection for LSPs that traverse the protected node. You must include the node-link-protection statement on the ingress router for each LSP that will benefit from the bypass path.