Configuring Static LSPs

To configure static LSPs, configure the ingress router and each router along the path up to and including the egress router.

For the ingress router, configure which packets to tag (based on the packet’s IP destination address), the next router in the LSP, and the tag to apply to the packet. Manually assigned labels can have values from 1,000,000 through 1,048,575. Optionally, you can apply preference and class-of-service (CoS) values to the packets.

For the intermediate routers in the path, configure the next router in the path and the tag to apply to the packet. Again, you can optionally apply preference and CoS values to the packets.

For the egress router, you generally just remove the label and continue forwarding the packet to the next hop. However, if the previous router removed the label, the egress router examines the packet’s IP header and forwards the packet toward its IP destination.

To configure static Multiprotocol Label Switching (MPLS), perform the following tasks:

• Configuring the Ingress Router for Static LSPs
• Configuring the Intermediate and Egress Routers for Static LSPs
• Configuring Static Unicast Routes for Point-to-Multipoint LSPs

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