Configure MPLS-Signaled LSPs

To configure MPLS-signaled label-switched paths (LSPs), you create an LSP that runs from the ingress router to the egress router. (For information about LDP-signaled LSPs, see Configure LDP.) To create the LSP, you configure only the ingress router; you do not have to configure any other routers. You can configure the LSP so that the JUNOS software makes all forwarding decisions, or you can configure some or all routers in the path. The LSP is set up by Resource Reservation Protocol (RSVP), through RSVP signaling messages. The JUNOS software automatically negotiates, assigns, releases, and reuses labels. Automatically assigned labels have a value from 99,999 through 1,048,575.

To configure signaled LSPs across a network, perform the following tasks:

• Configure the Ingress Router for Signaled LSPs
• Configure All Other MPLS Routers for Signaled LSPs
• Enable RSVP

These sections provide information about special features related to signaled LSPs:

• Improving TED Accuracy with RSVP PathErr Messages
• Configure MPLS over GRE Tunnels
• Configure IPv6 Tunnels over MPLS
• LSP Attributes for GMPLS

For configuration examples, see Examples: Configure Signaled LSPs.