MPLS-Signaled LSPs Configuration Guidelines

To configure Multiprotocol Label Switching (MPLS)-signaled label-switched paths (LSPs), you create an LSP that runs from the ingress router to the egress router. (For information about Label Distribution Protocol [LDP]-signaled LSPs, see LDP Configuration Guidelines.) 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 the 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:

• Configuring the Ingress Router for Signaled LSPs
• Configuring All Other MPLS Routers for Signaled LSPs
• Configuring an LSP
• Enabling RSVP

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

• Configuring Point-to-Multipoint LSPs
• Configuring MPLS Exception Monitoring
• Improving TED Accuracy with RSVP PathErr Messages
• Configuring MPLS over GRE Tunnels
• Configuring IPv6 Tunnels over MPLS
• Configuring ICMP Message Tunneling
• LSP Attributes for GMPLS

For configuration examples, see Examples: Configuring Signaled LSPs.