A Resource Reservation Protocol (RSVP) label-switched path (LSP) tunnel allows you to send RSVP LSPs inside other RSVP LSPs. This allows a network administrator to provide traffic engineering from one end of the network to the other. A useful application for this feature is to connect customer edge (CE) routers with provider edge (PE) routers by using an RSVP LSP, and then tunnel this edge LSP inside a second RSVP LSP traveling across the network core.
This document assumes you have a general understanding of Multiprotocol Label Switching (MPLS) and label switching concepts. For more information about MPLS, see the JUNOS MPLS Applications Configuration Guide.
This feature guide covers these topics: