Automatic creation of RSVP-TE LSPs enables the automated creation of point-to-point RSVP-TE LSPs within a single IGP IS-IS level or OSPF area that can subsequently be used by services and/or IGP shortcuts. The feature is divided into two modes: creation of an RSVP-TE LSP mesh, and creation of single-hop RSVP-TE LSPs.
When creating an RSVP-TE LSP mesh, the mesh can be full or partial, the extent of which is governed by a prefix list containing the system addresses of all nodes that should form part of the mesh. When using single-hop RSVP-TE LSPs, point-to-point LSPs are established to all directly connected neighbors.
The use of automatically created RSVP-TE LSPs avoids manual configuration of RSVP-TE LSP meshes. Even when provisioning tools are used to automatically provision these LSPs, automatic creation of a mesh still provides a benefit by avoiding increased configuration file sizes.