The protocol's principles of operation are highlighted, the network context for which it was developed is described, guidelines for deployment are offered, and known protocol limitations are indicated. This applicability statement concerns only the use of RSVP to set up unicast LSP-tunnels. Aspects related to the support of other features and capabilities of RSVP by an implementation that also supports LSP-tunnels are beyond the scope of this document. However, support of such additional features and capabilities should not introduce new security vulnerabilities in environments that only use RSVP to set up LSP-tunnels. This applicability statement does not preclude the use of other signaling and label distribution protocols for the traffic engineering application in MPLS based networks.
Service providers are free to deploy whatever signaling protocol that meets their needs.
Therefore, network administrators should make a choice between the two based upon their needs and particular situation. New error messages are defined to provide notification of exception conditions. Expires Oct 2001 transport layer protocol. 3.0 Applicability of Extensions to RSVP for LSP Tunnels Use of RSVP-TE is appropriate in contexts where it is useful to establish and maintain explicit label switched paths in an MPLS network. They may also be instantiated for other administrative reasons.