Generalized MPLS RSVP-TE Signaling Extensions in Support of Calls
RFC 4974, “Generalized MPLS RSVP-TE Signaling Extensions in Support of Calls”, is a Proposed Standard document published in August 2007 by D. Papadimitriou, A. Farrel. It updates RFC 3473. It has since been updated by RFC 6001. The canonical text is published by the RFC Editor.
Abstract
In certain networking topologies, it may be advantageous to maintain associations between endpoints and key transit points to support an instance of a service. Such associations are known as Calls.
A Call does not provide the actual connectivity for transmitting user traffic, but only builds a relationship by which subsequent Connections may be made. In Generalized MPLS (GMPLS) such Connections are known as Label Switched Paths (LSPs).
This document specifies how GMPLS Resource Reservation Protocol - Traffic Engineering (RSVP-TE) signaling may be used and extended to support Calls. These mechanisms provide full and logical Call/Connection separation.
The mechanisms proposed in this document are applicable to any environment (including multi-area), and for any type of interface: packet, layer-2, time-division multiplexed, lambda, or fiber switching. [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 4974 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 4973 OSPF-xTE: Experimental Extension to OSPF for Traffic Engineering
- RFC 4975 The Message Session Relay Protocol
- RFC 4972 Routing Extensions for Discovery of Multiprotocol Label Switch Router Traffic Engineering Mesh Membership
- RFC 4976 Relay Extensions for the Message Sessions Relay Protocol
- RFC 4971 Intermediate System to Intermediate System Extensions for Advertising Router Information
- RFC 4977 Problem Statement: Dual Stack Mobility
- RFC 4970 Extensions to OSPF for Advertising Optional Router Capabilities
- RFC 4978 The IMAP COMPRESS Extension