Resource Reservation Protocol - Traffic Engineering is an extension of the Resource Reservation Protocol (RSVP) for traffic engineering. It supports the reservation of resources across an

IP network The Internet protocol suite, commonly known as TCP/IP, is a framework for organizing the set of communication protocols used in the Internet and similar computer networks according to functional criteria. The foundational protocols in the suit ...

. Applications running on IP end systems can use RSVP to indicate to other nodes the nature ( bandwidth,

jitter In electronics and telecommunications, jitter is the deviation from true periodicity of a presumably periodic signal, often in relation to a reference clock signal. In clock recovery applications it is called timing jitter. Jitter is a significa ...

, maximum burst, and so forth) of the packet streams they want to receive. RSVP runs on both

IPv4 Internet Protocol version 4 (IPv4) is the fourth version of the Internet Protocol (IP). It is one of the core protocols of standards-based internetworking methods in the Internet and other packet-switched networks. IPv4 was the first version d ...

and

IPv6 Internet Protocol version 6 (IPv6) is the most recent version of the Internet Protocol (IP), the communications protocol that provides an identification and location system for computers on networks and routes traffic across the Internet. I ...

. RSVP-TE generally allows the establishment of MPLS label switched paths (LSPs), taking into consideration network constraint parameters such as available bandwidth and explicit hops. Updated by , , , , , , , , and .

History

, the IETF MPLS working group deprecated CR-LDP and decided to focus purely on RSVP-TE. Operational overhead of RSVP-TE compared to the more widely deployed label distribution protocol (LDP) will generally be higher. This is a classic

trade-off A trade-off (or tradeoff) is a situational decision that involves diminishing or losing one quality, quantity, or property of a set or design in return for gains in other aspects. In simple terms, a tradeoff is where one thing increases, and anot ...

between complexity and optimality in the use of technologies in

telecommunications network A telecommunications network is a group of nodes interconnected by telecommunications links that are used to exchange messages between the nodes. The links may use a variety of technologies based on the methodologies of circuit switching, mes ...

Standards

* - RSVP-TE: Extensions to RSVP for LSP Tunnels * - The Multiprotocol Label Switching (MPLS) Working Group decision on MPLS signaling protocols * - Fast Reroute Extensions to RSVP-TE for LSP Tunnels * - Exclude Routes - Extension to Resource ReserVation Protocol-Traffic Engineering (RSVP-TE) * - Crankback Signaling Extensions for MPLS and GMPLS RSVP-TE * - Inter-Domain MPLS and GMPLS Traffic Engineering—Resource Reservation Protocol-Traffic Engineering (RSVP-TE) Extensions * - Encoding of Attributes for Multiprotocol Label Switching (MPLS) Label Switched Path (LSP) Establishment Using Resource ReserVation Protocol-Traffic Engineering (RSVP-TE) * - Node Behavior upon Originating and Receiving Resource Reservation Protocol (RSVP) Path Error Messages * - Generalized MPLS (GMPLS) Protocol Extensions for Multi-Layer and Multi-Region Networks (MLN/MRN)

History

Standards

References

Further reading