RFC 5441: A Backward-Recursive PCE-Based Computation (BRPC) Procedure to Compute Shortest Constrained Inter-Domain Traffic Engineering Label Switched Paths
In plain English — editorial summary, not part of the RFC
The ability to compute shortest constrained Traffic Engineering Label Switched Paths (TE LSPs) in Multiprotocol Label Switching (MPLS) and Generalized MPLS (GMPLS) networks across multiple domains has been identified as a key requirement. In this context, a domain is a collection of network elements within a common sphere of address management or path computational responsibility such as an IGP area or an Autonomous Systems. This document specifies a procedure relying on the use of multiple Path Computation Elements (PCEs) to compute such inter-domain shortest constrained paths across a predetermined sequence of domains, using a backward-recursive path computation technique. This technique preserves confidentiality across domains, which is sometimes required when domains are managed by different service providers. [STANDARDS-TRACK]
Document record
- Document ID
- RFC5441
- Published
- April 2009
- Authors
- JP. Vasseur; R. Zhang; N. Bitar; JL. Le Roux
- Status
- PROPOSED STANDARD
- Stream
- IETF
- Area
- rtg
- Pages
- 18
- Also known as
- —
Topics
Related documents
Ranked automatically by shared keywords, IETF area and stream — not by editorial selection.
- RFC 5376Inter-AS Requirements for the Path Computation Element Communication Protocol (PCECP)Current
November 2008
- RFC 5712MPLS Traffic Engineering Soft PreemptionCurrent
January 2010
- RFC 4927Path Computation Element Communication Protocol (PCECP) Specific Requirements for Inter-Area MPLS and GMPLS Traffic EngineeringCurrent
June 2007
- RFC 4206Label Switched Paths (LSP) Hierarchy with Generalized Multi-Protocol Label Switching (GMPLS) Traffic Engineering (TE)Updated
October 2005
- RFC 8413Framework for Scheduled Use of ResourcesCurrent
July 2018
- RFC 8786Updated Rules for Processing Stateful PCE Request Parameters FlagsCurrent
May 2020
- RFC 8934PCE Communication Protocol (PCEP) Extensions for Label Switched Path (LSP) Scheduling with Stateful PCEUpdated
October 2020
- RFC 9353IGP Extension for Path Computation Element Communication Protocol (PCEP) Security Capability Support in PCE Discovery (PCED)Current
January 2023
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