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Extensions to the Path Computation Element Communication Protocol (PCEP) to compute service aware Label Switched Path (LSP).

Document type: Replaced Internet-Draft (individual)
Document stream: No stream defined
Last updated: 2013-08-29 (latest revision 2013-02-25)
Intended RFC status: Unknown
Other versions: (expired, archived): plain text, pdf, html

Stream State:No stream defined
Document shepherd: No shepherd assigned

IESG State: Replaced by draft-ietf-pce-pcep-service-aware
Responsible AD: (None)
Send notices to: No addresses provided

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found here:


In certain networks like financial information network (stock/ commodity trading) and enterprises using cloud based applications, Latency (delay), Latency-Variation (jitter) and Packet loss is becoming a key requirement for path computation along with other constraints and metrics. Latency, Latency-Variation and Packet Loss is associated with the Service Level Agreement (SLA) between customers and service providers. [MPLS-DELAY-FWK] describes MPLS architecture to allow Latency (delay), Latency-Variation (jitter) and Packet loss as properties. [OSPF-TE-EXPRESS] and [ISIS-TE-EXPRESS] describes mechanisms with which network performance information is distributed via OSPF and ISIS respectively. This document describes the extension to PCEP to carry Latency, Latency-Variation and Loss as constraints for end to end path computation.


Dhruv Dhody <>
Vishwas Manral <>
Zafar Ali <>
George Swallow <>
Kenji Kumaki <>

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid)