Extensions to the Path Computation Element Communication Protocol (PCEP) to compute service aware Label Switched Path (LSP).
|Document||Type||Replaced Internet-Draft (individual)|
|Last updated||2013-08-29 (latest revision 2013-02-25)|
|Intended RFC status||(None)|
Expired & archivedplain text pdf html
|Stream||Stream state||(No stream defined)|
|Document shepherd||No shepherd assigned|
|IESG||IESG state||Replaced by draft-ietf-pce-pcep-service-aware|
|Send notices to||(None)|
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.
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