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Extensions to the Path Computation Element Communication Protocol (PCEP) to compute service aware Label Switched Path (LSP).
draft-ietf-pce-pcep-service-aware-07

The information below is for an old version of the document.
Document Type Expired Internet-Draft (pce WG)
Authors Dhruv Dhody , Qin Wu , Vishwas Manral , Zafar Ali , Kenji Kumaki
Last updated 2015-08-31 (Latest revision 2015-02-27)
Replaces draft-dhody-pce-pcep-service-aware, draft-wu-pce-pcep-link-bw-utilization
Stream Internet Engineering Task Force (IETF)
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Expired & archived
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IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at:
https://www.ietf.org/archive/id/draft-ietf-pce-pcep-service-aware-07.txt

Abstract

In certain networks like financial information network (stock/ commodity trading) and enterprises using cloud based applications, Latency (delay), Latency Variation (jitter) and Packet Loss are becoming key requirements for path computation along with other constraints and metrics. These metrics are associated with the Service Level Agreement (SLA) between customers and service providers. The Link Bandwidth Utilization (the total bandwidth of a link in current use for the forwarding) is another important factor to consider during path computation. IGP Traffic Engineering (TE) Metric extensions describes mechanisms with which network performance information is distributed via OSPF and IS-IS respectively. The Path Computation Element Communication Protocol (PCEP) provides mechanisms for Path Computation Elements (PCEs) to perform path computations in response to Path Computation Clients (PCCs) requests. This document describes the extension to PCEP to carry Latency, Latency Variation, Packet Loss, and Link Bandwidth Utilization as constraints for end to end path computation.

Authors

Dhruv Dhody
Qin Wu
Vishwas Manral
Zafar Ali
Kenji Kumaki

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