Network Working Group S. Giacalone
Internet Draft Thomson Reuters
Intended status: Proposed Standard
Expires: August 2013 D. Ward
Cisco Systems
J. Drake
Juniper Networks
A. Atlas
Juniper Networks
S. Previdi
Cisco Systems
February 25, 2013
OSPF Traffic Engineering (TE) Metric Extensions
draft-ietf-ospf-te-metric-extensions-03.txt
Abstract
In certain networks, such as, but not limited to, financial
information networks (e.g. stock market data providers), network
performance criteria (e.g. latency) are becoming as critical to data
path selection as other metrics.
This document describes extensions to OSPF TE [RFC3630] such that
network performance information can be distributed and collected in a
scalable fashion. The information distributed using OSPF TE Metric
Extensions can then be used to make path selection decisions based on
network performance.
Note that this document only covers the mechanisms with which network
performance information is distributed. The mechanisms for measuring
network performance or acting on that information, once distributed,
are outside the scope of this document.
Status of this Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Giacalone, et al Expires August 25, 2013 [Page 1]
Internet-Draft OSPF TE Metric Extensions February 2013
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Table of Contents
1. Introduction...................................................3
2. Conventions used in this document..............................4
3. TE Metric Extensions to OSPF TE................................5
4. Sub TLV Details................................................6
4.1. Unidirectional Link Delay Sub-TLV.........................6
4.1.1. Type.................................................7
4.1.2. Length...............................................7
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Internet-Draft OSPF TE Metric Extensions February 2013
4.1.3. A bit................................................7
4.1.4. Reserved.............................................7
4.1.5. Delay Value..........................................7
4.2. Unidirectional Delay Variation Sub-TLV....................7
4.2.1. Type.................................................8
4.2.2. Length...............................................8
4.2.3. Reserved.............................................8
4.2.4. Delay Variation......................................8
4.3. Unidirectional Link Loss Sub-TLV..........................8
4.3.1. Type.................................................8
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