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IETF RFC 3785
[ACTIVE]

Use of Interior Gateway Protocol (IGP) Metric as a second MPLS Traffic Engineering (TE) Metric

Metadata

Publisher
IETF
Doc Type
Best Practice
Pages
8
Abstract
This document describes a common practice on how the existing metric of Interior Gateway Protocols (IGP) can be used as an alternative metric to the Traffic Engineering (TE) metric for Constraint Based Routing of MultiProtocol Label Switching (MPLS) Traffic Engineering tunnels. This effectively results in the ability to perform Constraint Based Routing with optimization of one metric (e.g., link bandwidth) for some Traffic Engineering tunnels (e.g., Data Trunks) while optimizing another metric (e.g., propagation delay) for some other tunnels with different requirements (e.g., Voice Trunks). No protocol extensions or modifications are required. This text documents current router implementations and deployment practices. This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements.
Publication Date
2004-05-01
Status Note
Best Current Practice
DOI
10.17487/RFC3785
Link
https://doi.org/10.17487/RFC3785
Author(s)
François Le Faucheur
Ramesh Uppili
Alain Vedrenne
Pierre Merckx
Thomas Telkamp
Keyword(s)
IGP, MPLS, Traffic Engineering
Latest version of IETF RFC 3785

Document Versions — IETF RFC 3785

  • ▶ IETF RFC 3785 (2004-05-01)
    THIS DOC [ACTIVE] [LATEST VERSION]

Normative Reference(s)

Bibliographic Reference(s)

  • Fedyk, et al., "Multiple Metrics for Traffic Engineering with IS-IS and OSPF", Work in Progress, November 2000. EXTERNAL
  • Vasseur, et al., "RSVP Path computation request and reply messages", Work in Progress, June 2002. EXTERNAL
  • Kompella, et al., "LSP Hierarchy with Generalized MPLS TE", Work in Progress, September 2002. EXTERNAL
  • IETF RFC 3564 [Active*]
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IETF RFC 3785, Use of Interior Gateway Protocol (IGP) Metric as a second MPLS Traffic Engineering (TE) Metric. Available at https://doi.org/10.17487/RFC3785
Snippet:
IETF RFC 3785, Use of Interior Gateway Protocol (IGP) Metric as a second MPLS Traffic Engineering (TE) Metric. Available at https://doi.org/10.17487/RFC3785

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IETF RFC 3785, Use of Interior Gateway Protocol (IGP) Metric as a second MPLS Traffic Engineering (TE) Metric. Available at https://doi.org/10.17487/RFC3785
Snippet:
<span class="citation"><cite>IETF RFC 3785</cite>, Use of Interior Gateway Protocol (IGP) Metric as a second MPLS Traffic Engineering (TE) Metric. Available at <a href="https://doi.org/10.17487/RFC3785" target="_blank" rel="noopener">https://doi.org/10.17487/RFC3785</a></span>

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Preview:
IETF RFC 3785, Use of Interior Gateway Protocol (IGP) Metric as a second MPLS Traffic Engineering (TE) Metric
doi: 10.17487/RFC3785
url: https://doi.org/10.17487/RFC3785
Snippet:
<li>
<cite id="bib-rfc3785">IETF RFC 3785</cite>, Use of Interior Gateway Protocol (IGP) Metric as a second MPLS Traffic Engineering (TE) Metric
<span class="doi">10.17487/RFC3785</span>
</li>

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