RFC 7810

IS-IS Traffic Engineering (TE) Metric Extensions, May 2016

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Obsoleted by:
RFC 8570
S. Previdi, Ed.
S. Giacalone
D. Ward
J. Drake
Q. Wu
isis (rtg)

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DOI:  https://doi.org/10.17487/RFC7810

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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 IS-IS Traffic Engineering Extensions (RFC 5305) such that network-performance information can be distributed and collected in a scalable fashion. The information distributed using IS-IS 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.

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.

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