RFC 8189

Multi-Cost Application-Layer Traffic Optimization (ALTO), October 2017

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S. Randriamasy
W. Roome
N. Schwan
alto (ops)

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DOI:  https://doi.org/10.17487/RFC8189

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The Application-Layer Traffic Optimization (ALTO) protocol, specified in RFC 7285, defines several services that return various metrics describing the costs between network endpoints.

This document defines a new service that allows an ALTO Client to retrieve several cost metrics in a single request for an ALTO filtered cost map and endpoint cost map. In addition, it extends the constraints to further filter those maps by allowing an ALTO Client to specify a logical combination of tests on several cost metrics.

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.

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