RFC 8840

A Session Initiation Protocol (SIP) Usage for Incremental Provisioning of Candidates for the Interactive Connectivity Establishment (Trickle ICE), January 2021

File formats:

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Status:
PROPOSED STANDARD
Authors:
E. Ivov
T. Stach
E. Marocco
C. Holmberg
Stream:
IETF
Source:
mmusic (art)

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC8840

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Abstract

The Interactive Connectivity Establishment (ICE) protocol describes a Network Address Translator (NAT) traversal mechanism for UDP-based multimedia sessions established with the Offer/Answer model. The ICE extension for Incremental Provisioning of Candidates (Trickle ICE) defines a mechanism that allows ICE Agents to shorten session establishment delays by making the candidate gathering and connectivity checking phases of ICE non-blocking and by executing them in parallel.

This document defines usage semantics for Trickle ICE with the Session Initiation Protocol (SIP). The document also defines a new SIP Info Package to support this usage together with the corresponding media type. Additionally, a new Session Description Protocol (SDP) "end-of-candidates" attribute and a new SIP option tag "trickle-ice" are defined.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.