TCP Candidates with Interactive Connectivity Establishment
RFC 6544, “TCP Candidates with Interactive Connectivity Establishment”, is a Proposed Standard document published in March 2012 by J. Rosenberg, A. Keranen, B. B. Lowekamp, A. B. Roach. The canonical text is published by the RFC Editor.
Abstract
Interactive Connectivity Establishment (ICE) defines a mechanism for NAT traversal for multimedia communication protocols based on the offer/answer model of session negotiation. ICE works by providing a set of candidate transport addresses for each media stream, which are then validated with peer-to-peer connectivity checks based on Session Traversal Utilities for NAT (STUN). ICE provides a general framework for describing candidates but only defines UDP-based media streams. This specification extends ICE to TCP-based media, including the ability to offer a mix of TCP and UDP-based candidates for a single stream. [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 6544 is hosted at rfc-editor.org. Available in TXT,HTML.
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