RFC 6555

"Happy Eyeballs: Success with Dual-Stack Hosts", April 2012

Canonical URL:

http://www.rfc-editor.org/rfc/rfc6555.txt
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Status:

PROPOSED STANDARD

Authors:

D. Wing
A. Yourtchenko

Stream:

IETF

Source:

v6ops (ops)

Please refer here for any errata for this document. To submit a new errata report, go to the main errata page.

Abstract

When a server's IPv4 path and protocol are working, but the server's IPv6 path and protocol are not working, a dual-stack client application experiences significant connection delay compared to an IPv4-only client. This is undesirable because it causes the dual- stack client to have a worse user experience. This document specifies requirements for algorithms that reduce this user-visible delay and provides an algorithm. [STANDARDS-TRACK]

For the definition of Stream, see RFC 4844.