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An Update to Happy Eyeballs

Document Type Replaced Internet-Draft (individual)
Expired & archived
Authors Tommy Pauly , David Schinazi
Last updated 2017-03-12
Replaced by draft-ietf-v6ops-rfc6555bis
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Replaced by draft-ietf-v6ops-rfc6555bis
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


"Happy Eyeballs" (RFC6555) is the name for a technique of reducing user-visible delays on dual-stack hosts. Since one address family (IPv4 or IPv6) may be blocked, broken, or sub-optimal on a network, clients that attempt connections for both address families in parallel have a higher chance of establishing a connection sooner. Now that this approach has been deployed at scale and measured for several years, the algorithm specification can be refined to improve its reliability and generalization.


Tommy Pauly
David Schinazi

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)