On 04/02/2013 10:25 PM, Ted Lemon wrote: > On Apr 2, 2013, at 7:30 PM, Fernando Gont <fgont@xxxxxxxxxxxxxxx> wrote: >>> I agree with the last sentence. Happy Eyeballs is about the HTTP. >>> There are other applications protocols too. :-) >> >> Happy eyeballs is about HTTP. But part of the approach predates "Happy >> Eyeballs" -- please see RFC5461. > > It's certainly true that we usually talk about Happy Eyeballs in the context of HTTP, but I use it for ssh as well, and I think it's applicable across a broad range of application protocols. It is not applicable to _every_ protocol, but that's as strong a qualification as I'd put on it—saying it's only applicable to HTTP is not correct. > Exactly. For instance, I seem to recall benefiting of RFC5461 for ssh in NetBSD long before the first version of the Happy Eyeballs I-D was published. As noted in RFC5461, the approach is useful for any protocol -- but for obvious reasons the benefits become evident for interactive protocols such as HTTP, SSH, telnet, and the like... Cheers, -- Fernando Gont SI6 Networks e-mail: fgont@xxxxxxxxxxxxxxx PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492