Re: [v6ops] Happy Eyeballs, v3!

Hi Ole,

Thanks for sharing this! This sounds like a great thing to also update in HEv2 — to point to your update document.

Largely, Happy Eyeballs leverages 6724 as one pass of its sorting algorithm, and then updates the overall sorting to move some v6 addresses up to the top. Initially glancing at the updated document, it seems that it won’t break or fundamentally change Happy Eyeballs, but instead be an incremental improvement. Does that align with your understanding as well?

Best,
Tommy

> On Nov 6, 2023, at 11:32 AM, Ole Troan <otroan=40employees.org@dmarc.ietf.org> wrote:
> 
> Tommy,
> 
> I’m a big fan of Happy Eyeballs.
> In 6man there is a proposal to update RFC6724 (source address selection / destination address selection).
> https://datatracker.ietf.org/doc/draft-ietf-6man-rfc6724-update/
> 
> Could you say a little more how happy eyeballs uses RFC6724 and if there are any changes to 6724 that would be beneficial to HE?
> 
> Cheers,
> Ole
> 
>> On 23 Oct 2023, at 18:38, Tommy Pauly <tpauly=40apple.com@dmarc.ietf.org> wrote:
>> 
>> Hello v6ops,
>> 
>> We’ve just published a new draft for “Happy Eyeballs Version 3”, which is intended as a -bis document to RFC 8305 (which was developed in this WG). There are a few major points that needed updating:
>> 
>> - Describing how to incorporate SVCB / HTTPS RRs
>> - Priority
>> - v4/v6 hints
>> - Affect on various timers, etc
>> - ECH, ALPN, etc
>> - Describing how happy eyeballs applies to QUIC (and also TLS over TCP)
>> 
>> The bulk of the document is the same as RFC 8305, but updates the logic and algorithm for these changes.
>> 
>> Please take a look! We’d love to discuss at IETF 118 as time permits.
>> 
>> Best,
>> Tommy
>> 
>>> Begin forwarded message:
>>> 
>>> From: internet-drafts@ietf.org
>>> Subject: New Version Notification for draft-pauly-v6ops-happy-eyeballs-v3-00.txt
>>> Date: October 23, 2023 at 9:34:00 AM PDT
>>> To: David Schinazi <dschinazi.ietf@gmail.com>, Kenichi Ishibashi <bashi@google.com>, Nidhi Jaju <nidhijaju@google.com>, Tommy Pauly <tpauly@apple.com>
>>> 
>>> A new version of Internet-Draft draft-pauly-v6ops-happy-eyeballs-v3-00.txt has
>>> been successfully submitted by Tommy Pauly and posted to the
>>> IETF repository.
>>> 
>>> Name:     draft-pauly-v6ops-happy-eyeballs-v3
>>> Revision: 00
>>> Title:    Happy Eyeballs Version 3: Better Connectivity Using Concurrency
>>> Date:     2023-10-23
>>> Group:    Individual Submission
>>> Pages:    18
>>> URL:      https://www.ietf.org/archive/id/draft-pauly-v6ops-happy-eyeballs-v3-00.txt
>>> Status:   https://datatracker.ietf.org/doc/draft-pauly-v6ops-happy-eyeballs-v3/
>>> HTML:     https://www.ietf.org/archive/id/draft-pauly-v6ops-happy-eyeballs-v3-00.html
>>> HTMLized: https://datatracker.ietf.org/doc/html/draft-pauly-v6ops-happy-eyeballs-v3
>>> 
>>> 
>>> Abstract:
>>> 
>>>  Many communication protocols operating over the modern Internet use
>>>  hostnames.  These often resolve to multiple IP addresses, each of
>>>  which may have different performance and connectivity
>>>  characteristics.  Since specific addresses or address families (IPv4
>>>  or IPv6) may be blocked, broken, or sub-optimal on a network, clients
>>>  that attempt multiple connections in parallel have a chance of
>>>  establishing a connection more quickly.  This document specifies
>>>  requirements for algorithms that reduce this user-visible delay and
>>>  provides an example algorithm, referred to as "Happy Eyeballs".  This
>>>  document updates the algorithm description in RFC 8305.
>>> 
>>> 
>>> 
>>> The IETF Secretariat
>>> 
>>> 
>> 
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