Re: [v6ops] I-D Action: draft-vyncke-v6ops-happy-eyeballs-cookie-00.txt

Jeroen Massar <jeroen@massar.ch> Thu, 30 October 2014 13:31 UTC

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Date: Thu, 30 Oct 2014 14:31:48 +0100
From: Jeroen Massar <jeroen@massar.ch>
Organization: Massar
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To: Simon Perreault <sperreault@jive.com>, "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
References: <20141027195522.23487.548.idtracker@ietfa.amsl.com> <5A5248BF-9E86-4B90-B344-C2DE1A3A8B56@cisco.com> <CAKC-DJhMf72D4wUcSL1_t_mSBLHotNm2KPE4v8OW94wfpHMN5w@mail.gmail.com> <D0771643.30804%evyncke@cisco.com> <CAKC-DJg+G59rjwj-UX0zGj01KLvq9Ark1sL=pVytGT0znC2BmQ@mail.gmail.com> <929CBC54-691A-4D35-AAF5-1F02C7D84073@lists.zabbadoz.net> <617295AC-ABF0-451C-BA9C-4BEA048DD19A@nominum.com> <B8D9659B-6736-42F9-8208-92B69DF1E53D@lists.zabbadoz.net> <CANO7kWAvbrDBDD4nKKZ0hnDPywzHYHp8_cDcvDAAL9Xu=5BQmA@mail.gmail.com>
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Subject: Re: [v6ops] I-D Action: draft-vyncke-v6ops-happy-eyeballs-cookie-00.txt
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On 2014-10-30 14:21, Simon Perreault wrote:
[..]
> you shouldn't care about which source
> address is picked when calling connect_by_name() or whatever other
> HE-like API out there.

While in the general case you should not care, it would be really useful
if there is a knob that makes it deterministic, so that you are not
swapping between source/dest pairs all the time.

Sometimes you actually want to debug the problem, to fix the issue
instead of the world breaking behind your back.

On OSX that means SSHing into another box (eg Linux) which does not muck
around with randomness based on the position of the moon.

Well, latency + throughput, *apparently*, nobody really knows the
parameters they use for picking what the destination will be or how th
results of getaddrinfo() get sorted.

Greets,
 Jeroen