Re: [tcpm] TCP tuning

Michael,

On Wed, Feb 3, 2010 at 6:42 AM, Michael Welzl <michawe@ifi.uio.no> wrote:
> Hi all,
>
> (sorry if this is a bit off topic, as the mentioned presentation is mainly
> about using a larger initial window)
>
> In the context of the discussion that Jerry brought up on parameter tuning,
> one question that was raised was the initial RTO during the SYN - SYN/ACK
> exchange. I understand that we can't recommend to resend SYN's more
> aggressively because this might cause a server to be overloaded with SYN's,
> but why do we have to wait extremely long until we resend SYN/ACKs?
>
> Back then, when I asked, I got no answer. Both Jerry and I pointed
> to our measurement results which show that the effect is nonneglible.

Actually Mark Allman, Vern Paxon and I have been working on revising
RFC2988 to reduce the initial RTO from 3secs to 1sec. Will submit the
proposal soon!

Best,

Jerry

>
> So I'll use this chance to ask again  :-)
>
> Cheers,
> Michael
>
>
> On Feb 3, 2010, at 3:28 PM, Lars Eggert wrote:
>
>> Hi,
>>
>> Jerry Chu has recently started the discussion on whether we need to think
>> about tweaking TCP for the "modern Internet." Just came across another
>> presentation from (AFAICT) another corner of Google that makes similar
>> arguments.
>>
>> FYI:
>> http://sites.google.com/a/chromium.org/dev/spdy/An_Argument_For_Changing_TCP_Slow_Start.pdf
>>
>> This topic seems to be gaining momentum, and the WG should take some time
>> considering if there is work here for it.
>>
>> Lars_______________________________________________
>> tcpm mailing list
>> tcpm@ietf.org
>> https://www.ietf.org/mailman/listinfo/tcpm
>
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