lkml.org 
[lkml]   [2002]   [Dec]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: R: Kernel bug handling TCP_RTO_MAX?
From
   From: Matti Aarnio <matti.aarnio@zmailer.org>
Date: Fri, 13 Dec 2002 05:39:28 +0200

On Thu, Dec 12, 2002 at 06:26:45PM -0800, Nivedita Singhvi wrote:
> Assuming you are on a local lan, your round trip
> times are going to be much less than 200 ms, and
> so using the TCP_RTO_MIN of 200ms ("The algorithm
> ensures that the rto cant go below that").
The RTO steps in only when there is a need to RETRANSMIT.
For that reason, it makes no sense to place its start
any shorter.

Actually, TCP_RTO_MIN cannot be made any smaller without
some serious thought.

The reason it is 200ms is due to the granularity of the BSD
TCP socket timers.

In short, the repercussions are not exactly well known, so it's
a research problem to fiddle here.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:31    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site