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From: Nivedita Singhvi <niv@us.ibm.com>
To: stefano.andreani.ap@h3g.it, linux-kernel@vger.kernel.org
Subject: Re: R: Kernel bug handling TCP_RTO_MAX?
Date: Thu, 12 Dec 2002 12:37:33 -0800	[thread overview]
Message-ID: <3DF8F38D.E2A47634@us.ibm.com> (raw)

> Never say never ;-) 
> I need to change it now as a temporary workaround for a problem in the UMTS core \
> network of my company. But I think there could be thousands of situations where a \
> fine tuning of this TCP parameter could be useful.
> 
> Any contributes on the problem?


If what you are trying to do is terminate the connection earlier,
than reduce the tcp sysctl variable tcp_retries2. This should be the
maximum number of retransmits TCP will make in established state.

The TCP_RTO_MAX parameter is simply an *upper bound* on the 
value of the retransmission timeout, which increases exponentially
from the original timeout value. 

thanks,
Nivedita

             reply	other threads:[~2002-12-12 20:33 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-12-12 20:37 Nivedita Singhvi [this message]
  -- strict thread matches above, loose matches on Subject: below --
2002-12-13  6:55 R: Kernel bug handling TCP_RTO_MAX? David Stevens
2002-12-13  6:59 ` David S. Miller
2002-12-13 11:46   ` Bogdan Costescu
2002-12-13 11:48     ` Andrew McGregor
2002-12-13 12:33       ` Bogdan Costescu
2002-12-13 13:07         ` Andrew McGregor
2002-12-13 18:07       ` Nivedita Singhvi
2002-12-13 22:25         ` Andrew McGregor
2002-12-13 22:58         ` Matti Aarnio
2002-12-12 20:18 Andreani Stefano
2002-12-12 20:32 ` David S. Miller
2002-12-12 21:16 ` Alan Cox
2002-12-13  2:26   ` Nivedita Singhvi
2002-12-13  3:39     ` Matti Aarnio
2002-12-13  4:45       ` Nivedita Singhvi
2002-12-13  6:26         ` Nivedita Singhvi
2002-12-13 11:40         ` Andrew McGregor
2002-12-13  5:23       ` David S. Miller

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