Re: R: Kernel bug handling TCP_RTO_MAX?

From: Nivedita Singhvi (
Date: Thu Dec 12 2002 - 15:37:33 EST

> 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.

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This archive was generated by hypermail 2b29 : Sun Dec 15 2002 - 22:00:26 EST