From: Rich Bonfoey (Rich.Bonfoey@thenewstribune.com)
Date: Fri Apr 01 2005 - 14:12:12 EST
Many thanks to Eric Voisard and Sam Nelson for sharing their expertise.
Eric provided
insight to another variable tcp_time_wait_interval, that it can have an
affect on connections. Sam , very graciously provided a script that he
uses to tune and sanitize the tcp stack
Below is the original message
With Eric and Sam's replays
Thanks again for the info
Rich
-----Original Message-----
From: Rich Bonfoey
Sent: Thursday, March 31, 2005 9:55 AM
To: Sun Managers (sunmanagers@sunmanagers.org)
Subject: TCP_keepalive
Greetings
Have any of you, had much dealings with the tcp_keepalive ?
On Solaris 8 and 9 the value is 7200000 or 2 hours. What are some of the
pit falls if this value was lowered to about 10 minutes. I have read the
RFC but was looking for people who have had real experience with tweaking
this value.
Part of the reason for tweaking, is we have a large number of PC and OS 10
users connecting to several different systems and they have been having
performance issues. Our dba decided to bring in a consultant ( that's
another story ) and they said this value should be 5 minutes. I am not
quite buying it, as I have read that there are multiple opinion on the
correct use of tcp_keepalive.
Richard Bonfoey
The News Tribune
Information Systems
Successfully Meeting the Business Needs of
The News Tribune through Information Technology
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