Date: Sun, 13 May 2001 18:31:04 +0200 From: "Ali Niknam" <ali@iephosting.net> To: <questions@freebsd.org> Subject: TCP/IP Listen queue overflows? Message-ID: <00d801c0dbca$1b296bb0$0300a8c0@cow>
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Hi Guys,
As I'm not very well known with TCP/IP I need to ask you this question =
:) Hope it isn't too stupid ;)
When I do a netsat -s I get a line which says listen que overflows:
4104 listen queue overflows
How bad is this?=20
I already tried to solve it by doing this:
sysctl -w net.inet.tcp.recvspace=3D32768
sysctl -w net.inet.tcp.sendspace=3D32768
And although the amount decreased considerably, the problem is not =
completely lost. I am wondering if it is wise to enter bigger values?
Some background info: this server is used to host some sites and some =
other stuff and is currently doing an average of 5mbit/s traffic. Peak =
traffic is about 8mbit. Network cards in the machine are both Intel =
EtherExpress (which is currently used) and the 3Com 3c905C (which we =
don't use anymore, because there are big problems with this card.). A =
total of 1500MB of Ram is installed, and the machine is a Dual 866MHZ =
system (intel p3). Motherboard is an Abit, so VIA chipset.
All information is greatly appreciated,
Thanks,
Ali
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<DIV><FONT face=3DArial size=3D2>Hi Guys,</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>As I'm not very well known with TCP/IP =
I need to=20
ask you this question :) Hope it isn't too stupid ;)</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>When I do a netsat -s I get a line =
which says=20
listen que overflows:</FONT><FONT face=3DArial =
size=3D2><BR></FONT></DIV>
<DIV><FONT face=3DArial =
size=3D2> 4104=20
listen queue overflows</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>How bad is this? </FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>I already tried to solve it by doing=20
this:</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>sysctl -w =
net.inet.tcp.recvspace=3D32768<BR>sysctl -w=20
net.inet.tcp.sendspace=3D32768<BR></FONT></DIV>
<DIV><FONT face=3DArial size=3D2>And although the amount decreased =
considerably, the=20
problem is not completely lost. I am wondering if it is wise to enter =
bigger=20
values?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Some background info: this server is =
used to host=20
some sites and some other stuff and is currently doing an average of =
5mbit/s=20
traffic. Peak traffic is about 8mbit. Network cards in the machine are =
both=20
Intel EtherExpress (which is currently used) and the 3Com 3c905C (which =
we don't=20
use anymore, because there are big problems with this card.). A total of =
1500MB=20
of Ram is installed, and the machine is a Dual 866MHZ system (intel p3). =
Motherboard is an Abit, so VIA chipset.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>All information is greatly=20
appreciated,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Thanks,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Ali</FONT></DIV>
<DIV><FONT face=3DArial size=3D2><BR> </DIV></FONT></BODY></HTML>
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