nv-l

FW: FW: [nv-l] Netmon initialization - how to speed it up?

2002-07-02 13:18:39
Subject: FW: FW: [nv-l] Netmon initialization - how to speed it up?
From: "Binder, Karin" <karin.binder AT nwa DOT com>
To: "Nv-L (E-mail)" <nv-l AT lists.tivoli DOT com>
Date: Tue, 2 Jul 2002 12:18:39 -0500
Ken,

Looks like we have some more tuning to do.  Thanks for your help on this - it 
is greatly appreciated.

Karin

-----Original Message-----
From: Ken.Garst AT kp DOT org [mailto:Ken.Garst AT kp DOT org]
Sent: Tuesday, July 02, 2002 10:39 AM
To: Binder, Karin
Cc: nv-l AT lists.tivoli DOT com
Subject: Re: FW: [nv-l] Netmon initialization - how to speed it up?



The hardware ethernet adapter parameters for 100 Mb/s should be set as
follows:

transmit queue size = 16384 (the maximum)
hardware receive queue size = 2048 (the maximum)
media speed = 100_Full_Duplex

The no parameters should be set as follows:

thewall = maximum
sb_max = 1048576
tcp_sendspace = 32768
tcp_recvspace = 32768
udp_sendspace = 56296 (or more)
udp_recvspace = 262144 ( or more)  (For NetView, this is one of the most
important parameters to make as big as possible since all traps are udp
packets.
tcp_mssdflt = 1500 (for ethernet adapter)
rfc1323 = 1

In addition, set /usr/samples/kernel/vmtune -p 5 -P 5.

Ensure that you have the correct amount of paging space, i.e. for up to 2Gb
memory, then 2-3 Gb paging space.

Regards,
ken


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