FW: Network tuning for Nagios with slave servers

Wheeler, JF (Jonathan) J.F.Wheeler at rl.ac.uk
Fri Sep 7 15:35:07 CEST 2007


-----Original Message-----
From: kyleodonnell at gmail.com [mailto:kyleodonnell at gmail.com] On Behalf
Of kyle.odonnell at gmail.com
Sent: 07 September 2007 14:22

> Could always try:
> 
> net.core.rmem_max = 16777216
> net.core.wmem_max = 16777216
> net.ipv4.tcp_rmem = 4096 87380 16777216
> net.ipv4.tcp_wmem = 4096 65536 16777216
> net.ipv4.tcp_timestamps = 0
> net.ipv4.tcp_sack = 0

Thanks for the suggestions.  We are beginning to suspect a switch issue
as there are other applications that are suffering packet loss in
various ways.

Jonathan Wheeler
e-Science Centre
Rutherford Appleton Laboratory

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