RE: Any good method to check network overload?

["Trevor Cushen" <Trevor.Cushen () sysnet ie>]

Have you looked at MRTG?

http://people.ee.ethz.ch/~oetiker/webtools/mrtg/

Also Etherape and NTOP work nicely for traffic monitoring.

http://etherape.sourceforge.net/
http://www.ntop.org/ntop.html

Trevor Cushen
Sysnet Ltd

www.sysnet.ie
Tel: +353 1 2983000
Fax: +353 1 2960499



-----Original Message-----
From: swin [mailto:swin () student dlut edu cn] 
Sent: 05 March 2003 05:47
To: gillettdavid () fhda edu
Cc: security-basics () securityfocus com
Subject: RE: Any good method to check network overload?


David Wrote:
> This suggests that if ping times are consistently more than some value,

> or are timing out, then the network is probably overloaded.  (Pings 
> will also time out if the router is down, but you probably want to 
> alert for that, too.  If you need to distinguish between the two cases,

> compare pings OF the router with pings THROUGH the router.)

  What we want is an reliable way to check overload ,and we especially 
accentuate it should be reliable,this method sounds a lttle rough,indeed
it can check if system is overload,but is it very reliable for automatic
check?and we hope to install the check program on the server or router
itself,if so ,is it different? 

  Thanks for you suggestion!

  swin. wang

******************************************************************************

This email and any files transmitted with it are confidential and intended 
solely for the use of the individual or entity to whom they are addressed. 

If you have received this message in error please notify SYSNET Ltd., at
telephone no: +353-1-2983000 or postmaster () sysnet ie

******************************************************************************