Re: [RE: Any good method to check network overload?]

[Shekhar Jha <shekhar-jha () usa net>]

swin,
I am not sure if I understand but what you are looking for is how the
trasmission time varies as the actual data passing through the network reaches
the max. bandwidth of the network.
It would be interesting to see what gurus would suggest for controlling the
data automatically so that bandwidth being used would go down.
Just trying to understand the problem.

"Chris Berry" <compjma () hotmail com> wrote:
> > From: swin <swin () student dlut edu cn>
> >    You all misunderstood me! what I want isn't a tool to check network
> > flow or just want to have it report.
> >    I'm doing a research  to find a good model to judge if network
> > is overload automaticlly,it may be a good algorithm but not a tool.no
> > matter to use ntop or mrtg, it just give a  statistic of network flow,
> > this is not hard to achive.but my problem is how to  judge network
> > overload in real-time and offer a countermeasure ,but not a monitor tool.
> >    David give a suggestion to check time delay in pinging,but I think
this
> > is not reliable.as we known ,we can get the data in realtime just like 
> > intop can do,but with this data how can we say at certain time the network
> > is overloaded ,what we need is a benchmark to decide if it is overloaded,
> > but what should this benchmark be and how to get this benchmark are the
> > problems.
> >    I don't know if I have explain it clearly,but I do holp get
suggestions
> > of it form others.
>
> Ok, what about running a sniffer, logging all info to a database, and run 
> some monitoring scripts on the database that report deviance from norm, you

> can tweak the settings for a few months till it does what you want.  Should

> be no load, although you'll have to have a special setup if you're using 
> switches.
>
> Chris Berry
> compjma () hotmail com
> Systems Administrator
> JM Associates
>
> "Linux and I have a love/hate relationship.  I hate its complexity until I 
> figure out how something works, then I love its power."
>
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