How can I measure the network load ?

Hi

I am looking for a tool allowing to get periodically
the network load of some machines on a local area network
(Linux and Solaris 8), and the amount of information
between clients and servers of my distributed application.

The aim is to gather enough information to optimize
the distribution of my processes over the network,
to know which clients/servers are the most bandwith
consuming in runtime conditons, and so on ...

I tried netstat, but this does not give me full
satisfaction, and the result is different on Linux
and Solaris.

Thanks for any advice !

Nicolas

> I am looking for a tool allowing to get periodically
> the network load of some machines on a local area network

Try ntop.

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Andrew Schulman wrote:
>>I am looking for a tool allowing to get periodically
>>the network load of some machines on a local area network
>
>
> Try ntop.
>

Many thanks, Andrew

ntop does exactly what I need ..... but I am not root
and so I can't use it (according to my system administrators)

Any other hint ?

N.

Nicolas HUYNH <huynh@ath.cena.fr> wrote in message news:<3FBB407C.1070701@ath.cena.fr>...
> Hi
>
> I am looking for a tool allowing to get periodically
> the network load of some machines on a local area network
> (Linux and Solaris 8), and the amount of information
> between clients and servers of my distributed application.
>
> The aim is to gather enough information to optimize
> the distribution of my processes over the network,
> to know which clients/servers are the most bandwith
> consuming in runtime conditons, and so on ...
>
> I tried netstat, but this does not give me full
> satisfaction, and the result is different on Linux
> and Solaris.
>
> Thanks for any advice !
>
> Nicolas

ifconfig will tell you the usage on a per-adapter basis - any good to ya?

>>>I am looking for a tool allowing to get periodically
>>>the network load of some machines on a local area network
>>
>>
>> Try ntop.
>>
>
> Many thanks, Andrew
>
> ntop does exactly what I need ..... but I am not root
> and so I can't use it (according to my system administrators)
>
> Any other hint ?

Hm... your admins are right. ntop puts the NIC into promiscuous mode, in
order to snoop data off of the wire. Only root is allowed to do that.

Since you're able to discuss your need for networking data with your admins,
I suggest that you ask them what solution they recommend that meets your
needs and theirs. Maybe they could set up some kind of client and server,
or craft some permissions for ntop which would allow you to use it.

Let us know what you work out.
Andrew.

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On Wed, 19 Nov 2003 11:05:48 +0100, Nicolas HUYNH <huynh@ath.cena.fr>
wrote:

>Hi
>
>I am looking for a tool allowing to get periodically
>the network load of some machines on a local area network
>(Linux and Solaris 8), and the amount of information
>between clients and servers of my distributed application.
>
>The aim is to gather enough information to optimize
>the distribution of my processes over the network,
>to know which clients/servers are the most bandwith
>consuming in runtime conditons, and so on ...
>
>I tried netstat, but this does not give me full
>satisfaction, and the result is different on Linux
>and Solaris.
>
>Thanks for any advice !
>
>Nicolas

iptraf can give you this information

Andrew Schulman wrote:
>>>>I am looking for a tool allowing to get periodically
>>>>the network load of some machines on a local area network
>>>
>>>
>>>Try ntop.
>>>
>>
>>Many thanks, Andrew
>>
>>ntop does exactly what I need ..... but I am not root
>>and so I can't use it (according to my system administrators)
>>
>>Any other hint ?
>
>
> Hm... your admins are right. ntop puts the NIC into promiscuous mode, in
> order to snoop data off of the wire. Only root is allowed to do that.
>
> Since you're able to discuss your need for networking data with your admins,
> I suggest that you ask them what solution they recommend that meets your
> needs and theirs. Maybe they could set up some kind of client and server,
> or craft some permissions for ntop which would allow you to use it.
>
> Let us know what you work out.
> Andrew.
>

Can they create a 'sudo' account for you, so you can run ntop? Very simple.