"Dean (ZoRt!) Hamstead" wrote:
>
> im hoping someone can recommend a piece of software (free or otherwise)
> that will monitor network traffic in real time.
> counting collisions, bandwidth usage, packet types, and hosts.
> possibly with nice little graphs to help pick rough patches
> (broadcast storms, etc)
I'm going to pimp mrtg again :) You didn't state whether you want to
use SNMP or not, so I'll assume one of two scenarios.
1) you have a network involving switches/routers/etc and you wish to
graph the above.
mrtg uses snmp to query whatever devices you specify and will create web
pages with graphs (gif or png). look it up and read about it.
2) you want to monitor (& graph) what the linux box sees.
mrtg can also be spoonfed data at regular intervals to create graphs.
you can create a script(s) which will extract the information from
appropriate programs (top, uptime, free, ping, traceroute, whatever) and
hand it to mrtg. this is best done by running the script regularly with
a cron job. the script needs to hand 4 separate values (each on its own
line) to mrtg, which handles the rest.
--
Alexander Else
Internet Operations Technician
OzEmail / UUNET Asia Pacific Operations
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