Monitoring a switch

[Andrea Venturoli]

Hello.
I'm looking for some software which can monitor a SNMP-enabled switch.
Sure I can use Cacti to monitor bandwidth of every single port... or 
Nagios to warn me if some port gets some defined amount of traffic for a 
defined amount of time...

I was wondering though, if there was some more specific tool which might 
be faster to setup and would do some magic automatically, like computing 
the total traffic flowing through, identifying bottlenecks, etc...

  bye & Thanks
	av.