network traffic monitoring software/switch

["hakim" <hakim.st@web.de>]

Hi,

I am looking for twi things:

1. A tool which shows me the whole traffic of one interface, and from
the interface of the lan, it should show the traffic by ip-addresses.

2. Does anyone know a switch, which has an API or webinterface, where I
can read out the traffic by the ports of the switch.

Thanks a lot...

Achim