Cisco net-flows (on the router) can do this, and you can use rrd/mrtg to graph this info. -- Unsubscribe mailto:mrtg-request at list.ee.ethz.ch?subject=unsubscribe Archive http://www.ee.ethz.ch/~slist/mrtg FAQ http://faq.mrtg.org Homepage http://www.mrtg.org WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi