> > Flow-based: Foundry with IronCore modules, Cisco Catalyst 6500 with Sup1(A) > > Prefix-based: Foundry with JetCore modules, Cisco Catalyst 6500/7600 with > > Sup2(A), Sup3(A/BXL) > Where do the Extreme and Juniper fit into this?
Private and public answers to my question indicate that both Summit 48i and Black Diamond from Extreme are flow-based; Juniper doesn't make layer 3 switches, but their routers also do prefix-based forwarding; Cisco routers also do prefix-based forwarding at usual configurations. Also of notice, flow-based forwarding is not the only thing that makes a L3 device suffer at worm attacks. If a directly connected interface is an Ethernet (or any other medium that is not point to point), ARPing for a lot of new addresses per second can also do harm. Rubens > > > > > ----- Original Message ----- > > From: <[EMAIL PROTECTED]> > > To: "Brent Van Dussen" <[EMAIL PROTECTED]> > > Cc: "NANOG" <[EMAIL PROTECTED]> > > Sent: Tuesday, January 20, 2004 9:46 PM > > Subject: Re: Nachi/Welchia Aftermath > > > > > lesson learned: > > > stop using /makeshift/ layer3 switches (without naming vendor) to run > > > L3 core