On Tue, 13 Jul 2010 18:11:45 -0000, "Dobbins, Roland" said:
During the Code Red/Nimda period (2001), and on into the Slammer/Blaster/Nachi period (2003), all the routers I personally know of which were adversely affected were software-based, didn't make use of ASICs for forwarding.
Cisco 7206VXF apparently had some issues dealing with it: https://puck.nether.net/pipermail/cisco-nsp/2003-September/005578.html Slammer's use of multicast addresses melted down at least a few large Cisco and Juniper boxes: http://paintsquirrel.ucs.indiana.edu/pdf/SLAMMER.pdf I wasn't aware that the 7206 and M20 classified as software-based. (cue weasel-words about those routers using ASICs for most forwarding, but doing multicast forwarding in software in 5.. 4.. 3..)