Looks like our on-campus networks are being hammered by W32/IRCbot.worm - the Learning Commons webserver, Pachyderm, APOLLO, as well as the main U of C website are all being affected by terabytes of virus traffic taking over the network.
Even though our servers aren't running the Biggest Security Hole Known to Man, and are themselves quite safe, they don't have any bandwidth available due to the predominance of lesser boxes on the network.
I'm wondering if we should have a separate isolated network on campus for risky and untrusted machines, and just move all Windows machines onto that. We could then disconnect the whole lot of them when they get infested again (not if, but when).