good question. anyone know the answer? JeffH ------- Forwarded Message Date: Tue, 28 Jan 2003 02:29:17 -0500 Subject: [IP] is it ATM or ATM Internet Attack's Disruptions More Serious Than Many Thought Possible From: Dave Farber <dave@farber.net> To: ip <ip@v2.listbox.com> - ------ Forwarded Message From: David Devereaux-Weber <dave@cable.doit.wisc.edu> Date: Mon, 27 Jan 2003 23:52:19 -0600 To: dave@farber.net Subject: Re: [IP] Internet Attack's Disruptions More Serious Than Many Thought Possible One interesting aspect of the reporting for this event is related to the acronym ATM. The University of Wisconsin-Madison uses Asynchronous Transfer Mode (ATM) for backbone transport. We further use LAN Emulation (LANE) on the Asynchronous Transfer Mode backbone (LANE maps IP addresses to ATM Virtual Circuits and back to IP at the far end). The LANE BUS (Broadcast and Unknown Server) on the network was swamped due to the high volume of SQLSlammer hits on broadcast and unknown addresses, effectively denying legitimate traffic. This BUS saturation did not happen with the Code Red worm several months back. We spent several hours thinking our ATM problems were distinct from the SQLSlammer problems. My question is, has anyone seen source information about the Bank of America and Automated Teller Machines? Is it possible that Bank of America was reporting Asynchronous Transfer Mode (ATM) problems and not Automated Teller Machine (ATM) problems? Dave - -- David Devereaux-Weber, P.E. Network Services Division of Information Technology The University of Wisconsin - Madison dave@cable.doit.wisc.edu http://cable.doit.wisc.edu - ------ End of Forwarded Message - ------------------------------------- You are subscribed as Jeff.Hodges@stanford.edu To unsubscribe or update your address, click http://v2.listbox.com/member/?listname=ip Archives at: http://www.interesting-people.org/archives/interesting-people/ ------- End of Forwarded Message