Advanced Warning: Qwest/Lucent ATM upgrade

Routing may be weirder than normal this evening. Qwest is upgrading their Lucent ATM switches to fix a bug, and needs to shutdown their entire ATM backbone for a couple of hours. Qwest hasn't responded to my e-mails asking what is happening, but other ISPs have outlined alternative routes they will be using. Most will try to maintain service by additional peering, deaggregated routes, or temporary third-party transit. Other providers use Lucent ATM switches. I don't know if they will also need to upgrade their networks at some time in the future to fix the same problem.