RE: Problems with AT&T

"Truman, Michelle, SALES Write

If you are experiencing drops or slow traces, only through the core,
there is an issue with excessive de-prioritization of ICMP control
message with a particular router type (vendcor) in the core. End to end
data flow has not seemed to be affected but trace and ping core
latencies are looking very wierd. I've been asking customers to use
trace only for path detail and to use end to end ping for any
performance data

Problem happen for week and make troubleshoot difficult. Please call Avici
Support for download the new Software. Other Carrier have upgrade already.