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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical AT&T ATM Outage This Week
The following is from our ISP describing the AT&T ATM Outage: ATM Network - AT&T had an ATM network-wide outage on Tuesday affecting some of our DS1 and DS3 ATM connections. The outage began at Tuesday at 1:30 p.m. affecting 17 switches. Switches were restored by 4:30 p.m. but outages continued into the evening due to switch restarts. AT&T attributed the outage to a cable cut resulting in excessive number of control messages from one of AT&T's network switches. The switches were unable handle the message volume and failed. AT&T turned down some of the links between switches to isolate the problem. Problems continued in Columbus on Wednesday due to an unknown issue with the Lucent switch. PVCs were up but are operating slowly. Another failure in Columbus on Friday morning affecting four of our DS3's was isolated to a link between Columbus and Cleveland. Service was restored by late morning. We are expecting a written summary of these issues from AT&T. **************************************************** Spencer Wood, Network Administrator Ohio Department Of Transportation 1320 Arthur E. Adams Drive Columbus, Ohio 43221 E-Mail: [email protected]
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