<br><font size=2 face="sans-serif">The following is from our ISP describing the AT&T ATM Outage:</font>
<br>
<br><font size=2 face="Courier New">ATM Network -<br>
AT&T had an ATM network-wide outage on Tuesday affecting some of our DS1 <br>
and DS3 ATM connections. The outage began at Tuesday at 1:30 p.m. <br>
affecting 17 switches. Switches were restored by 4:30 p.m. but outages <br>
continued into the evening due to switch restarts. AT&T attributed the <br>
outage to a cable cut resulting in excessive number of control messages <br>
from one of AT&T's network switches. The switches were unable handle the <br>
message volume and failed. AT&T turned down some of the links between <br>
switches to isolate the problem. Problems continued in Columbus on <br>
Wednesday due to an unknown issue with the Lucent switch. PVCs were up but <br>
are operating slowly. Another failure in Columbus on Friday morning <br>
affecting four of our DS3's was isolated to a link between Columbus and <br>
Cleveland. Service was restored by late morning. We are expecting a <br>
written summary of these issues from AT&T.</font>
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Spencer Wood, Network Administrator<br>
Ohio Department Of Transportation<br>
1320 Arthur E. Adams Drive<br>
Columbus, Ohio 43221</font><font size=3 face="Times New Roman"> </font>
<p><font size=2 face="Courier New">E-Mail: </font><a href=mailto:Spencer.Wood@dot.state.oh.us><font size=2 color=blue face="Courier New"><u>Spencer.Wood@dot.state.oh.us</u></font></a><font size=2 face="Courier New"><br>
Phone: 614.644.5422/Fax: 815.361.0714</font><font size=3 face="Times New Roman"> </font><font size=2 face="Courier New"><br>
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