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<P><B><FONT FACE="Arial">Office of Information Technology Customer Update – January 3, 2006</FONT></B>
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<P><B><FONT FACE="Arial">Network Outage: January 3, 2006</FONT></B>
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<P><FONT FACE="Arial">Between approximately 11:00am and 12:45pm today, the ohio.gov core backbone experienced an ATM switch failure which resulted in loss of connectivity to OIT customers. The preliminary analysis indicates that the network outage experienced was the result of a memory failure on one of OIT's main ATM switches (ATMSOCA) which provides IP connectivity to the ohio.gov network. This failure left the switch inoperable. Immediate action was taken to resolve the memory issue. ATM routing anomalies continued until ATMSOCB (a second ATM switch) was restarted. The network impact was due to devices that are dependent on the ATM backbone for IP connectivity. Post mortem analysis of the ATM issue will be conducted.</FONT></P>
<P><FONT FACE="Arial">Please contact the Ohio Customer Service & Security Center at ocssc@ohio.gov or 614-644-0701 if you have any questions.</FONT>
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