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Emergency Data Center Maintenance - [11/30/2009]
Date: Monday, November 30, 2009 (11/30/2009)
Start time (PST): 00:30 AM (1:30 PM - PST)
End time (PST): 03:00 (4:00 PM - PST)
Duration: 2 hour 30 Mins
Server affected:

Servers (MSSQL 2000 and MSSQL 2005) and sites running MS SQL

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The following notification is to inform you of an EMERGENCY MAINTENANCE event on our DC IP Network. Due to the severity, the time frame between this notice and the maintenance window has been shortened.

Start Time: 12:30 PST (1:30 PM - PST)
End Time: 01:30 PST (4:00 PM - PST)

Summary:
Our DC identified a service impacting bug in the current IOS version running on router. A vendor (CISCO) recommended upgrade has been provided as a resolution and needs to be implemented immediately.

Original Issue Reference:
With the introduction of 4-byte ASNs (Autonomous System Numbers), a newly devised method of injecting a specifically crafted prefix into the global route table allows for the BGP process to be reset on older IOS code.

http://www.cisco.com/warp/public/707/cisco-sa-20090729-bgp.shtml

Customer Impact:
During this maintenance, customers will notice a complete loss of connectivity to their servers on the network (No Service - Web, Mail, Database, DNS etc). While the upgrade duration is scheduled for 2 hour 30 Mins, we only expect between 1 -2 Hour of downtime as the routers reload and fully converge.

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If you have any problems with your connection to your services after this maintenance window, or if you have any questions regarding the maintenance at any point, please open a ticket in the customer portal.

We appreciate your patience during this maintenance and welcome any feedback you may have.

Warm Regards

Allianz Hosting
Support Team