Raman Sud Director, Network Engineering and Operations CWIE Holding Company 2353 West University Drive Tempe AZ 85281 Fax: 480.682.3236 http://www.cavecreek.net/ PGP Key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xBB765DA2 NOTICE: This message is intended only for the use of the individual or entity to which it is addressed. If the reader of this message is not the intended recipient, or the employee or agent responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this message is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the sender of this E-Mail or by telephone. ________________________________ From: maint_advisory@level3.com [mailto:maint_advisory@level3.com] Sent: Friday, June 27, 2008 12:48 PM To: todd@bandcon.com; steve.cordova@level3.com; Networking; helpdesk@bandcon.com; Networking Subject: Level 3 Service Affecting Maintenance - GCR# 201002 - SCHEDULED MAINTENANCE ADVISEMENT, CWIE, LLC Importance: High Level 3 Communications - Network Change Control (NCC) ***Scheduled Maintenance Advisement*** Level 3 Service Affecting Maintenance - GCR# 201002 - Scheduled We have scheduled this Scheduled Network Maintenance Period for: CWIE, LLC GCR# 201002 Start Date & Time: Sunday, July 13, 2008 00:00 CT (7/13/2008 05:00 GMT) End Date & Time: Sunday, July 13, 2008 06:00 CT (7/13/2008 11:00 GMT) Reason for Maintenance: Level 3 adding traffic back to ipcolo-sw1.chi1 4/2 to metro-sw1-chcgilcp80w.chi1 1/2. During this process, there is a possible spanning tree loop issue that would effect traffic. If after this maintenance is completed and you have circuit problems, please phone 877-453-8353 opt. 2, opt. 2 and open a ticket, so that we can correct the problem. Location(s): Chicago IL, Services Impacted: Service Impacted Expected Impact Duration IP - Non-Redundant None N/A IP - Redundant None N/A Circuits Impacted: Circuit ID Service Type Order Number Impact BBBL01704 metro-sw1-chcgilco80 3/6 1000-LX/LH FYI: possible spanning tree loop Comments: Clarify Case#: 2638427 Contact Information: Business Hours: Monday-Friday 7AM-5PM CT Phone: 800-850-4095 opt 2 After Hours: Phone: 877-453-8353 Outside the US: Phone: 1-720-888-0229 E-mail: <mailto:maint_advisory@level3.com> maint_advisory@level3.com Special Notes Concerning Service Impact: Level 3 Communications will make every effort to minimize the impact, however, unforeseen circumstances could cause a larger impact. Thank You, The Maintenance Advisory Team