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ITS Alert - Resolved: Enterprise Network Modification

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Resolved: Enterprise Network Modification

Last updated on August 14, 2017 at 7:00AM

Update on August 14, 2017 at 6:59AM

All work was complete by 5:30AM.

Update on August 9, 2017 at 6:59AM

All testing for this change has been completed. Service are back in their normal operating state.

Update on August 8, 2017 at 6:48AM

All network changes are reverted as of 6:40AM. Staff are continuing to monitoring services to ensure they are performing as expected.

Update on August 7, 2017 at 2:04PM

REMINDER: Testing for this change will be conducted during the maintenance window tomorrow (Tuesday) and Wednesday. All work will be completed within the maintenance window but services may be impacted during the test.

Original Alert

Enterprise IT Systems Engineering, in cooperation with Data Centers Services and Enterprise Networking and Communication Services, will be reconfiguring several enterprise networks in order to place them behind Data Center firewalls. The first tests of the new configuration will be on August 8 and 9 during the maintenance window from 5:00 to 7:00 a.m. and are not planned to extend beyond 6:30 a.m. on either day. Assuming the tests are successful and approved, the production change would be implemented in mid-August (8/14) prior to student arrival.

The complexity and potential impact of these changes are significant; simulation and testing should prevent major disruptions, however, some service interruption is expected. In order to mitigate this, teams from Systems Engineering and Data Center Services will be working with on-site engineering support from the firewall vendor to quickly resolve issues as they are identified during and after the change. Critical services and systems that could be impacted include: WebAccess, Shibboleth, UCS, WebMail/email, TSM, PASS NFS, Wireless, and LDAP.

Services that maintain persistent connections may experience session timeouts and/or stale connections. PASS mounted via NFS and the TSM scheduler are both known to experience this issue. TSM users should upgrade to the latest client, if possible.

We appreciate your patience and assistance as we work to improve security and reliability of services in Enterprise IT. This change is being tracked via CHG0043208.

For more information, please contact IT Service Desk (ITServiceDesk@psu.edu).


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