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VUMC IT to change out Juniper VUH-SRX (Guardian) Cluster

Posted by on Monday, December 5, 2016 in Outage.

On Saturday, Dec. 10, beginning at 5:00 a.m., VUMC IT will implement change C0074001; changing out the legacy Juniper VUH-SRX (Guardian) firewall.  This change will cause a five-minute service interruption between 6:30 a.m. and 6:35 a.m. to all applications and databases that reside within the Juniper environment while it is switched out.  During the service interruption, users may experience an inability to log-in to some systems. In some cases, data may require re-entry.

Affected groups must ensure that testers are available to verify reachability and functionality of the applications and services they support after the change is complete.  A testing conference call has been established for users to obtain progress updates and technical assistance.

Call information:

  • The testing bridge will begin at 5:30 a.m. and will last until 11:00 a.m.
  • Call (615) 343-6048 to join.
  • Request the “Juniper Firewall” conference bridge.
  • Testers are not required to join the testing conference bridge; however, VUMC IT strongly recommends that all application/device owners test reachability, application functionality, and any Juniper related router dependencies immediately after the change is complete.

If you have any questions or comments regarding this change, please contact Chris Marshall,