CUCM 12.5 Device Pack Installation

[mumbles202]

I'm working to upgrade a 12.5 SU1 w/ the latest device pack before upgrading to SU5 in a couple of weeks.  It's a 2 site cluster and in the past I've installed the DP on the publisher, then on the subscriber and then rebooted the cluster 1 node at a time.  Looking online I found this document:

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/compat/Devpacks_admin/CMDP_BK_CD82F19C_00_cisco-unified-communications-manager-device/Cisco_Unified_Communications_Manager_Device_Package_Installation_and_Administration.html

which seems to suggest the reboot isn't needed.  Just install the DP on both nodes and then go to step 8.  Is that correct?   And step 10 can be skipped if I want to use the new firmware loads that are specified in the DP?

[Roger Kallberg · Accepted solution]

The document outlines these steps that answer your first question.

Step 13	If you are running 11.5(1)SU4 or lower, 12.0(1) or 12.0(1)SU1, reboot the cluster.
Step 14	If you are running 11.5(1)SU5 or higher, or 12.0(1)SU2 or higher, reboot the Cisco CallManager service on the publisher node. However, if you are running the Cisco Call Manager service on the subscriber nodes only, you can skip this task.

For the second question, AFAIK the installation of the device package would change the device defaults.

[mumbles202]

Thanks for the feedback.  Is the process still the same (install DP on publisher and then install on subscribers) and then restart TFTP as outlined in step 8?  

[Roger Kallberg]

Yes