Hi,
This is the bug page https://bst.cloudapps.cisco.com/bugsearch/bug/CSCva63324 but essentially the bug means that a CUCM upgrade fails if the installation has had more than one version of the UKNP installed prior to the upgrade, for example if a newer version of the NP had been applied.
The bug report makes no qualification, for example it does not seem to limit which versions of CUCM it affects, although I guess that it might only be 11.5 and later since the bug was first reported quite recently.
I currently have a stalled upgrade that failed due to this bug, and the documented work-around does not resolve it. This case is currently with TAC who've asked for a pile of logs but at this stage do not have solution.
Has anyone else either experienced this bug and found a solution, or have any background information regarding how to avoid hitting it? For example does it only affect upgrades to 11.5, or is it specific to certain versions of UKNP?
I have two additional 9.1 -> 11.5 upgrades that I need to plan for, and I would very much like these to both run without issue as downtime/change windows are not so easy with those customers.
So any background information would be of assistance.
If it avoids the bug I would be quite happy taking these three clusters up to 10.5 instead of 11.x, that would meet the immediate requirement which is the upcoming end of support for 9.1.
Thanks, Tony S
