We have a global customer with clusters in North and South American, Europe and Asia connected via inter-cluster trunks, and all running CUCM/CUC 8.5. I'm looking for any documentation dealing with upgrading multi-cluster environments - compatibility concerns between them, any caveats/items to look out for, etc. The Install/Upgrade guides only deal with single clusters, at least that I've found.
There are no documentation for multicluster because there is no special requirements for them as Jamie has right mentioned. I have done multi cluster upgrade in the past and the key is to organize your resources to do the upgrade in different locations. Your considerations should be..
1. How do you want to do the upgrade: simultaneously/phased etc If its simultaneous then you will need to plan timing etc considering you will be working in different time zones
2. What are the depencies that needs to be upgraded first...UCCX?
3. You might save a lot of time installing the phone firmware on your destination version (8.6 or 9.0) on your existing cluster and then aloow your phones to upgrade their firmware through the night...This will save you a lot of time during your upgrade...
4. Finally have a solid test plan in place
Please rate all useful posts
"opportunity is a haughty goddess who waste no time with those who are unprepared"
The 2020 IT Blog Awards, hosted by Cisco, is now open for submissions through October 16. Submit your blog, vlog or podcast today. For more information, including category details, the process, past winners and FAQs, check out: https:...
We have CUCM and CUC (v12.5) which has been directly registered to Cisco's Smart Licensing, but today's I noticed this error from RTMT "Smart Licensing Authorization Renewal Failure". I tried to force the re-authroization and re-registration and now it sa...
Hello I have a Cisco 7841 3pcc Phone, if I specify a custom ringtone and try to play it, it is spit out in the log> Bad parameter in Ring File field: w = tftp: //192.168.220.120/TEST.rawand the standard sound plays.-----------4047 ERR Jan 17 16: 15: 33...