06-11-2014 09:37 AM - edited 03-16-2019 11:05 PM
We are migrating one of our customers CUCM from 8.6 to 10.5 using PCD. Since customer wants move this to new UCS server and move to DC we have to change the hostname and IP address of the servers as well. We finished the migration over the weekend, since we did a network migration with PCD I didn't do the last step of shutting down the current 8.6 PUB and SUB servers so it did not pause for Bulk certificate changes. This coming weekend we are cutting them over to new CUCM and I'm little confused on the Bulk Certificate process, here is what I'm planning to do let me know if this is going to cause any issues
1. Migrate the Bulk Certificate Process using this procedure and change the TFTP Ip address on the DHCP and reset the phones from current CUCM and hoping it will register to the new CUCM. Is this the correct way to do it or am I missing something here please let me know.
For information on performing a CTL update, see the “Security basics” section in Cisco Unified Communications Manager Security Guide: http://www.cisco.com/en/US/products/sw/voicesw/ps556/prod_maintenance_guides_list.html
Bulk certificate management must be done manually on both source nodes and destination nodes. Both source nodes and destination nodes must be up and running at this point. Phones are registered with the source nodes.
Follow the steps in the sections below to manage certificates on destination and source nodes.
Procedure
04-14-2016 12:33 PM
The problem is that the security libraries in 8.x and 10.5.2+ are incompatible. This is why you cannot consolidate the certificates by using the older version. However, you can consolidate them through the new cluster but then you will not be able to import the BULK store back to the old version.
More details -> CSCuy43181
04-14-2016 04:50 PM
Hi Dilyan,
thanks. the bug have the same date that I opene the case. finally I used the paramenter of rollback pre-version 8 and I have not problems for migrate the phones from CUCM 8 cluster to CUCM 10.5.
09-26-2016 01:29 PM
Hi Balukr,
I will have to migrate the old cluster 8.6.2 to new 11.5. So, the old cucm will need to be up after migration, then I will migrate to a different ip address in the new cluster.
My doubt is about the Bulk Certificate mangement, in the step of Task to migration via PCD> the process will stop to bulk certificate and consolidate insite of old CUCM. After do that, I would like migrate the phones by step to new cluster, because there are a lot of sites in different timezones.
I will need to mantaining the both server up until I move all phones to new cluster?
Are there onother or different way to migrate the certificates to new cluster?
Best regards,
Daniel Sobrinho
09-28-2016 09:38 AM
Finish the CUCM migration then migrate the certificates later.
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