Hi,
PLM User guide says
License Rehost is required :
Licenses are fulfilled to a specific Cisco Prime License Manger. If you require licenses to be moved to a new Cisco Prime License Manager, they will be need to be rehosted.
A re-host may be required if:
• A hardware failure occurred and new hardware is required for Cisco Prime License Manager
• Multiple Cisco Prime License Managers are desired and a subset of fulfillment licenses need to be moved
to a new Cisco Prime License Manager
If the hostname or IP address of the product instance changes, you need to delete the product
instance from the Cisco Prime License Manager prior to changing the hostname/IP address. You
then re-add it to the Cisco Prime License Manager once you have completed the hostname/IP
address change.
http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/plm/10_0_1/userguide/CPLM_BK_U7066CD8_00_user-guide-rel-10-0-1.html
regds,
aman