Apologies if this has been posted before, I couldn't find it. Can someone tell me what the maximum number of user accounts I can import from Microsoft AD into CCM 5.1.3 is? We want to use LDAP sync and authentication, but I am afraid that our number of user accounts (~14,000)is too much for the CUCM servers to handle.
i know of deployments that had something like 50K and were working fine, the main concern would only be the time it takes to sync between the CUCM and the AD.
if they deleted an user it could take up to 3-4 days for it to disappear from CUCM
they also had high performance servers to support this, not sure what servers you have
if this helps, please rate