we use currently LMS3.2 for ~4500 network devices. To get data for our IP-Phones into usertracking database we think about a connection to our Callmanager Cluster (version 184.108.40.20600-2) that manages ~30.000 IP-Phones.
But we are a little worried about the additional load for the callmanager.
So I have 2 questions:
What impact will it have for our CCM, when LMS polls the CCM system via snmp to get the phone numbers? In our UserTracking table are ~140000 clients, 30000 of them are cisco ip-phones. A major usertracking aquisition needs currently ~3,5 hours and starts twice a day. The CCMs (publisher) CPU-Load is usually ~ 50%, maximum 65%.
Asks LMS the CCM for all clients that is finds or only for clients that look like an cisco IP-Phones (based on mac-adresses ...) ?
LMS will walk the ccmPhoneTable and ccmPhoneExtnTable from the CISCO-CCM-MIB. You can test walks of these tables to see what additional load this puts on the cluster. I don't anticipate it will be overly burdensome.