LDMS 8.8 Cleaning inventory (devices)

Hi Good Morning,

     Im having a hard time figuring out on what to do.

     I need to clean the inventory, that all inactive client that has not been connected in the network for more 2 months should be deleted in Landesk.

    How do i know if the unit is active within 2 months? does landesk have the capability to check if unit is active? or there is a time stamp that when a client connects to the network landesk will register that the unit is active?

Thanks,

Joe