A parent CAC (Call Admission Control) Group is required if a tree network topology is present. Its purpose is to establish relationships with higher- and subordinate-level CAC Groups. A parent CAC Group is just like any other CAC Group, except that it is defined based on CAC Groups instead of IP addresses, subnets, or DNs (Directory Numbers).
The administrator can define up to four levels of CAC Groups and up to 300 child CAC Groups. A CAC Group can only be assigned to one parent CAC Group.
The figure below shows how the child CAC Groups and CAC Policies are provisioned to monitor the bandwidth at the first level, which is the level between the branches and the LAN that connects them.
Figure 1. CAC Groups and Policies for first level of tree network topology
The next figure illustrates how the parent CAC Group and CAC Policy are provisioned to monitor the bandwidth at the second level, which is the level between the LAN and the WAN.
Figure 2. CAC Groups and CAC Policies for second level of tree network topology
Parent topic: CAC (Call Admission Control)