для Cisco Cisco Packet Data Gateway (PDG)

 

Many of the primary subsystems are composed of controller tasks called Controllers, and subordinated tasks called 
Managers. 

Controllers serve several purposes: 



 

Monitor the state of their Managers and allow communication between Managers within the same subsystem. 



 

Enable inter-subsystem communication since they can communicate with the controllers of other subsystems. 



 

Mask the distributed nature of the software from the user allowing for ease of management. 

Managers manage resources and mappings between resources. In addition, some managers are directly responsible for 
call processing. 

For information about the primary subsystems that are composed of critical, controller, and /or manager tasks, see