Cisco Cisco Packet Data Gateway (PDG)

 

▄  VPC-VSM System Administration Guide, StarOS Release 19 

 

 

 

Provides recovery services to the NPU Controller.

 

npuctrl

 

NPU Controller  

Created at StarOS start-up. Only one NPU Controller operates in the system at any 
time.

 

Monitors the state of NPU Managers in the system.

 

Registers to receive notifications when NPU Manager crashes.

 

Controls recovery operation.

 

Provides a centralized location for CLI commands related to NPU Manager state.

 

npumgr

 

NPU Manager  

Created for every packet processing card that is installed and started.

 

Provides port configuration services to the CSP task.

 

Provides interface binding and forwarding services to the VPN Manager.

 

Provides flow insertion and removal services to Session Manager and AAA Manager 
tasks.

 

Provides recovery services to the NPU Controller.

 

npusim

 

NPU Simulator 
[ASR 5500] 

Created for every DPC installed and started. 

 

Provides port configuration services to the CSP task

 

Provides interface binding and forwarding services to the VPN Manager.

 

Provides flow insertion and removal services to Session Manager and AAA Manager 
tasks.

 

Provides recovery services to the NPU Controller.

 

 

 

 

 

 sessctrl

 

Session Controller

 

Created at StarOS start-up. Only one Session Controller instantiated in the system at 
any time.

 

Acts as the primary point of contact for the Session Subsystem. Since it is aware of the 
other subsystems running within the system, the Session Controller acts as a proxy for 
the other components, or tasks, that make up the subsystem.

 

Starts, configures, and coordinates the efforts of the Session Processing Subsystem sub-
managers.

 

Works with Resource Manager to start new Session Managers when all existing Session 
Managers exceed their capacity.