Cisco Cisco Packet Data Gateway (PDG)

 

 

 

 

hatcpu

 

High Availability Task CPU

 

Performs device initialization and control functions based on the CPUs hardware 
capabilities.

 

Reports the loss of any task on its CPU to hatsystem sub-function.

 

Controls the LEDs on the packet processing cards.

 

Initializes and monitors the dedicated hardware on packet processing cards. (ASR 
5x00 only)

 

Collects CPU monitoring information periodically and reports to the master hatcpu 
sub-function.

 

Reports the loss of any task on its CPU to the master hatcpu sub-function.

 

Performs device initialization and control functions because of the CPU’s 
hardware capabilities.

 

Reports the loss of any task on its CPU to hatsystem sub-function.

 

Controls the LEDs on the management card. (ASR 5x00 only)

 

Initializes and monitors the dedicated hardware on the management card. (ASR 
5x00 only)

 

hatsystem

 

High Availability Task System 
Controller

 

Controls all the HAT sub-function tasks in the system. It is initiated on system 
start-up.

 

Initializes system components (such as the Gigabit Ethernet switches and switch 
fabric).

 

Monitors system components such as fans for state changes.

 

Triggers actions for redundancy in the event of fault detection.

 

The HAT subsystem on the redundant management card mirrors the HAT 
subsystem on the active management card.

 

 

 

 

 

rmctrl

 

Resource Manager 
Controller 

 

Started by the sitparent task on StarOS startup, and monitored by HAT for a failure.

 

Initializes resources such as CPUs and memory.

 

Requests updated card status from the CSP subsystem and updates the system card table.

 

Communicates with all rmctrls to request their most recent set of resource data.

 

 

Resource Manager 

Started by the sitparent task, and monitored by HATs for failures.