Cisco Cisco Packet Data Interworking Function (PDIF)
StarOS Tasks
▀ Subsystem Tasks
▄ ASR 5000 System Administration Guide, StarOS Release 18
398
High Availability Subsystem
Table 46. High Availability Subsystem Tasks
Task
Description
Function
hatcpu
High Availability Task CPU
Performs device initialization and control functions based on the CPUs
hardware capabilities.
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)
(ASR 5x00 only)
Collects CPU monitoring information periodically and reports to the master
hatcpu sub-function.
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.
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)
(ASR 5x00 only)
hatsystem
High Availability Task System
Controller
Controller
Controls all the HAT sub-function tasks in the system. It is initiated on system
start-up.
start-up.
Initializes system components (such as the Gigabit Ethernet switches and
switch fabric).
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.
subsystem on the active management card.