APPENDIX B
StarOS Tasks
This appendix describes system and subsystem tasks running under StarOS on an ASR 5500 and virtualized
platforms.
This appendix is not a comprehensive list of all StarOS tasks. It simply provides general descriptions of
the primary tasks and subsystems within StarOS.
Important
It includes the following sections:
•
Overview, page 313
•
Primary Task Subsystems, page 314
•
Controllers and Managers, page 315
•
Subsystem Tasks, page 316
Overview
For redundancy, scalability and robust call processing, StarOS supports a series of tasks that perform specific
functions. These tasks communicate with each other as needed to share control and data signals. As a result,
processes can be distributed across multiple tasks thus reducing the overall work-load on any given task and
improving system performance. This distributed design provides fault containment that greatly minimizes the
impact to processes or sessions due to a failure.
The Exec mode show task command displays snapshots of running processes within StarOS. For detailed
information about this command, see the Command Line Interface Reference and Statistics and Counters
Reference.
The following sections describe the primary tasks that are implemented by StarOS:
•
Primary Task Subsystems, on page 314
•
Controllers and Managers, on page 315
ASR 5500 System Administration Guide, StarOS Release 21.5
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