SNMP Administrative State Control

Node maintenance for the device is provided via an SNMP interface. The acBoardMIB provides two parameters for graceful and forced shutdowns of the device. These parameters are in the acBoardMIB as follows:

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acSysActionAdminState: Read-write MIB object. When a GET request is sent for this object, the agent returns the current device administrative state - determines the device's desired operational state:

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locked (0): Shutdown the device in the time frame set by acSysActionAdminStateLockTimeout.

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shuttingDown (1): (read-only) Graceful shutdown is being performed - existing calls are allowed to complete, but no new calls are allowed.

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unlocked (2): The device is in service.

On a SET request, the manager supplies the required administrative state, either locked(0) or unlocked(2). When the device changes to either shuttingDown or locked state, an adminStateChange alarm is sent. When the device changes to an unlocked state, the adminStateChange alarm is cleared.

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acSysActionAdminStateLockTimeout: Defines the time remaining (in seconds) for the shutdown to complete:

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0: immediate shutdown and calls are terminated (forced lock)

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1: waits until all calls are terminated (i.e., perform a Graceful shutdown)

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> 0: the number of seconds to wait before the graceful shutdown turns into a force lock