Appendix B - Power Supply MIB
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© 2011 Datacom Systems Inc
supply is unknown. This value is defined for architectural purposes and is unlikely to be
observed in deployed systems.
The value of the dcomPowerSupplyLastChange object provides a TimeStamp indication of
when a power supply entered its current state. The special value of zero(0) indicates a power
supply was already in its current state when the SNMP agent last re-initialized.
4.4.2 Event Notifications
This MIB module defines two event notifications for reporting state transitions associated with
power supplies. These notifications are discussed in the following sections.
4.4.2.1 dcomPowerSupplyEventUp
A dcomPowerSupplyEventUp event notification provides an indication that a power supply has
transitioned into the 'up' state.
The power supply involved in this event is identified by the dcomPowerSupplyIndex value
appended to the object name of the dcomPowerSupplyStatus variable binding.
4.4.2.2 dcomPowerSupplyEventDown
A dcomPowerSupplyEventUp event notification provides an indication that a power supply has
transitioned into the 'down' state.
The power supply involved in this event is identified by the dcomPowerSupplyIndex value
appended to the object name of the dcomPowerSupplyStatus variable binding.
4.5 Notes for Management Applications
- when the SNMP agent re-initializes, subsequent to receiving the coldStart event notification, a
management application will receive a dcomPowerSupplyEventDown event notification for any
power supply currently in the 'down' state.
- when a dcomPowerSupplyEventDown event notification is received, a management
application SHOULD determine why the power supply is not functioning. If it is determined that
the power supply has failed, then make arrangements to order and install an appropriate
Datacom replacement unit for the failed power supply. If it is determined that the power supply
is unplugged or otherwise disconnected from its electrical source, then make arrangements to re-
plug and reconnect the power supply.
- when a dcomPowerSupplyEventUp event notification is received, a management application
SHOULD determine which previously received dcomPowerSupplyEventDown event this
dcomPowerSupplyEventUp event notification resolves.
5. Definitions
DATACOM-POWER-SUPPLY-MIB DEFINITIONS ::= BEGIN
IMPORTS
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