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NEC Express5800/320Fc Manual Page 127

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SNMP and MIBS
Simple Network Management Using Net-SNMP and ftlSNMP 8-25
Device Enumeration
See Ta bl e 7-1 for information on the enumeration of hardware components for ftServer
systems running a supported Linux
distribution together with Express Builder.
ftServer System Operation State Management
Figure 8-2 illustrates the operational states and state changes in an ftServer system.
Figure 8-2. Operational State Management on ftServer Systems
The device physical states can be Empty, or an online state such as Simplex or Duplex.
A device can be administratively Removed, which the system then treats as an Empty
state. However, a Removed device can be restarted by administrative command, while
an Empty device is restarted by physical removal (if actually present) and insertion of
the device into a system slot.
The assigned state Shot is an automatically determined or managed state based on a
failure threshold or MTBF. A Shot state can be transitioned to an operational state by
bringing the device up automatically, or transitioned to Broken through a defined
system administrative process. A Broken device requires intervention: an administrator
can choose to return the device to service or may physically remove the device.
Another state is Unknown. The system will try to bring up any device and resolve it to
a known state, initializing it and performing diagnostics, and if diagnostics are passed,
Online
Unknown
State
Simplex | Duplex
Initializing
Diagnostics
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