The OSI state dictionary

The OSI state dictionary is based on the OSI SMF 10164-2 standard, which defines the primary state of a telecom object as a combination of three values, and also introduces a number of statuses.

OSI states

An OSI state is a triplet including the following states:

Operational, which can be one of the following:
- Disabled
- Enabled
Usage, which can be one of the following:
- Idle
- Active
- Busy
Administrative, which can be one of the following:
- Unlocked
- Shutting Down
- Locked

Valid OSI states

While the OSI state system definition above allows 18 combinations of states (2x3x3), only eight of them are meaningful and thus legal. These are:

Operational: Disabled; Usage: Idle; Administrative: Unlocked
Operational: Disabled; Usage: Idle; Administrative: Locked
Operational: Enabled; Usage: Idle; Administrative: Unlocked
Operational: Enabled; Usage: Idle; Administrative: Locked
Operational: Enabled; Usage: Active; Administrative: Unlocked
Operational: Enabled; Usage: Active; Administrative: Shutting down
Operational: Enabled; Usage: Busy; Administrative: Unlocked
Operational: Enabled; Usage: Busy; Administrative: Shutting down

OSI statuses

In addition to the states already mentioned, the OSI SMF standard includes a status property, which is used to complement the primary state. JViews TGO provides a comprehensive set of status values for which a graphical interpretation is available. This status set is divided into five groups:

Procedural is used to report whether the managed object has been properly or improperly initialized or is finally reporting.
Availability is used to determine the availability status of the managed object.
Control is used to determine if a managed object is reserved for test or subject to test.
Standby is used to identify a managed resource that does not provide a service, but which can immediately take over the role of a primary resource.
Repair is used to determine whether the managed resource is under repair.

The OSI states and statuses are individually described in the following reference tables:

For information on how to customize OSI states, refer to Customizing the OSI state system.

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States