The object state classes

The OSI-based object state class

IltOSIObjectState is an object state class that provides an OSI primary state, a set of secondary states to be taken from the OSI, Misc, and Performance state dictionaries, and an alarm state from the Alarm state dictionary.

An instance of IltOSIObjectState thus holds:

The object primary state as an instance of IltOSI.State
The object IltOSI.Controlsecondary states as a list of state values which can be instances of IltOSI.Procedural, IltOSI.Availability, IltOSI.Control, IltOSI.Standby, IltOSI.Repair, IltSAN.SecState, IltMisc.SecState, or IltPerformance.SecState.
The object alarms as an instance of IltAlarm.State.

The Bellcore-based object state class

IltBellcoreObjectState is an object state class that provides a Bellcore primary state, a set of secondary states to be taken from the Bellcore, Performance, and Misc state dictionaries, and an alarm state from the Alarm state dictionary.

An instance of IltBellcoreObjectState thus holds:

The object primary state as an instance of IltBellcore.State
The object secondary states as a list of state values that can be instances of IltBellcore.SecState, IltSAN.SecState, IltMisc.SecState, or IltPerformance.SecState
The alarms of the object as an instance of IltAlarm.State.

The SNMP-based object state class

IltSNMPObjectState is an object state class that provides an SNMP primary state, a set of secondary states to be taken from the SNMP, Performance and Misc state dictionaries, and a trap state from the Trap state dictionary.

An instance of IltSNMPObjectState thus holds:

The object primary state as an instance of IltSNMP.State
The object secondary states as a list of state values that can be instances of IltLimitedNumericState, IltSAN.SecState, IltMisc.SecState or IltPerformance.SecState.
The alarms of the object as an instance of IltTrap.State.

The SONET-based object state class

IltSONETObjectState and IltBiSONETObjectState are object state classes that provide one or two SONET primary states respectively, two sets of protection switch request indicators, a secondary state taken from the Performance state dictionary if needed and one alarm state. They are dedicated to links, typically links in SONET rings.

An instance of IltSONETObjectState thus holds:

The link primary state as an instance of IltSONET.State
The protection switch request indicators that have been set on one end of the link, as a list of instances of IltSONET.Protection
The protection switch request indicators that have been set on the other end of the link, as a second list of instances of IltSONET.Protection
The object secondary states as a list of state values that are instances of IltSAN.SecState or IltPerformance.SecState.
The link alarms as an instance of IltAlarm.State

An instance of IltBiSONETObjectState holds:

A second instance of IltSONET.State, to store the state of the link in the reverse direction.

On a link with a BiSONET object state, the inherited primary state is considered to be the state of the direct direction and is graphically represented by the inner part of the link base and the “to” arrow. The reverse state is represented by the outer part of the link base and the “from” arrow.

The Alarm-only object state class

IltAlarmObjectState is an object state class that provides only an alarm state from the Alarm state dictionary. It is intended for objects with no states.

An instance of IltAlarmObjectState thus holds only an instance of IltAlarm.State.

The Trap-only object state class

IltTrapObjectState is an object state class that provides only a trap state from the Trap state dictionary. It is intended for objects with no states.

An instance of IltTrapObjectState thus holds only an instance of IltTrap.State.