OPC Unified Architecture – Part 22: Base Network Model
5.3.1.3 InterfaceOperStatus Enumeration
The InterfaceOperStatus is an enumeration for the possible operational states of the network interface (ifOperStatus is defined in IETF RFC 2863: The Interfaces Group MIB - ifOperStatus). The values of the InterfaceOperStatusEnumeration are defined in Table 22.
Table 22 – InterfaceOperStatus Values
Name
Value
Description
Up
0
Ready to pass packets.
Down
1
The interface does not pass any packets.
Testing
2
In some test mode. No operational packets can be passed.
Unknown
3
Status cannot be determined for some reason.
Dormant
4
Waiting for some external event.
NotPresent
5
Some component (typically hardware) is missing.
LowerLayerDown
6
Down due to state of lower-layer interface(s).
Its representation in the AddressSpace is defined in Table 23.
Table 23 – InterfaceOperStatus Definition
Attribute
Value
BrowseName
InterfaceOperStatus
IsAbstract
False
References
NodeClass
BrowseName
DataType
TypeDefinition
Other
Subtype of the Enumeration type defined in OPC 10000-5
