This attribute indicates the present operational status of the Vcc,
Vpc or Vpt component. Its value is dependent upon the current state
of the segLinkSideLoopbackState and endToEndLoopbackState
attributes.
The value is end2endUp when the endToEndLoopbackState is good
and the segLinkSideLoopbackState is either good or unknown.
The value is end2endDown when the endToEndLoopbackState is
bad and the segLinkSideLoopbackState is either good or unknown.
The value is localUpEnd2endUnknown when the
endToEndLoopbackState is unknown and the
segLinkSideLoopbackState is good.
The value is localDown when segLinkSideLoopbackState is bad.
The value is localUpEnd2endUnknown when the
endToEndLoopbackState is notApplicable and the
segLinkSideLoopbackState is good.
The value is unknown when the endToEndLoopbackState is either
unknown or notApplicable and the segLinkSideLoopbackState is
unknown.