This object indicates the current operational link state
of the REP port. If a REP configured interface is down,
it will be in 'initDown' state.
'none' - REP is not operational on the interface. This
value is used when sending the crepLinkStatus
notification when REP configuration is removed
from the interface.
'initDown' - initial REP link state.
'noNeighbor' - state in which REP is yet to discover its
neighbor.
'oneWay' - the state in which messages have been received
from the neighbor but the link has not been
declared to be twoWay yet.
'twoWay' - the fully operational state for REP.
'flapping' - the state in which there is a mismatch in the
received port information (either local or
remote) for the neighbor.
'wait' - the forced transient state before REP starts
discovering its neighbor.
'unknown' - the link state cannot be determined.