This object indicates the current state of this WDS
entity.
A value of 'active' indicates that this is an active
WDS entity that sends periodic WDS advertisement
messages for APs to pick those messages and identify
the WDS entity they can register with. An 'active'
WDS entity moves to the 'backup' state if it receives
advertisement message from a WDS entity configured
with a higher priority.
A value of 'backup' indicates that this WDS entity
is in standby mode. A 'backup' WDS entity moves to
the 'active' state when it receives advertisement
message from a WDS entity configured with a higher
priority.
The 'candidate' state is the initial state of a WDS
entity that participates in the election process.
A WDS candidate entity moves either to the 'active'
state if it doesn't receive an advertisement message
from a higher priority WDS entity within the listen
period or to the 'backup' state if it receives a
higher priority advertisement message within the
listen period.