This object is applicable only for those types of redundancy
such as APS where switchovers can take place independently at
near and far ends of a pair of interconnecting links and does
not need to be instantiated for other redundancy types.
unidirectional(1)
Switchovers are allowed to take place independently at
protection equipment at the near and far ends of
interconnecting links.
bidirectional(2)
When a switchover happens at the near end protection
equipment there is some form of signalling which should
cause a corresponding switchover at the far end protection
equipment.
This object may not be modified if the associated
ceRedunGroupRowStatus object is equal to active(1).