The value of tApsMcNeighborAddr variable specifies the neighbor's
ip-address only on a Multi-Chassis APS where the working and protect
circuits are configured on different routers. The value of
tApsMcNeighborAddr set to 0.0.0.0, implies that this APS group
is configured as a Single-Chassis APS group.
The route to the neighbor must not traverse the MC-APS member
(working or protect) circuits. It is recommended that the address
configured here is on a shared network between the routers that own
the working and protect circuits. By default no neighbor address
is configured and both the working and protect circuits are to be
configured on the same router (i.e. Single-Chassis APS).