A value that indicates the PATH types available
in the station.
The value is a sum. This value initially takes
the value zero, then for each type of PATH that
this node has available, 2 raised to a power is
added to the sum. The powers are according to the
following table:
Path Power
Primary 0
Secondary 1
Local 2
For example, a station having Primary and Local
PATHs available would have a value of 5 (2**0 +
2**2).