The value of tmnxLudbPppAleEncapOffset specifies
the fixed packet offset.
The tmnxLudbPppAleEncapOffset is used to convey the
information about the Access Loop Encapsulation type
for this host.
If the value of the object tmnxLudbPppAleEncapOffsetMode is equal to
'none', the offset is ignored.
If the value of the object tmnxLudbPppAleEncapOffsetMode is equal to
'auto', the offset is used.