The value of the object tmnxMacMafMatchDstMACMask specifies
the destination MAC mask value for this policy MAC filter entry.
The mask is ANDed with the MAC to match tmnxMacMafMatchDstMAC.
A zero bit means ignore this bit, do not match. a one bit means
match this bit with tmnxMacMafMatchDstMAC.
Use the value 00-00-00-00-00-00 to disable this filter criteria.