Value of Match Rule.
SourceMAC(9): SIZE (12) HHHHHHHHHHHH for example: 010102020303 means
the match rule is 'if-match source-mac 0101-0202-0303'
DestinationMAC(10): SIZE (12) HHHHHHHHHHHH for example: 010102020303 means
the match rule is 'if-match destination-mac 0101-0202-0303'
Classifier(11): SIZE (1..31)
InboundInterface(12): SIZE (1..47)
typeOutboundInterface(25): SIZE (1..47)
other type: Set is not permitted. Zero-length String will be
returned when getting.