
INTEGER 
unknown(0), ds1SF(1), ds1ESF(2), ds3M23(3), ds3Cbit(4), asyncE4(5), asyncDS3(6), asyncE3(7), bitSyncE3(8), byteSyncE3(9), asyncDS2(10), bitSyncDS2(11), byteSyncDS2(12), asyncE1(13), byteSyncE1(14), byteSync31DS0(15), asyncDS1(16), bitSyncDS1(17), byteSyncDS1(18), vcByteSyncDS2(19), vcAsyncE1(20), vcByteSyncE1(21), ds1SFAsync(22), ds1ESFAsync(23), ds3M23Async(24), ds3CbitAsync(25), vt(26), sts(27), pos16CRC(28), pos32CRC(29), posScrambling16CRC(30), posScrambling32CRC(31), atmMapping(32), ethernet(33), sdh(34), sonet(35), digitalWrapper(36), lambda(37), etsiPdh(38), ansiPdh(39), laps(40), fddi(41), dqdb(42), fiberch3(43), hdlc(44), etherV2di(45), ether8023(46), etherGfpSonet(56) 
