- fields_desc = [XBitField("flags", 0x0, 10), XBitField("length", 0x6, 6),
- XByteField("MDtype", 0x1), XByteField("nextproto", 0x3),
+ fields_desc = [XBitField("Version", 0x0, 2), XBitField("OAM", 0x0, 1),
+ XBitField("Unassigned", 0x0, 1), XBitField("TTL", 0x0, 6),
+ XBitField("length", 0x6, 6), XBitField("Unassigned", 0x0, 4),
+ XBitField("MDtype", 0x1, 4), XByteField("nextproto", 0x3),