The clockAccuracy characterizes a clock for the purpose of the best master clock (BMC) algorithm. The value of this attribute shall be estimated by the clock to a precision consistent with the value of the selected enumeration. BC: Range: 0x0-0xFF 01 0x20 - indicates that the time is accurate to within 25 ns 02 0x21 - indicates that the time is accurate to within 100 ns 03 0x22 - indicates that the time is accurate to within 250 ns 04 0x23 - indicates that the time is accurate to within 1 us 05 0x24 - indicates that the time is accurate to within 2.5 us 06 0x25 - indicates that the time is accurate to within 10 us 07 0x26 - indicates that the time is accurate to within 25 us 08 0x27 - indicates that the time is accurate to within 100 us 09 0x28 - indicates that the time is accurate to within 250 us 10 0x29 - indicates that the time is accurate to within 1 ms 11 0x2A - indicates that the time is accurate to within 2.5 ms 12 0x2B - indicates that the time is accurate to within 10 ms 13 0x2C - indicates that the time is accurate to within 25 ms 14 0x2D - indicates that the time is accurate to within 100 ms 15 0x2E - indicates that the time is accurate to within 250 ms 16 0x2F - indicates that the time is accurate to within 1 s 17 0x30 - indicates that the time is accurate to within 10 s 18 0x31 - indicates that the time is accurate to >10 s 19 0x80-0xFD - indicates that for use by alternate PTP profiles Default: 0x20 T-BC: Options: 01 0xFE - indicates that the time accuracy is unknown 02 0x21 - indicates that the time is accurate to within 100 ns Default: 0xFE