public static void checkHeadTailMarkers(byte[] payload) {
check(payload, 0, 0XA);
check(payload, 1, 0XB);
check(payload, 2, 0XC);
int length = payload.length;
check(payload, length - 3, 0XC);
check(payload, length - 2, 0XB);
check(payload, length - 1, 0XA);
}