In the device setting, there are three parameters for 1588v2 message rate setting:
Log Announce Interval: It is base 2 logarithm of the interval between Announce messages in seconds. Range is from -128 to +127. For example, -6 means the Announce messages rate is 64 packet/s;
Log Sync Interval: It is base 2 logarithm of the interval between Sync messages in seconds.Range is from -128 to +127. For example, -6 means the Sync message rate is 64 packet/s.
Log Minimum Delay Request Interval: Logarithm, base 2, of the minimum permitted mean time interval between successive Delay_Req messages.For multicast and unicast without negotiation, this value is translated into frames per second and used for the transmit rate.