Instance Specific Considerations

ptp4l

Default global parameters

  • tx_timestamp_timeout 20

  • summary_interval 6

  • clock_servo linreg

  • network_transport L2

  • time_stamping hardware

  • delay_mechanism E2E

  • boundary_clock_jbod 1

  • uds_address /var/run/ptp4l-<instance name>

  • uds_ro_address /var/run/ptp4l-<instance name>ro

Default interface parameters

NONE

Required user-supplied parameters

domainNumber <number>

Other requirements

An interface with a port must be assigned to the ptp4l instance in order for it to start.

phc2sys

Default global parameters

cmdline_opts '-a -r -R 2 -u 600'

Default interface parameters

NONE

Required user-supplied parameters

domainNumber <number>

This should match with the associated ptp4l instance.

uds_address <path>

This value needs to be the same as the uds_address for the ptp4l instance that phc2sys is tracking.

Other requirements

The cmdline_opts are defaulted to support interaction with ptp4l. If phc2sys is instead being used with ts2phc, this parameter will have to be updated. See Example PTP Instance Configurations for more information.

Note

The cmdline_opts parameter overrides all default command line flags for the service. This means that when setting cmdline_opts, the full list of desired flags should be set.

ts2phc

Default global parameters

  • ts2phc.pulsewidth 100000000

  • leapfile /usr/share/zoneinfo/leap-seconds.list

  • cmdline_opts '-s nmea'

Default interface parameters

ts2phc.extts_polarity rising

Required user-supplied parameters

This value is the path to the GNSS serial port that is connected, it will be named differently on each system.

ts2phc.nmea_serialport=/dev/ttyGNSS_BBDD_0

Other requirements

An interface with a port must be assigned to the ts2phc instance in order for time to be synced from GNSS to the phc.

clock

Default global parameters

There are no supported global parameters for clock type.

Default interface parameters

NONE

Required user-supplied parameters

NONE

Other requirements

The clock type instance is a special instance used for configuring the NIC control parameters of the Westport Channel or Logan Beach NIC clock interface parameters.

These parameters can be applied to the interface of a clock instance PTP parameters:

  • sma1 input/output

  • sma2 input/output

  • u.fl1 output

  • u.fl2 input

  • synce_rclka enabled

  • synce_rclkb enabled