I am noticing some weird thing. After some time of sync which is at 0.3 to 0.4 ms suddenly It goes to to 1.3 ms or 3.5 ms without no reason checked the log files and everything seems to be normal. Trying with Software and Hardware Timestamping. The SBC that is installed the ptp4l is an RPI and Beaglebone Black. It seems that not sending the correct packets that time when happening. Any help would be appreciated.
Here is my config. [global] # # Default Data Set # twoStepFlag 1 slaveOnly 0 socket_priority 0 priority1 64 priority2 64 domainNumber 127 utc_offset 37 clockClass 13 clockAccuracy 0x22 offsetScaledLogVariance 0xFFFF free_running 0 freq_est_interval 1 dscp_event 46 dscp_general 34 dataset_comparison ieee1588 G.8275.defaultDS.localPriority 128 maxStepsRemoved 255 # # Port Data Set # logAnnounceInterval 0 logSyncInterval -3 operLogSyncInterval 0 logMinDelayReqInterval -3 logMinPdelayReqInterval -3 operLogPdelayReqInterval -3 announceReceiptTimeout 3 syncReceiptTimeout 0 delayAsymmetry 0 fault_reset_interval 4 neighborPropDelayThresh 20000000 masterOnly 0 G.8275.portDS.localPriority 128 asCapable auto BMCA ptp inhibit_announce 0 inhibit_delay_req 0 ignore_source_id 0 # # Run time options # assume_two_step 0 logging_level 6 path_trace_enabled 0 follow_up_info 0 hybrid_e2e 0 inhibit_multicast_service 0 net_sync_monitor 0 tc_spanning_tree 0 tx_timestamp_timeout 30 unicast_listen 0 unicast_master_table 0 unicast_req_duration 3600 use_syslog 1 verbose 0 summary_interval 0 kernel_leap 1 check_fup_sync 1 # # Servo Options # pi_proportional_const 0.0 pi_integral_const 0.0 pi_proportional_scale 0.0 pi_proportional_exponent -0.3 pi_proportional_norm_max 0.7 pi_integral_scale 0.0 pi_integral_exponent 0.4 pi_integral_norm_max 0.3 step_threshold 0.0 first_step_threshold 0.00002 max_frequency 900000000 clock_servo pi sanity_freq_limit 200000000 ntpshm_segment 0 msg_interval_request 0 servo_num_offset_values 10 servo_offset_threshold 0 write_phase_mode 0 # # Transport options # transportSpecific 0x0 ptp_dst_mac 01:1B:19:00:00:00 p2p_dst_mac 01:80:C2:00:00:0E udp_ttl 1 udp6_scope 0x0E uds_address /var/run/ptp4l # # Default interface options # clock_type OC network_transport UDPv4 delay_mechanism E2E time_stamping hardware tsproc_mode raw_weight delay_filter moving_average delay_filter_length 10 egressLatency 0 ingressLatency 0 boundary_clock_jbod 0 # # Clock description # productDescription ;; revisionData ;; manufacturerIdentity 00:00:00 userDescription ; timeSource 0xA0 Regards.
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