[Linuxptp-users] PTPv2 via UDPv4 Issue

[JN 1. <jim...@gm...>]

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.