# /etc/linuxptp/ptp4l-boundary.conf

[global]

time_stamping           hardware

domainNumber            0
network_transport       UDPv4
delay_mechanism         E2E

# Needed when the two NICs have different PHCs.
boundary_clock_jbod     1

# If both interfaces somehow share the same PHC, remove:
# boundary_clock_jbod     1

# We want the RPi GM to beat this clock in BMCA.
priority1               200
priority2               128

summary_interval        1


# Upstream toward RPi5.
# This is allowed to become the PTP client according to BMCA.
[eno4]


# Never accept another master from this direction.
# Downstream link 1 to Nexus
[enp4s0]
serverOnly              1


# Downstream link 2 to Nexus
[enp5s0d1]
serverOnly              1