configs for a boundary clock

BoundaryClock/ptp4l-boundary.conf

@@ -0,0 +1,38 @@
+# /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
+