RPi5-PTP-server/Dashboards/README.md

PTP Grafana dashboards

Import each JSON with Dashboards -> New -> Import and select your Prometheus datasource.

Included:

• ptp-grandmaster.json — MOMI / GNSS-PPS / Chrony / PTP
• ptp-linux-boundary.json — WOLF-HUNTER-style Linux boundary clock
• ptp-linux-client.json — selectable downstream Linux client
• ptp-nyater.json — NYATER Nexus boundary clock
• ptp-homelab-overview.json — whole timing-chain overview

The dashboards discover instances from:

• ptp_linux_node_info{role="grandmaster"}
• ptp_linux_node_info{role="boundary"}
• ptp_linux_node_info{role="client"}
• ptp_nexus_target_info

Notes:

• The GM dashboard does not treat ptp_gm_present=0 as a fault, because the local clock itself is the GM.
• The WOLF dashboard gives special attention to ptp_phc2sys_*, useful for your JBOD boundary-clock PHCs.
• The NYATER dashboard shows slave/passive port state and Delay_Req migration, which makes redundant-link failover visible.
• Packet-rate panels use Grafana's $__rate_interval.
• If PORT_PROPERTIES_NP is unavailable, Linux port counters may show PTP port identity instead of the friendly interface name.