Introduction


With Tachyon TNA metrics already flowing into Prometheus (see Monitoring Tachyon TNA Devices with Prometheus and Alertmanager via SNMP), the next step is making that data usable day-to-day. Prometheus' built-in query UI is sufficient for spot-checks and debugging, but it isn't built for at-a-glance monitoring, historical comparison, or sharing status with a wider team.

Grafana fills that gap. This guide covers installing Grafana, connecting it to an existing Prometheus instance, and building a dashboard that surfaces the metrics most relevant to TNA operation: wireless link quality (SNR, RX power), device temperature, and Ethernet port status — turning raw SNMP data into a single view suitable for daily monitoring or NOC use.


Configuration


  1. Install Grafana
  2. Add Prometheus as a Data Source
  3. Create the Dashboard
  4. Create a single dashboard — "Tachyon TNA — Device Overview"— containing the following panels. Keeping all metrics in one dashboard, rather than one per metric, keeps the time range and refresh in sync across the full device view.
    • Panel: Wireless Link SNR
      Metric: select tachyonWirelessPeerSnr
      Visualization: Time series. Legend: {{wirelessPeerName}} ({{wirelessPeerMac}}).

    • Panel: Wireless RX Power
      Metric: select tachyonWirelessPeerRxPower
      Visualization: Time series. Unit: Field → Standard options → Unit → Custom unit → dBm.
      Legend: {{wirelessPeerName}} ({{wirelessPeerMac}}).

    • Panel: Device Temperature
      Metric: select tachyonWirelessRadioTemperature
      Visualization: Time series. Unit: Celsius (°C). Add a threshold line at 60, matching the alerting rule from the Prometheus guide.
  5. Save.


Verification
Confirm the dashboard reflects live data before considering the setup complete.


Open the dashboard and confirm each panel renders data rather than showing "No data":

  • Wireless Link SNR and RX Power — one line per peer, matching the MAC addresses seen in Prometheus
  • Device Temperature — one line within the expected 0–60°C range.


Note: The panels shown above cover the metrics most relevant to day-to-day monitoring, but they are illustrative examples. The tachyon SNMP module exposes the full range of metrics supported by the device — Ethernet ports, wireless radios, VAPs, peers, and system health — any of which can be added to this dashboard using the same panel creation process.