Networking Tools

There are several service programs that can assist in visualizing or mapping an AREDN® network, as well as for viewing local RF conditions near your node. Some of these programs are discussed below.

Manage Extra Static Routes

There may be cases when you need to create extra static routes to control the flow of network traffic through your node. You can maintain your extra routes by entering them into the /etc/aredn_include/static_routes file. You must login to your node at the command line and use the vi editor to manage the routes in this file. A helpful example is provided in the file, and you can view the OpenWRT Static Routes page for additional information about managing static routes.

AREDN® Prometheus Exporter

Prometheus is an open-source monitoring and alerting toolkit which collects and stores metrics as time series data. At given intervals it can collect metrics from AREDN® nodes having the prometheus-exporter package installed. Prometheus evaluates rule expressions, displays the results, and can trigger alerts when specified conditions are detected.

AREDN® metrics in the prometheus-exporter package include the following:

  • Node details (name, model, firmware, description, Lat/Lon, grid square, band, channel, width, frequency, SSID)

  • Memory, storage, CPU, and networking metrics

  • RF metrics (signal, noise, MSC rate, TX/RX packets/rates)

  • LQM metrics

  • OLSR link info

In order for Prometheus to pull metrics from a node it will use the following target URL: http://<NODE>.local.mesh/cgi-bin/metrics and metrics are returned by the node as standard text/plain content. Minimal node resources are required to support Prometheus data collection since the node only uses minimal resources whenever this URL is queried.

Prometheus Exporter metrics in text format

The AREDN® prometheus-exporter simply makes these metrics available for Prometheus to pull. For additional information about Prometheus itself, visit their website here. The following image shows Prometheus metrics for an AREDN® node being displayed by the Grafana visualization application.

Prometheus Exporter metrics in Grafana

KN6PLV Mesh Map

Tim KN6PLV created these programs to discover and visualize your mesh network. They can be installed on one of your LAN-attached computers that is running a web server. This software is available for download here: KN6PLV NewMeshMap. Once you have followed the install instructions and have a working mapper, you will be able to view your mesh network in a web browser (as shown in the example below).

KN6PLV MeshMap Display

KN6PLV Network Waterfall Scanner

Tim KN6PLV created this program to assist with discovering the RF conditions around your node. It is installed as a node package which is available here: KN6PLV Waterfall. Once installed, a new Waterfall button will appear on your Node Status page if the hardware supports it (the Waterfall scanner is not currently available on AC devices). It will disconnect your node from the mesh while it continuously scans for nearby RF signals, so it does require authentication with the node’s login credentials in order to run. The Spectral View shows the strength of nearby signals, while the Waterfall maintains a record over time of the RF environment. This package does not work on node hardware having 802.11ac chipsets.

KN6PLV Waterfall Display

Link: AREDN® Webpage