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node-red-ping's Introduction

node-red-ping

This flows measures every 5 sec the ping times of several hosts and shows it in the Node-RED UI dashboard (see screenshot dashboard)

Moreover these ping times are also stored in an influx database which can be visualized in a graphana dashboard.

Screenshot of the node-red dashboard

screenshot node-red dashboard

A screenshot example of a graphana dashboard

screenshot graphana dashboard

Github

janvda/node-red-ping

Prerequisites

  1. Requires an influx database with following specs:
  • server:port = influxdb:8086
  • database = ping
  • no username and password
  • it is adviced to set the retention policy less than 1 week

Notes

  1. macOS’s firewall can block the ICMP packets that ping uses, which will interfere with this test. Make sure you disable “Stealth Mode” in “System Preferences”->“Security & Privacy” -> “Firewall
  2. Currently my macbook doesn't get the same IP address from DHCP - so you might need to manually update the flow for this.

node-red-ping's People

Contributors

janvda avatar

Watchers

James Cloos avatar avatar

node-red-ping's Issues

Every 5 minutes big wifi ping times for tp_link1

Every 5 minutes (although there are a few exceptions) I see big ping response time for my macbook and pi3two that is connecting to my home intranet over wifi via the powerline adaptor tp_link1

tp_link1 is:

  • 300Mbps AV600 WiFi Powerline Extender
  • Model No. TL-WPA4220
  • Firmware Version: | 1.2.9 Build 160525 Rel.35241n
  • Hardware Version: | WPA4220 v1 081C7015

image

Observations for above chart

  1. We also see big ping response times for tp_link1 at the same times but not every 5 minutes.

image

Observations for above chart

  1. We see ping response times of almost 2 sec for a period of 5 sec with an almost exact interval of 5 minutes.

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