diff --git a/EXTERNAL_PLUGINS.md b/EXTERNAL_PLUGINS.md
index 605a2a332..edfa2b892 100644
--- a/EXTERNAL_PLUGINS.md
+++ b/EXTERNAL_PLUGINS.md
@@ -31,6 +31,7 @@ Pull requests welcome.
 - [fritzbox](https://github.com/hdecarne-github/fritzbox-telegraf-plugin) - Gather statistics from [FRITZ!Box](https://avm.de/produkte/fritzbox/) router and repeater
 - [linux-psi-telegraf-plugin](https://github.com/gridscale/linux-psi-telegraf-plugin) - Gather pressure stall information ([PSI](https://facebookmicrosites.github.io/psi/)) from the Linux Kernel
 - [huebridge](https://github.com/hdecarne-github/huebridge-telegraf-plugin) - Gather smart home statistics from [Hue Bridge](https://www.philips-hue.com/) devices
+- [nsdp](https://github.com/hdecarne-github/nsdp-telegraf-plugin) - Gather switch network statistics via [Netgear Switch Discovery Protocol](https://en.wikipedia.org/wiki/Netgear_Switch_Discovery_Protocol)
 
 ## Outputs