Anybus Defender HA with N-Tron N-Ring Configuration

23 Mar 2026

This guide provides guidance how to setup a redundant switch network using N-Tron 5000 series in combination with a redundant firewall setup using Anybus Defender. 

 

PRE-REQUISITES

2 x Anybus Defender 6xxx or higher with PRO licenses

3 x N-Tron 5000 Switch

 

 

VERSIONS USED IN THIS ARTICLE

Anybus Defender 2.5.2-RELEASE-2025111723 

N-Tron v1.3.5
 

Configuration on N-Tron switches

Navigate to Redundancy -> N-Ring -> Config

Set Ring Mode to “Manager”.

Set Port Set (ID) to the ports you want to use.

Connect the other switches to the selected ports.

Navigate to Redundancy -> N-Ring -> Status

Here you will see the Ring Health, the other switches as members and any breaks that has/will happen in the N-Ring.

Navigate to Redundancy -> N-Ring -> Port Sets

Here you can add new ports to be used in a N-Ring.

Press the big + and you will get a new row, write an ID and choose two ports to be used in the N-Ring.

 

Anybus Defender Configuration

Anybus Defender High Availability guide can be found here

Please make sure to connect LAN ports to 2 different switches in the N-Ring for resilient configuration.