ZyXEL Communications Plumbing Product metrogigabit switch User Manual

Chapter 6 Tutorials

MGS3700-12C User’s Guide

This tutorial shows you how to shut down a port when:

• there is a loop occurred

or

• too many ARP requests (over 100 packets per second) received on a port

You also want the Switch to wait for a period (10 minutes) before resuming the 
port automatically, after the problem(s) are gone. Loop guard and Errdiable 
features are helpful for this demand.

Note: Refer to 

 for more 

information about Loop Guard and Errdiable.

To configure the settings:

First, click Advanced Application > Loop Guard. Select the Active option in 
the first section to enable loop guard on the Switch. Then select the Active option 
of the first entry (port *) to enable loop guard for all ports. Click Apply.