ZyXEL Communications Plumbing Product metrogigabit switch User Manual

 Chapter 27 Loop Guard

MGS3700-12C User’s Guide

port N. The Switch will shut down port N if it detects that the probe packet has 
returned to the Switch. 

Figure 145   Loop Guard - Network Loop

Note: After resolving the loop problem on your network you can re-activate the 

disabled port via the web configurator (see 

commands (See the CLI Reference Guide).

Click Advanced Application > Loop Guard in the navigation panel to display the 
screen as shown. 

Note: The loop guard feature can not be enabled on the ports that have Spanning 

Tree Protocol (RSTP, MRSTP or MSTP) enabled.

Figure 146   Advanced Application > Loop Guard