ZyXEL Communications GS1900 Configuration: Loop Guard, 22.1 Overview, 22.2 Loop Guard, Loop Guard, Configuration, Configuration > Loop Guard

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Configuration: Loop Guard

22.1 Overview

This section provides information for Loop Guard in Configuration.

This chapter shows you how to configure the Switch to guard against loops on the edge of your network.

22.2 Loop Guard

Loop guard allows you to configure the Switch to shut down a port if it detects that packets sent out on that port loop back to the Switch. While you can use Spanning Tree Protocol (STP) to prevent loops in the core of your network. STP cannot prevent loops that occur on the edge of your network.

22.2.1 The Global Screen

Use this screen to configure the global Loop Guard. Click Configuration > Loop Guard to open this screen.

Figure 112 Configuration > Loop Guard

The following table describes the labels in this screen.

Table 94 Configuration > Loop Guard

LABEL	DESCRIPTION
Global
State	Select Enable to activate loop protection on this switch.

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GS1900 Series User’s Guide