Configuration: Loop Guard; C O Nfig Ura Tio N: L O O P G Ua Rd; Overview; Loop Guard - ZyXEL Communications GS1900 Series User Manual

C o nfig ura tio n: L o o p G ua rd

23.1 O ve rvie w
This section provides information for
This chapter shows you how to configure the Switch to guard against loops on the edge of your network.
23.2 L o o p G ua rd
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.
23.2.1 T he G lo b a l Sc re e n
Use this screen to configure the global Loop Guard. Click
this screen.
Fig ure 151
The following table describes the labels in this screen.
Table 98 Configuration > Loop Guard > Global
L ABEL
Global
State
Recovery Time
Apply
Cancel
Configuration > Loop Guard > Global
DESC RIPT IO N
Select to activate loop protection on this Switch.
Ena b le
Enter the period (in seconds) for which a port will be kept disabled in the event of a loop is
detected (and the port action shuts down the port).
Click to save the changes.
Apply
Click to discard the changes.
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L o o p G ua rd C o nfig ura tio n
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