GS1900 Series User’s Guide
150
C
HA PTER
2 3
C o nfig ura tio n: Lo o p G ua rd
23.1 O ve rvie w
This section provides information for
Lo o p G ua rd
in
C o nfig ura tio n
.
This chapter shows you how to configure the Switch to guard against loops on the edge of your network.
23.2 Lo 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 The G lo b a l Sc re e n
Use this screen to configure the global Loop Guard. Click
C o nfig ura tio n
>
Lo o p G ua rd
>
G lo b a l
to open
this screen.
Fig ure 151
Configuration > Loop Guard > Global
The following table describes the labels in this screen.
Table 98 Configuration > Loop Guard > Global
LABEL
DESC RIPTIO N
Global
State
Select
Ena b le
to activate loop protection on this Switch.
Recovery Time
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).
Apply
Click
Apply
to save the changes.
Cancel
Click
C a nc e l
to discard the changes.
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