ZyXEL Communications GS1920-48HPv2, Руководство пользователя

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Chapter 27 Loop Guard
GS1920v2 Series User’s Guide
260
27.2 Lo o p G ua rd Se tup
Click
Adva nc e d Applic a tio n
>
Lo o p G ua rd
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.
Fig ure 188
Advanced Application > Loop Guard
The following table describes the labels in this screen.
Table 113 Advanced Application > Loop Guard
LABEL DESC RIPTIO N
Active Select this option to enable loop guard on the Switch.
The Switch generates syslog, internal log messages as well as SNMP traps when it shuts down a
port via the loop guard feature.
Port This field displays the port number.
* Settings in this row apply to all ports.
Use this row only if you want to make some settings the same for all ports. Use this row first to set
the common settings and then make adjustments on a port-by-port basis.
Note: Changes in this row are copied to all the ports as soon as you make them.
Active Select this check box to enable the loop guard feature on this port. The Switch sends probe
packets from this port to check if the switch it is connected to is in loop state. If the switch that
this port is connected is in loop state the Switch will shut down this port.
Clear this check box to disable the loop guard feature.