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DGS-3130 Series Layer 3 Stackable Managed Switch Web UI Reference Guide
147
To view the following window, click L2 Features > Loopback Detection, as shown below:
Figure 5-589 Loopback Detection Window
The fields that can be configured in Loopback Detection Global Settings are described below:
Parameter Description
Loopback Detection State Select to enable or disable loopback detection. The default is Disabled.
Mode Select the loopback detection mode. Options to choose from are Port-based
and VLAN-based.
Enabled VLAN ID List
Enter the VLAN ID for loop detection. This only takes effect when VLAN-based
is selected in the Mode drop-down list.
Interval Enter the interval in seconds that the device will use to transmit Configuration
Test Protocol (CTP) packets to detect a loopback event. The valid range is from
1 to 32767 seconds. The default setting is 10 seconds.
Trap State Select to enable or disable the loopback detection trap state.
Action Mode Select the action mode here. Option to choose from are:
• Shutdown - Specifies to shut down the port in the port-based mode or
block traffic on the specific VLAN in the VLAN-based mode when a loop
has been detected.
• None - Specifies not to shut down the port in the port-based mode or block
traffic on the specific VLAN in the VLAN-based mode when a loop has
been detected.
Address Type
Select the address type here. Options to choose from are Multicast and
Broadcast.
Click the Apply button to accept the changes made.
The fields that can be configured in Loopback Detection Port Settings are described below:
Parameter Description
Unit Select the Switch unit that will be used for this configuration here.
From Port - To Port Select the appropriate port range used for the configuration here.
State Select this option to enable or disable the state of the port.
Click the Apply button to accept the changes made.
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