D-Link DGS-3630 Series Reference Manual page 183

DGS-3630 Series Layer 3 Stackable Managed Switch Web UI Reference Guide
The fields that can be configured in Loopback Detection Global Settings are described below:
Parameter
Loopback Detection State
Mode
Enabled VLAN ID List
Interval
Trap State
Action Mode
Address Type
Click the Apply button to accept the changes made.
The fields that can be configured in Loopback Detection Port Settings are described below:
Parameter
Unit
From Port - To Port
State
Click the Apply button to accept the changes made.
Figure 5-62 Loopback Detection Window
Description
Select to enable or disable loopback detection. The default is Disabled.
Select the loopback detection mode. Options to choose from are Port-based and
VLAN-based.
Enter the VLAN ID for loop detection. This only takes effect when VLAN-based is
selected in the Mode drop-down list.
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.
Select to enable or disable the loopback detection trap state.
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.
Select the address type here. Options to choose from are Multicast and
Broadcast.
Description
Select the Switch unit that will be used for this configuration here.
Select the appropriate port range used for the configuration here.
Select this option to enable or disable the state of the port.
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