Loopback Detection Settings - D-Link DGS-3200-16 - Switch - Stackable User Manual

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Loopback Detection Settings

The Loopback Detection function is used to detect the loop created by a specific port. This feature is used to temporarily
shutdown a port on the Switch when a CTP (Configuration Testing Protocol) packet has been looped back to the Switch. When
the Switch detects CTP packets received from a port or a VLAN, this signifies a loop on the network. The Switch will
automatically block the port or the VLAN and send an alert to the administrator. The Loopback Detection port will restart (change
to discarding state) when the Loopback Detection Recover Time times out. The Loopback Detection function can be implemented
on a range of ports at a time. The user may enable or disable this function using the pull-down menu.
To view the following window, click L2 Features > Loopback Detection Settings:
The following parameters may be viewed or modified:
Parameter
LBD State
Mode
®
DGS-3200 Series Layer 2 Gigabit Ethernet Managed Switch
Figure 3 - 30. Loopback Detection Settings window (Port-based)
Figure 3 - 31. Loopback Detection Settings window (VLAN-based)
Description
Use the drop-down menu to enable or disable loopback detection. The default is Disabled.
Use the drop-down menu to toggle between Port Based and VLAN Based.
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