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Configuration D-Link Web Smart Switch User Manual
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Figure 4.38 – L2 Functions > Loopback Detection
Loopback Detection: Click to enable or disable loopback detection. The default is Disabled.
Mode: Specifies Port-based or VLAN-based mode. If the port-based mode is selected, the loop happening
port will be shut down and affect all member VLANs. If the VLAN-based mode is selected, only the member
port in the loop happening VLAN will be shut down.
Interval (1-32767): Set a Loop detection Interval between 1 and 32767 seconds. The default is 10 seconds.
Recover Time (0 or 60-1000000): Time allowed (in seconds) for recovery when a Loopback is detected.
The Loop Detection Recover Time can be set at 0 seconds, or 60 to 1000000 seconds. Entering 0 will
disable the Loop Detection Recover Time. The default is 60 seconds.
From Port / To Port: A consecutive group of ports may be configured starting with the selected port.
State: Use the drop-down menu to toggle between Enabled and Disabled. Default is Disabled.
Enabled VLANs: This is used to configure the loopback detection function for the VLANs on VLAN-based
mode. Enter the list of VLAN used for this configuration. Tick the All VLANs check box to enable this option
on all the VLANs configured on the Switch.
Click Apply to implement the changes made. Click Refresh to refresh the Loopback Detection table.
This feature provides two distinct functions. The MAC Address Learning allows turning on or off the
function of learning MAC address automatically, if a port is not specified as an uplink port (for example,
connects to a DHCP Server or Gateway). By default, this feature is Disabled (off).
L2 Functions > MAC Address Table > Static MAC