Loopback Detection Settings - D-Link DES-1228/ME User Manual

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 are received from a port it signifies a loop on the
network. The Switch will automatically block the port
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 this window click L2 Features > Loopback
Detection Settings.
Parameter Description
Loopdetect Status
Mode
DES-1228/ME Layer 2 Fast Ethernet Managed Switch
Use the drop-down menu to enable or disable loopback detection. The default is
Disabled.
Displays the mode Port Based for the Loopback detection global settings.
Figure 7- 36. Loopback Detection Settings window
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