xStack
®
DGS-3600 Series Layer 3 Managed Gigabit Ethernet Switch
Loopback Detection Global 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 Global Settings, as shown below:
Figure 3- 48. Loopback Detection Global Settings window
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