DAS-3626 VDSL2 Switch 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 loop detecting packet has been looped back to the switch. When
the Switch detects that these packets are received from a port or a VLAN, it 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 this window, click
Switch Configuration > Loopback Detection Settings
as shown below:
Figure 37. Loopback Detection Settings menu
The following parameters can be configured:
Parameter Description
LBD State
Used to
Enable
or
Disable
loopback detection. The default is
Disabled.
Mode
Use the drop-down menu to toggle between
Port Based
and
VLAN Based
.
Interval (1-32767)
Set a Loopdetect Interval between
1
and
32767
seconds. The default is
10
seconds.
Trap Status
Select the trap status, choose
None, Loop Detected, Loop Cleared
or
Both
.
Recover Time
(0 or 60-1000000)
Time allowed (in seconds) for recovery when a Loopback is detected. The Loopdetect
Recover Time can be set at
0
seconds, or
60
to
1000000
seconds. Entering
0
will disable the
Loopdetect Recover Time. The default is
60
seconds.
From Port / To Port
Use the drop-down menu to select a beginning and ending port number.
State
Use the drop-down menu to toggle between
Enabled
and
Disabled.
Click
Apply
to implement changes made.
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Содержание DAS-3626
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