D-Link xStack DGS-3420 Series - Config Loopdetect Ports

xStack® DGS-3420 Series Layer 2 Managed Stackable Gigabit Switch CLI Reference Guide
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Example
To set a recover time of 0 and an interval of 20 in VLAN-based mode:
DGS-3420-28SC:admin#config loopdetect recover_timer 0 interval 20 mode vlan-based
Command: config loopdetect recover_timer 0 interval 20 mode vlan-based
Success.
DGS-3420-28SC:admin#
52-2 config loopdetect ports
Description
This command is used to set up the loop-back detection function for the ports on the switch.
Format
config loopdetect ports [<portlist> | all] state [enable | disable]
Parameters
<portlist> - Specify a range of ports to be configured.
all - To set all ports in the system, use the all parameter.
state – Specify the status.
enable - Enable loop-detect for the ports specified in the port list.
disable - Disable loop-detect for the ports specified in the port list. The default is disabled.
Restrictions
Only Administrator, Operator and Power-User level users can issue this command.
Example
To set up loop-back detection:
DGS-3420-28SC:admin#config loopdetect ports 1-5 state enable
Command: config loopdetect ports 1-5 state enable
Success.
DGS-3420-28SC:admin#
52-3 config loopdetect vlan
Description
This command is used to configure the loopback detection function for the VLANs on vlan-based
mode.