D-Link DGS-3620-52P CLI Guide - Page 629
Loopback Detection, Commands
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xStack® DGS-3620 Series Layer 3 Managed Stackable Gigabit Switch CLI Reference Guide Chapter 54 Loopback Detection Commands config loopdetect {recover_timer [ | ] | interval | mode [port-based | vlan-based]}(1) config loopdetect ports [ | all] state [enable | disable] enable loopdetect disable loopdetect show loopdetect show loopdetect ports {} config loopdetect trap [none | loop_detected | loop_cleared | both] config loopdetect log state [enable | disable] 54-1 config loopdetect Description This command is used to set up the loop-back detection function (LBD) for the entire switch. Format config loopdetect {recover_timer [ | ] | interval | mode [port-based | vlan-based]}(1) Parameters recover_timer - The time interval (in seconds) used by the Auto-Recovery mechanism to decide how long to check if the loop status is gone. The default value is 60. - Zero is a special value which means to disable the auto-recovery mechanism, hence, the user needs to recover the disabled port back manually. - Enter a value between 60 and 1000000. interval - The time interval (in seconds) at which device transmits all the CTP (Configuration Test Protocol) packets to detect the loop-back event. The default setting is 10. - Specify the valid range between 1 and 32767. mode - Choose the loop-detection operation mode. port-based - In the port-based mode, the port will be shut-down (disabled) when detecting a loop. vlan-based - In VLAN-based mode, the port cannot forward packets of the VLAN that detects a loop. Restrictions Only Administrator, Operator and Power-User level users can issue this command. Example To set a recover time of 0 and an interval of 20 in VLAN-based mode: 624