====== L2 Loop Protection on MikroTik interface ======
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  * We can use MikroTik feature "Loop-Protect"
  * Loop protect feature can prevent Layer2 loops by sending loop protect protocol packets and shutting down interfaces in case they receive loop protect packets
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  * GOTO Terminal:: enabling LOOP Protection for Ethernet
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  * ## interface ethernet set loop-protect=on 2
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  * *** Three values "ON", "OFF" and "Default" ... default works as turned off 
  * *** [2 is the number of Ethernet :: use command:: 'interface print'  to see the number of interfaces]
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  * ** We can use it by VLAN interface also
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  * ## interface vlan set loop-protect=on 3
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  * loop-protect-send-interval (time interval; Default: 5m) 
  * Sets how often loop protect packets are sent on selected interface.
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  * loop-protect-disable-time (time interval | 0; Default: 5m) 
  * Sets how long selected interface is disabled when loop is detected. 0 - forever.
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