Enabling loop detection

The loop protection action on a port can be triggered even if loop detection is disabled on the port when the following requirements are met:

• Loop detection is enabled globally or on any other port on the device.

• The port receives a loop detection frame of any VLAN.

As a best practice, do not enable loop detection on TRILL ports, because TRILL networks prevent loops from being generated. For information more about TRILL, see TRILL Configuration Guide.