Enabling loop detection

You can enable loop detection globally or on a per-port basis. The global configuration applies to all ports in the specified VLANs. The per-port configuration applies to the individual port only when the port belongs to the specified VLANs. Per-port configurations take precedence over global configurations.

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.