Enabling or Disabling Loop Protect

By default, Loop Protect is disabled on all ports. Use this command to enable (or, if desired, disable) the feature on one or more ports:

set spantree lp port-string {enable | disable} [sid sid]

If no SID is specified, SID 0 is assumed.

This command takes precedence over per port STP enable/disable state (portAdmin). Normally, portAdmin disabled would cause a port to go immediately to forwarding. If Loop Protect is enabled, that port should go to listening and remain there.

Note

The Loop Protect enable/disable settings for an MSTI port should match those for the CIST port.