Indicates what action to take when an address violation (an address mismatch or duplication) occurs on a secured port. The default action is to suspend(1) the port. suspend : port is suspended until the correct address is again received. While suspended, port will not forward frames it receives, nor will it accept frames to be forwarded. disable : port is disabled and will not forward any frames as in the case of suspension above. Port can only be reenabled by an explicit management action on the part of the user. ignore : do nothing to the port (simply discard the offending address).