Port number to which all frames to/from monitored ports are sent. Frames are only monitored if the sysConfigMonitor object is set to enabled(1). A number from 1 to 27 selects a switch port. The number 26 selects fast Ethernet port F1 (called port A on the modular switches), 27 selects fast Ethernet port F2 (port B on the modular switches). The number 31 selects no monitor port. The default value is 31.