An RMON agent is an intelligent software agent that continually monitors port statistics and system variables.
The agent transfers the information to a management workstation on request, or when a predefined threshold is crossed.
Information collected by RMON includes Ethernet port statistics and history and the software version and hardware revision of the device. RMON generates alarms when threshold levels are met and then logs those events to the log. RMON can also send traps to the destination address configured by the management workstation. You can also use RMON to trigger a system reboot.