Operation Manual – SNMP-RMONH3C S5600 Series Ethernet Switches Chapter 2 RMON Configuration2-1Chapter 2 RMON ConfigurationWhen configuring RMON, go to these sections for information you are interested in:z Introduction to RMONz RMON Configurationz Displaying RMONz RMON Configuration Example2.1 Introduction to RMONRemote Monitoring (RMON) is a kind of MIB defined by Internet Engineering TaskForce (IETF). It is an important enhancement made to MIB II standards. RMON ismainly used to monitor the data traffic across a network segment or even the entirenetwork, and is currently a commonly used network management standard.An RMON system comprises of two parts: the network management station (NMS) andthe agents running on network devices. RMON agents operate on network monitors ornetwork probes to collect and keep track of the statistics of the traffic across thenetwork segments to which their ports connect, such as the total number of the packetson a network segment in a specific period of time and the total number of packetssuccessfully sent to a specific host.z RMON is fully based on SNMP architecture. It is compatible with the currentSNMP implementations.z RMON enables SNMP to monitor remote network devices more effectively andactively, thus providing a satisfactory means of monitoring remote subnets.z With RMON implemented, the communication traffic between NMS and SNMPagents can be reduced, thus facilitating the management of large-scaleinternetworks.2.1.1 Working Mechanism of RMONRMON allows multiple monitors. It can collect data in the following two ways:z Using the dedicated RMON probes. When an RMON system operates in this way,the NMS directly obtains management information from the RMON probes andcontrols the network resources. In this case, all information in the RMON MIB canbe obtained.z Embedding RMON agents into network devices (such as routers, switches andhubs) directly to make the latter capable of RMON probe functions. When anRMON system operates in this way, the NMS collects network managementinformation by exchanging information with the SNMP agents using the basicSNMP commands. However, this way depends on device resources heavily and
