H3C S7500 Series Operation Manual

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Contents

H3C S7500 Series Operation Manual Manual pdf 11 page image

Operation Manual – SNMP and RMONH3C S7500 Series Ethernet Switches Chapter 2 RMON Configuration2-1Chapter 2 RMON ConfigurationWhen configuring RMON, go to these sections for information you are interested in:z RMON Overviewz RMON Configurationz Displaying RMONz RMON Configuration Example2.1 RMON OverviewRemote monitoring (RMON) is a kind of Management Information Base (MIB) definedby Internet Engineering Task Force (IETF) and is a most important enhancement madeto MIB II standards. RMON is mainly used to monitor the data traffic across a networksegment or even the entire network, and is currently a commonly used networkmanagement 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 on 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 packets thatare sent to a specific host successfully.RMON is fully based on Simple Network Management Protocol (SNMP) architecture. Itis compatible with the current SNMP, so that you can implement RMON withoutmodifying SNMP. RMON enables SNMP to monitor remote network devices moreeffectively and actively, thus providing a satisfactory means of monitoring the operationof the subnet. With RMON, the communication traffic between NMS and agents isreduced, thus facilitating the management of large-scale internetworks.2.1.1 Working Mechanism of RMONRMON allows multiple monitors. It collects data in one of the following two ways:z Using the dedicated RMON probe. 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

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H3C S7500 Series Operation Manual

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