3Com 3824 Implementation Guide - Page 61
Benefits of RMON, RMON and the Switch, It allows you to manage your network in a more proactive
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Benefits of RMON 61 Benefits of RMON Using the RMON features of your Switch has three main advantages: ■ It improves your efficiency Using RMON allows you to remain at one workstation and collect information from widely dispersed LAN segments or VLANs. This means that the time taken to reach a problem site, set up equipment, and begin collecting information is largely eliminated. ■ It allows you to manage your network in a more proactive manner If configured correctly, RMON can deliver information before problems occur. This means that you can take action before they affect users. In addition, probes record the behavior of your network, so that you can analyze the causes of problems. ■ It reduces the load on the network and the management workstation Traditional network management involves a management workstation polling network devices at regular intervals to gather statistics and identify problems or trends. As network sizes and traffic levels grow, this approach places a strain on the management workstation and also generates large amounts of traffic. RMON, however, autonomously looks at the network on behalf of the management workstation without affecting the characteristics and performance of the network. RMON reports by exception, which means that it only informs the management workstation when the network has entered an abnormal state. RMON and the Switch The RMON support provided by your Switch 3812 and Switch 3824 is detailed in Table 8. Table 8 RMON support supplied by the Switch RMON group Statistics History Support supplied by the Switch A new or initialized Switch has one Statistics session per port. A new or initialized Switch has two History sessions per port. These sessions provide the data for the Web interface history displays: ■ 10min intervals, 6 historical samples stored ■ 1 hour intervals, 6 historical samples stored