Benefits of RMON 57
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 3226 and Switch 3250 is
detailed in Table 4
.
Tab le 4 RMON support supplied by the Switch
RMON group Support supplied by the Switch
Statistics A new or initialized Switch has one Statistics session per port.
History A new or initialized Switch has two History sessions per port.
These sessions provide the data for the Web interface history
displays:
■ 10 min intervals, 6 historical samples stored
■ 1 hour intervals, 6 historical samples stored
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