Rmon - Cisco 350 Series Administration Manual

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RMON

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Tech-Support Information
This page provides a detailed log of the device status. This is valuable when the technical
support are trying to help a user with a problem, since it gives the output of many show
commands (including debug command) in a single command.
To view technical support information useful for debugging purposes:
Click Status and Statistics > Diagnostics > Tech-Support Information.
Click Generate.
Information from a variety of show CLI commands is displayed.
Generation of output from this command may take some time. When the information is
generated, you can copy it from the text box in the screen by clicking on Select tech-support
data.
RMON (Remote Networking Monitoring) enables an SNMP agent in the device to proactively
monitor traffic statistics over a given period and send traps to an SNMP manager. The local
SNMP agent compares actual, real-time counters against predefined thresholds and generates
alarms, without the need for polling by a central SNMP management platform. This is an
effective mechanism for proactive management, provided that you have set the correct
thresholds relative to your network's base line.
RMON decreases the traffic between the manager and the device since the SNMP manager
does not have to poll the device frequently for information, and enables the manager to get
timely status reports, since the device reports events as they occur.
With this feature, you can perform the following actions:
• View the current statistics (from the time that the counter values cleared). You can also
collect the values of these counters over a period of time, and then view the table of
collected data, where each collected set is a single line of the History tab.
• Define interesting changes in counter values, such as "reached a certain number of late
collisions" (defines the alarm), and then specify what action to perform when this
event occurs (log, trap, or log and trap).
Cisco 350, 350X and 550X Series Managed Switches, Firmware Release 2.4, ver 0.4
Status and Statistics
RMON