Chapter 8: Status Monitoring And Statistics; Status Monitoring; Viewing Port Statistics - Extreme Networks ExtremeWare XOS Guide Manual

8 Status Monitoring and Statistics
This chapter describes the following topics:
Status Monitoring on page 181
●
Viewing Port Statistics on page 181
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Viewing Port Errors on page 182
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Using the Port Monitoring Display Keys on page 183
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Diagnostics on page 184
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System Health Checking-Modular Switches Only on page 189
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Setting the System Recovery Level on page 193
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Viewing the System Temperature on page 195
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Event Management System/Logging on page 197
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Using sFlow on page 209
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RMON on page 213
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Viewing statistics on a regular basis allows you to see how well your network is performing. If you
keep simple daily records, you can see trends emerging and notice problems arising before they cause
major network faults. In this way, statistics can help you get the best out of your network.

Status Monitoring

The status monitoring facility provides information about the switch. This information may be useful
for your technical support representative if you have a problem. ExtremeWare XOS includes many
command line interface (CLI)
and facilities.
NOTE
For more information about show commands for a specific ExtremeWare XOS feature, see the appropriate chapter in
this guide.

Viewing Port Statistics

ExtremeWare XOS provides a facility for viewing port statistical information. The summary information
lists values for the current counter for each port on each operational module in the system. Beginning
with ExtremeWare XOS 11.3, the switch automatically refreshes the display (this is the default behavior).
You can also display a snapshot of the real-time port statistics at the time you issue the command and
view the output in a page-by-page mode (this was the default behavior in ExtremeWare XOS 11.2 and
earlier). This setting is not saved; therefore, you must specify the
want a snapshot of the port statistics.
ExtremeWare XOS 11.3 Concepts Guide
commands that display information about different switch functions
show
parameter each time you
no-refresh
181