User guide

ExtremeWare EPICenter Software Installation and User Guide 11-1
11
Real-Time Statistics
This chapter describes how to use the Real-Time Statistics applet for:
• Viewing percentage utilization or total errors data for multiple ports in an Extreme
Networks switch, a switch slot, or a port group.
• Viewing historical utilization, total errors, or individual errors data for a specific port
on an Extreme Networks switch.
Overview of Real-Time Statistics
The Real-Time Statistics featureof the EPICenter software enablesyou toview a graphical
presentation of utilization and error statistics for Extreme Networks switches in real time.
The data is taken from Management Information Base (MIB) objects in the etherHistory
table of the Remote Monitoring (RMON) MIB. The Real-Time Statistics function is
supported only for Extreme Networks switches.
You must have RMON enabled on the switch in order to collect real-time statistics
for the switch.
You can view data for multiple ports on a device, device slot, or within a port group, and
optionally limit the display to the “top N” ports (where N is a numberyou can configure).
If you choose to view multiple ports, the display shows data for the most recent sampling
interval for the selected set of ports. The display is updated every sampling interval.