Cabletron Systems 7C04-R, 7C03 manual Changing the Measurement of Data, Viewing Fddi Port Meters

FDDI Management

Changing the Measurement of Data

Measurement fields located at the bottom of the FDDI Port Chart window allow you to change how the incoming data is measured:

•Absolute ––displays the chart variable values recorded in the device MIB counters.

•Delta ––displays the difference in value for the selected data between the current poll interval and the last interval.

•Cumulative ––displays the total since the Cumulative button was selected.

•Clear ––resets Cumulative totals to zero; this option is not available in the Absolute or Delta modes.

To change the type of measurement, or to clear and restart Cumulative totals, click mouse button 1 on the appropriate shadowed button.

To exit the FDDI Port Chart window, click .

Viewing FDDI Port Meters

To view the FDDI Port Meters window, highlight one or more ports in the scroll

list and click . The FDDI Port Meters window, Figure 4-4, will appear. Each of the meters provided displays a single statistic in a format that lets you know at a glance if the counter is registering high, medium, or low values.

Figure 4-4. FDDI Port Meters Window

The FDDI Port Meters window graphically displays the following statistics:

LER Estimate

The LER (Link Error Rate) Estimate displays a cumulative long term average of the bit error rate, which represents the quality of the physical link. It is computed when the port is connected, and every 10 seconds thereafter. The value of the LER

Port Configuration 4-7