Cabletron Systems 2.2 manual Bridge Statistics, Performance Graphs

Bridging

Bridge Statistics

The following sections describe Statistics windows that are available for the bridge that is being monitored via SPECTRUM Element Manager, both at the device and port levels.

Performance Graphs

You use Bridge Performance Graphs to view a color-coded strip chart that shows you the trafÞc being bridged through all networks or an individual network supported by your device. You can conÞgure the display to show frames Þltered, forwarded, or transmitted across the device or its individual bridging interfaces, as well as the number of errors experienced at both levels. The graph has an X axis that indicates the 60-second interval over which charting occurs continuously, while its Y axis measures the number of packets or errors that are processed by the device or its bridging interfaces.

You can select the type of errors you wish to monitor by using the available menu buttons. When you click on the error type you wish to view, the name of that error will appear in the button, and the Performance Graph will refresh. The graph will now generate a strip chart based on the newly deÞned parameters.

At the device level, a Detail button on the window allows you to compare the packets forwarded, Þltered, or transmitted on all networks supported by the device, as well as errors on all networks.

For a selected bridged network, the Detail button allows you to view the number of packets forwarded to, or received from, each other network supported by the device.

To access the device-level Bridge Performance Graph window from the Bridge

Status window:

1.Click on Bridge to display the Bridge menu.

2.Click on Performance Graph. The Bridge Performance Graph window, Figure 2-2, will appear. (The individual port Bridge Performance Graph windows are similar, except that they display a graph applicable to the selected interface.)

To access the device-level Bridge Performance Graph window from the Chassis View window:

1.Click on the Board Index of the device of interest; the Board menu will appear.

2.Click on Performance Graph. The Bridge Performance Graph window, Figure 2-2, will appear.

Bridge Statistics 2-15