3Com 2848 SFP User Guide - Page 40

40 CONFIGURING THE SWITCH you need to attach a network analyzer to one port and use it to monitor the traffic of other ports in the stack. To set up traffic monitoring, you need to set an analyzer port (the port that is connected to the analyzer), and a monitor port (the port that is to be monitored). Once the pair is defined, and you enable traffic monitoring, the Switch takes all the traffic going in and out of the monitor port and copies it to the analyzer port. CAUTION: The analyzer port should have a higher bandwidth than the monitor port. Otherwise, the Switch may not be able to copy all traffic effectively during periods of high traffic. Figure 21 Traffic Monitoring Screen To set up traffic monitoring for a port: 1 Attach a network analyzer to a port. 2 Access the Web interface, and then click Port Mirroring on the menu. 3 Specify the monitor port and analyzer port from the list. ■ Monitor Port - This is the port that is to be monitored. ■ Analyzer Port - This is the port to which the analyzer is attached. 4 Click Apply. For information on how to interpret the output on the port analyzer, refer to its accompanying documentation. Running Cable Diagnostic The Switch provides cable diagnostic, which helps you detect and resolve issues with the attached cables. The Switch will run three types of cable diagnostic tests: ■ Basic Diag (Pair Quality and Pair Skew) ■ Pair Wiring ■ Link Information To run the tests on a port: 1 In Port, select a port number to diagnose. 2 Click Apply.