Port Mirroring Overview; Enabling Port Mirroring - Symbol ES3000 Manual

10-2 ES3000 Advanced Concept Guide

10.1 Port Mirroring Overview

Port mirroring allows one port on the ES3000 to see all of the packets passing through any other port
on the switch. Usually, a network analyzer is attached to the monitoring port so the network
administrator may debug problems with the monitored port.
The ES3000 has two gigabit Ethernet ports, ports 25 and 26. A 10/100BaseT port would not be able
to keep up with the packet flow on a gigabit port. Only another gigabit port may monitor a gigabit
port. Any port on the ES3000 may be used to monitor ports 1 through 24, the 10/100BaseT ports.

10.2 Enabling Port Mirroring

To enable port mirroring through the ES3000 web interface, open the Ports menu item in the lefthand
menu, then open the Basic Port Config. item under Ports. The Port Mirroring menu item will appear
under Basic Port Config.
Select the monitoring port and the monitored port from the drop down menu of ports. Make sure the
monitoring port is not otherwise in use and that it had enough speed to mirror the traffic on the target
port.