H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 115)

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Port mirroring
NOTE:
•
There are two kinds of port mirroring: local port mirroring and remote port mirroring. Unless otherwise
specified, port mirroring described in this chapter all refers to local port mirroring.
• Support for the port mirroring feature depends on the device model. For more information, see "Feature
matrixes."
Introduction to port mirroring
Port mirroring is to copy the packets passing through one or multiple ports (called mirroring ports) to a
port (called the monitor port) on the local device. The monitor port is connected with a monitoring device.
By analyzing on the monitoring device the packets mirrored to the monitor port, you can monitor the
network and troubleshoot possible network problems.
Figure 70 A port mirroring implementation
Port mirroring is implemented through mirroring groups. The mirroring ports and the monitor port are in
the same mirroring group. With port mirroring enabled, the device copies packets passing through the
mirroring ports to the monitor port.