User's Manual

Mode:
Select the mode for the port mirror function. Options include:
 Ingress: When this mode is selected, only the incoming packets
received by the mirrored port will be copied to the mirroring port.
 Egress: When this mode is selected, only the outgoing packets
sent by the mirrored port will be copied to the mirroring port.
 Ingress & Egress:
When this mode is selected, both the
incoming and outgoing packets through the mirrored port will be
copied to the mirroring port.
 Port Mirror
Mirroring Port:
Select the Mirroring Port to which the traffic is copied. Only one port
can be selected as the mirroring port.
Mirrored Port:
Select the Mirrored Port from which the traffic is mirrored. One or
multiple ports can be selected as the mirrored ports.
The entry in Figure 3-20 indicates: The outgoing packets sent by port 1, port 2, port 3 and port 5
(mirrored ports) will be copied to port 4 (mirroring port).
Application Example
To monitor all the traffic and analyze the network abnormity for an enterprise’s network, please set the
Port Mirror function as below:
1) Check the box before Enable Port Mirror to enable the Port Mirror function and select the
Ingress & Egress mode.
2) Select Port 3 to be the Mirroring Port to monitor all the packets of the other ports.
3) Select all the other ports to be the Mirrored Ports.
4) Click the <Save> button to apply.
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