General
Enable Port Mirror:
Check the box to enable the Port Mirror function. If unchecked, it will be
disabled.
Mode:
Select the mode for the port mirror function. Options include:
Ingress: When this mode is selected, only the incoming packets sent
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
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 3-21 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).
Tips:
If both the mirrored port and the mirroring port are the LAN ports, these two LAN ports should be in the
same Port VLAN. For example, if port 3 (the mirroring port) and port 4 (the mirrored port) are the LAN
ports, the Port Mirror function can take effect only when port 3 and port 4 are in the same Port VLAN.
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:
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