Port mirroring implementation
The local port mirroring has the following characteristics:
•
The mirroring sources and the mirroring destination are on the same device.
The source device is directly connected to a data monitoring device.
•
The source device acts as the destination device to forward mirrored packets to the data monitoring
•
device.
A local mirroring group is a mirroring group that contains the mirroring sources and the mirroring
destination on the same device. The mirroring sources and the mirroring destination can be located on
different modules of the device.
As shown in
2/0/2 reside on the same device. Packets received on GigabitEthernet 2/0/1 are copied to
GigabitEthernet 2/0/2. GigabitEthernet 2/0/2 then forwards the packets to the data monitoring device
for analysis.
Figure 62 Local port mirroring implementation
Configuring local port mirroring
A local mirroring group takes effect only when the source ports and the monitor port are configured for
the local mirroring group.
Local port mirroring configuration task list
Tasks at a glance
1.
(Required.)
2.
(Required.)
3.
(Required.)
Figure
62, the source port GigabitEthernet 2/0/1 and the monitor port GigabitEthernet
Creating a local mirroring group
Configuring source ports for the local mirroring group
Configuring the monitor port for the local mirroring group
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