Port Mirroring Classification And Implementation - HP 6125G Configuration Manual

Port mirroring classification and implementation

According to the locations of the mirroring source and the mirroring destination, port mirroring falls into
local port mirroring and remote port mirroring.
Local port mirroring
In local port mirroring, the mirroring source and the mirroring destination are on the same device. A
mirroring group that contains the mirroring source and the mirroring destination on the device is called
a "local mirroring group".
Figure 31 Local port mirroring implementation
As shown in
reside on the same device. Packets of GigabitEthernet 1/0/1 are copied to GigabitEthernet 1/0/2,
which then forwards the packets to the data monitoring device for analysis.
Remote port mirroring
In remote port mirroring, the mirroring source and the mirroring destination reside on different devices
and in different mirroring groups. The mirroring group that contains the mirroring source or the mirroring
destination is called a "remote source/destination group". The devices between the source devices and
destination device are intermediate devices.
Because the source and destination devices are on the same Layer 2 network, remote port mirroring is
also referred to Layer 2 remote port mirroring.
Figure 31, the source port GigabitEthernet 1/0/1 and monitor port GigabitEthernet 1/0/2
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