H3C Technologies H3C S6300 Series Switches - Manual (Page 179)

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Reflector port, egress port, and remote probe VLAN
Reflector ports, remote probe VLANs, and egress ports are used for Layer 2 remote port mirroring. The
remote probe VLAN specially transmits mirrored packets to the destination device. Both the reflector port
and egress port reside on a source device and send mirrored packets to the remote probe VLAN.
For more information about the reflector port, egress port, remote probe VLAN, and Layer 2 remote port
mirroring, see " Port mirroring classification and implementation ."
NOTE:
On port mirroring devices, all ports except source, destination, reflector, and egress ports are called
common ports.
Port mirroring classification and implementation
Port mirroring includes local port mirroring and remote port mirroring.
• Local port mirroring—The mirroring sources and the mirroring destination are on the same device.
• Remote port mirroring—The mirroring sources and the mirroring destination are on different
devices.
Local port mirroring
In local port mirroring, the following conditions exist:
• The source device is directly connected to the data monitoring device.
• The source device acts as the destination device to forward mirrored packets to the data monitoring
device. The mirroring source and mirroring destination are on the same device.
A local mirroring group is a mirroring group that contains the mirroring sources and the mirroring
destination on the same device.
Figure 56 Local port mirroring implementation
As shown in Figure 56 , the source port Ten-GigabitEthernet 1/0/1 and monitor port Ten-GigabitEthernet
1/0/2 reside on the same device. Packets received on Ten-GigabitEthernet 1/0/1 are copied to
Ten-GigabitEthernet 1/0/2. Ten-GigabitEthernet 1/0/2 then forwards the packets to the data
monitoring device for analysis.
Remote port mirroring
In remote port mirroring, the following conditions exist: