H3C S7500 Series Operation Manual page 726

Operation Manual – Mirroring
H3C S7500 Series Ethernet Switches
Table 1-1 Ports involved in the mirroring operation
Switch
Source switch
Intermediate
switch
Destination
switch
To implement remote port mirroring, you need to define a special VLAN, called
remote-probe VLAN, on all the three types of switches. In this VLAN, no normal data
but only mirrored packets are transmitted. All mirrored packets will be transferred to the
specified port of the destination switch from the source switch through this VLAN. Thus,
the destination switch can monitor the port packets sent from the remote ports of the
source switch. Remote-probe VLAN requires that:
You are recommended to configure all ports connecting the devices in
remote-probe VLAN as Trunk ports.
The default VLAN and management VLAN cannot be configured as remote-probe
VLAN.
Required configurations are performed to ensure Layer 2 connectivity between the
source and destination switches over the remote-probe VLAN.
Ports involved
Source port
Reflector port
Trunk port
Trunk port
Trunk port
Destination port
1-3
Chapter 1 Mirroring Configuration
Function
Port to be mirrored; copies user data
packets to the specified reflector port
through local port mirroring. There can be
more than one source port.
Receives user data packets that are
mirrored on a local port.
Sends mirrored packets to the intermediate
switch or the destination switch.
Sends mirrored packets to the destination
switch.
Two Trunk ports are necessary for the
intermediate switch to be connected to
devices that are connected to the source
switch and the destination switch.
Receives remote mirrored packets.
Monitors remote mirrored packets