Operation Manual – Mirroring
Quidway S5600 Series Ethernet Switches-Release 1510 Chapter 1 Mirroring Configuration
Huawei Technologies Proprietary
1-1
Chapter 1 Mirroring Configuration
1.1 Overview
Mirroring refers to the process of copying packets that meet the specified rules to a
destination port. Generally, a destination port is connected to a data detect device,
which users can use to analyze the mirrored packets for monitoring and
troubleshooting the network.
Destination port
Data detect device
PC
Netw ork
Destination port
Data detect device
PC
Netw ork
Figure 1-1 Mirroring
1.1.1 Traffic Mirroring
Traffic mirroring maps traffic flows that match specific ACLs to the specified destination
port for packet analysis and monitoring. Before configuring traffic mirroring, you need to
define ACLs required for flow identification.
1.1.2 Port Mirroring
Port mirroring refers to the process of copying the packets received or sent by the
specified port to the destination port.
1.1.3 Remote Port Mirroring — RSPAN
Remote switched port analyzer (RSPAN) refers to remote port mirroring. It eliminates
the limitation that the mirrored port and the mirroring port must be located on the same
switch. This feature makes it possible for the mirrored port and the mirroring port to be
located across several devices in the network, and facilitates the network administrator
to manage remote switches.
The application of RSPAN is illustrated in the following figure:
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