Operation Manual – Mirroring
H3C S3600 Series Ethernet Switches-Release 1510 Chapter 1
Mirroring Configuration
1-1
Chapter 1 Mirroring Configuration
1.1 Mirroring 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.
Destinati
PC
on port
Data detect device
Netw ork
Destinati
PC
on port
Data detect device
Netw ork
Figure 1-1 Mirroring
1.1.1 Traffic Mirroring
Traffic mirroring refers to the process of copying 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 source port and the destination port must be located on the same
switch. This feature makes it possible for the source port and the destination 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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