H3C S7500E Series Ethernet Switches Operation Manual

Operation Manual – QoS
H3C S7500E Series Ethernet Switches Chapter 6 Traffic Mirroring Configuration
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Chapter 6 Traffic Mirroring Configuration
When configuring traffic mirroring, go to these sections for information that you are
interested in:
z Overview
z Configuring Traffic Mirroring
z Displaying and Maintaining Traffic Mirroring
z Traffic Mirroring Configuration Examples
6.1 Overview
Traffic mirroring is to replicate the specified packets to the specified destination. It is
generally used for testing and troubleshooting the network. .
Depending on different types of mirroring destinations, there are three types of traffic
mirroring:
z Mirroring to port: The desired traffic on a mirrored port is replicated and sent to a
destination port (that is, a mirroring port).
z Mirroring to CPU: The desired traffic on a mirrored port is replicated and sent to
the CPU on the board of the port for further analysis.
z Mirroring to VLAN: The desired traffic on a mirrored port is replicated and sent to a
VLAN, where the traffic is broadcast and all the ports (if available) in the VLAN will
receive the traffic. If the destination VLAN does not exist, you can still configure
the function, and the function will automatically take effect after the VLAN is
created and a port is added to it.
 Note:
On S7500E series Ethernet switches, traffic can only be mirrored to ports and to CPU.
6.2 Configuring Traffic Mirroring
To configure traffic mirroring, you must enter the view of an existing traffic behavior.
Follow these steps to configure traffic mirroring to a port: