3Com Switch 4800G 24-Port - Traffic; Overview; Configuring Traffic Mirroring

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TRAFFIC MIRRORING CONFIGURATION
When configuring traffic mirroring, go to these sections for information that you
are interested in:
■ “Overview” on page 891
■ “Configuring Traffic Mirroring” on page 891
■ “Displaying and Maintaining Traffic Mirroring” on page 892
■ “Traffic Mirroring Configuration Examples” on page 892
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:
■ Mirroring to port: The desired traffic on a mirrored port is replicated and sent to
a destination port (that is, a mirroring port).
■ Mirroring to CPU: The desired traffic on a mirrored port is replicated and sent
to the CPU on the module of the port for further analysis.
■ 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.
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On the Switch 4800G, traffic can only be mirrored to ports and to CPU.
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:
To do… Use the command… Remarks
Enter system view system-view -
Enter traffic behavior view traffic behavior
behavior-name
Required
Configure traffic mirroring
action in the traffic behavior
mirror-to { cpu | interface
interface-type
interface-number }
Required