25 MIRRORING CONFIGURATION GUIDE

Local Port Mirroring

Configuration
In local port mirroring, packets of one or more source ports of a device are copied
to a destination port on the device for packet analysis and monitoring. In local port
mirroring, the source ports and the destination port are on the same device.
Network Diagram Figure67 Network diagram for local port mirroring
Networking and
Configuration
Requirements
The departments of a company connect to each other through the Switch 5500:
Research and Development (R&D) department is connected to Switch C
through Ethernet 1/0/1.
Marketing department is connected to Switch C through Ethernet 1/0/2.
Data monitoring device is connected to Switch C through Ethernet 1/0/3.
The administrator wants to monitor the packets received and sent by the R&D
department and the marketing department through the data monitoring device.
Use the local port mirroring function to meet the requirement. Perform the
following configurations on Switch C.
Configure Ethernet 1/0/1 and Ethernet 1/0/2 as mirroring source ports.
Configure Ethernet 1/0/3 as the mirroring destination port.
Applicable Products
Switch C
The R&D
department
Switch A
Switch B
Eth1/0/2
Eth1/0/1
Eth1/0/3
The Marketing
department
Data monitoring device
Product series Software version Hardware version
Switch 5500 Release V03.02.04 All versions
Switch 5500G Release V03.02.04 All versions