Figure 1-3 Network diagram for local port mirroring configuration
Configure Switch C.
# Create a local port mirroring group.
[SwitchC] mirroring-group 1 local
# Add port GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 to the port mirroring group as source ports.
Add port GigabitEthernet 1/0/3 to the port mirroring group as the destination port.
[SwitchC] mirroring-group 1 mirroring-port GigabitEthernet 1/0/1 GigabitEthernet 1/0/2 both
[SwitchC] mirroring-group 1 monitor-port GigabitEthernet 1/0/3
# Display the configuration of all the port mirroring groups.
[SwitchC] display mirroring-group all
monitor port: GigabitEthernet1/0/3
After finishing the configuration, you can monitor all the packets received and sent by R&D department
and Marketing department on the Data monitoring device.
Remote Port Mirroring Configuration Example
The departments of a company connect to each other through Ethernet switches:
Department 1 is connected to GigabitEthernet 1/0/1 of Switch A.
Department 2 is connected to GigabitEthernet 1/0/2 of Switch A.
GigabitEthernet 1/0/3 of Switch A connects to GigabitEthernet 1/0/1 of Switch B.
GigabitEthernet 1/0/2 of Switch B connects to GigabitEthernet 1/0/1 of Switch C.
The data monitoring device is connected to GigabitEthernet 1/0/2 of Switch C.