1-4 
Task  Remarks 
Configuring Local Port Mirroring  Optional 
Configuring Remote Port Mirroring  Optional 
 
 
On a Switch 4200G, only one destination port for local port mirroring or one reflector port 
for remote port mirroring can be configured, and the two kinds of ports cannot both exist. 
 
1.1.2  Configuring Local Port Mirroring 
Configuration prerequisites 
z   The source port is determined and the direction in which the packets are to be mirrored 
is determined. 
z   The destination port is determined. 
Configuration procedure 
Table 1-2 Follow these steps to configure port mirroring: 
To do…  Use the command…  Remarks 
Enter system view 
system-view 
— 
Create a port mirroring 
group 
mirroring-group group-id 
local 
Required 
In system 
view 
mirroring-group group-id 
mirroring-port 
mirroring-port-list { both | 
inbound | outbound } 
interface interface-type 
interface-number 
mirroring-group group-id 
mirroring-port { both | 
inbound | outbound } 
Configure 
the source 
port for the 
port 
mirroring 
group 
In port 
view 
quit 
Use either approach 
You can configure multiple 
source ports at a time in 
system view, or you can 
configure the source port in 
specific port view. The 
configurations in the two 
views have the same effect.
In system 
view 
mirroring-group group-id 
monitor-port monitor-port-id
interface interface-type 
interface-number 
Configure 
the 
destination 
port for the 
port 
mirroring 
group 
In port 
view 
mirroring-group group-id 
monitor-port 
Use either approach 
The configurations in the two 
views have the same effect.