JetStream  52-Port Gigabit Stackable L3 Managed Switch  CLI Guide 
 
Chapter 26  Port Mirror Commands 
Port Mirror refers to the process of forwarding copies of packets from one port to a monitoring 
port. Usually, the monitoring port is connected to data diagnose device, which is used to 
analyze the monitored packets for monitoring and troubleshooting the network. 
26.1  monitor session destination interface 
Description 
The  monitor session
 
destination
interface  command is used to configure 
the monitoring port. Each monitor session has only one monitoring port. To 
change  the monitoring port, please use the monitor session  destination
interface
 
command by changing the port value. To delete the corresponding 
monitor session configuration, please use no monitor session command.   
Syntax 
monitor session 
session_num
destination
interface  {  gigabitEthernet 
port |
 
ten-gigabitEthernet 
port 
}
   
no monitor session 
session_num
 
Parameter 
session_num
 —— The monitor session number. The valid value is from 1 to 4.   
port 
—— The Gigabit/Ten-Gigabit Ethernet port number. 
Command Mode 
Global Configuration Mode 
Example 
Create monitor session 1 and configure Gigabit Ethernet port 1/0/1 as the 
monitoring port: 
T3700G-52TQ(config)#monitor session 1  destination interface 
gigabitEthernet 1/0/1 
Delete the monitor session 1: 
T3700G-52TQ(config)#no monitor session 1   
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