1-1 
1  Port Isolation Configuration 
Port Isolation Overview 
Through the port isolation feature, you can add the ports to be controlled into an isolation group to 
isolate the Layer 2 and Layer 3 data between each port in the isolation group. Thus, you can construct 
your network in a more flexible way and improve your network security.  
Currently, you can create only one isolation group on a Switch 4210. The number of Ethernet ports in an 
isolation group is not limited. 
 
 
An isolation group only isolates the member ports in it. 
 
Port Isolation Configuration 
You can perform the following operations to add an Ethernet ports to an isolation group, thus isolating 
Layer 2 and Layer 3 data among the ports in the isolation group. 
Table 1-1 Configure port isolation 
Operation  Command  Description 
Enter system view 
system-view 
— 
Enter Ethernet port view 
interface interface-type 
interface-number 
— 
Add the Ethernet port to the 
isolation group 
port isolate 
Required 
By default, an isolation group 
contains no port.