7-2 
3)  Assign non-trunk ports to the isolate-user-VLAN and ensure that at least one port takes the 
isolate-user-VLAN as its default VLAN; 
4)  Assign non-trunk ports to each secondary VLAN and ensure that at least one port in a secondary 
VLAN takes the secondary VLAN as its default VLAN; 
5)  Associate the isolate-user-VLAN with the specified secondary VLANs. 
Follow these steps to configure an isolate-user-VLAN: 
To do...  Use the command  Remarks 
Enter system view  system-view  — 
Create a VLAN and enter VLAN 
view 
vlan vlan-id — 
Configure the VLAN as an 
isolate-user-VLAN 
isolate-user-vlan enable  Required 
Return to system view  quit  — 
Access port 
Refer to 
Assigning an Access Port to a 
VLAN
 
Assign ports to the 
isolate-user-VLAN 
and ensure that at 
least one port 
takes the 
isolate-user-VLAN 
as its default 
VLAN 
Hybrid port 
Refer to 
Assigning a Hybrid Port to a 
VLAN 
Use either approach.
Return to system view  quit  — 
Create secondary VLANs  vlan { vlan-id1 [ to vlan-id2 ] | all }  Required 
Quit to system view  quit  — 
Access port 
Refer to 
Assigning an Access Port to a 
VLAN
 
Assign ports to 
each secondary 
VLAN and 
ensure that at 
least one port in 
a secondary 
VLAN takes the 
secondary VLAN 
as its default 
VLAN 
Hybrid port 
Refer to 
Assigning a Hybrid Port to a 
VLAN 
Required to choose 
either 
Return to system view  quit  — 
Associate the isolate-user-VLAN 
with the specified secondary 
VLANs 
isolate-user-vlan isolate-user-vlan-id 
secondary secondary-vlan-id [ to 
secondary-vlan-id ] 
Required 
 
 
After associating an isolate-user-VLAN with the specified secondary VLANs, you cannot add/remove a 
access port to/from each involved VLAN or remove each involved VLAN. To do that, you must cancel 
the association first.