Managing Physical Interfaces Port Isolation Configurations
User Guide    99
Step 3 port isolation { [fa-forward-list 
fa-forward-list
] [gi-forward-list 
gi-forward-list
] [te-
forward-list 
te-forward-list
] [ po-forward-list 
po-forward-list
 ] }
Add ports or LAGs to the forwarding port list of the isolated port. It is multi-optional.
fa-forward-list / gi-forward-list / te-forward-list
: Specify the forwarding Ethernet ports.
po-forward-list: 
Specify the forwarding LAGs.
Step 4 show port isolation interface { fastEthernet 
port 
| gigabitEthernet 
port
 | ten-
gigabitEthernet 
port
 | port-channel 
port-channel
 }
Verify the Port Isolation configuration of the specified port.
Step 5 end
Return to privileged EXEC mode.
Step 6 copy running-config startup-config
Save the settings in the configuration file.
The following example shows how to add ports 1/0/1-3 and LAG 4 to the forwarding list of 
port 1/0/5:
Switch#configure
Switch(config)#interface gigabitEthernet 1/0/5
Switch(config-if)#port isolation gi-forward-list 1/0/1-3 po-forward-list 4
Switch(config-if)#show port isolation interface gigabitEthernet 1/0/5
Port           LAG       Forward-List
----             ---          -----------------------
Gi1/0/5    N/A       Gi1/0/1-3,Po4
Switch(config-if)#end
Switch#copy running-config startup-config
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