3com S7906E Manuel De Montage

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Port Isolation Configuration 
When configuring port isolation, go to these sections for information you are interested in: 
Introduction to Port Isolation 
Usually, Layer 2 traffic isolation is achieved by assigning ports to different VLANs. To save VLAN 
resources, port isolation is introduced to isolate ports within a VLAN, allowing for great flexibility and 
security.  
Currently:  
S7900E series Ethernet switches support only one isolation group that is created automatically by 
the system as isolation group 1. These devices are referred to as single-isolation-group devices. 
You can neither remove the isolation group nor create other isolation groups on such devices.  
Layer 2 traffic can be exchanged between a port inside an isolation group and a port outside the 
isolation group, but not between ports inside the isolation group. 
There is no restriction on the number of ports assigned to an isolation group. 
 
Configuring the Isolation Group 
Assigning a Port to the Isolation Group 
Follow these steps to add a port to the isolation group: 
To do… 
Use the command… 
Remarks 
Enter system view 
system-view 
— 
Enter 
Ethernet 
port or 
OLT port  
view 
interface interface-type 
interface-number
 
Enter 
Layer-2 
aggregate 
interface 
view 
interface 
bridge-aggregation 
interface-number 
Enter port 
view or, 
port group 
view 
Enter port 
group view 
port-group manual 
port-group-name 
Required 
Use one of the commands. 
In Ethernet port or OLT port view, the 
subsequent configurations apply to 
the current port. 
In Layer-2 aggregate interface view, 
the subsequent configurations apply 
to the Layer-2 aggregate interface 
and all its member ports.  
In port group view, the subsequent 
configurations apply to all ports in the 
port group.