3com 2928 User Guide

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Port Isolation Group Configuration 
Overview 
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:  
z
 
3Com Switch 2900 series support only one isolation group that is created automatically by the 
system as isolation group 1. You can neither remove the isolation group nor create other isolation 
groups on such devices.  
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There is no restriction on the number of ports assigned to an isolation group. 
Usually, Layer 2 traffic cannot be forwarded between ports in different VLANs. However, the Layer 2 
data transmission between ports within and outside the isolation group is supported.  
Configuring a Port Isolation Group 
Select Security > Port Isolate Group from the navigation tree and in the page that appears, click the 
Modify
 tab to enter the page shown in 
Figure 1-1 
Configure a port isolation group 
 
 
 describes the port isolation group configuration items.