3Com Switch 8800 Advanced Software V5 Configuration Guide

178 CHAPTER 17: PORT ISOLATION CONFIGURATION
two types of connectivity of Layer 2 data on ports within and outside the isolation
group, as shown in Figure 1-1:
Figure 51 Connectivity of layer 2 data between ports inside and outside an isolation
group on a device supporting uplink port
n
■ The arrows in the above figure indicate the transmission direction of layer 2
data.
■ Within the same VLAN, the ports outside the isolation group can access the
Layer 2 data of the ordinary ports inside the isolation group, but the ordinary
ports in the isolation group cannot access the Layer 2 data of the ones outside
the isolation group.
Configuring Isolation
Groups on a Device
Adding a Port to the
Isolation Group
Follow these steps to add a port to the isolation group
Isolated
Ports outside the isolation
group
Uplink ports in the same
isolation group
Ordinary ports in the same
isolation group
Ports outside the isolation
group
Ordinary ports in an
isolation group
Uplink ports in an isolation
group
Uplink ports in other
isolation groups
Uplink ports in an isolation
group
Ordinary ports in other
isolation groups
Ordinary ports in an
isolation group
Ordinary ports in other
isolation groups
Uplink ports in an isolation
group
To do... Use the command... Remarks
Enter system view system-view -
Create an isolation
group
port-isolate group
group-number
Required