3Com 2928 User Guide - Page 442

Table 1-1 Port isolation group configuration items Item Description Config type Specify the role of the port or ports in the isolation group. z Isolate port: Assign the port or ports to the isolation group as an isolated port or ports. z Uplink-port: Assign the port to the isolation group as the uplink port. Select port(s) The uplink port is not supported on 3Com Switch 2900.series Select the port(s) you want to assign to the isolation group. You can click ports on the chassis front panel for selection; if aggregation interfaces are configured, they will be listed under the chassis panel for selection. Port Isolation Group Configuration Example Network requirements z Campus network users Host A, Host B, and Host C are connected to GigabitEthernet 1/0/2, GigabitEthernet 1/0/3, and GigabitEthernet 1/0/4 of Switch. z Switch is connected to the Internet through GigabitEthernet 1/0/1. z GigabitEthernet 1/0/1, GigabitEthernet 1/0/2, GigabitEthernet 1/0/3, and GigabitEthernet 1/0/4 belong to the same VLAN. It is required that Host A, Host B, and Host C can access the Internet while being isolated from one another. Figure 1-2 Networking diagram for port isolation group configuration Internet GE1/0/2 GE1/0/1 Switch GE1/0/4 GE1/0/3 Host A Host B Host C Configuration procedure # Assign GigabitEthernet 1/0/2, GigabitEthernet 1/0/3, and GigabitEthernet 1/0/4 to an isolation group as isolated ports. 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 1-3. 1-2