68 CHAPTER 9: ISOLATE-USER-VLAN CONFIGURATION
Isolate-user-VLAN
Configuration
Example
Network requirements
Switch A is connected to Switch B and Switch C in the downstream.
1 On Switch B
VLAN 5 is an isolate-user-VLAN, including an upstream port (Ethernet2/1/1 port)
and two Secondary VLANs, VLAN2 and VLAN3. VLAN 2 includes Ethernet2/1/2
port and VLAN 3 includes Ethernet2/1/3 port.
2 On Switch C
VLAN 6 is an isolate-user-VLAN including an upstream port (Ethernet2/1/1 port)
and two Secondary VLANs: VLAN3 and VLAN4. VLAN3 includes Ethernet2/1/3
port and VLAN4 includes Ethernet2/1/4 port.
Seen from the Switch A, either Switch B or Switch C carries one VLAN, VLAN 5
and VLAN 6 respectively.
Network diagram
Figure 13 Network diagram for isolate-user-VLAN
Configuration procedure
Only the configurations on the Switch B and Switch C are listed below.
1 Configuration on Switch B
# Configure an isolate-user-VLAN.
<SW8800>system-view
[SW8800] vlan 5
[3Com-vlan5] isolate-user-vlan enable
[3Com-vlan5] port ethernet2/1/1
# Configure Secondary VLANs.
[3Com-vlan5] vlan 3
[3Com-vlan3] port ethernet2/1/3
[3Com-vlan3] vlan 2
[3Com-vlan2] port ethernet2/1/2
Switch C
vlan 5
vlan 6
vlan 3
Switch A
E2/1/1
E2/1/3
E2/1/4
E2/1/1
Switch B
E2/1/3 E2/1/2
vlan 2 vlan 4
vlan 3
Switch C
vlan 5
vlan 6
vlan 3
Switch A
E2/1/1
E2/1/3
E2/1/1
Switch B
E2/1/3 E2/1/2
vlan 2 vlan 4
vlan 3
Switch C
vlan 5
vlan 6
vlan 3
Switch A
E2/1/1
E2/1/3
E2/1/4
E2/1/1
Switch B
E2/1/3 E2/1/2
vlan 2 vlan 4
vlan 3
Switch C
vlan 5
vlan 6
vlan 3
Switch A
E2/1/1
E2/1/3
E2/1/1
Switch B
E2/1/3 E2/1/2
vlan 2 vlan 4
vlan 3
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