VLAN Configuration
11-18
11
Web – Click VLAN, 802.1Q VLAN, 802.1Q Tunnel Configuration or Tunnel Trunk
Configuration. Set the mode for a tunnel access port to 802.1Q Tunnel and a tunnel
uplink port to 802.1Q Tunnel Uplink. Click Apply.
Figure 11-2 Tunnel Port Configuration
CLI – This example sets port 2 to tunnel access mode, and sets port 3 to tunnel
uplink mode.
Configuring Private VLANs
Private VLANs provide port-based security and isolation between ports within the
assigned VLAN. Data traffic on downlink ports can only be forwarded to, and from,
uplink ports. (Note that private VLANs and normal VLANs can exist simultaneously
within the same switch.)
Console(config)#interface ethernet 1/2 27-1
Console(config-if)#switchport dot1q-tunnel mode access 34-15
Console(config-if)#interface ethernet 1/3
Console(config-if)#switchport dot1q-tunnel mode uplink
34-15
Console(config-if)#end
Console#show dot1q-tunnel
34-17
Current double-tagged status of the system is Enabled
The dot1q-tunnel mode of the set interface 1/1 is Normal mode, TPID is 0x9100.
The dot1q-tunnel mode of the set interface 1/2 is Access mode, TPID is 0x9100.
The dot1q-tunnel mode of the set interface 1/3 is Uplink mode, TPID is 0x9100.
The dot1q-tunnel mode of the set interface 1/4 is Normal mode, TPID is 0x9100.
The dot1q-tunnel mode of the set interface 1/5 is Normal mode, TPID is 0x9100.
The dot1q-tunnel mode of the set interface 1/6 is Normal mode, TPID is 0x9100.
The dot1q-tunnel mode of the set interface 1/7 is Normal mode, TPID is 0x9100.
.
.
.
Uplink Ports
Primary VLAN
(promiscuous ports)
x
Downlink Ports
Secondary VLAN
(private ports)
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