Brocade TurboIron 24X Series Configuration Guide - Manual (Page 451)

Brocade TurboIron 24X Series Configuration Guide 417
53-1003053-01
Dual-mode VLAN ports
In Figure 54 , tagged port 11 is a dual-mode port belonging to VLANs 10 and 20. The default VLAN
assigned to this dual-mode port is 10. This means that the port transmits tagged traffic on VLAN
20 (and all other VLANs to which the port belongs) and transmits untagged traffic on VLAN 10.
The dual-mode feature allows tagged traffic for VLAN 20 and untagged traffic for VLAN 10 to go
through port 11 at the same time. A dual-mode port transmits only untagged traffic on its default
VLAN (that is, either VLAN 1, or a user-specified VLAN ID), and only tagged traffic on all other
VLANs.
The following commands configure VLANs 10 and 20 in Figure 54 . Tagged port 11 is added to
VLANs 10 and 20, then designated a dual-mode port whose specified default VLAN is 10. In this
configuration, port 11 transmits only untagged traffic on VLAN 10 and only tagged traffic on VLAN
20.
TurboIron(config)#vlan 10 by port
TurboIron(config-vlan-10)#untagged e 10
TurboIron(config-vlan-10)#tagged e 11
TurboIron(config-vlan-10)#exit
TurboIron(config)#vlan 20 by port
TurboIron(config-vlan-20)#tagged e 9
TurboIron(config-vlan-20)#tagged e 11
TurboIron(config-vlan-20)#exit
TurboIron(config)#int e 11
TurboIron(config-if-e10000-11)#dual-mode 10
TurboIron(config-if-e10000-11)#exit
Syntax: [no] dual-mode [<vlan-id>]
Notes:
• If you do not specify a <vlan-id> in the dual mode command, the port default VLAN is set to 1.
The port transmits untagged traffic on the DEFAULT-VLAN.
• The dual-mode feature is disabled by default. Only tagged ports can be configured as
dual-mode ports.
• In trunk group, either all of the ports must be dual-mode, or none of them can be.
The show vlan command displays a separate row for dual-mode ports on each VLAN.
VLAN 10
Untagged
Traffic
VLAN 10
Untagged
Traffic
VLAN 20
Tagged
Traffic
VLAN 20
Tagged
Traffic
Dual-mode Port11
Default VLAN ID 10
Tagged, VLAN 20
Port10
Untagged, VLAN 10
Port9
Tagged, VLAN 20
Hub Switch