Brocade Multi-Service IronWare Switching Configuration Guide (Supporting R05.6.00) - Manual (Page 202)

172 Multi-Service IronWare Switching Configuration Guide
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Configuring port-based VLANs
7
Ports are removed from the default VLAN only when the port is added as an untagged member
of a different VLAN. The untag command also allows the ports to process packets that do not
contain 802.1q tagging. A port is removed from a default-VLAN when the port is added as an
untagged member of a different VLAN.
The tagged parameter allows the Brocade device to add a four-byte tag 802.1q tag to the
packets that go through the tagged ports. It also allows the ports to be members of other
VLANs.
Enter the port that you want to assign to the VLAN for the ethernet slot-number/port-number
parameter. When you add the LAG group’s primary port, all the ports on the LAG group become
members of the VLAN.
Use the no form of the command to remove the ports from a VLAN.
Example
Brocade(config)# vlan 4
Brocade(config-vlan-4)# no untag ethernet 1/11
Strictly or explicitly tagging a port
If you want a port to be strictly or explicitly tagged, that port has to be removed from the default
VLAN. Enter a command such as the following.
Brocade(config)# vlan 2
Brocade(config-vlan-2)# tagged e 1/1 to 1/8
Brocade(config-vlan-2)# vlan 1
Brocade(config-vlan-1)# no untagged e 1/1 to 1/8
Assigning or changing a VLAN priority
NOTE
When you apply the vlan priority command with running traffic, it may drop packets for a short period
of time. This is normal.
You can prioritize traffic on a VLAN by assigning a priority to a VLAN. All packets associated with the
VLAN will be classified to the configured priority.
Brocade(config-vlan-2)# priority 2
Syntax: [no] priority num
Possible Values: 0 - 7, “0” assigns the lowest priority and “7,” the highest priority. The default is
“0.”
Assigning a different ID to the default VLAN
As stated above, by default, all ports on a Brocade device belong to the default VLAN, which is VLAN
1, until it is assigned to a port-based VLAN. The default VLAN port membership is always untagged;
however, if you want to use VLAN ID 1 as a configurable VLANs with tagged port members, you can
assign a different VLAN ID as the default VLAN. Enter commands such as the following command.
Brocade(config)# default-vlan-id 4000
Syntax: [no] default-vlan-id vlan-id