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Configuring VLANs Defining VLAN Port Assignments
OmniSwitch 6600 Family Network Configuration Guide April 2006 page 4-7
Enabling/Disabling the VLAN Administrative Status
To enable or disable the administrative status for an existing VLAN, enter vlan followed by an existing
VLAN ID and either enable or disable.
-> vlan 755 disable
-> vlan 255 enable
When the administrative status for a VLAN is disabled, VLAN port assignments are retained but traffic is
not forwarded on these ports. If any rules were defined for the VLAN, they are also retained and continue
to classify mobile port traffic. See Chapter 8, “Defining VLAN Rules,” for more information.
Modifying the VLAN Description
To change the description for a VLAN, enter vlan followed by an existing VLAN ID and the keyword
name followed by the new description (up to 32 characters). For example, the following command
changes the description for VLAN 455 to “Marketing IP Network”:
-> vlan 455 name “Marketing IP Network”
Note that quotation marks are required if the description consists of multiple words separated by spaces. If
the description consists of only one word or words are separated by another character, such as a hyphen,
then quotes are not required. For example,
-> vlan 455 name Marketing-IP-Network
Defining VLAN Port Assignments
Alcatel switches support static and dynamic assignment of physical switch ports to a VLAN. Regardless
of how a port is assigned to a VLAN, once the assignment occurs, a VLAN port association (VPA) is
created and tracked by VLAN management software on each switch. To view current VLAN port assign-
ments in the switch configuration, use the show vlan port command.
Methods for statically assigning ports to VLANs include the following:
• Using the vlan port default command to define a new configured default VLAN for both non-mobile
(fixed) and mobile ports. (See “Changing the Default VLAN Assignment for a Port” on page 4-8.)
• Using the vlan 802.1q command to define tagged VLANs for non-mobile ports. This method allows
the switch to bridge traffic for multiple VLANs over one physical port connection. (See Chapter 11,
“Configuring 802.1Q.”)
• Configuring ports as members of a link aggregate that is assigned to a configured default VLAN. (See
Chapter 12, “Configuring Static Link Aggregation,” and Chapter 13, “Configuring Dynamic Link
Aggregation.” for more information.)
Dynamic assignment applies only to mobile ports. When traffic is received on a mobile port, the packets
are classified using one of the following methods to automatically determine VLAN assignment (see
Chapter 7, “Assigning Ports to VLANs,” for more information):
• Packet is tagged with a VLAN ID that matches the ID of another VLAN that has mobile tagging
enabled. (See “Enabling/Disabling VLAN Mobile Tag Classification” on page 4-10.)
• Packet contents matches criteria defined in a VLAN rule. (See “Configuring VLAN Rule Classifica-
tion” on page 4-9 and Chapter 8, “Defining VLAN Rules.”)