Dell Force10 MXL Blade - Create a Port-Based VLAN; Configuration Task List for Vlans

626 | Virtual LANs (VLAN)
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The tag header contains some key information used by FTOS:
• The VLAN protocol identifier identifies the frame as tagged according to the IEEE 802.1Q
specifications (2 bytes).
• Tag control information (TCI) includes the VLAN ID (2 bytes total). The VLAN ID can have 4,096
values, but two are reserved.
Information contained in the tag header allows the system to prioritize traffic and to forward information to
ports associated with a specific VLAN ID. Tagged interfaces can belong to multiple VLANs, while
untagged interfaces can belong only to one VLAN.
Configuration Task List for VLANs
This section contains the following VLAN configuration tasks:
• Create a Port-Based VLAN (mandatory)
• Assign Interfaces to a VLAN (optional)
• Assign an IP Address to a VLAN (optional)
• Enable Null VLAN as the Default VLAN
Create a Port-Based VLAN
The default VLAN as VLAN 1 is part of the system startup configuration and does not require
configuration. To configure a port-based VLAN, you must create the VLAN and then add physical
interfaces or port channel (LAG) interfaces to the VLAN.
To create a port-based VLAN, use the following command:
Note: The insertion of the tag header into the Ethernet frame increases the size of the frame to more than
the 1518 bytes specified in the IEEE 802.3 standard. Some devices that are not compliant with IEEE 802.3
may not support the larger frame size.
Command Syntax Command Mode Purpose
interface vlan vlan-id CONFIGURATION Configure a port-based VLAN (if the VLAN ID is
different from the default VLAN ID) and enter
INTERFACE VLAN mode.
After you create a VLAN, to activate the VLAN, you must
assign interfaces in Layer 2 mode to the VLAN.