Dell Force10 MXL Blade MXL 10/40GbE Switch IO Module Configuration Guide - Page 628
Configuration Task List for VLANs, Create a Port-Based VLAN
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www.dell.com | support.dell.com 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. 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. 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: Command Syntax interface vlan vlan-id Command Mode CONFIGURATION Purpose 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. 626 | Virtual LANs (VLAN)
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