Dell Force10 S55T S55 Configuration Guide FTOS 8.3.5.3 - Page 764
Configuration Task List for VLANs, Create a port-based VLAN
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www.dell.com | support.dell.com • Tag Control Information (TCI) includes the VLAN ID (2 bytes total). The VLAN ID can have 4,096 values, but 2 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 on page 764 (mandatory) • Assign interfaces to a VLAN on page 765 (optional) • Assign an IP address to a VLAN on page 768 (optional) • Enable Null VLAN as the Default VLAN on page 769 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 in the CONFIGURATION mode: 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, you must assign interfaces in Layer 2 mode to the VLAN to activate the VLAN. Use the show vlan command (Figure 44-3) in the EXEC privilege mode to view the configured VLANs. 764 | Virtual LANs (VLAN)
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