Dell Force10 MXL Blade MXL 10/40GbE Switch IO Module Configuration Guide - Page 629

To view the configured VLANs, use the show vlan command in EXEC privilege mode (Figure 37-3). Figure 37-3. show vlan Command Example FTOS#show vlan Codes: * - Default VLAN, G - GVRP VLANs, R - Remote Port Mirroring VLANs, P - Primary, C Community, I - Isolated Q: U - Untagged, T - Tagged x - Dot1x untagged, X - Dot1x tagged G - GVRP tagged, M - Vlan-stack, H - VSN tagged i - Internal untagged, I - Internal tagged, v - VLT untagged, V - VLT tagged NUM 1 * 20 Status Description Inactive a Active 1002 Active FTOS# Q Ports U Po32() U Te 0/3,5,13,53-56 T Te 0/3,13,55-56 A VLAN is active only if the VLAN contains interfaces and those interfaces are operationally up. In Figure 37-3, VLAN 1 is inactive because it contains the interfaces that are not active. The other VLANs listed in the Figure 37-3 contain enabled interfaces and are active. Note: In a VLAN, the shutdown command stops Layer 3 (routed) traffic only. Layer 2 traffic continues to pass through the VLAN. If the VLAN is not a routed VLAN (that is, configured with an IP address), the shutdown command has no affect on VLAN traffic. When you delete a VLAN (using the no interface vlan vlan-id command), any interfaces assigned to that VLAN are assigned to the default VLAN as untagged interfaces. Assign Interfaces to a VLAN To assign interfaces in Layer 2 mode to a VLAN, use the tagged and untagged commands. To place an interface in Layer 2 mode, use the switchport command. These Layer 2 interfaces can further be designated as tagged or untagged. For more information, refer to the Interfaces and Configure Layer 2 (Data Link) Mode. When you place an interface in Layer 2 mode using the switchport command, the interface is automatically designated untagged and placed in the default VLAN. To view which interfaces are tagged or untagged and to which VLAN they belong, use the show vlan command. For example, Figure 37-3 shows that six VLANs are configured, and two interfaces are assigned to VLAN 2. The Q column in the show vlan command example notes whether the interface is tagged (T) or untagged (U). For more information about this command, refer to the command statement in the Layer 2 chapter of the FTOS Command Reference Guide. To view just the interfaces that are in Layer 2 mode, use the show interfaces switchport command in EXEC privilege mode or EXEC mode. Virtual LANs (VLAN) | 627