Dell Force10 S25N-S50N Dell Force10 S25 Systems Quick Start Guide - Page 23

Create a VLAN The Default VLAN is part of the system startup configuration, and is by default, VLAN 1. You may make another VLAN the Default VLAN. The Default VLAN cannot be deleted, disabled, or configured (you cannot assign it an IP address), and only untagged interfaces can belong to it. When an interface is configured, a switchport automatically places it in the default VLAN as an untagged interface. All switchports must belong to at least one VLAN, so to remove a switchport from the Default VLAN, you must place it as tagged or untagged in some other VLAN, or remove the switchport configuration. Task Create a VLAN Display all VLANs. Command Syntax Command Mode interface vlan vlan-id CONFIGURATION show vlan vlan-id EXEC Privilege Assign Interfaces to a VLAN A port may either be an untagged member of a single VLAN, or a tagged member of perhaps multiple VLANs. • Untagged Ports - ports that do not append an 802.1Q VLAN tag to frames on egress, and do not accept tagged frames on ingress (tagged frames are dropped). Untagged ports must be connected to VLAN-unaware devices. • Tagged Ports - ports that append an 802.1Q tag to frames on egress, and accept only tagged frames on ingress (untagged frames are dropped). Tagged ports must be connected to VLAN-aware devices. When you configure an enabled port as a switchport, the port is placed in the default VLAN. To remove a switchport from the default VLAN, remove the switchport configuration. To move the port to another VLAN, add it to the desired VLAN as either a tagged or untagged member. To view just the interfaces that are in Layer 2 mode, enter the show interfaces switchport command in the EXEC mode. Installing the Software 21