Cisco WS-C2980G-A Software Guide - Page 212
Configuring VLANs on the Switch, Creating or Modifying an Ethernet VLAN
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Configuring VLANs on the Switch Chapter 10 Configuring VLANs Configuring VLANs on the Switch VLANs are either normal range or extended range. VLANs in the normal range are VLANs 2-1000. VLANs in the extended range are VLANs 1025-4094. When you configure normal-range VLANs, VLANs 2-1000, you can configure one VLAN at a time or a range of VLANs, all with a single command. If you configure a range of VLANs, you cannot specify a name, because VLAN names must be unique. Note You cannot configure or modify normal-range VLAN 1. You can use VTP to manage global normal-range VLAN configuration information on your network, but you cannot manage extended-range VLAN configuration information. In order to use VTP, you must configure it before you create any normal-range VLANs. For more information about configuring VTP, see Chapter 9, "Configuring VTP." Note With VTP version 3, you can manage extended-range VLANs 1025-4094. These VLANs are propagated with VTP version 3. Before configuring extended-range VLANs, VLANs 1025-4094, you must first enable MAC address reduction. When you enable MAC address reduction, the system commits the IDs for extended-range VLANs. After you enable MAC address reduction, you cannot disable it as long as any extended-range VLANs exist. Note If you wish to use extended-range VLANs and you have existing 802.1Q-to-ISL mappings in your system, you must first delete the mappings. See the "Clearing 802.1Q-to-ISL VLAN Mappings" section on page 10-12 for more information. Creating or Modifying an Ethernet VLAN To create a new Ethernet VLAN, perform this task in privileged mode: Task Step 1 Create a new Ethernet VLAN. Step 2 Verify the VLAN configuration. Command set vlan vlan_num [name name] [said said] [mtu mtu] [translation vlan_num] show vlan [vlan_num] Note The default VLAN type is Ethernet; if you do not specify the type, the VLAN is an Ethernet VLAN. 10-6 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01
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