Cisco 2950G 24 Software Configuration Guide - Page 345
Step 1, Ethernet VLAN
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Chapter 14 Configuring VLANs Configuring Normal-Range VLANs Beginning in privileged EXEC mode, follow these steps to use config-vlan mode to create or modify an Ethernet VLAN: Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Command Purpose configure terminal Enter global configuration mode. vlan vlan-id Enter a VLAN ID, and enter config-vlan mode. Enter a new VLAN ID to create a VLAN, or enter an existing VLAN ID to modify a VLAN. Note The available VLAN ID range for this command is 1 to 1005 when the SI is installed and 1 to 4094 when the EI is installed; do not enter leading zeros. For information about adding VLAN IDs greater than 1005 (extended-range VLANs), see the "Configuring Extended-Range VLANs" section on page 14-12. name vlan-name (Optional) Enter a name for the VLAN. If no name is entered for the VLAN, the default is to append the vlan-id with leading zeros to the word VLAN. For example, VLAN0004 is a default VLAN name for VLAN 4. mtu mtu-size (Optional) Change the MTU size (or other VLAN characteristic). end Return to privileged EXEC mode. show vlan {name vlan-name | id vlan-id} Verify your entries. copy running-config startup config (Optional) If the switch is in VTP transparent mode, the VLAN configuration is saved in the running configuration file as well as in the VLAN database. This saves the configuration in the switch startup configuration file. To return the VLAN name to the default settings, use the no vlan name or no vlan mtu config-vlan commands. This example shows how to use config-vlan mode to create Ethernet VLAN 20, name it test20, and add it to the VLAN database: Switch# configure terminal Switch(config)# vlan 20 Switch(config-vlan)# name test20 Switch(config-vlan)# end Beginning in privileged EXEC mode, follow these steps to use VLAN configuration mode to create or modify an Ethernet VLAN: Step 1 Step 2 Command vlan database vlan vlan-id name vlan-name Step 3 vlan vlan-id mtu mtu-size Purpose Enter VLAN configuration mode. Add an Ethernet VLAN by assigning a number to it. The range is 1 to 1001; do not enter leading zeros. If no name is entered for the VLAN, the default is to append the vlan-id with leading zeros to the word VLAN. For example, VLAN0004 is a default VLAN name for VLAN 4. (Optional) To modify a VLAN, identify the VLAN and change a characteristic, such as the MTU size. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 14-9
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