Cisco Catalyst 2950 Software Configuration Manual page 315

Chapter 13 Configuring VLANs
Beginning in privileged EXEC mode, follow these steps to use config-vlan mode to create or modify an
Ethernet VLAN:
Command
Step 1
configure terminal
Step 2
vlan vlan-id
Step 3
name vlan-name
Step 4
mtu mtu-size
Step 5
end
Step 6 show vlan {name vlan-name | id vlan-id} Verify your entries.
Step 7
copy running-config startup config
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:
Command
Step 1
vlan database
Step 2 vlan vlan-id name vlan-name
Step 3
vlan vlan-id mtu mtu-size
78-11380-04
Purpose
Enter global configuration mode.
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 standard software image is installed and 1 to 4094
when the enhanced software image is installed; do not enter
leading zeros. For information about adding VLAN IDs greater
than 1005 (extended-range VLANs), see the
Extended-Range VLANs" section on page
(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.
(Optional) Change the MTU size (or other VLAN characteristic).
Return to privileged EXEC mode.
(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.
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.
Catalyst 2950 Desktop Switch Software Configuration Guide
Configuring Normal-Range VLANs
"Configuring
13-14.
13-11