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Catalyst 2950 Desktop Switch Software Configuration Guide
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Chapter 14 Configuring VLA Ns Configuring Normal -Rang e VLANs
Beginning in privileged EXEC mode, follow these steps to use config-vlan mode to create or modify an
Ethernet VLAN:
To return the VLAN name to the default settings, use the no vlan name or no v lan mtu c onfig-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 Et herne t V LA N:
Command Purpose
Step 1 configure terminal Enter globa l configurati on mode.
Step 2 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 V LAN ID range for th is comm and is 1 to 1 005
when the SI is inst alle d a nd 1 to 4094 w hen the EI is insta lled;
do not e nter lea ding z eros. F or in formatio n about adding V LAN
IDs greate r than 1005 (ext ended- range VL ANs), see th e
“Configuring Extended-Range VLANs” sec tion on page 14-12.
Step 3 name vlan-name (Optional) En ter a name for the VLAN. If no name is en tered 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
VLA N 4.
Step 4 mtu mtu-size (Optiona l) Change th e MTU size (or other VLA N characte ristic) .
Step 5 end Return to privileged EXEC mode.
Step 6 show vlan {name vlan-name | id vlan-id} Verify your entries.
Step 7 copy running-config startup config (Optional) If the switch is in VTP transparent mode, the VLAN
configurati on is saved in the running configuration file as well as in the
VLAN database. This saves the configuration in the switch startup
configurati on file.
Command Purpose
Step 1 vlan database Enter VLAN configuration mode.
Step 2 vlan vlan-id name vlan-name Add an Et herne t V LAN by assi gning a num be r to it . The r ange is 1 to
1001; do no t e nte r le adi ng zero s.
If no nam e is entered for the VLAN, the default i s to append the vlan-id
with leading zeros to the word VLAN. For example, VLAN0004 is a
default VLAN name for VLAN 4.
Step 3 vlan vlan-id mtu mtu-size (Opti onal) To modi fy a VLA N, iden tify th e VLAN and c hange a
char acter istic , suc h as the MTU s ize.