How to Create a New VLAN in Switch Device

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This article will show how to create a new VLAN in a switch device. The execution is possible using a simulation application for an example a Cisco Packet Tracer or a GNS3. Just drag down a new device of any switch device type. The following is an example of adding new VLAN in a switch device using a Cisco Packet Tracer. The following is the step for creating a new VLAN in the switch device. The steps consist of several command execution. Do the execution of the command after adding the switch device to the Cisco Packet Tracer network design. Those command executions is in the following sequence :

1. Switch to the Privileged EXEC mode from the User EXEC mode. Execute the following command :

Switch>ena
Switch#

2. Switch to the Global Configuration Mode from the Privileged EXEC mode. Execute the following command :

Switch#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
Switch(config)#vlan 10
Switch(config-vlan)#end
Switch#

3. In order to make sure that the VLAN is exist after executing the above command, just type the following command :

Switch(config)#vlan 10 
Switch(config-vlan)#end
Switch#
%SYS-5-CONFIG_I: Configured from console by console

Switch#

After creating a new VLAN, to make sure that the new VLAN exist, just type the following command :

sh vlan id vlan_id

For an example :

Switch#sh vlan id 10

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
10   VLAN0010                         active    Fa0/1, Fa1/1

VLAN Type  SAID       MTU   Parent RingNo BridgeNo Stp  BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
10   enet  100010     1500  -      -      -        -    -        0      0

Switch#

Another way to create a new VLAN is by using VLAN database. Just type the following command :

Switch#vlan database
% Warning: It is recommended to configure VLAN from config mode,
  as VLAN database mode is being deprecated. Please consult user
  documentation for configuring VTP/VLAN in config mode.

Switch(vlan)#vlan 20 
VLAN 20 added:
    Name: VLAN0020
Switch(vlan)#sh vlan id 20 
Switch(vlan)#exit
APPLY completed.
Exiting....

As in the above step, to make sure the existence of the VLAN, just type the following command to check if it is available or not :

Switch#sh vlan id 20 

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
20   VLAN0020                         active    

VLAN Type  SAID       MTU   Parent RingNo BridgeNo Stp  BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
20   enet  100020     1500  -      -      -        -    -        0      0

Switch#

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