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Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
OL-10101-02
Chapter 16 Configuring VLANs
Configuring Normal-Range VLANs
Beginning in privileged EXEC mode, follow these steps to delete a VLAN on the switch by using global
configuration mode:
To delete a VLAN in VLAN database configuration mode, use the vlan database privileged EXEC
command to enter VLAN database configuration mode and the no vlan vlan-id VLAN configuration
command.
Assigning Static-Access Ports to a VLAN
You can assign a static-access port to a VLAN without having VTP globally propagate VLAN
configuration information by disabling VTP (VTP transparent mode).
Note If you assign an interface to a VLAN that does not exist, the new VLAN is created. (See the “Creating
or Modifying an Ethernet VLAN” section on page 16-8.)
Beginning in privileged EXEC mode, follow these steps to assign a port to a VLAN in the VLAN
database:
To return an interface to its default configuration, use the default interface interface-id interface
configuration command.
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
no vlan vlan-id Remove the VLAN by entering the VLAN ID.
Step 3
end Return to privileged EXEC mode.
Step 4
show vlan brief Verify the VLAN removal.
Step 5
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.
Command Purpose
Step 1
configure terminal Enter global configuration mode
Step 2
interface interface-id Enter the interface to be added to the VLAN.
Step 3
switchport mode access Define the VLAN membership mode for the port (Layer 2 access
port).
Step 4
switchport access vlan vlan-id Assign the port to a VLAN. Valid VLAN IDs are 1 to 4094.
Step 5
end Return to privileged EXEC mode.
Step 6
show running-config interface interface-id Verify the VLAN membership mode of the interface.
Step 7
show interfaces interface-id switchport Verify your entries in the Administrative Mode and the Access Mode
VLAN fields of the display.
Step 8
copy running-config startup-config (Optional) Save your entries in the configuration file.