Cisco Systems 3550 Assigning Static-Access Ports to a VLAN

9-19
Catalyst 3550 Multilayer Switch Software Configuration Guide
78-11194-03
Chapter9 Creating and Maintai nin g VLA Ns VLANs in the VTP Database
Caution When you delete a VLAN, any ports assigned to that VLAN become inactive. They remain
associated with the VLAN (and thus inactive) until you assign them to a new VLAN.
Beginning in privileged EXEC mode, follow these steps to delete a VLAN on the switch:
This example shows how to verify a VLAN removal by us ing t h e show vlan brief privileged EXEC
command:
Switch# show vlan brief
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Gi0/1, Gi0/2, Gi0/3, Gi0/4
Gi0/5, Gi0/7, Gi0/8, Gi0/9
Gi0/10, Gi0/11, Gi0/12
11 VLAN0011 active
20 VLAN0020 active
129 VLAN0129 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active
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 (VTP is disabled).
Note If you assign an interface to a VLAN that does not exist, the new VLAN is created. (See the “Adding
an Ethernet VLAN” section on page 9-17.)
Beginning in privileged EXEC mode, follow these steps to assign a port to a VLAN in the VTP database:
Command Purpose
Step1 vlan database Enter VLAN configuration mode.
Step2 no vlan vlan-id Remove the VLAN by entering the VLAN ID.
Step3 exit Update the VLAN database, propagate it throughout the
administrative domain, and return to privileged EXEC mode.
Step4 show vlan brief Verify the VLAN removal.
Command Purpose
Step1 configure terminal Enter global configuration mode
Step2 interface interface-id Enter the interface to be added to the VLAN.
Step3 switchport mode access Define the VLAN membership mode for the port (Lay er 2 a cce ss
port).
Step4 switchport access vlan vlan-id Assign the port to a VLAN.
Step5 end Return to privileged EXEC mode.