View source for VLAN's


== Creating a VLAN ==

   switch# config t
   switch(config)# vlan 5
   switch(config-vlan)# name engineering
   switch(config-vlan)# exit


== Give ports access to VLAN ==

   switch# config t
   switch(config)# interface range FastEthernet0/20 - 24
   switch(config-if-range)# switchport access vlan 5


== Configure VLAN Trunking between two switches ==

If you have two switches connected by a cross over, and there is a VLAN on each switch that you want to go over both switches, create the VLAN with the same name and number on both switches and the setup trunking as follows:


On Switch 1:

   switch# config t
   switch(config)# interface FastEthernet0/24
   switch(config-if)# switchport mode trunk
   switch(config-if)# switchport trunk allowed vlan 5

Do the same on Switch 2 and then connect the switches via a cross-over cable, port 24 to port 24.

This enable trunking on port 24, but then restricts it to just VLAN 5.  You may also need to run this command:

   switch(config-if)# switchport trunk encapsulation dot1q