Now let us discuss the final benefit of VLANs.
So here you can see that to move a host A that is this host machine which is actually operating in Vlan
12.
So to move a host A from Vlan 12 to Vlan ten simply change the p five port configuration and configure
it under Vlan ten.
So you can see that the Port P five of L two switch one is operating in Vlan 12 and therefore the host
machine a connected to L2 switch one via Port P five is operating in Vlan 12.
Now if you want to change that host machine, A should operate in Vlan ten instead of Vlan 12.
Then all you have to do is to change the configuration of port P five of l2 switch one.
So just configure the port P five to operate in Vlan ten instead of Vlan 12.
And you are done.
So after this configuration change, your host machine is actually operating in Vlan ten.
So basically you have shifted the host machine A from Vlan 12 to Vlan ten.
And you don't have to move machine A from its current physical location.
Also, one more configuration change.
You need to do that to change the IP address of host machine A and configure it to IP address which
is a member of subnet.
12 .1.1.0 slash 24.
Because this is the network ID of Vlan ten.
So you can see that you are able to move the machine A from Vlan 12 to Vlan ten by only changing the
configuration of l2 switch and host machine.
You need not do any physical wire or cabling change of the network in order to move the machines across
VLANs.
So this is the flexibility that is provided by VLANs to the network administrators.
So you can see that VLANs provide a great flexibility to the network administrators in terms of moving
machines from one Vlan to another.
Right.
But now here a big question arises how would you how would a host C will communicate to host E, that
is host C is present in Vlan ten, whereas host E is present in Vlan 11.
So what would you do to make the host machines present in different VLANs communicate with each other?
Now this is a different concept altogether and we will going to study this in detail when we will study
into Vlan routing.