VLAN (Virtual Lan)
VLAN1 is called Management VLANbecause it has created for manage or config via telnet
by default Vlan1 is empty and no have any IP Address
We must to address to VLAN1 and it will be switch's address
Ex.
switch1(config)#int vlan1
switch1(config)#ip address 10.10.10.1 255.255.255.0
switch1(config)#no shutdown
