HOW TO CREATE VLAN ON CISCO SWITCH

  HOW TO CREATE VLAN,TYPE OF VLAN AND ADVANTAGES


To create and name a static VLAN, open console connection to Switch 1, and move to global configuration mode. Enter the following IOS commands to create VLAN 10 and name VLAN 10 as ‘engineering’.
   SW1>enable
   SW1#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
   SW1(config)#vlan 10
   SW1(config-vlan)#name engineering
   SW1(config-vlan)#exit
   SW1(config)#exit
   SW1#
Enter the following IOS commands to create another VLAN, VLAN 20 and name VLAN 20 as ‘planning’.
   SW1>enable
   SW1#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
   SW1(config)#vlan 20
   SW1(config-vlan)#name planning
   SW1(config-vlan)#exit
   SW1(config)#exit
   SW1#


To delete the VLAN, just use the no form of the above command.
mytech.com.SW1(config)#no vlan 10
It is very easy to create and name a static VLAN. Refer our lab setup below, where two switches are connected using a trunk link.
Hpw to creat and static blan

TYPE OF MEMBERSHIP

• Static VLANs: In a static VLAN, the network administrator creates a VLAN and then assigns switch ports to the VLAN. Static VLANs are also called port-based VLANs. The association with the VLAN does not change until the administrator changes the port assignment. End-user devices become the members of VLAN based on the physical switch port to which they are connected.
The ports on a single switch can be assigned multiple VLANs. Even though two devices are connected to different ports on a same switch, traffic will not pass between them if the connected ports are on different VLANs. We need a layer 3 device (typically a Router) to enable communication between two VLANs.
• Dynamic VLANs: In a dynamic VLAN, the switch automatically assigns the port to a VLAN using information from the user device like MAC address, IP address etc. When a device is connected to a switch port the switch queries a database to establish VLAN membership. A network administrator must configure VLAN database of a VLAN Membership Policy Server (VMPS).
Dynamic VLANs support instant movability of end devices. When we move a device from a port on one switch to a port on another switch, the dynamic VLANs will automatically configure the membership of the VLAN.

The Advantages of VLAN are listed below. 

• Broadcast Control: Broadcasts are required for the typical capacity of a system. Numerous conventions and applications rely upon communicate correspondence to work legitimately. A layer 2 exchanged system is in a solitary communicate area and the communicates can achieve the system portions which are so far where a specific communicate has no extension and expend accessible system data transfer capacity. A layer 3 gadget (commonly a Router) is utilized to fragment a communicate space.

On the off chance that we portion a substantial LAN to littler VLANs we can diminish communicate activity as each communicate will be sent on to the significant VLAN as it were.
• Security: VLANs give improved system security. In a VLAN organize condition, with different communicate areas, arrange chairmen have control over each port and client. A malignant client can no longer simply connect their workstation to any switch port and sniff the system movement utilizing a parcel sniffer. The system manager controls each port and whatever assets it is permitted to utilize.
VLANs help to confine delicate movement starting from an undertaking office inside itself.
• Cost: Segmenting a substantial VLAN to littler VLANs is less expensive than making a steered coordinate with switches in light of the fact that regularly switches costlier than switches.
• Physical Layer Transparency: VLANs are straightforward on the physical topology and medium over which the system is associated.

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