Virtualization Technology

Virtual LAN (vLAN): Logically segment a network without altering the physical topology

Virtual Desktop Technology:
- Remote Access 
- Extension of Virtual Applications 

Virtual Networking 
- Storage area network 
- Software Defined Network (Makes organization Vendor independent) 

Virtual Extensible LAN (VXLAN):

As Organization are moving towards client, the requirement is that CSP (Cloud Service Provider). VXLAN allows you to segment your network and also solves the scalability limitation of VLAN's and provides benefits that VLAN Cannot.

- You can create 16 Million VXLAN (24 bit VNID) vs 4094 VLAN (12 Bit VNID)

We need VXLAN for the Scalability of VLAN