Basics of VXLAN

VXLAN 

Virtual Extensible LAN protocol

Virtual Extensible LAN is a network virtualization technology that addresses the scalability issues associated with big cloud computing or networking organizations.

VXLAN technology permits to segment the network as VLANs do, but it provides benefits that VLANs cannot.

The present VLAN have maximum 4094 VLAN limits on its scalability, whereas VXLAN offers up to 16 Million Scalability. 

 VXLAN offers to extend Layer 2 networks across Layer 3 infrastructure by way of MAC-in-UDP encapsulation and tunneling. VXLAN enables flexible workload placements by way of the Layer 2 extension. 

For Data Centers Virtualized hosts are increasingly adopting VXLAN now a days.

Benefits

• Increased scalability.
• Improved network utilization.
• VXLAN is standards-based and is  defined in RFC 7348, so you’re not locked into a specific vendor/OEM when you ask for VXLAN.
• VXLAN can deliver millions of Layer 2 segments, and VXLAN enables the network to handle massive traffic loads in cloud and multi-tenant environments, along with providing the same isolation and segmentation as older VLANs.

-DR