- VXLAN is a L2 over L3 solution
- The benefits include:
- The easy extension of Layer 2 segments across physical locations
- 16 million layer 2 segments supported thanks to a 24 bit VXLAN network identifier (VNID)
- Instead of STP, layer 3 Equal Cost Multi Pathing (ECMP) can be used
- VXLAN is a MAC-in-UDP solution
- VXLAN Tunnel Endpoints (VTEP) are used for the encapsulation and deencapsulation
- Stateless tunnels between VTEPs move traffic
- Multicast is used to reduce flooding scope
- VLAN to VXLAN translation can be provided by VTEPs acting as VXLAN Gateways
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