VXLAN (Virtual Extensible LAN) is a technology for virtualizing networks that was invented to solve the scalability issues of VLANs (Virtual Local Area Networks). VXLAN creates an extended Layer 2 overlay network that can span large Layer 3 network infrastructures. To achieve this, it uses a 24-bit segment identifier called the VXLAN Network Identifier (VNI) that allows up to sixteen million different network segments.<\/p>\n\n\n\n
VTEP or VXLAN Tunnel Endpoint is one component in the architecture of VXLAN; its job involves encapsulating and decapsulating Ethernet frames into UDP packets so they can be sent across an IP network. MAC addresses are mapped to IP addresses by VTEPs at both ends of a tunnel thus enabling transparent communication throughout the entire VXLAN fabric. This reduces broadcast traffic within a network and ensures that the underlying physical infrastructure remains unaware of any overlays on top of it.<\/p>\n\n\n\n
The benefits of VXLAN become most apparent when dealing with large-scale data centers, where service provider multi-tenancy support, tenant isolation, and network segmentation are needed. By adopting VXLAN, organizations can improve their network design\u2019s flexibility and scalability while enhancing efficiency in data center operations.<\/p>\n\n\n\n