VXLAN
VXLAN, which stands for Virtual Extensible LAN, is a network virtualization technology. It allows for the creation of large numbers of virtualized Layer 2 subnets over an underlying Layer 3 network. By encapsulating MAC addresses in UDP packets, VXLAN overcomes the traditional VLAN limits and provides greater scalability and flexibility, especially in cloud environments. This makes it easier to move and manage workloads within and across data centers without being constrained by physical network configurations.
VXLAN is an open standard and thus can be deployed across equipment of multiple vendors.
Links
https://networklessons.com/cisco/ccnp-encor-350-401/introduction-to-virtual-extensible-lan-vxlan https://datatracker.ietf.org/doc/html/rfc7348
Links to this page:
- Ethernet VPN (EVPN)
- Ethernet over IP (EoIP)
- Network - BUM Traffic
- Network Design - Choosing a technology for multiple datacenter topology
- Networks - Overlay Network
- Networks - Spanning Layer 2 networks across remote sites
- Networks - Underlay Network
- VXLAN - Control Plane Options
- VXLAN - MP-BGP EVPN and Multicast
- VXLAN - Use Cases
- VXLAN - VLAN to VNI mapping
- VXLAN - using an MP-BGP EVPN control plane
- VXLAN VTEP
- VXLAN access trunk port