Data Plane – SD-Access Design
The SD-Access fabric uses VXLAN encapsulation for the fabric data plane over the top of the underlay network. VXLAN encapsulations are IP/UDP based, using port 4789, which effectively creates the overlay within the SD-Access fabric. VXLAN is an IETF standard defined in RFC 7348 as a way to overlay a Layer 2 network over a… Read More »