SD-WAN

Routing

Forwarding packets between networks by selecting the best available path from a route table.

VPN

A virtual private network carries private traffic across untrusted networks inside an authenticated, encrypted tunnel.

Zero Trust

A security model that removes implicit trust based on network location and instead verifies every request explicitly against identity, device and context.

Network Architecture

The structural design of an organisation's networks: segmentation, routing, redundancy, edge services and policy enforcement points.

BGP

The path vector protocol that exchanges reachability between autonomous systems and, increasingly, inside data centre fabrics.