SASE — Secure Access Service Edge
Definition
A network architecture that combines wide-area networking (SD-WAN) with cloud-native security services (ZTNA, SWG, CASB, FWaaS) delivered as a single cloud-based platform.
Context & Usage
SASE was introduced by Gartner in 2019. It consolidates network and security infrastructure into a unified cloud service, replacing the traditional "appliance stack" model. Major vendors: Cisco SASE, Palo Alto Prisma SASE, Zscaler SASE, Cato Networks SASE.
Examples
- Cisco Umbrella + Cisco SD-WAN = Cisco SASE
- Palo Alto Prisma Access
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