TCS What is SASE?

Secure Access Service Edge. SASE. That’s It.

Secure access service edge (SASE) is a network architecture that rolls software-defined wide area networking (SD-WAN) and security into a cloud service that promises simplified WAN deployment, improved efficiency and security, and to provide appropriate bandwidth per application.

The WAN side of SASE relies on capabilities supplied by entities including SD-WAN providers, carriers, content-delivery networks, network-as-a-service providers, bandwidth aggregators and networking equipment vendors.

The security side relies on cloud-access security brokers, cloud secure web gateways, zero-trust network access, firewall-as-a-service, web-API-protection-as-a-service, DNS and remote browser isolation.

Secure Access Service Edge. SASE.

SASE Architecture
Key Technologies

It is important to understand that SASE architecture isn’t tied to any vendor or solution, and aims to provide the most flexible security infrastructure possible. The following security and network components make up SASE architecture.

Cloud Access
Security Broker
(CASB) for an additional layer of support to ensure network traffic between on-premises devices and cloud providers comply with an organization's security policies
Firewall as a Service
(FWaaS) for next-generation firewall (NGWF) capabilities to protect the network against a wide range of modern threats. Not only does NGFW defend assets, such as servers hosted in the data center, but also users that work on-site or connect via VPN.
Secure Web Gateway
(SWG) for traffic inspection to protect users from malicious sites and enforce access policies
Zero Trust
Network Access
(ZTNA) solutions for seamless and secure connectivity to applications without placing users on the network or exposing applications to the internet or relying on legacy solutions.
SD-WAN for saving WAN costs and securing IoT devices. From one pane of glass, SD-WAN allows organizations to see and manage the data flows across all internet circuits and provides the ability to prioritize bandwidth to business-critical applications.
Secure Access Service Edge. SASE.

SASE Business Benefits

The SASE model encourages businesses to consolidate these core technologies with fewer vendors. Ideally, they would be managed from a single portal. There are numerous benefits of implementing a SASE architecture in an organization.

SASE allows organizations to attain cloud-centric technology, reduce the operational burden and cost, and improve security and reduce threats.

Latency-Optimized Routing
SASE helps reduce latency by routing network traffic across a global edge network. At the edge, data and network traffic are processed closer to the user or device.
Lower Costs and Complexity
Consolidating vendors & technology stacks, costs and complexities can be reduced.
New digital business scenarios with quicker adoption are viable with less risk exposure and less operational overhead.
More Easily
Enable ZTNA
Allow secure network access based on the identity of the user, device, or application with end-to-end encryption.
Centralized Policy
Local Enforcement
Gain cloud-based centralized management while maintaining a distributed enforcement of policies.