Is SASE the new buzzword??

The term SASE was coined by Gartner in 2019. Gartner is a global research and advisory firm.

Secure Access Service Edge abbreviated as SASE is a cloud-based IT model that incorporates SDN technology with network security.

SASE helps in better control and visibility over the network traffic. SASE is a secure end-to-end model which helps to communicate globally with all connected edges that are controlled and managed centrally.

SASE comprises SDN technology with Network security

What are SDN and SD-WAN?

SDN is an acronym for Software Defined Networks, a technology that helps in decoupling the control plane from the data plane of the layer-3 devices and make them dummy devices which means that these devices no more take any decisions rather they simply follow the instructions given to them.

The layer-3 devices are then controlled and managed centrally by an SDN controller that helps in better administration of the entire network. Hence instructions to the layer-3 devices are given by the SDN controller this helps to reduce the processing power of layer-3 devices and also better centralized management of the entire network.

SD-WAN is an acronym for "Software Defined Wide Area Network". It is the management of wide area network (WAN) by decoupling the control plane from the networking hardware.

Why SDN?

SDN can make networks,

1. More flexible,

2. Easy to expand,

3. Cost-efficient,

4. And simplifies the operational complexity.

What are the Network Security components?

The Network Security components in SASE includes,

Secure Web Gateway: The Secure web gateway helps in protecting against cyber threats and advanced persistent attacks by URL filtering, It checks for malicious files, blocks unauthorized traffics, helps in enforcing companies policies.

Firewall as a Service: FWaaS is a technology that focuses on providing firewall functionalities from the cloud as a service. FWaaS functionalities include Intrusion Prevention System (IPS), Intrusion Detection System (IDS), Advanced Threat Detection (ATD), URL filtering, centralized uniform management of policies across all networks, etc.

Cloud access security broker: CASB acts as an intermediary between users and cloud service providers. CASB helps in securing confidential data, it helps in better visibility and control over sensitive data. CASB does this efficiently by enabling access control, Data loss prevention (DLP), and ensuring compliance with data privacy regulation. With CASB we can build a policy once and apply it across multiple applications.

Zero trust network access: ZTNA restricts internal resources and applications from the public and the access is only given when someone proves that they are authorized based on real-time verification of every user and device to every protected application.

Why SASE?

1. Centralized management of policy.

2. Enabling Zero trust network access.

3. Improving security and Management of globally connected networks centrally.

4. Defense against cyber threats and data breaches.

5. Latency-optimized routing.

What do you think about SASE? Do you think it's the future share your thoughts in the comment section and do check our other posts on cyber and AI here .

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