Gartner发布2024年SASE融合战略路线图：SASE当前状态与理想状态及其差距分析

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Gartner, Inc. | G00792299 Page 1 of 21

2024 Strategic Roadmap for SASE Convergence

Published 15 December 2023 - ID G00792299 - 31 min read

By Analyst(s): John Watts, Andrew Lerner, Neil MacDonald

Initiatives: Infrastructure Security; Build and Optimize Cybersecurity Programs; I&O

Platforms

The shift to cloud computing and remote work increases SASE

demand to enable secure access from any device. Security and

risk management leaders must converge networking and security

into one or two explicitly partnered SASE vendor offerings and

retire legacy perimeter systems.

Overview

Key Findings

Recommendations

Security and risk management (SRM) leaders responsible for infrastructure security

should include the following activities in their SASE roadmap:

Secure access service edge (SASE) frameworks enable a uniﬁed approach to

connectivity and security for a hybrid workforce and decentralized deployment of

devices, branches, and enterprise applications and services.

■

Legacy networking and security solutions are inadequate for modern applications

and networks, creating complexity for network and security administrators, and poor

and inconsistent experiences for users.

■

Organizations can accelerate SASE adoption by creating a strategic roadmap

aligned with existing IT skills, vendor contracts and hardware refresh cycles.

■

Organizations have a goal to converge and adopt SASE in one of three ways: single-

vendor SASE, dual-vendor SASE or managed SASE.

■

Engage with stakeholders with goals to modernize branch ofﬁce connectivity, pursue

a zero trust strategy, or secure and connect hybrid workers.

■

This research note is restricted to the personal use of chenlizhen@qianxin.com.

Gartner, Inc. | G00792299 Page 2 of 21

Introduction

Traditionally, most network and security architectures were designed with the enterprise

data center as the focal point for access and security needs, supporting users that were

relatively static. However, digital business has driven requirements for new digital

capabilities — such as cloud and edge computing, and work-from-anywhere initiatives —

which have, in turn, inverted access requirements from forcing end users to connect to a

managed network for security to securing their access regardless of their location.

Gartner’s 2023 Cloud End-User Behavior research shows that more than 50% of all

applications now reside outside of an on-premises network and data center.

Network security designs based on a collection of perimeter security appliances are ill-

suited to address the dynamic anywhere, anytime needs of a modern digital business and

its hybrid digital workforce.

The legacy perimeter must transform into a set of user- and application-centric converged

capabilities, managed from the cloud and enforced when and where an enterprise needs

them — that is, a converged set of dynamically created, policy-based network and security

controls converged into a SASE framework.

At the same time, enterprises are increasingly pursuing zero trust strategies, but ﬁnding

meaningful implementations of zero trust principles challenging. Delivering a zero trust

security posture is an integral part of a SASE architecture and integral to emerging SASE

offerings. Zero trust networking models replace implicit trust with continuously assessed

risk/trust levels (see Quick Answer: Explaining Zero Trust Security Approaches to Tech

Executives). Zero trust architectures adapt the amount of explicit trust granted for

interactions as the context surrounding the interactions changes while still applying

security inspection to all trafﬁc and data.

Select converged SASE offerings with single pass inspection of trafﬁc, ﬂexible

inspection points and routing, and customized logging to meet performance,

simplicity and compliance requirements.

■

Consolidate existing networking and security contracts, and engage networking and

security engineers before any technology evaluations to minimize duplicate spend.

■

Create a shortlist and evaluation criteria aligned with the preferred deployment

option, and conduct a pilot before any purchase to validate key functional

requirements and use cases.

■

This research note is restricted to the personal use of chenlizhen@qianxin.com.

Gartner, Inc. | G00792299 Page 4 of 21

Since deﬁning the SASE market in 2019, industry and client interest in SASE has exploded,

primarily driven by existing enterprise needs not being met by existing vendors. SASE

continued sustained interest from Gartner clients, with a 10% increase in inquiries during

the second half of 2022 into the ﬁrst half of 2023 over the prior 12 months. In response to

customer demand, vendors have been rapidly coming to market with new solutions.

Gartner’s Forecast Analysis: Secure Access Service Edge, Worldwide predicts the total

addressable market (TAM) of this market to be $25 billion in 2027 with a ﬁve-year (2021

through 2026) compound annual growth rate (CAGR) of 29%. In the last 18 months, there

have been several signiﬁcant vendor acquisitions and announcements to build out a

complete SASE portfolio, including multiple managed SASE offerings (see Note 1), and we

predict more of these activities are to come.

In the 2024 Gartner CIO and Technology Executive Survey, 39% of respondents said they

had deployed or will deploy SASE within 24 months.

However, enterprise transition to a

complete SASE framework will take time. The reality is that enterprises have existing

investments in hardware and software with time and value remaining. Hardware refresh

cycles at branch ofﬁces average four to seven years. Relationships and staff expertise

with incumbent vendor offerings is another factor. Moreover, most larger enterprises have

separate network security and network operations teams, further complicating SASE

adoption.

Finally, many vendors claim to offer a SASE product but don’t deliver all of the required

and recommended SASE capabilities (see Note 2). Gartner tracks four separate markets

where buyers begin their SASE transformation journey and purchasing decisions (see

Where Do I Start With SASE Evaluations: SD-WAN, SSE, Single-Vendor SASE, or Managed

SASE?). Not all of a vendor’s SASE capabilities are at the same level of functionality and

maturity. We analyzed the gaps between the future and current state of SASE offerings in

the market to enable SRM leaders with a strategic roadmap, a migration plan and

implementation advice for SASE adoption over the next several years (see Figure 2).

This research note is restricted to the personal use of chenlizhen@qianxin.com.

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