Introduction
If we look at the history of computing, we see the same pattern repeating itself across different domains. First, we start with the bare-metal version of a technology, whether it is machines, services, or applications. Over time, this physical foundation gives way to virtualization, unlocking both significant benefits and new challenges.
The first waves of virtualization
A prime example is computing itself. The rise of virtual machines completely changed the way we manage high availability, scalability, and maintenance in an ever-evolving internet. By decoupling workloads from physical servers, organizations could run more efficiently, recover faster from failures, and adapt dynamically to demand.
The second wave came with applications and services, which evolved along slightly different but parallel paths.
Application virtualization
We saw the emergence of application virtualization technologies like:
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Citrix (XenApp, Virtual Apps and Desktops)
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VMware (ThinApp, later Horizon)
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Microsoft RemoteApp
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Parallels RAS
These platforms allowed businesses to deliver applications to users without installing them directly on their devices, reducing compatibility issues and centralizing management.
Service virtualization and the cloud
On the service side, we witnessed innovations like Docker and Kubernetes, which containerized workloads for portability and scalability. The SaaS model further shifted applications away from local machines into the cloud, where they became more resilient, flexible, and accessible.
This evolution even gave rise to the serverless movement, where organizations can run applications without ever managing physical servers at all.
Benefits and caveats
The advantages of these waves of virtualization are clear:
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Scalability, as resources can grow or shrink as needed
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Maintainability, with updates and patches applied centrally
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Reduced maintenance burden, with less time spent on physical hardware
But there are also downsides. Cloud services often mean ongoing subscriptions, and unexpected usage spikes such as during a ddos attack can drive costs through the roof. Subscription and vendor sprawl also introduce new layers of complexity in management.
The next wave: virtualized networking and security
The next frontier of this evolution is networking and security. Even before covid-19, the trend toward remote and hybrid work was gaining momentum. The pandemic accelerated it, making the concept of the modern workplace more critical than ever.
This is where Secure Access Service Edge (SASE) comes in. At Jimber, we believe SASE is the next wave of virtualization. Instead of relying solely on on-premise hardware and complex configurations, SASE delivers a software-defined network that securely connects users across locations.
With SASE, users do not just connect to the network, they connect to the services they need. Authentication and access are always enforced, ensuring security without sacrificing productivity. Whether resources are in the public cloud, private cloud, or on-premise, users gain secure, seamless access.
Why SASE matters
SASE streamlines what legacy solutions made complicated. Instead of juggling firewalls, nac systems, endless vlans, and a mess of vpn tunnels, organizations can unify networking and security under one framework.
The benefits are transformative:
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Simplified operations with fewer moving parts
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Reduced total cost of ownership by avoiding overlap
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Improved productivity as users work securely from anywhere
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Better security posture with consistent enforcement across all locations
Conclusion
Every era of computing has followed the same journey, from physical to virtual, from local to distributed. Networking and security are no exception. With SASE, we now have the opportunity to reduce chaos, cut costs, and increase productivity, while making security a natural part of the network rather than an obstacle.
At Jimber, we see SASE not just as another trend, but as the logical next step in the evolution of it. A step that empowers organizations to grow faster, work smarter, and worry less about their security.
