importance of network security level

 Networking is ever present. Every business needs it from day one. Mobile devices and cloud services depend on it, and IoT devices are mission critical. Nearly every house or apartment has a router and devices communicating with the outside world. Given the proliferation of networked devices, people assume that networking is already a solved problem. But when your network starts behaving erratically, you realize networking is still difficult. Why?


The flawed promise of public protocols
A network with all its component parts purchased from the same company is extraordinarily uncommon. Modern networking enables hardware from different vendors to interoperate — in theory.

There are several flaws in that vision.

Public protocols are so flexible that people make hardware do things the writers never anticipated.
The protocol definitions can have design flaws or errors in protocols and specifications. For instance, vendors implementing DNS make slightly different choices and those devices may not interoperate.
Some protocol specifications are too expensive or not available due to proprietary elements. As a consequence, they are not reviewed as thoroughly as they should be.

With protocols running over the same media, details can interact unexpectedly, causing network issues.

Technology is changing… rapidly
Advances in technology that make networking powerful also add layers of complexity and volatility. There is a broad marketplace of vendors hoping to benefit from changes in technology. But the fast release cycle means updated networking products might not be tested properly.

Organizations who don’t leverage the new technologies risk losing a competitive edge. Their network architectures are morphing as they adapt to mobility, BYOD, the cloud, and IoT. Concern about bandwidth is now coupled with worries about availability and security for mission-critical systems.

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