what is network slicing
Network slicing is a 5G capability that lets a single physical network be divided into multiple separate, virtual networks, each independently configured and tuned for a different kind of application, all running on the same shared underlying infrastructure.
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{ "title": "One shared physical 5G network infrastructure", "sub": "different applications have very different needs", "tone": "neutral" }
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{ "title": "Each slice configured for its specific application", "sub": "speed, latency, and reliability tuned independently", "tone": "blue" }
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**Network slicing exists because a single one-size-fits-all network configuration can't serve wildly different application needs equally well at the same time.** A network optimized purely for maximum data throughput isn't necessarily well-suited for an application demanding extremely low, consistent latency, and vice versa; network slicing solves this by dividing one shared physical network into multiple independent virtual slices, each configured with its own specific performance characteristics, letting very different applications each get network behavior tuned to their own particular needs, all from the same underlying infrastructure.
```svg
```
```svg
```
| Aspect | Single shared configuration | Network slicing |
|---|---|---|
| Performance tuning | One-size-fits-all | Tuned per slice, per application |
| Isolation between uses | Limited | Slices operate independently |
| Physical infrastructure | One network | Still one, virtually divided |
| Common use | Simpler deployments | Mixed applications with different needs |
**Network slicing lets very different application types, such as high-throughput mobile broadband, ultra-low-latency industrial control, and massive numbers of low-power IoT devices, all be served well from the same underlying 5G infrastructure.** Rather than requiring separate physical networks for applications with fundamentally different requirements, network slicing lets a mobile broadband slice prioritize raw throughput, an industrial control slice prioritize extremely low and consistent latency, and an IoT-focused slice prioritize efficiently handling huge numbers of simple, low-power devices — all running simultaneously on one shared physical network.
**Implementing network slicing depends heavily on network virtualization technology, since slices need to behave as genuinely independent networks despite sharing the same physical hardware.** Because each network slice needs its own effectively independent behavior and performance characteristics, network slicing relies on virtualization technology that logically separates network functions and resources, allowing multiple slices to operate independently without interfering with each other, even though they're all ultimately running on the same shared physical network equipment.
**Network slicing gives network operators a practical tool for supporting entirely new categories of customers and use cases without needing to build separate dedicated networks for each one.** Rather than each new specialized use case, like a factory's private industrial network or a specific enterprise application, requiring its own dedicated physical network infrastructure, network slicing lets operators offer a custom-tuned virtual slice instead, making it a significant tool for supporting an increasingly diverse range of 5G applications and business customers.
Read network slicing through a shared-highway-with-dedicated-lanes lens: rather than building an entirely separate road for every different kind of traffic, network slicing carves the same shared highway into dedicated lanes, each tuned for its own specific kind of traffic, letting very different needs all be served well from one underlying road.