Saturday, April 7, 2018

Network Slicing in 5G

Network slicing is a kind of virtual network architecture, which leverages the principles behind network functions virtualization (NFV) and software-defined networking (SDN). Network slicing allows telecom operators to slice a physical network into multiple virtual networks. From a mobile operator’s point of view, a network slice is an independent end-to-end logical network that runs on a shared physical infrastructure, capable of providing a negotiated service quality. The technology enabling network slicing is transparent to business customers. The virtual networks are then tailored to meet the needs of specific applications and services.

SDN and NFV will play vital role in network slicing. NFV provides the network functions like routing, firewall, load balancer etc. disaggregate from the dedicated OEM appliance and can be host on COTS hardware. The OEM dependency on supplying hardware, elasticity and faster time to market is the key to leverage NFV. SDN on the other hand is use to manage the network flows from the centralized controller sitting in data centers. The main role of the SDN is to provide on demand services without any kind of manual intervention.

5G is all about of providing connectivity to massive IOT devices (Industrial Slice or IOT Slicing), enhance Mobile Broadband for AI, ML and handling Video Traffic (Smartphone Slice) and providing access to low latency devices like Cars (Autonomous Driving Slice). Network Slicing can be achieved by using flex algo along with segment routing.

Network slicing will heavily be used in 5G networks to permit business customers to enjoy seamless connectivity and data processing tailored to the specific business requirements that adhere to a Service Level Agreement (SLA) agreed with the mobile operator. The customizable network capabilities include data speed, quality, latency, reliability, security, and services.

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