Network slicing in transport — FlexE and VPN

Transport Slicing Overview

End-to-end network slicing requires slice isolation not only in the RAN and core but also across the transport network connecting them. Transport slicing creates dedicated virtual networks within the shared physical infrastructure, each with guaranteed bandwidth, bounded latency, and fault isolation. Two fundamental approaches exist: hard slicing provides deterministic resource partitioning at the physical or TDM level, while soft slicing uses traffic engineering and QoS mechanisms to provide statistical isolation. The choice between hard and soft slicing depends on the slice SLA requirements…