Symmetry-Aware SFC Framework for 5G Networks

Network Function Virtualization (NFV), network slicing, and Software-Defined Networking (SDN) are the key enablers of fifth generation mobile networks (5G). Service Chaining (SFC) plays a critical role in delivering sophisticated service per slice enables traffic traversal through set ordered Functions (SFs). In fully symmetric SFCs, uplink downlink traverse same SFs, while asymmetric SFC, reverse-path may not necessarily cross SFs reverse order. Proposed approaches literature support either full symmetry or no symmetry. this article, we discuss partial concept that enforces path to only when needed. Our contribution is threefold. First, propose novel SFC framework with an abstraction layer can dynamically create SFCs across multiple administrative technological cloud/edge domains. According Key Performance Indicators (KPIs) desired objectives specified at intent request, would automatise different operations, but specifically generating SFCs. Second, algorithm calculate for by including requiring Third, implement prototype application test performance algorithm. The obtained results show advantages reducing both delivery time load on VNFs.