Prioritized Multi-Tenant Traffic Engineering for Dynamic QoS Provisioning in Autonomous SDN-OpenFlow Edge Networks

TL;DR

This paper presents a novel SDN-based dynamic QoS provisioning scheme for multi-tenant edge networks, enhancing traffic prioritization and bandwidth management in mobile edge scenarios, validated through empirical experiments.

Contribution

It introduces a flexible, scalable SDN-OpenFlow scheme for prioritized multi-tenant QoS management in edge networks, addressing limitations of existing proprietary traffic engineering tools.

Findings

Effective bandwidth allocation for priority flows

Improved QoS adherence in multi-tenant scenarios

Validated performance with Mininet and OpenDayLight

Abstract

This letter indicates the critical need for prioritized multi-tenant quality-of-service (QoS) management by emerging mobile edge systems, particularly for high-throughput beyond fifth-generation networks. Existing traffic engineering tools utilize complex functions baked into closed, proprietary infrastructures, largely limiting design flexibility, scalability, and adaptiveness. Hence, this study introduces a software-defined networking (SDN)-based dynamic QoS provisioning scheme that prioritizes multi-tenant network traffic while focusing on the base station-edge cloud scenario. The designed scheme first separates control and data planes and enables traffic management automation using SDN programmability. It then implements dynamic QoS management via the SDN-OpenFlow protocol, which ensures ample bandwidth for multiple priority flows and efficiently manages the remaining bandwidth for non-priority traffic. Empirical experiments are conducted with a Mininet network emulator and an OpenDayLight controller. Performance evaluation validates the proposed scheme's effectiveness in meeting multi-tenant QoS criteria, offering a robust solution for traffic prioritization in SDN-based edge networks.