Kranti Kumar Appari

Abstract

This paper proposes a novel Software-Defined Networking (SDN) and Network Function Virtualization (NFV) architecture for Internet of Things (IoT) environments leveraging Juniper Networks’ enterprise-grade components. Traditional IoT deployments face significant challenges including architectural rigidity, security vulnerabilities, and inconsistent Quality of Service (QoS), which become increasingly problematic as IoT applications expand into mission-critical domains. Our framework integrates Juniper Contrail for SDN control, virtualized security services through vSRX, and EX Series switches as intelligent IoT gateways to create a cohesive architecture addressing these challenges. We provide comprehensive empirical validation across multiple metrics, demonstrating that our implementation achieves 65% latency reduction for critical traffic, 99.5% attack detection rates with minimal false positives, and linear scalability supporting up to 10,000 connected devices with negligible