packet processing

Hybrid Fiber-Coaxial networks remain a critical broadband infrastructure, enabling high-speed Internet access for millions of users worldwide. However, as demand for low-latency, high-bandwidth applications such as cloud computing, 4K/8K streaming, and online gaming continues to grow, traditional packet processing architectures struggle to meet performance requirements due to high CPU utilization, inefficient transport-layer processing, and limited scalability.

This paper presents the comprehensive design and implementation of an RPD (Remote PHY Device) module, which serves as a pivotal component within the Remote PHY Node architecture for hybrid fiber-coaxial (HFC) networks based on the DOCSIS 4.0 standard. The development of this module addresses the critical need for enhanced data transmission rates and network efficiency in modern broadband communication systems.