Virtual Core File Handling for Scalable Remote PHY Packet Delivery
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Solution Overview
Problem
Existing Cable Modem Termination Systems (CMTS) face challenges in dynamically scaling line cards to meet increasing network demands and ensuring timely data packet delivery in real-time cable data distribution environments, particularly in virtualized systems using COTS servers and containers.
Innovation Solution
Implementing virtualized Remote PHY MAC Cores (vCores) on COTS servers with isolated CPU cores and dedicated network bandwidth, managed by a container orchestration system, to automate deployment, scaling, and resource allocation, ensuring timely data packet delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional CMTS with fixed line cards are used, then system stability is maintained, but the system cannot dynamically scale to meet increasing network demands
Solution Approach 1:
The patent segments the CMTS functionality into virtual line cards that can be independently created, configured, and scaled as separate software instances. Each virtual line card operates as an isolated container that can be dynamically provisioned without affecting other system components, enabling flexible scaling while maintaining system stability through modular architecture.
Solution Approach 2:
The patent implements a universal virtualization layer that allows a single physical CMTS platform to host multiple virtual line cards serving different service types and customer segments. This multi-functional approach enables the system to adapt to various network demands using a unified infrastructure, reducing the need for separate hardware for different services.
2Productivity
If more line cards are added to handle increased network demands, then processing capacity increases, but system complexity and resource management difficulty increase
Solution Approach 1:
The patent implements self-service capabilities where virtual line cards automatically discover available resources, configure themselves, and manage their own lifecycle operations. The system includes automated provisioning mechanisms that allow virtual line cards to dynamically allocate processing resources and network bandwidth without manual intervention, reducing management complexity while scaling capacity.
Solution Approach 2:
The patent incorporates feedback mechanisms that continuously monitor system resource utilization, packet processing performance, and line card health status. This real-time feedback enables dynamic resource allocation and automated scaling decisions, allowing the system to optimize processing capacity while maintaining manageable complexity through data-driven control.
3Adaptability or versatility
If virtualized vCores are implemented on COTS servers, then scaling flexibility improves, but ensuring timely data packet delivery becomes more challenging
Solution Approach 1:
The patent implements dynamic resource allocation mechanisms that continuously adjust CPU time slicing, memory allocation, and network bandwidth for virtual line cards based on real-time traffic conditions and service level requirements. This dynamic approach ensures that time-sensitive data packets receive appropriate processing priority while maintaining the flexibility benefits of virtualization on COTS servers.
Solution Approach 2:
The patent introduces a virtualization management intermediary layer that sits between the COTS server hardware and the virtual line cards. This intermediary handles resource virtualization, scheduling, and quality of service enforcement, ensuring timely packet delivery by mediating resource conflicts and prioritizing critical traffic while maintaining the scalability of the virtualized architecture.
Data Source
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AI summary
A head end connected to a plurality of customer devices through a transmission network includes a remote fiber node that converts received data to analog data suitable to be provided on a coaxial cable for the plurality of customer devices. The head end includes vCore instantiated on one of the servers that includes file handling.