Software Defined Hybrid Networking PoP Traffic Routing
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Solution Overview
Problem
As more services and data migrate to cloud systems, managing separate private and public networks becomes increasingly complex, requiring efficient traffic management and quality-of-service (QoS) policies across distributed sites.
Innovation Solution
The implementation of software-defined hybrid private and public networking, where points-of-presence (PoPs) dynamically manage network circuits and traffic routing based on entity-defined policies, automatically configuring and prioritizing traffic across private and public networks, reducing the overhead of managing separate circuits and policies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate private and public networks are maintained for different traffic types, then traffic separation and prioritization are achieved, but network management complexity increases
Solution Approach 1:
The patent merges separate private and public network management into a unified SDN controller that handles both network types through a single interface. The controller consolidates routing, QoS, and policy management for hybrid networks, reducing the number of separate management systems needed while maintaining traffic separation through virtualization techniques.
Solution Approach 2:
The SDN controller acts as an intermediary between network infrastructure and management functions. It introduces a centralized control plane that mediates between diverse traffic types (private/public, secured/unsecured) and the underlying network infrastructure, simplifying management by abstracting complexity from edge devices.
2Adaptability or versatility
If cloud services are accessed via public network, then service availability improves, but traffic management difficulty increases
Solution Approach 1:
The patent implements dynamic traffic steering that automatically adjusts routing decisions based on real-time conditions. The SDN controller dynamically selects between private and public network paths for cloud services, adapting to changing network states, service requirements, and policy constraints without manual intervention.
Solution Approach 2:
The system changes routing parameters dynamically based on traffic type, service requirements, and network conditions. The SDN controller modifies routing tables, QoS parameters, and policy rules in real-time to optimize cloud service access while maintaining proper traffic separation and management.
3Reliability
If multiple network circuits are provisioned for different entities, then service quality is maintained, but configuration overhead increases
Solution Approach 1:
The SDN controller provides universal management capabilities that handle multiple entity requirements through a single platform. It implements multi-tenancy features allowing different entities to share the same infrastructure with isolated virtual networks, maintaining service quality while reducing per-entity configuration overhead.
Solution Approach 2:
The system performs preliminary configuration actions by pre-establishing template-based network policies and routing rules. The SDN controller pre-configures QoS parameters, security policies, and routing tables based on service templates, reducing on-demand configuration time and overhead when new entities or services are added.
Data Source
AI summary
Disclosed is a system comprised of different points-of-presence (“PoPs”) that provide software defined hybrid private and public networking for different entity sites. A system PoP may establish and/or maintain different network circuits for accessing different destinations or services. The system PoP may receive a tunnel creation request from a particular site, may obtain entity-defined policies that are specified for the particular site, and may establish a particular network tunnel to the particular site. The system PoP may then route egress traffic with a first classification through a first network circuit with a different quality of service (“QoS”) than egress traffic with a second classification according to the policies. Similarly, the system PoP may route ingress traffic arriving over the first network circuit through the particular network tunnel with a different QoS than ingress traffic arriving over the second network circuit according to the policies.