SD-WAN Gateway Dynamic ISP Session Routing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing SD-WAN technologies fail to dynamically transition session-based connections between internet service providers (ISPs) based on changing ISP performance, leading to suboptimal network traffic routing.
Innovation Solution
A method is implemented in a network gateway to monitor dynamic communication quality of multiple ISPs and transition session-based connections to the best performing ISP, ensuring optimal routing based on current performance metrics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If network gateways maintain connections on initially chosen ISPs, then connection stability is preserved, but network performance deteriorates when ISP conditions change
Solution Approach 1:
The patent implements dynamic connection management where the network gateway continuously monitors ISP performance metrics (latency, packet loss, bandwidth) and transitions connections between ISPs based on current conditions. This dynamic approach allows the system to adapt to changing network conditions while maintaining connection stability through proper session management and handover protocols.
Solution Approach 2:
The system employs feedback mechanisms by continuously monitoring ISP performance and using this information to make intelligent routing decisions. The gateway receives performance data from multiple ISPs, evaluates it against connection requirements, and adjusts connection routing accordingly, creating a closed-loop control system that optimizes both stability and performance.
2Loss of energy
If SD-WAN uses lower-cost Internet access, then cost is reduced, but network performance may be inconsistent
Solution Approach 1:
The patent changes the operational parameters of network connections by dynamically adjusting which ISP is used based on performance metrics. The system monitors parameters such as latency, packet loss, and bandwidth utilization, and transitions connections between ISPs to maintain optimal performance while utilizing cost-effective broadband internet access as the primary transport.
Solution Approach 2:
The system creates a composite network architecture that combines multiple transport services (MPLS, LTE, broadband internet) into a unified SD-WAN fabric. This composite approach allows the network to leverage the cost advantages of broadband internet while maintaining performance consistency through intelligent routing and the ability to failover to alternative transports when needed.
3Reliability
If connections are transitioned between ISPs based on performance, then network performance is optimized, but connection stability may be affected
Solution Approach 1:
The patent implements preliminary actions by establishing backup connection paths and pre-configuring handover protocols before performance degradation occurs. The system maintains ready-state connections to alternative ISPs and pre-establishes the mechanisms needed for seamless transitions, minimizing disruption when switching is required.
Solution Approach 2:
The system provides cushioning against connection instability by implementing graceful handover mechanisms that maintain connection state during transitions. The gateway buffers and manages session information to ensure continuous connectivity during ISP transitions, cushioning the impact of switching on application performance and user experience.
Data Source
AI summary
A method and network gateway are provided for routing network traffic between internet service providers (ISPs) based on dynamic communication quality of the ISPs. Dynamic communication quality of the ISPs are monitored and compared by processor circuitry of the network gateway. When a session-based connection is being transmitted on an ISP having dynamic communication quality that does not meet a required communication quality of the connection, the processor circuitry transitions the session-based connection to an ISP meeting the required communication quality of the connection.