Dynamic Load Distribution in Private Network Routers
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Solution Overview
Problem
Existing data routing methods in private networks are inadequate in ensuring high-quality data transmission to external networks, as they lack flexibility and often require modifications to access gateways and external equipment, which are beyond the control of private network managers.
Innovation Solution
A dynamic load distribution method that involves a reliability test of access to the external network via a reference gateway, considering the availability of DNS servers and bandwidth, to optimize data routing and avoid degraded transmission quality caused by external factors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple access gateways are deployed to improve transmission quality and provide redundancy, then reliability and throughput are improved, but device complexity and cost increase
Solution Approach 1:
The patent combines multiple access gateways into a unified load distribution system where a router intelligently directs traffic to multiple gateways based on real-time conditions. This merging approach achieves redundancy and improved reliability without requiring each gateway to operate independently, thus managing complexity through centralized control.
Solution Approach 2:
The patent implements dynamic load distribution that continuously monitors gateway status, DNS server availability, and bandwidth conditions to adaptively route traffic. This dynamic approach allows the system to respond to changing conditions in real-time, maintaining high reliability without static complex configurations.
2Productivity
If traditional routing protocols (GLBP, CARP, OSPF, EIGRP) are used to distribute traffic, then load balancing is achieved, but flexibility is limited due to inability to account for DNS server availability and external network conditions
Solution Approach 1:
The patent incorporates feedback mechanisms that monitor DNS server responsiveness, gateway status, and network conditions. This feedback loop enables the routing system to make informed decisions about traffic distribution, adapting to external conditions that traditional protocols cannot detect or respond to.
Solution Approach 2:
The patent performs preliminary reliability tests by checking DNS server availability and gateway status before directing traffic. This preliminary action ensures that traffic is only routed to gateways with functional DNS infrastructure, preventing transmission failures before they occur.
3Adaptability or versatility
If access gateways are modified to support advanced routing protocols, then routing flexibility improves, but ease of operation deteriorates since gateways are controlled by external access providers
Solution Approach 1:
The patent introduces a router as an intermediary that implements the intelligent routing logic without requiring modifications to the access gateways. This mediator approach allows advanced routing capabilities to be achieved while maintaining compatibility with externally controlled gateways that cannot be modified.
4Productivity
If traffic is distributed without considering DNS server availability, then throughput is maximized, but reliability deteriorates due to failed domain name resolution
Solution Approach 1:
The patent performs preliminary checks of DNS server availability before including gateways in the load distribution pool. This preliminary action ensures that only gateways with functional DNS infrastructure receive traffic, preventing resolution failures while maintaining high throughput through available gateways.
Data Source
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AI summary
A dynamic load balancing method is proposed in a private network (PR) comprising at least one router (R1-R8) and a plurality of access gateways (P1-P5) to an external network (ER), each gateway offering a route to the external network (ER) and being associated with at least one domain name server (DNS) involved in the transmission in the external network (ER) of data from the gateway, the method being characterized by the following steps: - reliability test of access to the external network (ER) via a reference gateway, the reliability test including an availability test (202) of at least one DNS server associated with the reference gateway, - distribution (302) on said routes and transmission (303), by the router, of data to the external network (ER), according to the results of the reliability test.