SD-WAN DNS Mapping for Cross-Region Traffic Scheduling
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Solution Overview
Problem
Data transmission across regions in traditional WAN architectures is inefficient, leading to delays and data loss due to incorrect data flow directions and lack of effective traffic scheduling, especially with the integration of cloud computing technologies.
Innovation Solution
Implementing a software-defined wide area network (SD-WAN) with a client of a security management application that includes a first processing module for domain name resolution, a second processing module for determining virtual network addresses, and a sending module to facilitate data transmission based on determined traffic destination addresses, utilizing a central domain name system and preset network segments to optimize traffic scheduling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional WAN architecture is used for cross-region data transmission, then network connectivity is maintained, but data transmission efficiency deteriorates due to incorrect data flow directions and lack of effective traffic scheduling
Solution Approach 1:
The patent implements preliminary domain name resolution before data transmission begins. The client resolves domain names to virtual network addresses in advance, establishing correct routing paths before actual data flow occurs. This prevents subsequent transmission delays and ensures data follows the optimal path from the start.
Solution Approach 2:
The patent introduces a virtual network address as an intermediary between the domain name and the actual network destination. This virtual address serves as a mediator that translates human-readable domain names into network-routable addresses, enabling proper traffic scheduling and directing data flows across regions efficiently through the SD-WAN architecture.
2Reliability
If domain name resolution is performed traditionally, then domain names can be resolved, but traffic scheduling effectiveness deteriorates due to lack of virtual network address mapping
Solution Approach 1:
The patent segments the network address mapping process into distinct components: domain name resolution, virtual network address assignment, and traffic scheduling. By dividing this complex process into manageable segments handled by different modules (domain name resolution module, virtual network address mapping module), the system achieves reliable traffic scheduling while managing complexity through modular architecture.
Solution Approach 2:
The patent changes the parameter representation from traditional physical network addresses to virtual network addresses. This parameter transformation enables flexible traffic scheduling by mapping domain names to virtual addresses that can be dynamically assigned to different network paths, improving reliability without requiring complex manual configuration of individual network routes.
Data Source
AI summary
The present disclosure provides a method of traffic scheduling implementation, including: receiving a domain name resolution request sent by a first business application on a first terminal device, and performing domain name resolution on the domain name resolution request to determine a to-be-resolved domain name; if the to-be-resolved domain name is a target domain name, determining, from a preset network segment, a first virtual network address corresponding to the to-be-resolved domain name, and using the first virtual network address as a first traffic destination address corresponding to the to-be-resolved domain name, where the preset network segment includes a plurality of virtual network addresses; and sending the first traffic destination address to the first business application on the first terminal device, to cause the first business application to perform data transmission based on the first traffic destination address.