Gateway DNS Forwarding with Client Location Data
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Solution Overview
Problem
Current DNS systems often forward client requests to content servers that are not physically close to the client, leading to inefficiencies in data access and increased latency, as they rely on the location of regional DNS servers rather than the client's location for selecting content servers.
Innovation Solution
Implementing a dynamic DNS forwarding system that adds location information of the client to domain name requests, allowing regional DNS servers to select the most efficient content server based on the client's geographic and network location, thereby optimizing the selection of content servers for reduced latency and improved access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If current DNS systems forward client requests to content servers based on regional DNS server location, then the DNS resolution process is simple, but the content servers selected are not physically close to clients, leading to increased latency
Solution Approach 1:
The gateway performs preliminary actions by adding client location information to DNS requests before forwarding them to regional DNS servers. This allows the DNS system to proactively route requests to geographically appropriate servers, improving data access speed without requiring complex changes to the core DNS resolution process.
Solution Approach 2:
The gateway acts as an intermediary between the client and the DNS system. It intercepts DNS requests, adds location information, and forwards them to regional DNS servers. This intermediary approach enables location-based routing without modifying the DNS servers themselves, maintaining system simplicity while improving performance.
2Adaptability or versatility
If content servers are distributed across different geographic locations, then network coverage is improved, but selecting the appropriate server based on client location becomes more complex
Solution Approach 1:
The system applies local quality by adding location-specific information to DNS requests. Each client's geographic location is identified and attached to the request, enabling regional DNS servers to select content servers that are physically close to the client. This maintains network coverage across different locations while simplifying server selection through location-based routing.
3Productivity
If regional DNS servers select content servers without client location information, then the DNS resolution process is fast, but traffic bottlenecks occur at servers not optimally positioned for clients
Solution Approach 1:
The system changes the parameters of DNS requests by adding location information. This additional parameter enables regional DNS servers to make informed decisions about server selection, routing clients to geographically appropriate content servers. The result is reduced data propagation time and improved network efficiency without significantly impacting DNS resolution speed.
Data Source
AI summary
Disclosed example methods include receiving in a gateway a request to connect to a domain name from a client coupled to the gateway, selecting a first domain name system server corresponding to the domain name based on a rule linking the first domain name system server to the domain name, adding location information to the request in the gateway, the location information to be used by the first domain name system server to select a second domain name system server associated with the domain name, and transmitting the request including the location information to the selected first domain name system server.