Multi-address Space Mobile Network Architecture with DHT Registration
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Solution Overview
Problem
The existing Node ID network architecture faces inefficiencies in updating and querying host registration information, especially when hosts quickly switch between locator domains, leading to low update and query efficiency, and the network's extendibility is limited due to bottlenecks in route table capacity.
Innovation Solution
A multi-address space mobile network architecture that uses a distributed hash table (DHT) in the central network to store and update mapping relations between host IDs, CER IDs, and host locators, allowing hosts to acquire routable locators and send registration information through CERs, thereby improving update and query efficiency and reducing the need for frequent DNS lookups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If DNS recursive querying method is used to query host registration information, then the querying process can be completed, but the query efficiency is low due to multiple sequential queries from local DNS to ROOT DNS
Solution Approach 1:
The patent introduces a DHT (Distributed Hash Table) system as an intermediary between hosts and the traditional DNS system. The DHT stores mapping relations between host IDs and CER (Core Edge Router) identifiers in a distributed manner across multiple nodes, enabling direct peer-to-peer queries without sequential recursion through multiple DNS servers. This intermediary structure eliminates the time-consuming sequential query process while maintaining the functionality of host location resolution.
2Speed
If CERs store mapping relations between host IDs and host locators to enable fast data forwarding, then the data forwarding speed is improved, but the route table capacity becomes a bottleneck limiting network extendibility
Solution Approach 1:
The patent extracts the storage function of mapping relations from individual CERs and relocates it to a centralized DHT system. Instead of each CER maintaining its own route table with complete host mapping information, the DHT distributes the storage of mapping relations across multiple nodes. This extraction relieves the route table capacity constraint at individual CERs while preserving fast data forwarding capability through efficient DHT lookup operations.
Solution Approach 2:
The patent transitions from a centralized storage model at individual CERs to a distributed storage model across multiple DHT nodes. This dimensional change from single-node to multi-node architecture distributes the storage burden and increases network extendibility. The DHT system provides a scalable structure where mapping relations are stored across multiple dimensions of the network graph, avoiding the bottleneck of single CER route table capacity.
3Adaptability or versatility
If hosts quickly switch among locator domains, then the network mobility is improved, but the registration information update efficiency is low due to frequent DNS reregistration
Solution Approach 1:
The DHT system serves as an intermediary that handles host registration and location updates efficiently. When hosts switch among locator domains, the DHT enables direct update of mapping relations between host IDs and current CER identifiers without requiring frequent recursive DNS queries. The distributed nature of DHT allows parallel processing of registration updates across multiple nodes, significantly improving update efficiency during host mobility.
Data Source
AI summary
A multi-address space mobile network architecture is disclosed, in which edge networks (ENs) are connected to a core network (CN) through core edge routers (CERs). A distributed hash table (DHT) set in the CN is adapted to not only store or update a mapping relation between a CER ID and CER location information in the CN, but also receive registration information sent from a host through the CER, and store or update mapping relations between a host ID host identifier (HI) and the CER ID and between the HI and host location information. A method for registering host information includes the steps as follows. The host acquires routable host location information in an EN to which the host currently added and information of the CER in the EN. The host sends registration information to the CN through the CER in the EN. Further, a method for sending data is described. The network architecture and methods of the present invention may improve update and query efficiency of the registration information from the host.