Home Node Context Management for ICN Name Resolution
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Solution Overview
Problem
In Information-Centric Networks (ICNs), traditional name resolution overlay servers face challenges in managing content producers and distributing content efficiently, leading to high network bandwidth usage and vulnerability to node failures, as they lack the capability to select the best content producer based on client criteria and contextual information.
Innovation Solution
A home node is designated within the network to maintain context information of content producers, acting as a virtual host for other nodes, which reduces network bandwidth by propagating context information only to the home node and allows for efficient content distribution based on calculated metrics such as path distance or time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional name resolution overlay servers are used to manage content producers and distribute content, then content distribution can be achieved, but network bandwidth usage increases and the system becomes vulnerable to node failures
Solution Approach 1:
The patent extracts the context information management function from traditional overlay servers and places it at the home node level. Each home node maintains context information locally for its subscribed content producers, eliminating the need for centralized name resolution servers and reducing network bandwidth usage while improving reliability through distributed storage
Solution Approach 2:
The patent implements local quality by having each home node maintain context information locally rather than centrally. This allows each node to independently manage its own content producer context, reducing network traffic and improving system reliability through distribution
2Ease of operation
If context information is propagated to all nodes in the network, then content distribution is enabled, but update message overhead increases
Solution Approach 1:
The patent extracts the context information propagation scope from network-wide to home-node-specific. Context information is only propagated to the home node that subscribes to specific content producers, not to all nodes in the network, thereby significantly reducing update message overhead while maintaining content distribution capability
Solution Approach 2:
The patent implements local quality by having context information propagated only to relevant home nodes based on their subscription interests, rather than broadcasting to all nodes. This selective propagation reduces unnecessary message overhead while preserving distribution functionality
3Loss of information
If traditional overlay servers manage content producers, then name resolution is achieved, but the system lacks capability to select best content producer based on client criteria
Solution Approach 1:
The patent segments the name resolution function from a centralized overlay server and distributes it to individual home nodes. Each home node independently performs name resolution for its subscribed content producers, enabling both name resolution capability and the flexibility to select best content producers based on local client criteria and contextual information
Solution Approach 2:
The patent implements self-service by enabling home nodes to autonomously perform name resolution and content producer selection based on their own subscriptions and local contextual information, without relying on centralized overlay servers. This provides both name resolution capability and adaptability to select best content producers
Data Source
Figure 1
Figure 2A
Figure 2B~2C
AI summary
The disclosure relates to technology for classifying a node in a network. Content published from one or more content producers in the network is received by the node comprising sufficient storage and processing capability to store and process the content received. IT is then determined whether the node can receive additional content that is published for one or more other nodes in the network. A metric is calculated for paths from the node to each of the one or more content producers in the network in response to determining that additional content can be received by the node. The node is classified as a home node in the network in response to determining that the metric for paths of the node is shorter than a metric for paths of each of the one or more other nodes in the network.