Network Node Packet Format for IP and CCN Routing Compatibility
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Solution Overview
Problem
Current Internet Protocol (IP) routing methods are not compatible with content-centric networking (CCN) approaches, which rely on name-based routing, leading to inefficiencies in packet forwarding and content retrieval.
Innovation Solution
A communication method for network nodes that generates packets with a combination of location and content information, allowing for IP routing compatibility by including an IP address or unique identifier and a hierarchical name, enabling name-based content lookup and IP-based packet forwarding without the need for packet format conversion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If IP routing methods are used for content retrieval, then packet forwarding is efficient, but compatibility with content-centric networking is poor
Solution Approach 1:
The patent merges IP routing and content-centric routing by creating a unified packet format that contains both IP address information (for location-based routing) and hierarchical content names (for name-based routing). This allows a single packet structure to support both routing paradigms simultaneously, resolving the contradiction between forwarding efficiency and networking compatibility
Solution Approach 2:
The packet format is designed with multi-functionality to serve both IP-based and content-based routing systems. By incorporating multiple types of identifying information (IP addresses, hierarchical names, content identifiers) within a single packet structure, the system achieves universality that allows it to operate efficiently in both traditional IP networks and emerging content-centric networks
2Adaptability or versatility
If content-centric networking is implemented, then name-based routing is enabled, but packet forwarding efficiency decreases
Solution Approach 1:
The patent segments the routing information into distinct fields within the packet structure. Different segments (IP address fields, hierarchical name fields, content identifier fields) can be processed independently by different routing components, allowing name-based routing to operate without compromising overall forwarding efficiency. This segmentation enables parallel processing of multiple routing criteria
3Adaptability or versatility
If gateway conversion is used for IP and CCN compatibility, then routing compatibility is achieved, but system complexity increases
Solution Approach 1:
The patent extracts the conversion function from separate gateway devices and integrates it directly into the packet structure itself. By embedding multiple routing information types within the packet, the need for external gateway conversion is eliminated, reducing system complexity while maintaining compatibility. The packet structure itself becomes the mechanism for cross-paradigm communication
Data Source
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AI summary
A communication method of a network node for internet protocol (IP) routing compatibility, includes generating a packet including a name of a content that includes first information indicating a location of the content, and second information identifying the content, and transmitting the generated packet.