Persistent IP Tunnel for CCN Packet Routing
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Solution Overview
Problem
Current networking technologies, particularly IP networking, face limitations in scalability, performance, and cost, prompting the need for alternative approaches like Content-Centric Networking (CCN) that can enhance network efficiency and reduce costs.
Innovation Solution
A system and method that enables communication using CCN by establishing a persistent IP tunnel between nodes, allowing for the transmission of CCN packets and incorporating identifiers to facilitate decoding by downstream nodes, thereby integrating CCN with existing IP networking infrastructure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If IP networking is used, then network infrastructure is maintained and devices can communicate, but scalability and performance are limited
Solution Approach 1:
The patent segments the network communication into two distinct layers: IP-based transport layer for infrastructure compatibility and CCN layer for content-centric operations. This segmentation allows the system to maintain IP networking benefits while implementing CCN functionality, thereby improving scalability without sacrificing performance
Solution Approach 2:
The patent introduces an intermediary mechanism (IP tunnel with encapsulation) that bridges IP networking and CCN protocols. The tunnel acts as a mediator, allowing CCN packets to be transmitted over IP infrastructure, thus enabling both IP compatibility and CCN performance benefits simultaneously
2Adaptability or versatility
If CCN is implemented directly without IP tunnel, then network performance and scalability improve, but compatibility with existing IP infrastructure is lost
Solution Approach 1:
The IP tunnel serves as an intermediary layer that simplifies integration by providing a standardized interface between existing IP infrastructure and new CCN implementations. This mediator approach reduces integration complexity while maintaining network efficiency
Solution Approach 2:
The patent implements a universal communication framework where the IP tunnel can carry both traditional IP traffic and CCN packets. This multi-functionality allows existing infrastructure to support both legacy and next-generation protocols, reducing integration complexity while improving efficiency
3Adaptability or versatility
If persistent IP tunnel is established, then CCN packet transmission is enabled over IP network, but additional overhead and complexity are introduced
Solution Approach 1:
The patent establishes the IP tunnel in advance before CCN communication begins. This preliminary action ensures that the tunnel is ready for immediate use, reducing runtime complexity while maintaining protocol compatibility
Solution Approach 2:
The persistent nature of the tunnel ensures continuous availability for CCN packet transmission. Once established, the tunnel remains active, eliminating the need for repeated setup procedures and reducing overall management complexity
Data Source
AI summary
Methods, systems, and devices for Content-Centric Networking (CCN) are described. In some cases, a node may receive a CCN packet from an upstream node and communicate the CCN packet to one or more downstream nodes (e.g., that previously requested the CCN packet). In a first case, the node may establish a persistent internet protocol (IP) tunnel with the downstream node and communicate the CCN packet to the downstream node by the persistent IP tunnel. Here, a cable modem between the node and the downstream node may not decode the CCN packet. In a second case, the node may append an identifier to the CCN packet prior to communicating the CCN packet to the one or more downstream nodes. Here, the identifier may indicate to the downstream nodes which CCN packets are relevant to the downstream node.