Peer-to-Peer Overlay Network Discovery via Local Area Multicast
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Solution Overview
Problem
Existing methods for discovering peer-to-peer overlay networks are inefficient, making it difficult for nodes to join specific networks without server-based infrastructure.
Innovation Solution
A peer-to-peer overlay network discovery system that uses local area transport mechanisms like IP multicast to gather information about overlay networks from other nodes, allowing nodes to transmit search queries with specific parameters and receive meta-data for joining networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional discovery methods (web search, DNS) are used to find overlay networks, then nodes can discover network names, but the process is inefficient and complex
Solution Approach 1:
The patent introduces local area network transport mechanisms (IP multicast, broadcast, unicast) as intermediaries between nodes seeking to discover overlay networks and nodes that have information about these networks. This intermediary communication layer simplifies the discovery process by providing direct peer-to-peer information exchange without requiring external web search or DNS infrastructure.
Solution Approach 2:
Nodes in the network autonomously maintain and share overlay network information databases without requiring centralized server infrastructure. Each node can independently query local nodes for overlay network information and contribute its own knowledge to the collective network awareness, enabling self-organizing discovery.
2Ease of operation
If a well-known super overlay network is used for discovery, then nodes can query for overlay network information, but this approach is inefficient and requires joining an additional network
Solution Approach 1:
The patent extracts the discovery function from the overlay network itself and implements it at the lower network layer using local area transport mechanisms. This separation allows nodes to discover overlay networks without needing to join or traverse a super overlay network, eliminating the inefficiency of indirect discovery through an intermediate network layer.
Solution Approach 2:
Instead of nodes joining a super overlay network to discover other overlay networks (top-down approach), the patent inverts the approach by having nodes query local area network neighbors directly for overlay information (bottom-up approach). This inversion eliminates the need to join additional networks for discovery purposes.
3Loss of information
If out-of-band mechanisms like web search are used, then nodes can find overlay network names, but this increases external dependency and complexity
Solution Approach 1:
The patent merges the overlay network information database with the local area network communication infrastructure. By combining overlay network metadata storage and sharing with existing LAN transport mechanisms, the system eliminates the need for separate out-of-band discovery mechanisms like web search, reducing both external dependencies and overall system complexity.
Data Source
AI summary
Methods and apparatus for discovery of peer-to-peer overlay networks. In an aspect, a method includes receiving a request to discover information about overlay networks of interest, generating a search query that comprises at least one parameter associated with the overlay networks of interest, and transmitting the search query to nodes on a local area network. In another aspect, an apparatus includes a memory comprising an overlay database of meta-data associated with one or more known overlay networks and a processor coupled to the memory and configured to obtain a search query that comprises at least one parameter associated with overlay networks of interest, determine one or more selected overlay networks from the overlay database based on the at least one parameter, and transmit meta-data associated with the one or more selected overlay networks in response to the search query.