P2P Peer Selection via Network Topology Trace Routing
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Solution Overview
Problem
In peer-to-peer (P2P) content distribution networks, the lack of locality information and network topology knowledge leads to non-optimal traffic flow, causing unnecessary load on expensive peering connections and longer download times for end-users due to suboptimal peer selection.
Innovation Solution
An automated system that determines peers with the requested content by tracing network routes, ordering common nodes by hop distance, and ranking peers associated with these nodes to recommend the most suitable peer for content transfer, thereby optimizing traffic localization and reducing network interconnectivity issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If peers are selected without network topology knowledge, then the system is simpler to operate, but traffic flow becomes non-optimal causing longer download times
Solution Approach 1:
The patent introduces a content server as an intermediary that performs trace routing and peer selection. The server traces the network path from the requesting peer to potential content holders and uses this topology information to select optimal peers, thereby reducing download time without requiring complex client-side implementation
Solution Approach 2:
The system performs trace routing and network topology analysis in advance before actual content transfer. By pre-determining the optimal peer based on network path analysis, the system prepares the connection setup in advance, reducing the time needed during actual data download
2Device complexity
If peers are selected without network topology knowledge, then the system requires less information processing, but peering connections experience unnecessary load
Solution Approach 1:
The content server acts as an intermediary that centralizes the information processing for trace routing and peer selection. This shifts the complexity from distributed peer selections to a centralized server, reducing the informational burden on individual peering connections while still achieving optimal traffic routing
Solution Approach 2:
The system uses feedback from trace routing results to make informed peer selection decisions. By analyzing the actual network path taken during tracing, the system gets feedback about network conditions and uses this to select peers that will minimize future traffic load on peering connections
Data Source
AI summary
Localizing network traffic using network topology is provided. A request for content is received from a first peer of a peer-to-peer (P2P) network having a plurality of peers. In response to receiving a request for content, one or more peers to receive the requested content in the P2P network are determined. One or more nodes in a trace route from the first peer to a predetermined address that are common to the trace route from the one or more peers to the predetermined address are determined. The one or more common nodes are ordered by hops from the first peer. At least one peer is selected from the ordered one or more common nodes to recommend to the first peer. The selected at least one peer is recommended to the first peer. The first peer then connects with the recommended at least one peer and receive the content.