Local Caching Device for Reducing Duplicate Network Traffic
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Solution Overview
Problem
The increasing demand for transmitting massive content over networks leads to a significant increase in traffic load due to duplicate content transmissions, resulting in deteriorated communication service quality.
Innovation Solution
A content transmission system comprising a central control device and a local caching device that identifies and minimizes duplicate content packets by registering chunk identifiers and flow information, allowing only necessary data to be transmitted, thereby reducing network traffic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If content packets are transmitted to multiple clients through the network, then content delivery service is provided, but duplicate transmissions increase network traffic load
Solution Approach 1:
The local caching device stores content packets in advance before they are requested by clients. When a client requests content, the local caching device can immediately provide it from its cache, avoiding duplicate transmissions from the content server through the network. This preliminary caching action eliminates the need for repeated content delivery over the network.
Solution Approach 2:
The local caching device acts as an intermediary between the content server and multiple clients. Instead of the content server directly transmitting content to each client (causing duplicates), the local caching device receives content once from the server and redistributes it to multiple clients locally, thereby eliminating duplicate network transmissions while maintaining content delivery service.
2Reliability
If duplicate content transmissions are allowed, then content availability is ensured, but communication service quality deteriorates
Solution Approach 1:
The local caching device pre-stores content packets in its cache memory before client requests arrive. This ensures that content is immediately available when clients request it, maintaining reliability without requiring duplicate transmissions. The content availability is guaranteed through the cached copy, eliminating the need for repeated content server transmissions that would degrade service quality.
3Quantity of substance
If content is cached at local device, then duplicate transmissions are reduced, but device complexity increases
Solution Approach 1:
The caching system is segmented into two distinct components: the local caching device with cache memory for storing content packets, and the central control device with logic for managing cache operations. This segmentation distributes complexity across separate components, allowing the local device to focus on simple caching operations while the central device handles the sophisticated logic of determining what to cache and when to serve from cache versus requesting from server.
Data Source
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AI summary
The present invention relates to a method for optimizing duplicated transmission traffic for reducing traffic on a network caused by a duplicated content transmission in a content transmission system, and to a central control device and to a local caching device. A content transmission system comprising a central control device connected to a content server and comprising a local caching device connected to a client on a content transmission network so as to monitor duplicated content transmission, can enable the local caching device or the central control device to check a duplication of a content packet chunk, enable the central control device to transmit only a chunk identifier and flow information to the local caching device since the content packet chunk provided from/by the content server to the client is checked for duplication, enable the local caching device to check the received chunk identifier and, if there is a matched chunk identifier, transmit the content packet stored in the local caching device to the client. Thus, the load of the network traffic transmitted in a duplicate manner between the Internet and a toll center can be reduced, thereby achieving the effects of network operation convenience and cost-effectiveness.