CONTENT TRANSMITTING SYSTEM, METHOD FOR OPTIMIZING NETWORK TRAFFIC IN THE SYSTEM, CENTRAL CONTROL DEVICE AND LOCAL CACHING DEVICE

摘要

A content transmission system includes: a central control device to receive a content packet to be provided to a client device from a content server, store chunks divided from the received content packet together with corresponding chunk identifiers, check duplication of the divided chunks, and transmit the chunk identifier and flow information of a duplicate chunk to a local caching device instead of transmitting the content packet corresponding to the duplicate chunk; and the local caching device to: receive the chunk identifier and the flow information of the duplicate chunk from the central control device, and transmit the content packet corresponding to the received chunk identifier and previously stored to the client device.

主权项

1. A content transmission system, comprising:
a central control device configured to
receive a content packet to be provided to a client device from a content server, and transmit the received content packet to a local caching device;receive a chunk identifier and flow information of a duplicate chunk of the content packet from the local caching device, and register the chunk identifier and the flow information as duplication-removal targets; andreceive a next content packet from the content server, and transmit only the chunk identifier and the flow information of the next content packet to the local caching device; and the local caching device configured to
receive the content packet from the central control device, store chunks divided from the received content packet together with corresponding chunk identifiers, check duplication of the divided chunks, and transmit the chunk identifier and the flow information of the duplicate chunk to the central control device; andreceive the chunk identifier and the flow information from the central control device, and transmit the content packet corresponding to the received chunk identifier to the client device.