A QOS based content distribution network

A content distribution and content technology, applied in data exchange networks, network data retrieval, network data indexing, etc., can solve the problems of data quality loss, bandwidth limitation, and inability to flow data on the Internet.

Inactive Publication Date: 2003-11-05
AEROCAST COM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, the Internet is a poor network for this type of broadcast because: there is a loss of data quality for each of the many possible retransmissions; most transmissions have bandwidth constraints; and the Internet cannot stream data at a constant data rate

Method used

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  • A QOS based content distribution network
  • A QOS based content distribution network
  • A QOS based content distribution network

Examples

Experimental program
Comparison scheme
Effect test

other Embodiment approach

[0031] Other implementations may have multiple Active Directories. Users of the system can be divided among multiple active directories in order to distribute the load. Additionally, other Active Directories can be used redundantly so that if one Active Directory goes offline, the other Active Directory can absorb the load.

[0032] In some implementations, the origin server 108 provides sources of content objects, directs users to preferred sources of content objects, and provides directory information to the active directory 104 . The origin server 108 introduces content objects to the system 100 . Introduction involves selection by an origin server administrator of content objects to be made available to Active Directory 104 . A manager may be a person or system that manages origin server 108 . A content object may include previously stored information or a streaming feed of information. On a predetermined basis, origin server 108 provides a catalog of selected informat...

other Embodiment approach

[0091] Other embodiments may transmit metadata in any type of data channel, not just through HTTP headers. For example, metadata can travel through dedicated ports, IP addresses, URLs, headers, or other logical channels.

[0092] Preference information 512 is the result of network analysis performed from the perspective of client computer 112 . When a content object is requested, preference information 512 is passed to content object manager 312, which in turn selects an appropriate content exchange 116 for client computer 112. The preference information 512 may be updated periodically (eg, every hour) by automatic testing or manually by the user. Subsequent tests take into account previous results in order to efficiently consider preferred content exchanges. For example, a first analysis may examine 100 content exchanges, while subsequent analyzes may exclude poorer performing content exchanges so that only 50 are analyzed.

[0093] Preference information 512 includes a li...

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Abstract

The present invention relates to distributing content objects to client computers. One implementation includes a server, a first content cache, a second content cache, and a preference table. The first server is at a first address and the second server is at a second address. The server includes content objects to be copied into the first and second content caches. The preference list sent from the client computer includes at least one of the first and second addresses.

Description

technical field [0001] The present invention relates generally to content distribution, and more particularly to improving quality of service (QOS) in distributing content over the Internet. Background technique [0002] In order to provide sufficient QOS, it is required to deliver large content objects of high quality at a constant minimum rate. A live video broadcast is a good example of a large content object delivered at a constant minimum rate. Unfortunately, the Internet is a poor network for this type of broadcast because: there is a loss of data quality for each of the many possible retransmissions; most transmissions have bandwidth constraints; and the Internet cannot stream data at a constant data rate. [0003] As mentioned above, transferring large objects at a constant data rate without loss of information is problematic. To address these concerns, the streaming media is fully downloaded to a local hard drive for later playback. Playback from a local hard dr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/00G06F13/00G06F15/00G06F17/30H04L12/56H04L29/06H04L29/08H04L29/12
CPCG06F2216/09H04L45/125H04L45/30H04L47/125H04L63/0281H04L63/0428H04L63/08H04L63/101H04L65/80H04L67/1008H04L67/1029H04L67/101H04L67/14H04L67/288H04L69/24H04L69/329G06F16/9574G06F16/951H04L67/10015H04L61/4552H04L61/4511H04L61/5069H04L2101/604H04L2101/663H04L65/611H04L67/1001H04L67/56H04L67/568H04L67/63H04L9/40H04L69/32H04L65/1101H04L67/01
Inventor 内森·F·拉希博斯基马克·R·汤普森
Owner AEROCAST COM INC
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