WO2019162728A1 - Intelligent content delivery network - Google Patents

Intelligent content delivery network Download PDF

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Publication number
WO2019162728A1
WO2019162728A1 PCT/IB2018/051172 IB2018051172W WO2019162728A1 WO 2019162728 A1 WO2019162728 A1 WO 2019162728A1 IB 2018051172 W IB2018051172 W IB 2018051172W WO 2019162728 A1 WO2019162728 A1 WO 2019162728A1
Authority
WO
WIPO (PCT)
Prior art keywords
chunk
network
edge
client
router
Prior art date
Application number
PCT/IB2018/051172
Other languages
French (fr)
Inventor
Pratik Sharma
Original Assignee
Pratik Sharma
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pratik Sharma filed Critical Pratik Sharma
Priority to PCT/IB2018/051172 priority Critical patent/WO2019162728A1/en
Publication of WO2019162728A1 publication Critical patent/WO2019162728A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/74—Address processing for routing
    • H04L45/742—Route cache; Operation thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/12—Avoiding congestion; Recovering from congestion
    • H04L47/125—Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols

Definitions

  • a content delivery network which is a geographically distributed network of proxy servers running on different edge routers connected to their data centres for delivering live streaming media, on-demand streaming media and other applications.
  • edge caching by storing chunked replicas of image, audio, video content etc. at the edge of the client network in the proxy server or router rather than at a far-off origin server.
  • the server divides streaming data into fixed sized chunks and distributes them among the closest possible network of routers to the client or set of clients.
  • the client will send an IPv4 (Internet Protocol version 4) packet with the Differentiated Services Code Point for differentiated services set to a value for real-time data streaming and use the Acknowledgement number or ACK flag field in the TCP packet header for the chunk identified starting with zero and wrap around when it reaches the maximum) and retrieve the chunk of media content.
  • IPv4 Internet Protocol version 4
  • IPv6 IPv6(Intemet Protocol version 6) packet with the Differentiated Services field set to a value to indicate real-time streaming and use the Acknowledgement number or ACK flag field in the TCP packet header for the chunk identifier(starting with zero and wrap around when it reaches the maximum) and retrieve the chunk of media content.
  • the edge router When the IPv4 or IPv6 packet reaches the edge router it parses the TCP/IP header to look for the chunk identifier and does a look up in the routing table to check if it has the chunk or not. If it has the chunk then it is delivered to the client or else the edge router notifies to another router in the network handling the chunked media to forward those chunks to it which in turn forwards it to the client as each edge router in the network knows what chunk identifier range is handled by which routers or proxy servers in the network. After the chunk has been delivered the appropriate router (sender of chunked media) receives the
  • the edge router in the network checks for the first chunk of media content when it receives the packet and does routing based on that till it reaches the edge router in the network which has that chunk.
  • the edge routers also maintain the count of clients which have consumed the chunk. If the number of clients consuming the chunk have reached a threshold(platform capacity to handle the number of client requests by the network of edge routers) then we start removing those chunks and update the routing table, and the server adds next set of consecutive chunks to those edge routers.
  • a timer event is fired after x seconds which purges those chunks from the edge router and also updates the routing table.
  • the routing tables of all edge routers in the network can be updated together in batches for range of chunks it has by removing all entries after timeout and update each routing table in the edge router separately for the newly added chunks in them by the origin server.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

Here we use edge caching by storing chunked replicas of image, audio, video content etc. at the edge of the client network in the proxy server or router rather than at a far-off origin server. When the IPv4 or IPv6 packet reaches the edge router it parses the TCP/IP header to look for the chunk identifier and does a look up in the routing table to check if it has the chunk or not. If it has the chunk then it is delivered to the client or else the edge router notifies to another router in the network handling the chunked media to forward those chunks to it which in turn forwards it to the client as each edge router in the network knows what chunk identifier range is handled by which routers or proxy servers in the network.

Description

Intelligent Content Delivery Network
In this invention we have a content delivery network which is a geographically distributed network of proxy servers running on different edge routers connected to their data centres for delivering live streaming media, on-demand streaming media and other applications. Here we use edge caching by storing chunked replicas of image, audio, video content etc. at the edge of the client network in the proxy server or router rather than at a far-off origin server. The server divides streaming data into fixed sized chunks and distributes them among the closest possible network of routers to the client or set of clients. The client will send an IPv4 (Internet Protocol version 4) packet with the Differentiated Services Code Point for differentiated services set to a value for real-time data streaming and use the Acknowledgement number or ACK flag field in the TCP packet header for the chunk identified starting with zero and wrap around when it reaches the maximum) and retrieve the chunk of media content. Similarly the client can also send an IPv6(Intemet Protocol version 6) packet with the Differentiated Services field set to a value to indicate real-time streaming and use the Acknowledgement number or ACK flag field in the TCP packet header for the chunk identifier(starting with zero and wrap around when it reaches the maximum) and retrieve the chunk of media content. When the IPv4 or IPv6 packet reaches the edge router it parses the TCP/IP header to look for the chunk identifier and does a look up in the routing table to check if it has the chunk or not. If it has the chunk then it is delivered to the client or else the edge router notifies to another router in the network handling the chunked media to forward those chunks to it which in turn forwards it to the client as each edge router in the network knows what chunk identifier range is handled by which routers or proxy servers in the network. After the chunk has been delivered the appropriate router (sender of chunked media) receives the
Acknowledgement for the same and prepares to send the next chunk or chunks to the client if within its range or notify to another router in the network handling the new range of chunked media to forward those chunks to it which in turn forwards it to the client. The edge router in the network checks for the first chunk of media content when it receives the packet and does routing based on that till it reaches the edge router in the network which has that chunk. The edge routers also maintain the count of clients which have consumed the chunk. If the number of clients consuming the chunk have reached a threshold(platform capacity to handle the number of client requests by the network of edge routers) then we start removing those chunks and update the routing table, and the server adds next set of consecutive chunks to those edge routers. Also if clients stop streaming and the count of chunks consumed have not reached the threshold and is not incrementing then a timer event is fired after x seconds which purges those chunks from the edge router and also updates the routing table. Here the routing tables of all edge routers in the network can be updated together in batches for range of chunks it has by removing all entries after timeout and update each routing table in the edge router separately for the newly added chunks in them by the origin server.

Claims

Claims Following is the claim for this invention: -
1 . In this invention we have a content delivery network which is a geographically distributed network of proxy servers running on different edge routers connected to their data centres for delivering live streaming media, on-demand streaming media and other applications. Here we use edge caching by storing chunked replicas of image, audio, video content etc. at the edge of the client network in the proxy server or router rather than at a far-off origin server. The server divides streaming data into fixed sized chunks and distributes them among the closest possible network of routers to the client or set of clients. The client will send an IPv4(Internet Protocol version 4) packet with the Differentiated Services Code Point for differentiated services set to a value for real-time data streaming and use the Acknowledgement number or ACK flag field in the TCP packet header for the chunk identifier(starting with zero and wrap around when it reaches the
maximum) and retrieve the chunk of media content. Similarly the client can also send an IPv6(Internet Protocol version 6) packet with the Differentiated Services field set to a value to indicate real-time streaming and use the Acknowledgement number or ACK flag field in the TCP packet header for the chunk
identifier(starting with zero and wrap around when it reaches the maximum) and retrieve the chunk of media content. When the IPv4 or IPv6 packet reaches the edge router it parses the TCP/IP header to look for the chunk identifier and does a look up in the routing table to check if it has the chunk or not. If it has the chunk then it is delivered to the client or else the edge router notifies to another router in the network handling the chunked media to forward those chunks to it which in turn forwards it to the client as each edge router in the network knows what chunk identifier range is handled by which routers or proxy servers in the network. After the chunk has been delivered the appropriate router (sender of chunked media) receives the Acknowledgement for the same and prepares to send the next chunk or chunks to the client if within its range or notify to another router in the network handling the new range of chunked media to forward those chunks to it which in turn forwards it to the client. The edge router in the network checks for the first chunk of media content when it receives the packet and does routing based on that till it reaches the edge router in the network which has that chunk. The edge routers also maintain the count of clients which have consumed the chunk. If the number of clients consuming the chunk have reached a threshold(platform capacity to handle the number of client requests by the network of edge routers) then we start removing those chunks and update the routing table, and the server adds next set of consecutive chunks to those edge routers. Also if clients stop streaming and the count of chunks consumed have not reached the threshold and is not incrementing then a timer event is fired after x seconds which purges those chunks from the edge router and also updates the routing table. Here the routing tables of all edge routers in the network can be updated together in batches for range of chunks it has by removing all entries after timeout and update each routing table in the edge router separately for the newly added chunks in them by the origin server. The above novel technique of accelerating content delivery in Claims
the network of proxy servers running on edge routers is the claim for this invention.
PCT/IB2018/051172 2018-02-25 2018-02-25 Intelligent content delivery network WO2019162728A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2018/051172 WO2019162728A1 (en) 2018-02-25 2018-02-25 Intelligent content delivery network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2018/051172 WO2019162728A1 (en) 2018-02-25 2018-02-25 Intelligent content delivery network

Publications (1)

Publication Number Publication Date
WO2019162728A1 true WO2019162728A1 (en) 2019-08-29

Family

ID=67686732

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2018/051172 WO2019162728A1 (en) 2018-02-25 2018-02-25 Intelligent content delivery network

Country Status (1)

Country Link
WO (1) WO2019162728A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7272613B2 (en) * 2000-10-26 2007-09-18 Intel Corporation Method and system for managing distributed content and related metadata
US20100094966A1 (en) * 2008-10-15 2010-04-15 Patentvc Ltd. Receiving Streaming Content from Servers Located Around the Globe
US8169916B1 (en) * 2007-11-23 2012-05-01 Media Melon, Inc. Multi-platform video delivery configuration

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7272613B2 (en) * 2000-10-26 2007-09-18 Intel Corporation Method and system for managing distributed content and related metadata
US8169916B1 (en) * 2007-11-23 2012-05-01 Media Melon, Inc. Multi-platform video delivery configuration
US20100094966A1 (en) * 2008-10-15 2010-04-15 Patentvc Ltd. Receiving Streaming Content from Servers Located Around the Globe

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