WO2010028590A1 - Procédé de fourniture d'une liste d'adresses, réseau poste à poste et procédé de planification associé - Google Patents

Procédé de fourniture d'une liste d'adresses, réseau poste à poste et procédé de planification associé Download PDF

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Publication number
WO2010028590A1
WO2010028590A1 PCT/CN2009/073813 CN2009073813W WO2010028590A1 WO 2010028590 A1 WO2010028590 A1 WO 2010028590A1 CN 2009073813 W CN2009073813 W CN 2009073813W WO 2010028590 A1 WO2010028590 A1 WO 2010028590A1
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WO
WIPO (PCT)
Prior art keywords
server
media
client
content
index
Prior art date
Application number
PCT/CN2009/073813
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English (en)
Chinese (zh)
Inventor
邵济平
Original Assignee
中兴通讯股份有限公司
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
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2010028590A1 publication Critical patent/WO2010028590A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/104—Peer-to-peer [P2P] networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/104—Peer-to-peer [P2P] networks
    • H04L67/1061—Peer-to-peer [P2P] networks using node-based peer discovery mechanisms
    • H04L67/1063—Discovery through centralising entities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/104—Peer-to-peer [P2P] networks
    • H04L67/1061—Peer-to-peer [P2P] networks using node-based peer discovery mechanisms
    • H04L67/1065—Discovery involving distributed pre-established resource-based relationships among peers, e.g. based on distributed hash tables [DHT] 

Definitions

  • the present invention relates to streaming media technologies, and in particular, to a method for providing an address list, a P2P network, and a scheduling method thereof.
  • BACKGROUND Currently, P2P technology has been widely used in the Internet, and the P2P mode has become the preferred mode for many services, and is widely used in the fields of file sharing, network video, and Internet telephony.
  • P2P technology features distributed resource sharing and parallel transmission, providing users with more resources, higher available bandwidth, and better services.
  • P2P applications can be divided into three models according to their architecture:
  • the model provides the name index of the connected peer and all the resources on the network. At the same time, the establishment of communication between peers depends on the initialization of the server.
  • the server is dominant in the system, similar to the traditional C/S (ie, Client/Server) model.
  • C/S ie, Client/Server
  • the disadvantages of this model are: Because of the dependence of the various parts of the network on the central server, it is easy to cause access to "hot spots", single points of failure and legal issues;
  • Non-Server Serverless model
  • All members are peers, there is no concept of a server at all, the peer dynamically discovers the peers connected to it, and the communication between the peers is completely completed by itself without any help from the server, breaking the C/S.
  • the traditional communication method of the model is also called pure P2P model.
  • the model can completely share and quickly provide all the resources in the network under certain rules, and support the fast joining and exiting of each peer.
  • This pure P2P mode The model allows the user to set communication rules and establish a unique network environment, which can maximize the utilization of network resources and achieve the goal of optimizing system performance.
  • Such pure P2P systems include Gnutella and Freenet, Myjxta and the domestic SNS social network, Nexter and others.
  • the pure P2P model can provide approximate plug-and-play characteristics, but there is no effective solution in the prior art for the problem of how peers on the network discover each other and establish communication with each other.
  • a P2P network is provided.
  • the P2P network includes an index server and a media server, and the index server is configured to respond to a media content query request of the client and return a query result, where the media server is used to store the media.
  • the index server includes a remote query module, configured to send a query request to other servers and receive the query result when the client query content is missing.
  • the remote query module includes a DHT (Distributed Hash Table) transceiver module for querying other index servers through the DHT network.
  • the index server further includes a return control module, configured to control the media server or other client address list returned by the query, so that other clients or media servers in the same network in the list are located in front of other media servers in the same area or Client.
  • the cable 1 server further includes a missing counting module and a copy triggering module, where the missing counting module is configured to count the number of times the index server is missing the same query content, and when the number exceeds a preset threshold, the copy triggering module
  • the media server that triggers the index server management issues a content request to the other media server for the same query content and copies it.
  • the cable 1 server further includes a query counting module and a load balancing module, and the query counting module accumulates the number of times the same media content is requested to be queried. When the number exceeds a preset threshold, the load balancing module sets the same content in the The plurality of media servers managed by the index server are distributed, and subsequent multiple query requests for the same content will specify different media server responses for obtaining the distributed content.
  • a scheduling method for a network comprising the steps of: ⁇ , client login, returning an index server address; ⁇ , client to index service
  • the server queries the media server where the request content is located; c.
  • the index server returns a list of addresses of the media server and other clients that have the requested content; D.
  • the client sends a request content message to the media server or other client that has the requested content;
  • the media server or other client returns the requested media content; the step C further includes the following steps: Cl.
  • Step D otherwise performing the following steps; C2, the index server sends a query request to other index servers; C3, the index server receives a list of addresses returned by other index servers and returns them to the client.
  • the query request in the step C2 is sent through the DHT network.
  • the address list of the step C will be in the order of other clients or media servers in the same network before other media servers or clients in the same area.
  • the step C3 further includes the following steps: C31: accumulating the number of missing requests of the requested query content; C32.
  • the step C1 further includes the following steps: C11. Accumulating the number of requests for the requested content; C12. When the number of requests exceeds a preset threshold, the index server will request to query multiple media managed by the index server. The servers are distributed between the servers, and subsequent multiple query requests for the same content will specify different media server responses to obtain the distributed content.
  • the step A returns a plurality of index server addresses that are geographically close, and the default index server is selected by default, and the step B is to send a request to the default index server.
  • a method for providing an address list comprising the following steps: A.
  • the index server checks whether there is a media server or other client address list capable of providing content requested by the client, if If yes, go to step B, otherwise, go to step C; B. Return the address list of the media server or the other client directly to the client; C.
  • the index server sends a query request to other index servers.
  • the index server receives the address list returned by the other server 1 and returns it to the client.
  • the beneficial effects of the present invention compared with the prior art are as follows: (1) The query between the index servers through the DHT network improves the query efficiency of the P2P network; (2) For the control of returning the result list order, the resources closer to the client are in front of the list, which is advantageous for controlling the cross-region traffic;
  • FIG. 3 is a diagram of a method according to an embodiment of the present invention.
  • FIG. 4 is a flow chart of method steps according to an embodiment of the present invention;
  • FIG. 5 is a flowchart of a method for providing an address list according to an embodiment of the present invention.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Apparatus Embodiments hereinafter, the present invention will be further described in detail by way of specific embodiments and with reference to the accompanying drawings.
  • the embodiment of the present invention provides a P2P network.
  • FIG. 1 is a structural diagram of a P2P network index server according to an embodiment of the present invention. As shown in FIG. 1, the P2P network includes an index server and a media server.
  • the client issues a content query request to the index server
  • the index server responds to the query request and returns a list of media servers or other clients having the requested content
  • the media server stores the media content.
  • the index server may include a remote query module, a return control module, a missing count module, a copy trigger module, a query count module, and a load balancing module.
  • the remote query module sends a query request to other servers 1 and receives the returned query result when the index server does not have a corresponding content resource list.
  • the remote query module may include a DHT transceiver module for supporting the use of the DHT network for other index servers. Inquire.
  • the return control module is used to control the media service returned by the query.
  • the order of the servers is such that other clients or media servers in the same network in the list are located in front of other media servers in the same area, so that the client can preferentially access the media servers or other clients in the same network to avoid Large cross-regional network traffic.
  • the missing counting module is configured to count the number of times the index server is missing the same query content. When the number exceeds a preset threshold, the replication triggering module triggers the media server to send a content request to the other media server for the same query content, so that the content is made. There is a backup on the local media server, and the request for the media content can no longer cause cross-region traffic problems.
  • the query counting module is configured to count the number of times the same content is requested.
  • the load balancing module distributes the same content between multiple media servers managed by the index server, and the subsequent occurrence is targeted. Multiple requests for the same content will specify different media server responses to balance the load.
  • the network architecture of the embodiment of the present invention is as shown in FIG. 2, wherein a dotted double-headed arrow indicates a signaling message flow, and a solid double-headed arrow indicates data and a signaling flow.
  • the client ⁇ first obtains the media identifier from the EPG, and then sends a query request to the cable server, the index server searches for the server with the content of the media, and returns its address and other client addresses to the requesting client.
  • the index server When returning the list of media servers, the index server preferentially returns other clients or media servers in the same network that request data from the client, and then returns to other media servers in the same area (compensating the server and other clients). This can effectively reduce the generation of cross-regional traffic.
  • the method embodiment uses the foregoing network, and the embodiment of the present invention further provides a scheduling method for the network, as shown in FIG. 3, including the following steps S1 to S10:
  • the client sends a request message to the index server 1;
  • the index server 1 After receiving the request from the client, the index server 1 locally queries the content required by the client;
  • the media server 1 address is immediately returned to the client; S4, the client sends a message to the media server 1, requesting the required media content;
  • the media server 1 returns the data requested by the client, and the process ends;
  • the server queries the other index servers through the DHT network between the index servers; 57.
  • the other index server n returns the found media server address to the local index server 1;
  • the above-mentioned found media server address is returned to the requesting client by the local index server 1; S9. After obtaining the media server address of the request, the local client directly sends a request message to the remote media server.
  • FIG. 4 depicts a flow chart of the method steps for P2P network scheduling, including the process of missing content replication and frequent request content distribution. That is, in the above step S6, the method further includes the following steps: S61. Determine whether the number of times the content of the local index server is missing exceeds a preset threshold;
  • step S7 if the threshold is not exceeded, then go to step S7;
  • Step S3 further includes the following steps:
  • FIG. 5 is a flowchart of an address list providing method according to an embodiment of the present invention. As shown in FIG. 5, the address list providing method includes the following steps: Step S501: The index server checks whether there is a medium capable of providing content requested by the client.
  • Step S503 The index server sends a query request to another index server, and the server receives the address list returned by the other server and returns it to the client.
  • a computer readable medium having stored thereon computer executable instructions for causing a computer or processor to perform, for example, when executed by a computer or processor The processing of the steps shown in Figs. 3, 4, and 5, optionally, one or more of the above-described embodiments may be performed.
  • the implementation of the present invention does not modify the system architecture and the current processing flow, is easy to implement, facilitates promotion in the technical field, and has strong industrial applicability.
  • the above is a further detailed description of the present invention in connection with the specific preferred embodiments, and the specific embodiments of the present invention are not limited to the description. It will be apparent to those skilled in the art that the present invention can be made without departing from the spirit and scope of the invention.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

Cette invention se rapporte à un réseau poste à poste (P2P). Ce dernier comprend des serveurs d'index et des serveurs multimédias. Le serveur d'index répond à une demande d'interrogation de contenu multimédia en provenance d'un client et renvoie un résultat d'interrogation. Le serveur multimédia stocke les contenus multimédias et accepte la gestion des serveurs d'index. Le serveur d'index comprend un module d'interrogation à distance qui est utilisé pour envoyer la demande d'interrogation à d'autres serveurs d'index et recevoir le résultat de l'interrogation lorsque le serveur d'index manque de contenus d'interrogation du client. Un procédé de fourniture d'une liste d'adresses et un procédé de planification dans le réseau poste à poste sont également fournis. L'efficacité d'interrogation peut être améliorée et la quantité de circulation entre domaines peut être réduite grâce aux procédés et au réseau.
PCT/CN2009/073813 2008-09-12 2009-09-08 Procédé de fourniture d'une liste d'adresses, réseau poste à poste et procédé de planification associé WO2010028590A1 (fr)

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CN200810216211.3 2008-09-12
CN 200810216211 CN101355591A (zh) 2008-09-12 2008-09-12 一种p2p网络及其调度方法

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CN109688187A (zh) * 2018-09-07 2019-04-26 平安科技（深圳）有限公司 流量负载均衡方法、装置、设备及可读存储介质
CN111756795A (zh) * 2020-05-06 2020-10-09 浙江吉利汽车研究院有限公司 一种服务信息管理方法、装置、电子设备及存储介质

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CN101594316B (zh) * 2008-05-30 2012-06-06 华为技术有限公司 一种分布式网络的管理方法、内容查询方法、系统及装置
CN101355591A (zh) * 2008-09-12 2009-01-28 中兴通讯股份有限公司 一种p2p网络及其调度方法
CN101483604B (zh) * 2009-02-16 2011-09-14 华为技术有限公司 资源列表发送方法、装置和系统
CN101997891B (zh) * 2009-08-28 2013-12-04 华为技术有限公司 一种p2p媒体流分发的方法、装置及系统
WO2011116502A1 (fr) * 2010-03-26 2011-09-29 Nec(China) Co., Ltd. Serveur d'indexation et procédé associé
CN101997922B (zh) * 2010-11-19 2012-11-21 武汉大学 基于代价优化的p2p流媒体覆盖网拓扑构造调整方法
CN102651757A (zh) * 2011-02-28 2012-08-29 中兴通讯股份有限公司 一种p2p内容分发的方法和系统
CN102651758A (zh) * 2011-02-28 2012-08-29 中兴通讯股份有限公司 一种p2p内容分发的方法和系统
CN102891872B (zh) * 2011-07-20 2018-02-09 中兴通讯股份有限公司 一种对等网络中数据存储和查询的方法及系统
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CN103078771B (zh) * 2013-02-01 2015-09-09 上海交通大学 基于p2p的僵尸网络分布式协作检测系统和方法
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