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    • 12. 发明申请
    • METHOD AND APPARATUS FOR ABSTRACTING LOGICAL TOPOLOGY INFORMATION OF PEER-TO-PEER NETWORK
    • 用于提取对等网络逻辑拓扑信息的方法和装置
    • US20120066368A1
    • 2012-03-15
    • US13299046
    • 2011-11-17
    • Chunxiu LiYan WangGuoyi Chen
    • Chunxiu LiYan WangGuoyi Chen
    • G06F15/173
    • H04L29/06H04L29/08072H04L41/0213H04L45/02H04L45/64H04L67/104
    • The present invention provides a method and an apparatus for abstracting logical topology information of a Peer-to-Peer (P2P) network. The method includes: obtaining a set of Points of Presence (POPs) of peer clients in the P2P network; using a relevant algorithm of a routing protocol to calculate a best path between any two POPs in the set of POPs and a weight value of the best path; and collecting calculation results of the best path and the weight value that are obtained on each POP to obtain a set of abstract logical topology records of the P2P network. The embodiments of the present invention provide a universal and efficient method for abstracting logical topology information, which greatly reduces network topology information that needs to be transmitted, mitigates a risk of exposing lower-layer network topology information, and transmits the network topology information to a P2P application server securely and concisely.
    • 本发明提供了一种用于抽象对等(P2P)网络的逻辑拓扑信息的方法和装置。 该方法包括:获取P2P网络中对等客户端的一组存在点(POP); 使用路由协议的相关算法来计算POP集合中任何两个POP之间的最佳路径和最佳路径的权重值; 并收集每个POP获得的最佳路径和权重值的计算结果,以获得一组P2P网络的抽象逻辑拓扑记录。 本发明的实施例提供了一种通用且有效的抽象逻辑拓扑信息的方法,大大减少了需要传输的网络拓扑信息,减轻了暴露下层网络拓扑信息的风险,并将网络拓扑信息传输到 P2P应用服务器安全简洁。
    • 13. 发明授权
    • Method and network system for negotiating a security capability between a PCC and a PCE
    • 用于协商PCC和PCE之间的安全能力的方法和网络系统
    • US08127129B2
    • 2012-02-28
    • US12437847
    • 2009-05-08
    • Guoyi Chen
    • Guoyi Chen
    • H04L9/00
    • H04L45/00H04L45/42H04L63/102H04L63/20H04L63/205
    • A method and a network system for negotiating a security capability between a path computation client (PCC) and a path computation element (PCE) are described. The method includes the steps as follows. The PCE sends a packet carrying security policy capability information to the PCC. After receiving the packet, the PCC acquires a security policy capability supported or required by the PCE or a security policy capability supported by both of the PCE and the PCC. In various embodiments of the present invention, negotiation of PCC-PCE and PCC-PCC may be performed by sending the packet carrying the security policy capability information, thereby greatly simplifying the security policy configuration between PCC-PCE and PCE-PCE, and simplifying the complexity in PCE deployment.
    • 描述用于在路径计算客户端(PCC)和路径计算元件(PCE)之间协商安全能力的方法和网络系统。 该方法包括以下步骤。 PCE向PCC发送携带安全策略能力信息的数据包。 PCC收到数据包后,取得PCE支持或要求的安全策略能力,PCC和PCC支持的安全策略能力。 在本发明的各种实施例中,可以通过发送携带安全策略能力信息的分组来执行PCC-PCE和PCC-PCC的协商,从而大大简化PCC-PCE与PCE-PCE之间的安全策略配置,并简化 PCE部署的复杂性。