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    • 51. 发明授权
    • Named sockets in a firewall
    • 在防火墙中命名套接字
    • US08887265B2
    • 2014-11-11
    • US13851803
    • 2013-03-27
    • McAfee, Inc.
    • Michael GreenDavid F. DiehlMichael J. Karels
    • G06F21/00H04L29/06H04L29/08
    • H04L63/0281H04L63/029H04L69/326
    • A proxy device such as a firewall uses an internal socket namespace such as a text string such that connection requests must be explicitly redirected to a listening socket in the alternate namespace in order to connect to a service. Because external connections cannot directly address the listening socket or service, greater security is provided than with traditional firewall or proxy devices. To receive a redirected proxy connection, a service process creates a listening socket and binds a name in an alternate namespace to the socket before listening for connections.
    • 代理设备(如防火墙)使用内部套接字命名空间(例如文本字符串),以便连接请求必须显式重定向到备用命名空间中的侦听套接字以连接到服务。 由于外部连接不能直接处理侦听套接字或服务,因此与传统的防火墙或代理设备相比,提供了更高的安全性。 要接收重定向的代理连接,服务进程将创建一个侦听套接字,并在侦听连接之前将备用命名空间中的名称绑定到套接字。
    • 52. 发明授权
    • Load-balancing cluster
    • 负载平衡集群
    • US08886814B2
    • 2014-11-11
    • US13899476
    • 2013-05-21
    • Level 3 Communications, LLC
    • Maksim YevmenkinDavid FullagarChristopher NewtonJeffrey Koller
    • G06F15/16H04L29/12H04L29/08
    • H04L67/101H04L29/12405H04L61/2007H04L61/2528H04L67/02H04L67/1002H04L67/1014H04L67/1023H04L67/1036H04L67/1068H04L67/141H04L67/2842H04L69/326
    • A load-balancing cluster includes a switch having a plurality of ports; and a plurality of servers connected to at least some of the ports, each of the servers being addressable by the same virtual Internet Protocol (VIP) address. Responsive to a connection request at the switch to connect a client computer to a server associated with the VIP address, a first server of the plurality of servers establishing a Transmission Control Protocol (TCP) connection with the client computer, and, in response to a resource request received by the first server from the client computer for a particular resource, if the first server does not have a copy of the particular resource it queries one or more peers regarding the particular resource. Based at least in part on responses from the peers, the first server either: obtains the particular resource from a first peer of the one or more peers when the first peer indicates that the first peer has a copy of the particular resource; or migrates the TCP connection to a second peer when the second peer indicates that the initial peer server should migrate the connection to the second peer; or serves the particular resource to the client request through a second server when a third peer indicates that the initial server should proxy the particular resource through the second server.
    • 负载均衡集群包括具有多个端口的交换机; 以及连接到至少一些端口的多个服务器,每个服务器可由相同的虚拟因特网协议(VIP)地址寻址。 响应于交换机处的连接请求以将客户端计算机连接到与VIP地址相关联的服务器,所述多个服务器中的第一服务器与客户端计算机建立传输控制协议(TCP)连接,并且响应于 如果第一服务器没有特定资源的副本,则查询关于特定资源的一个或多个对等体,则由第一服务器从客户端计算机接收针对特定资源的资源请求。 至少部分地基于来自对等体的响应,第一服务器:当第一对等体指示第一对等体具有特定资源的副本时,从一个或多个对等体的第一对等体获得特定资源; 或者当第二对等体指示初始对等服务器应该将连接迁移到第二对等体时,将TCP连接迁移到第二对等体; 或者当第三对等体指示初始服务器应通过第二服务器代理特定资源时,通过第二服务器为客户端请求提供特定资源。
    • 56. 发明授权
    • Centralized computing
    • 集中计算
    • US08849905B2
    • 2014-09-30
    • US13663034
    • 2012-10-29
    • gridCore AB
    • Devarajan Subramanian
    • G06F15/16H04L12/24G06F9/50
    • H04L41/5096G06F9/4843G06F9/5072H04L67/08H04L67/10H04L69/326
    • A centralized computing system, comprising a centralized computing center comprising a plurality of nodes, a plurality of clients in different geographical regions, an IP network interconnecting the clients and the centralized computing center, and a scheduler scheduling jobs onto suitable nodes.The plurality of nodes include desktop container nodes, exclusively used for running remote desktop server software, each remote desktop server software communicating visual output to a remote desktop viewer on one of the clients. The system further comprises an accelerator arrangement capable of providing communication of visual output between the desktop container nodes and the clients using an alternative transport layer protocol other than transmission control protocol (TCP), the alternative transport layer protocol being more efficient than TCP over a high-latency connection.
    • 一种集中式计算系统,包括集中计算中心,包括多个节点,不同地理区域中的多个客户端,互连客户端和集中式计算中心的IP网络,以及调度程序将作业调度到合适的节点上。 多个节点包括专门用于运行远程桌面服务器软件的桌面容器节点,每个远程桌面服务器软件将视觉输出传达到其中一个客户端上的远程桌面查看器。 该系统还包括加速器装置,其能够使用除传输控制协议(TCP)之外的替代传输层协议来提供桌面容器节点和客户端之间的视觉输出的通信,所述替代传输层协议比TCP高效 连接性。
    • 58. 发明申请
    • Retransmission-Based Stream Repair and Stream Join
    • 基于重传的流修复和流加入
    • US20140029628A1
    • 2014-01-30
    • US14045813
    • 2013-10-04
    • Cisco Technology, Inc.
    • David R. Oran
    • H04L29/08
    • H04L29/08585H04L1/1607H04L29/12783H04L45/12H04L45/16H04L61/35H04L65/4076H04L65/608H04L65/80H04L69/326H04L2001/0093
    • The Real-time Transport Protocol (RTP) and its related standards define a retransmission packet format and a way to give feedback via Negative ACKnowledge (NACK) packets for data that has been lost. In one embodiment, a unicast RTP repair session is associated with a main Source Specific Multicast (SSM) multicast session. Real-time Transport Control Protocol (RTCP) NACK packets are then used for feedback to a SSM feedback target address. This dynamically instantiates unicast RTP repair for multicast sessions. The repair scheme can be used for repairing multicast channels or joining new multicast channels. In another embodiment, a media transmission device shares an IP address with one or more other media transmission devices. The shared IP address can also be used to route multiple identical multicast media streams to different media stream receivers.
    • 实时传输协议(RTP)及其相关标准定义了重传分组格式,并且通过负数确认(NACK)分组为丢失的数据提供反馈的方式。 在一个实施例中,单播RTP修复会话与主要源特定多播(SSM)多播会话相关联。 然后将实时传输控制协议(RTCP)NACK分组用于SSM反馈目标地址的反馈。 这可以动态实例化多播会话的单播RTP修复。 修复方案可用于修复组播信道或加入新的组播信道。 在另一个实施例中,媒体传输设备与一个或多个其他媒体传输设备共享IP地址。 共享IP地址也可以用于将多个相同的多播媒体流路由到不同的媒体流接收器。
    • 60. 发明申请
    • DATA TRANSMISSION USING A MULTIHOMING PROTOCOL AS SCTP
    • 数据传输使用多协议作为SCTP
    • US20130325933A1
    • 2013-12-05
    • US13908155
    • 2013-06-03
    • Thomson Licensing
    • Anthony LAURENTStephane Gouache
    • H04L29/06
    • H04L67/42H04L12/4633H04L45/02H04L45/20H04L47/70H04L69/14H04L69/326
    • Method of transmission of data between a server and a client, said transmission using a multihoming protocol, as SCTP, over a network comprising at least one principal link and one secondary link connecting the server and the client, said method comprising the steps of: a) set-up of a connection between the server and the client; b) allocation of a bandwidth over the principal link to the transmission of data from the server to the client; c) transmission of data from the server to the client over the principal link as long as said allocated bandwidth is not fully used; and d) if the allocated bandwidth has been fully used, transmission of data from the server to the client over the secondary link.
    • 在服务器和客户端之间传输数据的方法,所述使用多宿主协议的传输作为SCTP通过包括至少一个主链路和连接所述服务器和所述客户端的一个辅助链路的网络进行,所述方法包括以下步骤: )设置服务器和客户端之间的连接; b)通过主服务器向服务器向客户端传输数据的带宽分配; c)只要所述分配的带宽没有被完全使用,则通过主链路将数据从服务器传送到客户端; 以及d)如果分配的带宽已被完全使用,则通过辅助链路将数据从服务器传输到客户端。