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    System and method of optimizing retrieval of network resources by identifying and substituting embedded symbolic host name references with network addresses in accordance with substitution policies
    1.
    发明授权
    System and method of optimizing retrieval of network resources by identifying and substituting embedded symbolic host name references with network addresses in accordance with substitution policies 有权
    根据替代策略，通过网络地址识别和替换嵌入式符号主机名称引用来优化网络资源检索的系统和方法

    公开(公告)号：US07082476B1

    公开(公告)日：2006-07-25

    申请号：US09578027

    申请日：2000-05-24

    申请人： Ron Cohen ,  Yoram Snir

    发明人： Ron Cohen ,  Yoram Snir

    IPC分类号： G06F15/16 ,  G06F15/173

    CPC分类号： H04L29/12009 ,  G06F17/30899 ,  H04L29/12028 ,  H04L29/12066 ,  H04L61/103 ,  H04L61/1511 ,  H04L67/1002

    摘要： A method and apparatus are provided for optimizing retrieval of network resources. In one embodiment, a method of optimizing access to a network resource is implemented in a computer program executed by a router, cache server, or proxy server. A network resource that contains one or more embedded symbolic host name references is received. A network address corresponding to each of the embedded symbolic host name references is determined. A modified copy of the network resource is created and stored; in the modified copy, a network address is substituted for each corresponding embedded symbolic host name reference. Thereafter, the modified copy of the network resource in responding to all subsequent client requests for the network resource, thereby greatly reducing the required number of network address lookup operations. In one specific embodiment, IP addresses are determined using DNS queries for the hostname portion of all URLs that are embedded in a Web page using image, applet, object, or embed tags. The IP addresses are stored in place of the hostname portions in a modified copy of the Web page, typically in a cache. As a result, when the modified page is subsequently served to clients, the clients need not carry out DNS resolution of all the embedded URLs, resulting in reduced network message traffic and more rapid page display.

    摘要翻译： 提供一种用于优化网络资源检索的方法和装置。 在一个实施例中，优化对网络资源的访问的方法在由路由器，缓存服务器或代理服务器执行的计算机程序中实现。 收到包含一个或多个嵌入式符号主机名称引用的网络资源。 确定与每个嵌入的符号主机名称引用相对应的网络地址。 创建并存储网络资源的修改副本; 在修改的副本中，替换每个相应的嵌入式符号主机名称引用的网络地址。 此后，网络资源的修改副本响应于网络资源的所有后续客户端请求，从而大大减少了所需的网络地址查找操作数量。 在一个具体实施例中，使用对使用图像，小应用程序，对象或嵌入标签嵌入在网页中的所有URL的主机名部分的DNS查询来确定IP地址。 IP地址存储在Web页面的修改副本中，通常位于缓存中，代替主机名部分。 因此，当修改的页面随后被提供给客户端时，客户端不需要对所有嵌入式URL进行DNS解析，导致网络消息流量减少，页面显示更快速。

    Method and apparatus of storing policies for policy-based management of quality of service treatments of network data traffic flows
    3.
    发明授权
    Method and apparatus of storing policies for policy-based management of quality of service treatments of network data traffic flows 有权
    存储基于策略的管理网络数据流量服务质量管理策略的方法和装置

    公开(公告)号：US06463470B1

    公开(公告)日：2002-10-08

    申请号：US09376802

    申请日：1999-08-18

    申请人： Shai Mohaban ,  Itzhak Parnafes ,  Yoram Ramberg ,  Yoram Snir ,  John Strassner

    发明人： Shai Mohaban ,  Itzhak Parnafes ,  Yoram Ramberg ,  Yoram Snir ,  John Strassner

    IPC分类号： G06F1300

    CPC分类号： H04L47/10 ,  H04L41/0893 ,  H04L41/5003 ,  H04L41/5019 ,  H04L41/5045 ,  H04L41/5096 ,  H04L47/20 ,  H04L47/2408 ,  H04L47/2433 ,  H04L47/2441 ,  H04L47/2458 ,  H04L47/2475 ,  H04L47/70 ,  H04L47/724 ,  H04L47/765 ,  H04L47/803 ,  H04L47/805

    摘要： A method and apparatus for storing policies for use in policy-based management of quality of service treatments of network data traffic flows are described. The policies are stored in the form of policy statements. Each policy statement applies to a specific application that runs in the network. Each policy statement includes a condition and a network service to be applied to all traffic matching the condition. Each condition comprises one or more basic condition components connected by operators. Each basic condition comprises a basic policy parameter identifier, an operator and an operand. Policy statements are stored in a Repository, which may be a Directory Server or an X.500 directory. A policy server may create and store policies in the Repository based on information about the application, the network devices, and the quality of service treatments that the network devices can apply to a traffic flow. An application program and the policy server network device can retrieve the policy information from the Repository using appropriate function calls or an access protocol such as LDAP. In an alternative embodiment, a complete quality of service directory schema for representing abstract policies is disclosed.

    摘要翻译： 描述了用于存储用于网络数据业务流的服务质量处理的基于策略的管理的策略的方法和装置。 策略以策略语句的形式存储。 每个策略语句适用于在网络中运行的特定应用程序。 每个策略语句包括一个条件和一个网络服务，适用于匹配条件的所有流量。 每个条件包括由操作者连接的一个或多个基本条件部件。 每个基本条件包括基本策略参数标识符，运算符和操作数。 策略语句存储在存储库中，Repository可能是目录服务器或X.500目录。 策略服务器可以基于关于应用，网络设备和网络设备可以应用于业务流的服务质量的服务的信息，在存储库中创建和存储策略。 应用程序和策略服务器网络设备可以使用适当的函数调用或诸如LDAP的访问协议从存储库检索策略信息。 在替代实施例中，公开了用于表示抽象策略的完整服务质量目录模式。

    Method and apparatus for retrieving network quality of service policy information from a directory in a quality of service policy management system
    4.
    发明授权
    Method and apparatus for retrieving network quality of service policy information from a directory in a quality of service policy management system 有权
    从服务质量管理系统的目录中检索服务策略信息的网络质量的方法和装置

    公开(公告)号：US07099932B1

    公开(公告)日：2006-08-29

    申请号：US09640466

    申请日：2000-08-16

    申请人： Ilan Frenkel ,  Roman Geller ,  Yoram Ramberg ,  Yoram Snir

    发明人： Ilan Frenkel ,  Roman Geller ,  Yoram Ramberg ,  Yoram Snir

    IPC分类号： G06F15/173 ,  G06F15/177

    CPC分类号： H04L29/12009 ,  H04L29/12047 ,  H04L41/0893 ,  H04L61/15

    摘要： A method and apparatus is provided for retrieving and storing quality of service policy management information using a directory service in a manner that enforces read/write consistency and enables read/write concurrency. A directory information tree manager is created and stored in the directory service. One or more directory information trees are created in the directory service in association with the directory information tree manager. Each directory information tree is associated with a sub-tree that represents quality of service policy information, and each directory information tree has a validity period value. When a process needs quality of service policy management information, the system determines which of the directory information trees is a currently active directory information tree. The QoS information is retrieved from the currently active directory information tree only during a time period within the validity period value thereof.

    摘要翻译： 提供了一种方法和装置，用于以强制读/写一致性并且使得读/写并发性的方式使用目录服务检索和存储服务质量策略管理信息。 目录信息树管理器被创建并存储在目录服务中。 与目录信息树管理器相关联地在目录服务中创建一个或多个目录信息树。 每个目录信息树与表示服务质量策略信息的子树相关联，并且每个目录信息树具有有效期值。 当进程需要服务质量策略管理信息时，系统确定哪个目录信息树是当前活动的目录信息树。 仅在其有效期限值内的时间段内从当前活动的目录信息树中检索QoS信息。

    Method and apparatus for automatically establishing bi-directional differentiated services treatment of flows in a network
    5.
    发明授权
    Method and apparatus for automatically establishing bi-directional differentiated services treatment of flows in a network 有权
    用于自动建立网络中流的双向差分服务处理的方法和装置

    公开(公告)号：US07050396B1

    公开(公告)日：2006-05-23

    申请号：US09729623

    申请日：2000-11-30

    申请人： Ron Cohen ,  Yoram Snir ,  John Schnizlein

    发明人： Ron Cohen ,  Yoram Snir ,  John Schnizlein

    IPC分类号： H04L1/00

    CPC分类号： H04L12/2854 ,  H04L47/2408 ,  H04W72/12 ,  H04W76/10

    摘要： A method of automatically establishing differentiated services quality of service treatment for a return packet flow that is associated with an originating packet flow in a network is disclosed. The originating packet flow is received, and it is determined that one or more packets in the originating packet flow are marked with a DSCP value that matches a policy rule that instruct setting of a specified DSCP value to the return packet flow. In response, information identifying the originating packet flow and a second DSCP value for marking the return packet flow is created and stored. When a corresponding return packet flow is received and determined to be associated with the originating packet flow, packets of the return packet flow are automatically marked with the second DSCP value. Once the packet flow terminates, all stored information is removed.

    摘要翻译： 公开了一种与网络中的始发分组流相关联的返回分组流自动建立差分服务质量服务质量的方法。 接收始发分组流，并且确定始发分组流中的一个或多个分组被标记为与指示将指定的DSCP值的设置指定给返回分组流的策略规则相匹配的DSCP值。 作为响应，创建并存储识别发起分组流的信息和用于标记返回分组流的第二DSCP值。 当相应的返回分组流被接收并确定为与发起分组流相关联时，返回分组流的分组被自动标记为具有第二DSCP值。 一旦数据包流终止，所有存储的信息都被删除。