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    • 1. 发明授权
    • Verifying that a network management policy used by a computer system can be satisfied and is feasible for use
    • 验证计算机系统使用的网络管理策略是否可以被满足并可行
    • US06301613B1
    • 2001-10-09
    • US09205833
    • 1998-12-03
    • John K. AhlstromStephen I. Schleimer
    • John K. AhlstromStephen I. Schleimer
    • G06F1300
    • H04L41/0873H04L41/0853H04L41/0893H04L41/12H04L63/102H04L63/20
    • A method and apparatus are provided for verifying policies that govern a policy-based system. The method and apparatus may be implemented as a policy verifier that acts upon one or more policies. Each policy comprises a condition and a consequent. The policy verifier acquires configuration information about the system under management, thereby acquiring an understanding of the system. The policy verifier determines whether all the policies can be satisfied by the system, and if not, reports problems or errors in the policies that cause the policies to be non-satisfiable. The policy verifier determines whether all the policies are feasible for the system, and if not, reports problems or errors that cause the policies to be non-feasible. The policy verifier also verifies that a configuration required by a particular policy consequent can be actually carried out by the managed system. In one embodiment, the policy verifier operates on network management policies, of a policy-based network management system. As a result, the invention improves the accuracy and safety of policies prepared for a network that previously did not use policy-based management.
    • 提供了一种用于验证管理基于策略的系统的策略的方法和装置。 该方法和装置可以被实现为作用于一个或多个策略的策略验证器。 每个政策都包括一个条件和结果。 策略验证者获取管理系统的配置信息,从而获得对系统的了解。 策略验证者确定系统是否可以满足所有策略,如果不能,则报告导致策略不可满足的策略中的问题或错误。 策略验证者确定所有策略是否适用于系统,否则,报告导致策略不可行的问题或错误。 策略验证器还验证了特定策略结果所需的配置可以由被管理系统实际执行。 在一个实施例中,策略验证器对基于策略的网络管理系统的网络管理策略进行操作。 因此,本发明提高了为以前不使用基于策略的管理的网络准备的策略的准确性和安全性。
    • 2. 发明授权
    • Method and apparatus for transmitting images and other objects over a computer network system
    • 用于通过计算机网络系统传送图像和其它物体的方法和装置
    • US06249787B1
    • 2001-06-19
    • US09510727
    • 2000-02-22
    • Stephen I. SchleimerJohn K. AhlstromPaul L. Hickman
    • Stephen I. SchleimerJohn K. AhlstromPaul L. Hickman
    • G06F1730
    • G06F17/30902Y10S707/99933Y10S707/99945Y10S707/99953
    • A network browsing system includes a host computer coupled to a client computer by a network. A network browser process implemented on the client computer is capable of establishing a connection with the host computer and of generating a request for desired data from the host computer which is to generate desired images on the display of the client computer. A server process implemented on the host computer services the request for desired data received from the client computer by modifying the desired data into modified data such that no additional connection between the client computer and the host computer is required to receive the entirety of the modified data. The browser process of the client computer can generate the desired images from the modified data to the same extent that it could from the originally requested desired data.
    • 网络浏览系统包括通过网络耦合到客户端计算机的主计算机。 在客户端计算机上实现的网络浏览器处理能够建立与主计算机的连接,并且从主计算机生成对于在客户计算机的显示器上产生所需图像的期望数据的请求。 在主计算机上实现的服务器进程通过将所需数据修改为修改数据来服务从客户计算机接收的期望数据的请求,使得不需要客户端计算机和主计算机之间的附加连接来接收整个修改的数据 。 客户端计算机的浏览器进程可以从修改的数据生成所需的图像,使其可以从原始请求的所需数据得到相同的程度。
    • 8. 发明授权
    • Recognizing and processing conflicts in network management policies
    • 认识和处理网络管理政策中的冲突
    • US06327618B1
    • 2001-12-04
    • US09205831
    • 1998-12-03
    • John K. AhlstromStephen I. Schleimer
    • John K. AhlstromStephen I. Schleimer
    • G06F15173
    • H04L41/0213H04L41/0893Y10S707/99935
    • A method and apparatus are provided for recognizing and processing conflicts in policies that govern a policy-based system. The method and apparatus may be implemented as a policy verifier that acts upon one or more policies. Each policy is formally defined and comprises a condition and a consequent, each of which are further formally defined in terms of component elements. A conflict among two or more policies is formally defined to occur when the condition of a first policy and the condition of a second policy may be simultaneously true, and when the consequent of the first policy and the consequent of the second policy may not be carried out simultaneously. When a policy conflict is detected, the conflict is resolved by bringing it to the attention of a user or external system, and receiving information that corrects one of the policies or specifies a precedence relationship among the policies.
    • 提供了一种方法和装置,用于识别和处理管理基于策略的系统的策略中的冲突。 该方法和装置可以被实现为作用于一个或多个策略的策略验证器。 每个政策都被正式定义,包括一个条件和结果,其中的每个都是按组成要素进一步正式定义的。 当第一政策的条件和第二政策的条件可能同时成立时,以及第一政策的后果和第二政策的后果可能不被执行时,两种或多种政策之间的冲突被正式地定义为发生 同时出来。 当检测到策略冲突时,通过使用户或外部系统注意解决冲突,并且接收纠正策略之一或指定策略之间的优先关系的信息。