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1. 发明授权

US06826621B1 Method and system for aggregating interface addresses 失效
标题翻译：聚合接口地址的方法和系统
公开(公告)号：US06826621B1
公开(公告)日：2004-11-30
申请号：US09557111
申请日：2000-04-24
申请人： George Andrew Kephart , David Richard Marquardt
发明人： George Andrew Kephart , David Richard Marquardt
IPC分类号： G06F1300
CPC分类号： H04L29/12801 , H04L29/12952 , H04L61/6004 , H04L61/6077
摘要： A system for effectively reducing address resolution of a packet on a network by representing multiple addresses on a node of the network by a single maskaddress. An aggregation utility is utilized to aggregate the multiple addresses from an address space (i.e., a number of addresses having a common initial bits) of sequential addresses. A pre-selected aggregation percent, representing the percentage of actual addresses from the space which is present on the node, is utilized in the evaluation of the maskaddress. The maskaddress comprises of two variables. The first variable represents the size of the space and the common initial bits. The second variable provides information on the number of relevant bits to include in the maskaddress and the length of the space to point out the actual addresses, which are present in the space. A negative address utility is utilized to indicate which addresses from within the address pace are not hosted on the node. Finally, a comparison utility compares the destination address of network packets with the maskaddress to determine if the packet is addressed to one of the addresses on the node.
摘要翻译：一种用于通过单个掩码地址表示网络节点上的多个地址来有效降低网络上数据包的地址解析度的系统。利用聚合实用程序从顺序地址的地址空间（即，具有公共初始位的数目的地址）聚合多个地址。在该掩码地址的评估中使用预先选择的聚合百分比，表示来自节点上存在的空间的实际地址的百分比。 maskaddress包含两个变量。第一个变量表示空间的大小和公用的初始位。第二个变量提供关于包含在掩码地址中的相关比特数的信息以及指出空间中存在的实际地址的空间的长度。使用负地址实用程序来指示来自地址速度的哪些地址不被托管在节点上。最后，比较实用程序将网络数据包的目标地址与掩码地址进行比较，以确定数据包是否寻址到节点上的一个地址。

2. 发明申请

US20110283367A1 SECURING A COMMUNICATION PROTOCOL AGAINST ATTACKS 有权
标题翻译：保护打击通讯协议
公开(公告)号：US20110283367A1
公开(公告)日：2011-11-17
申请号：US12779121
申请日：2010-05-13
申请人： David Richard Marquardt , Prashant Anant Paranjape , Poornima Srinivas Patil
发明人： David Richard Marquardt , Prashant Anant Paranjape , Poornima Srinivas Patil
IPC分类号： G06F21/00
CPC分类号： H04L63/14
摘要： A method, system, and computer usable program product for securing a data communication against attacks are provided in the illustrative embodiments. A segment in the data communication is received at a first application executing in a first data processing system. The segment is formed according to a data communication protocol and includes an option. The option includes a current clue and a next clue. The current clue is compared with a saved next clue, the saved next clue being a next clue in a previous segment. The segment is accepted as being a valid segment in the data communication if the current clue matches the saved next clue. A part of the segment is sent to a consumer application.
摘要翻译：在说明性实施例中提供了用于保护数据通信不受攻击的方法，系统和计算机可用程序产品。在第一数据处理系统中执行的第一应用程序接收数据通信中的段。该段根据数据通信协议形成，并包括一个选项。该选项包括当前线索和下一条线索。将当前线索与保存的下一条线索进行比较，保存的下一条线索是先前段落中的下一条线索。如果当前线索与保存的下一个线索相匹配，则该段被接受为数据通信中的有效段。该段的一部分被发送到消费者应用程序。

3. 发明授权

US08424106B2 Securing a communication protocol against attacks 有权
标题翻译：保护通信协议免受攻击
公开(公告)号：US08424106B2
公开(公告)日：2013-04-16
申请号：US12779121
申请日：2010-05-13
申请人： David Richard Marquardt , Prashant Anant Paranjape , Poornima Srinivas Patil
发明人： David Richard Marquardt , Prashant Anant Paranjape , Poornima Srinivas Patil
IPC分类号： G06F7/04 , G06F17/30
CPC分类号： H04L63/14
摘要： A method, system, and computer usable program product for securing a data communication against attacks are provided in the illustrative embodiments. A segment in the data communication is received at a first application executing in a first data processing system. The segment is formed according to a data communication protocol and includes an option. The option includes a current clue and a next clue. The current clue is compared with a saved next clue, the saved next clue being a next clue in a previous segment. The segment is accepted as being a valid segment in the data communication if the current clue matches the saved next clue. A part of the segment is sent to a consumer application.
摘要翻译：在说明性实施例中提供了用于保护数据通信不受攻击的方法，系统和计算机可用程序产品。在第一数据处理系统中执行的第一应用程序接收数据通信中的段。该段根据数据通信协议形成，并包括一个选项。该选项包括当前线索和下一条线索。将当前线索与保存的下一条线索进行比较，保存的下一条线索是先前段落中的下一条线索。如果当前线索与保存的下一个线索相匹配，则该段被接受为数据通信中的有效段。该段的一部分被发送到消费者应用程序。

4. 发明授权

US5959974A System and method for discovering path MTU of internet paths 失效
标题翻译：发现互联网路径MTU的系统和方法
公开(公告)号：US5959974A
公开(公告)日：1999-09-28
申请号：US755864
申请日：1996-12-02
申请人： Daniel Edward Badt , David Richard Marquardt , Satyanarayana Billekal Rao , Lance Warren Russell , Larry Steven Wise
发明人： Daniel Edward Badt , David Richard Marquardt , Satyanarayana Billekal Rao , Lance Warren Russell , Larry Steven Wise
IPC分类号： H04L12/56 , H04L29/06 , H04L29/08 , H04M7/00 , G01R31/08
CPC分类号： H04L47/10 , H04L29/06 , H04L47/36 , H04L69/166 , H04L69/16 , H04L69/24 , H04L69/325 , H04M7/006
摘要： A local system issues an ICMP echo request packet with a size based on an initial PMTU value corresponding to that of the local system's interface MTU. When an ICMP needfrag error packet is received by the local system, this signifies that the initial PMTU value was too large for packets of corresponding size to be transmitted through the Internet without fragmentation. The value is accordingly decreased by the local system and a next ICMP echo request packet transmitted through the Internet. The process iterates until an ICMP echo request packet is successfully transmitted through the Internet to a target system. In response thereto, the target system transmits an ICMP echo response packet back through the Internet to the local system, thereby indicating that the last-sent ICMP echo request packet from the local system had the correct PMTU value which is thereafter assumed to be the correct PMTU.
摘要翻译：本地系统发布基于与本地系统接口MTU对应的初始PMTU值的ICMP回显请求报文。当本地系统接收到ICMP需要的报文错误报文时，表示初始的PMTU值对于相应大小的报文来说太大，无法通过因特网进行传输。因此本地系统和通过因特网传输的下一个ICMP回显请求报文相应地减小了该值。该过程迭代直到ICMP回显请求分组通过因特网成功传输到目标系统。响应于此，目标系统通过因特网向本地系统发送ICMP回应响应分组，从而指示来自本地系统的最后发送的ICMP回应请求分组具有正确的PMTU值，其后被认为是正确的 PMTU。

5. 发明授权

US06754700B1 Method and apparatus for monitoring and adjusting bandwidth usage in a browser 失效
标题翻译：用于监视和调整浏览器中带宽使用情况的方法和装置
公开(公告)号：US06754700B1
公开(公告)日：2004-06-22
申请号：US09477567
申请日：2000-01-06
申请人： Robert B. Gordon , David Richard Marquardt , Gerald Francis McBrearty , Shawn Patrick Mullen , Johnny Meng-Han Shieh
发明人： Robert B. Gordon , David Richard Marquardt , Gerald Francis McBrearty , Shawn Patrick Mullen , Johnny Meng-Han Shieh
IPC分类号： G06F1516
CPC分类号： G06F17/30899 , H04L67/02 , H04L67/06 , H04L67/22 , H04L67/322 , H04L69/329
摘要： A method and apparatus in a data processing system for managing receipt of data by a browser through a communications interface. Responsive to a user input, a first rate at which data is received is reduced at the browser to a decreased rate. A determination is then made as to whether incoming data for the communications interface is being received at a rate less than a threshold. Responsive to a determination that incoming data for the communications interface is being received at a rate less than the threshold, the first rate at which data is at the browser is restored.
摘要翻译：一种用于管理浏览器通过通信接口接收数据的数据处理系统中的方法和装置。响应于用户输入，接收数据的第一速率在浏览器处被减少到降低的速率。然后确定正在以小于阈值的速率接收通信接口的输入数据。响应于确定以小于阈值的速率接收通信接口的输入数据，恢复数据在浏览器处的第一速率。

6. 发明授权

US5892753A System and method for dynamically refining PMTU estimates in a multimedia datastream internet system 失效
标题翻译：用于在多媒体数据流互联网系统中动态地提炼PMTU估计的系统和方法
公开(公告)号：US5892753A
公开(公告)日：1999-04-06
申请号：US755867
申请日：1996-12-02
申请人： Daniel Edward Badt , David Richard Marquardt , Satyanarayana Billekal Rao , Lance Warren Russell , Larry Steven Wise
发明人： Daniel Edward Badt , David Richard Marquardt , Satyanarayana Billekal Rao , Lance Warren Russell , Larry Steven Wise
IPC分类号： H04L12/56
CPC分类号： H04L47/10 , H04L47/36
摘要： A local system issues an ICMP echo request packet with a size based on an initial PMTU value corresponding to that of the local system's interface MTU. When an ICMP needfrag error packet is received by the local system, this signifies that the initial PMTU value was too large for packets of corresponding size to be transmitted through the Internet without fragmentation. The value is accordingly decreased by the local system and a next ICMP echo request packet transmitted through the Internet. The process iterates until an ICMP echo request packet is successfully transmitted through the Internet to a target system. In response thereto, the target system transmits an ICMP echo response packet back through the Internet to the local system, thereby indicating that the last-sent ICMP echo request packet from the local system had the correct PMTU value which is thereafter assumed to be the correct PMTU. An MTU application, MTU table, and corresponding application program interfaces and controls are provided in the system for dynamically maintaining PMTU value estimates and for providing next estimates of PMTU. These next estimates are accessed from the table in next ICMP echo request packet transmissions when an ICMP needfrag error packet does not contain an MTU value returned from a router in the Internet.
摘要翻译：本地系统发布基于与本地系统接口MTU对应的初始PMTU值的ICMP回显请求报文。当本地系统接收到ICMP需要的报文错误报文时，表示初始的PMTU值对于相应大小的报文来说太大，无法通过因特网进行传输。因此本地系统和通过因特网传输的下一个ICMP回显请求报文相应地减小了该值。该过程迭代直到ICMP回显请求分组通过因特网成功传输到目标系统。响应于此，目标系统通过因特网向本地系统发送ICMP回应响应分组，从而指示来自本地系统的最后发送的ICMP回应请求分组具有正确的PMTU值，其后被认为是正确的 PMTU。在系统中提供MTU应用，MTU表和相应的应用程序接口和控制，用于动态维护PMTU值估计和提供PMTU的下一个估计。当ICMP需要帧错误分组不包含从因特网中的路由器返回的MTU值时，从下一个ICMP回显请求分组传输中的表中访问这些下一个估计。

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