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91. 发明授权

US07467285B2 Maintaining shadow page tables in a sequestered memory region 有权
标题翻译：在隔离内存区域中维护阴影页表
公开(公告)号：US07467285B2
公开(公告)日：2008-12-16
申请号：US11191468
申请日：2005-07-27
申请人： Hormuzd M. Khosravi , Uday Savagaonkar , Ravi Sahita , Priya Rajagopal
发明人： Hormuzd M. Khosravi , Uday Savagaonkar , Ravi Sahita , Priya Rajagopal
IPC分类号： G06F12/00
CPC分类号： G06F12/145 , G06F12/1009 , G06F21/52 , G06F21/554
摘要： Provided are a method, system, program and device for maintaining shadow page tables in a sequestered memory region. A first processor executing an application invokes a second processor to create a shadow page table used for address translation for the application in a sequestered memory region non-alterable by processes controlled by an operating system executed by the first processor. The shadow page table references at least one page in an operating system memory region accessible to processes controlled by the operating system.
摘要翻译：提供了一种用于在隔离存储器区域中保持阴影页表的方法，系统，程序和设备。执行应用的第一处理器调用第二处理器来创建用于经由由第一处理器执行的操作系统控制的进程不可修改的存储存储器区域中的应用的地址转换的影子页表。影子页面表引用由操作系统控制的进程可访问的操作系统存储器区域中的至少一个页面。

92. 发明授权

US07200146B2 System and method of IP packet forwarding across directly connected forwarding elements 有权
标题翻译：通过直接连接的转发元素进行IP报文转发的系统和方法
公开(公告)号：US07200146B2
公开(公告)日：2007-04-03
申请号：US09932294
申请日：2001-08-17
申请人： Hormuzd M. Khosravi , Sanjay Bakshi
发明人： Hormuzd M. Khosravi , Sanjay Bakshi
IPC分类号： H04L12/28 , H04L12/56 , H04L12/40
CPC分类号： H04L45/00 , H04L45/583
摘要： Systems and methods are provided through which a packet is transferred within a router through the use of a switch-label. The switch-label is generated upon receipt by a component of the router. The switch label indicates an address within the router of another component within the router that will transmit the packet to a destination outside the router. The switch-label uses an abbreviated address of components within the router. The address is abbreviated because the number of potential addresses within a router is significantly less than the number of addresses outside the router that require a fill address. As a result, transferring of the packet within the router is faster because processing the switch-label using an abbreviated address is faster than processing a full address.
摘要翻译：提供了系统和方法，通过该系统和方法，通过使用交换机标签在分组中传送分组。交换机标签在路由器的组件接收时生成。交换机标签指示路由器内路由器内的路由器中的一个地址，该地址将传送数据包到路由器外部的目的地。交换机标签使用路由器内的组件的缩写地址。地址缩写是因为路由器中的潜在地址数明显少于需要完整地址的路由器以外的地址数量。因此，由于使用缩写地址处理交换机标签比处理完整地址要快，所以路由器内的数据包传输速度更快。

93. 发明授权

US07197664B2 Stateless redundancy in a network device 有权
标题翻译：网络设备中的无状态冗余
公开(公告)号：US07197664B2
公开(公告)日：2007-03-27
申请号：US10282457
申请日：2002-10-28
申请人： Hormuzd M. Khosravi
发明人： Hormuzd M. Khosravi
IPC分类号： G06F11/00
CPC分类号： G06F11/2038 , G06F11/2025
摘要： A network device may be configured with a primary control element and a second control element. Both the primary and secondary control elements may receive information from one or more forwarding elements. Both the primary and secondary control elements may send control information to the forwarding element. The control information from the secondary control element, however, may be discarded either at the forwarding element or at a blocking agent between the secondary control element and the forwarding element. In this manner, the secondary control element may be synchronized with the primary control element in a stateless manner. If a failure condition is detected, control plane operations may be performed using the secondary control element. As a result, the network device may become fault tolerant, and experience reduced amounts of down time due to failure of one or more elements within the network device.
摘要翻译：网络设备可以配置有主控制元件和辅助控制元件。主控制元件和辅助控制元件都可以从一个或多个转发元件接收信息。主控制元件和辅助控制元件都可以向转发元件发送控制信息。然而，来自辅助控制元件的控制信息可以在第二控制元件和转发元件之间的转发元件或阻塞代理处丢弃。以这种方式，次级控制元件可以以无状态的方式与主控制元件同步。如果检测到故障条件，则可以使用辅助控制元件执行控制平面操作。结果，网络设备可能变得容错，并且由于网络设备内的一个或多个元件的故障而经历减少的停机时间。

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