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1. 发明授权

US07369500B1 Dynamic queue threshold extensions to random early detection 有权
标题翻译：动态队列阈值扩展到随机早期检测
公开(公告)号：US07369500B1
公开(公告)日：2008-05-06
申请号：US10608215
申请日：2003-06-30
申请人： Shawn Gallagher , Stephen Branam , Thomas A. Lemaire , Michael E. Lipman , Ryan Ross
发明人： Shawn Gallagher , Stephen Branam , Thomas A. Lemaire , Michael E. Lipman , Ryan Ross
IPC分类号： H04L12/26 , G06F15/16
CPC分类号： H04L47/10 , H04L45/60
摘要： A buffer memory may be configured to temporarily store data in a number of queues. A processor may be configured to measure a fullness of the buffer memory. The processor may also be configured to assign sizes to the number of queues based on the fullness of the buffer memory. The processor may also adjust thresholds of drop profiles associated with the number of queues based on the sizes assigned to the number of queues.
摘要翻译：缓冲存储器可以被配置为临时将数据存储在多个队列中。处理器可以被配置为测量缓冲存储器的丰满度。处理器还可以被配置为基于缓冲存储器的充满度来将大小分配给队列的数量。处理器还可以基于分配给队列数量的大小来调整与队列数量相关联的丢弃简档的阈值。

2. 发明授权

US07835279B1 Method and apparatus for shared shaping 有权
标题翻译：用于共享成形的方法和装置
公开(公告)号：US07835279B1
公开(公告)日：2010-11-16
申请号：US12056466
申请日：2008-03-27
申请人： Thomas A. Lemaire , John C. Carney , Paul Giacobbe , Michael E. Lipman , Ryan T. Ross
发明人： Thomas A. Lemaire , John C. Carney , Paul Giacobbe , Michael E. Lipman , Ryan T. Ross
IPC分类号： H04J3/14 , H04J3/24 , H04L12/28
CPC分类号： H04L47/10 , H04L12/5601 , H04L47/22 , H04L47/2416 , H04L47/2441 , H04L47/25 , H04L47/39 , H04L2012/5651 , H04L2012/5679
摘要： A method and a network device for sharing bandwidth among a group of classes of traffic for an interface are provided. Bandwidth may be allocated to at least one traffic class of a first priority for the interface. At least some unused bandwidth of the at least one traffic class may be allocated to at least one other traffic class of a second priority for the interface. In some implementations, weighted constituents may be allocated unused interface bandwidth based on an assigned weight of each of the weighted constituents of the interface.
摘要翻译：提供了一种用于在接口的一组业务类中共享带宽的方法和网络设备。带宽可以被分配给接口的至少一个具有第一优先级的业务类别。所述至少一个业务类别的至少一些未使用的带宽可被分配给所述接口的第二优先级的至少一个其他业务类别。在一些实施方案中，可以基于接口的每个加权成分的分配权重来分配加权成分可用的接口带宽。

3. 发明授权

US07369495B1 Method and apparatus for shared shaping 有权
标题翻译：用于共享成形的方法和装置
公开(公告)号：US07369495B1
公开(公告)日：2008-05-06
申请号：US10934558
申请日：2004-09-07
申请人： Thomas A. Lemaire , John C. Carney , Paul Giacobbe , Michael E. Lipman , Ryan T. Ross
发明人： Thomas A. Lemaire , John C. Carney , Paul Giacobbe , Michael E. Lipman , Ryan T. Ross
IPC分类号： H04J3/14 , H04J3/24 , H04L12/28
CPC分类号： H04L47/10 , H04L12/5601 , H04L47/22 , H04L47/2416 , H04L47/2441 , H04L47/25 , H04L47/39 , H04L2012/5651 , H04L2012/5679
摘要： A method and a network device for sharing bandwidth among a group of classes of traffic for an interface are provided. Bandwidth may be allocated to at least one traffic class of a first priority for the interface. At least some unused bandwidth of the at least one traffic class may be allocated to at least one other traffic class of a second priority for the interface. In some implementations, weighted constituents may be allocated unused interface bandwidth based on an assigned weight of each of the weighted constituents of the interface.
摘要翻译：提供了一种用于在接口的一组业务类中共享带宽的方法和网络设备。带宽可以被分配给接口的至少一个具有第一优先级的业务类别。所述至少一个业务类别的至少一些未使用的带宽可被分配给所述接口的第二优先级的至少一个其他业务类别。在一些实施方案中，可以基于接口的每个加权成分的分配权重来分配加权成分可用的接口带宽。

4. 发明申请

US20120027015A1 Application of Services in a Packet Switching Device 有权
标题翻译：服务在分组交换设备中的应用
公开(公告)号：US20120027015A1
公开(公告)日：2012-02-02
申请号：US12844786
申请日：2010-07-27
申请人： John C. Carney , Timothy P. Donahue , Michael E. Lipman , David Delano Ward , Doron Oz
发明人： John C. Carney , Timothy P. Donahue , Michael E. Lipman , David Delano Ward , Doron Oz
IPC分类号： H04L12/56
CPC分类号： H04L29/12339 , H04L61/2503
摘要： A service is applied in a packet switching device to both directions of a flow of packets through the packet switching device, with the application of this Layer-4 to layer-7 service to one direction requiring state information shared from the application of the service to packets traversing in the other direction. The service (e.g. firewall, network address translation) can be applied by different processing complexes which do not share memory; thus, state information is communicated between the processing complexes. When the service is applied by a single processing complex, packets can be directed explicitly to the single processing complex. The inline application of services in a packet switching system typically eliminates the need to change a packet's path through the packet switching system to that through a dedicated application server, and may eliminate the need for a dedicated services card or blade server.
摘要翻译：在分组交换设备中通过分组交换设备将分组交换设备应用于分组流的两个方向，通过将该第4层到第7层服务应用于需要从服务的应用共享的状态信息到一个方向数据包在另一个方向上移动。服务（例如防火墙，网络地址转换）可以由不共享存储器的不同处理复合体应用; 因此，在处理复合体之间传送状态信息。当服务由单个处理复合体应用时，数据包可以被明确地定向到单个处理复合体。分组交换系统中的业务的在线应用通常消除了通过分组交换系统将数据包的路径改变为通过专用应用服务器的路径的需要，并且可以消除对专用服务卡或刀片服务器的需要。

5. 发明授权

US09952877B2 Booting a physical device using custom-created frozen partially-booted virtual machines 有权
公开(公告)号：US09952877B2
公开(公告)日：2018-04-24
申请号：US14259444
申请日：2014-04-23
申请人： Akash R. Deshpande , Michael E. Lipman , Peter Weinberger
发明人： Akash R. Deshpande , Michael E. Lipman , Peter Weinberger
IPC分类号： G06F9/4401 , G06F9/44 , G06F9/455
CPC分类号： G06F9/4401 , G06F9/45558 , G06F2009/45575
摘要： In one embodiment, a physical device (e.g., packet switching device, computer, server) is booted using custom-created frozen partially-booted virtual machines, avoiding the time required for an end-to-end boot process. In one embodiment while the system is operating under a current version, a partially-booted virtual image of a new operating version for each of multiple processing elements of the device is produced according to static configuration information specific to the device, with each of these partially-booted virtual machines frozen. The device is rebooted to a fully operational device by unfreezing these partially-booted virtual machines, thus removing this portion of a boot process from the real-time booting of the device. The generation of the frozen partially-booted virtual machines is advantageously performed by the device itself based on current static configuration information and the availability of the specific hardware configuration of the device.

6. 发明授权

US09596175B2 Virtual machines in a packet switching device 有权
标题翻译：分组交换设备中的虚拟机
公开(公告)号：US09596175B2
公开(公告)日：2017-03-14
申请号：US14872981
申请日：2015-10-01
申请人： Akash R. Deshpande , John H. W. Bettink , Michael E. Lipman , Pradosh Mohapatra , Kannan Devarajan , Prabhakara R. Yellai , Rajagopalan M. Ammanur , Samir D. Thoria
发明人： Akash R. Deshpande , John H. W. Bettink , Michael E. Lipman , Pradosh Mohapatra , Kannan Devarajan , Prabhakara R. Yellai , Rajagopalan M. Ammanur , Samir D. Thoria
IPC分类号： H04L12/28 , H04L12/713 , H04L12/773
CPC分类号： H04L45/586 , H04L45/60
摘要： In one embodiment, a packet switching device creates multiple virtual packet switching devices within the same physical packet switching device using virtual machines and sharing particular physical resources of the packet switching device. One embodiment uses this functionality to change the operating version (e.g., upgrade or downgrade) of the packet switching device by originally operating according to a first operating version, operating according to both a first and second operating version, and then ceasing operating according to the first operating version. Using such a technique, a packet switching device can be upgraded or downgraded while fully operating (e.g., without having to reboot line cards and route processing engines).
摘要翻译：在一个实施例中，分组交换设备使用虚拟机在同一物理分组交换设备内创建多个虚拟分组交换设备并共享分组交换设备的特定物理资源。一个实施例使用该功能来通过原始根据第一操作版本操作来改变分组交换设备的操作版本（例如，升级或降级），根据第一和第二操作版本操作，然后根据第第一个操作版本。使用这种技术，分组交换设备可以在完全操作的同时进行升级或降级（例如，不必重启线路卡和路由处理引擎）。

7. 发明授权

US08774185B2 Application of services in a packet switching device 有权
标题翻译：服务在分组交换设备中的应用
公开(公告)号：US08774185B2
公开(公告)日：2014-07-08
申请号：US12844786
申请日：2010-07-27
申请人： John C. Carney , Timothy P. Donahue , Michael E. Lipman , David Delano Ward , Doron Oz
发明人： John C. Carney , Timothy P. Donahue , Michael E. Lipman , David Delano Ward , Doron Oz
IPC分类号： H04L12/56
CPC分类号： H04L29/12339 , H04L61/2503
摘要： A service is applied in a packet switching device to both directions of a flow of packets through the packet switching device, with the application of this Layer-4 to layer-7 service to one direction requiring state information shared from the application of the service to packets traversing in the other direction. The service (e.g. firewall, network address translation) can be applied by different processing complexes which do not share memory; thus, state information is communicated between the processing complexes. When the service is applied by a single processing complex, packets can be directed explicitly to the single processing complex. The inline application of services in a packet switching system typically eliminates the need to change a packet's path through the packet switching system to that through a dedicated application server, and may eliminate the need for a dedicated services card or blade server.
摘要翻译：在分组交换设备中通过分组交换设备将分组交换设备应用于分组流的两个方向，通过将该第4层到第7层服务应用于需要从服务的应用共享的状态信息到一个方向数据包在另一个方向上移动。服务（例如防火墙，网络地址转换）可以由不共享存储器的不同处理复合体应用; 因此，在处理复合体之间传送状态信息。当服务由单个处理复合体应用时，数据包可以被明确地定向到单个处理复合体。分组交换系统中的业务的在线应用通常消除了通过分组交换系统将数据包的路径改变为通过专用应用服务器的路径的需要，并且可以消除对专用服务卡或刀片服务器的需要。

8. 发明授权

US07395538B1 Scalable packet processing systems and methods 有权
标题翻译：可扩展的数据包处理系统和方法
公开(公告)号：US07395538B1
公开(公告)日：2008-07-01
申请号：US10382863
申请日：2003-03-07
申请人： John C. Carney , Michael E. Lipman
发明人： John C. Carney , Michael E. Lipman
IPC分类号： G06F9/46 , G06F15/00 , G06F7/38
CPC分类号： H04L67/1002 , H04L45/60
摘要： A data processing architecture includes multiple processors connected in series between a load balancer and reorder logic. The load balancer is configured to receive data and distribute the data across the processors. Appropriate ones of the processors are configured to process the data. The reorder logic is configured to receive the data processed by the processors, reorder the data, and output the reordered data.
摘要翻译：数据处理架构包括在负载平衡器和重新排序逻辑之间串联连接的多个处理器。负载平衡器被配置为接收数据并在整个处理器上分发数据。将适当的处理器配置为处理数据。重排序逻辑被配置为接收由处理器处理的数据，重新排序数据并输出重新排序的数据。

9. 发明授权

US06192051B1 Network router search engine using compressed tree forwarding table 有权
标题翻译：网络路由器搜索引擎使用压缩树转发表
公开(公告)号：US06192051B1
公开(公告)日：2001-02-20
申请号：US09259064
申请日：1999-02-26
申请人： Michael E. Lipman , Russell L. Heyda
发明人： Michael E. Lipman , Russell L. Heyda
IPC分类号： H04L1256
CPC分类号： H04L45/742
摘要： Network routing apparatus employs multi-level tree data structures in a centralized routing table and in distributed forwarding tables. Each level of each structure is associated with a different field of a network address appearing in received packets. Pointers in each structure are used to identify either an address of a next hop network, or a next-level tree to be examined for a next-hop address. An uncompressed tree routing table uses directly addressed trees in order to simplify the storage and retrieval of pointers, and the next-tree pointers directly identify next trees. Compressed tree forwarding tables are generated from the uncompressed routing table by reducing the number of pointers stored at one or more levels to substantially the number of unique next hop addresses associated with network addresses at that level. A single mapping table maps pointer values at one level to the locations of trees at the next level in the compressed trees. Next hop address lookup logic performs lookups in accordance with the structure of the compressed trees. Also, the lookup logic stores and selectively operates on multiple forwarding tables in order to provide support for virtual router operation.
摘要翻译：网络路由设备在集中式路由表和分布式转发表中采用多级树状数据结构。每个结构的每个级别与出现在接收到的分组中的网络地址的不同字段相关联。每个结构中的指针用于标识下一跳网络的地址或下一跳地址要检查的下一级树。未压缩的树路由表使用直接寻址的树来简化指针的存储和检索，并且下一个树指针直接识别下一个树。通过将存储在一个或多个级别的指针的数量减少到与该级别的网络地址相关联的唯一的下一跳地址的数量，从未压缩的路由表生成压缩树转发表。单个映射表将一级的指针值映射到压缩树中下一级树的位置。下一跳地址查找逻辑根据压缩树的结构执行查找。此外，查找逻辑存储并选择性地对多个转发表进行操作，以便为虚拟路由器操作提供支持。

10. 发明申请

US20140112342A1 Cascaded Communication of Serialized Data Streams Through Devices and Their Resulting Operation 有权
标题翻译：串行数据流通过设备的级联通信及其产生的操作
公开(公告)号：US20140112342A1
公开(公告)日：2014-04-24
申请号：US13658960
申请日：2012-10-24
申请人： John W. Marshall , Steven Philip Holmes , Jeffrey Nelson Shaw , Michael E. Lipman , Matthew Harper , Mohammed Ismael Tatar , James A. Markevitch
发明人： John W. Marshall , Steven Philip Holmes , Jeffrey Nelson Shaw , Michael E. Lipman , Matthew Harper , Mohammed Ismael Tatar , James A. Markevitch
IPC分类号： H04L12/56
CPC分类号： H04J3/0685 , H04J3/047
摘要： In one embodiment, an apparatus cascades groups of serialized data streams through devices, and performs operations based on information communicated therein. A received group of serialized data streams is aligned, but not framed, and forwarded to a next device (e.g., a next stage in a linear or tree cascaded formation of devices). Eliminating the framing and subsequent serialization operations performed on the received group of serialized data streams reduces the latency of communications through the cascaded devices, which can be significant when considered in relation to the high-speed communication rates. The received group of serialized data streams is also framed to create a sequence of data frames for processing (e.g., associative memory lookup operations, controlling multiplexing of received downstream serialized data streams, general or other processing) within the device.
摘要翻译：在一个实施例中，设备通过设备级联串联数据流组，并且基于在其中传达的信息执行操作。所接收的一组串行化数据流被对齐，但不被成帧，并被转发到下一个设备（例如，设备的线性或树形级联形成中的下一级）。消除对所接收的串行化数据流组执行的成帧和随后的串行化操作减少了通过级联设备的通信的延迟，当考虑高速通信速率时，这可能是重要的。接收到的串行数据流组也被成帧以创建用于处理（例如，关联存储器查找操作，控制所接收的下游串行化数据流的多路复用，通用或其它处理）的数据帧序列。

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