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1. 发明授权

US08611216B2 Maintaining packet order using hash-based linked-list queues 有权
标题翻译：使用基于哈希的链表列表维护数据包顺序
公开(公告)号：US08611216B2
公开(公告)日：2013-12-17
申请号：US13250765
申请日：2011-09-30
申请人： Dennis C. Ferguson , Philippe Lacroute , Chi-Chung Chen , Gerald Cheung , Tatao Chuang , Pankaj Patel , Viswesh Ananthakrishnan
发明人： Dennis C. Ferguson , Philippe Lacroute , Chi-Chung Chen , Gerald Cheung , Tatao Chuang , Pankaj Patel , Viswesh Ananthakrishnan
IPC分类号： H04J1/16 , H04L12/66 , H04L12/28
CPC分类号： H04L49/90 , H04L47/50 , H04L47/6225 , H04L49/3036 , H04L49/351 , H04L49/901 , H04L49/9094
摘要： Ordering logic ensures that data items being processed by a number of parallel processing units are unloaded from the processing units in the original per-flow order that the data items were loaded into the parallel processing units. The ordering logic includes a pointer memory, a tail vector, and a head vector. Through these three elements, the ordering logic keeps track of a number of “virtual queues” corresponding to the data flows. A round robin arbiter unloads data items from the processing units only when a data item is at the head of its virtual queue.
摘要翻译：订购逻辑确保由多个并行处理单元处理的数据项以原始每流顺序从处理单元卸载，数据项被加载到并行处理单元中。排序逻辑包括指针存储器，尾部矢量和头部矢量。通过这三个元素，排序逻辑跟踪与数据流相对应的多个“虚拟队列”。循环仲裁器只有在数据项位于其虚拟队列的头部时才从处理单元中卸载数据项。

2. 发明授权

US08503304B2 Filtering and route lookup in a switching device 有权
标题翻译：在交换设备中过滤和路由查找
公开(公告)号：US08503304B2
公开(公告)日：2013-08-06
申请号：US13539164
申请日：2012-06-29
申请人： Dennis C. Ferguson , Rajiv Patel , Gerald Cheung , Pradeep Sindhu
发明人： Dennis C. Ferguson , Rajiv Patel , Gerald Cheung , Pradeep Sindhu
IPC分类号： H04L12/26
CPC分类号： H04L45/745 , H04L45/00 , H04L45/60 , H04L45/7457 , H04L47/10 , H04L47/11 , H04L47/125 , H04L47/20 , H04L49/205 , H04L49/3009 , H04L49/3036 , H04L49/3072 , H04L63/0227 , H04L63/1458 , H04L69/22
摘要： Methods and devices for processing packets are provided. The processing device may Include an input interface for receiving data units containing header information of respective packets; a first module configurable to perform packet filtering based on the received data units; a second module configurable to perform traffic analysis based on the received data units; a third module configurable to perform load balancing based on the received data units; and a fourth module configurable to perform route lookups based on the received data units.
摘要翻译：提供了处理数据包的方法和设备。处理装置可以包括用于接收包含各个分组的报头信息的数据单元的输入接口; 第一模块，可配置为基于所接收的数据单元执行分组过滤; 第二模块，可配置为基于所接收的数据单元执行流量分析; 第三模块，可配置为基于所接收的数据单元执行负载平衡; 以及第四模块，其可配置为基于所接收的数据单元执行路线查找。

3. 发明申请

US20120297083A1 FILTERING AND ROUTE LOOKUP IN A SWITCHING DEVICE 有权
标题翻译：切换设备中的过滤和路由查询
公开(公告)号：US20120297083A1
公开(公告)日：2012-11-22
申请号：US13539164
申请日：2012-06-29
申请人： Dennis C. FERGUSON , Rajiv PATEL , Gerald CHEUNG , Pradeep SINDHU
发明人： Dennis C. FERGUSON , Rajiv PATEL , Gerald CHEUNG , Pradeep SINDHU
IPC分类号： G06F15/16
CPC分类号： H04L45/745 , H04L45/00 , H04L45/60 , H04L45/7457 , H04L47/10 , H04L47/11 , H04L47/125 , H04L47/20 , H04L49/205 , H04L49/3009 , H04L49/3036 , H04L49/3072 , H04L63/0227 , H04L63/1458 , H04L69/22
摘要： Methods and devices for processing packets are provided. The processing device may Include an input interface for receiving data units containing header information of respective packets; a first module configurable to perform packet filtering based on the received data units; a second module configurable to perform traffic analysis based on the received data units; a third module configurable to perform load balancing based on the received data units; and a fourth module configurable to perform route lookups based on the received data units.
摘要翻译：提供了处理数据包的方法和设备。处理装置可以包括用于接收包含相应分组的报头信息的数据单元的输入接口; 第一模块，可配置为基于所接收的数据单元执行分组过滤; 第二模块，可配置为基于所接收的数据单元执行流量分析; 第三模块，可配置为基于所接收的数据单元执行负载平衡; 以及第四模块，其可配置为基于所接收的数据单元执行路线查找。

4. 发明申请

US20120275459A1 PROCESSING PACKETS BY A NETWORK DEVICE 有权
标题翻译：通过网络设备处理分组
公开(公告)号：US20120275459A1
公开(公告)日：2012-11-01
申请号：US13460697
申请日：2012-04-30
申请人： Dennis C. FERGUSON , Rajiv PATEL , Gerald CHEUNG , Pradeep S. SINDHU
发明人： Dennis C. FERGUSON , Rajiv PATEL , Gerald CHEUNG , Pradeep S. SINDHU
IPC分类号： H04L12/56
CPC分类号： H04L45/745 , H04L29/06095 , H04L29/0653 , H04L45/74 , H04L47/10 , H04L49/3009 , H04L49/309 , H04L69/22
摘要： A method and apparatus for performing a lookup in a switching device of a packet switched network where the lookup includes a plurality of distinct operations each of which returns a result that includes a pointer to a next operation in a sequence of operations for the lookup. The method includes determining a first lookup operation to be executed, executing the first lookup operation including returning a result and determining if the result includes a pointer to another lookup operation in the sequence of operations. If the result includes a pointer to another lookup operation, the lookup operation indicated by the result is executed. Else, the lookup is terminated.
摘要翻译：一种用于在分组交换网络的交换设备中执行查找的方法和装置，其中所述查找包括多个不同的操作，每个操作返回包括用于所述查找的操作序列中的下一个操作的指针的结果。该方法包括确定要执行的第一查找操作，执行第一查找操作，包括返回结果并确定结果是否包含指向操作序列中的另一查找操作的指针。如果结果包含指向另一个查找操作的指针，则执行结果指示的查找操作。否则，查找终止。

5. 发明授权

US08238246B2 Filtering and route lookup in a switching device 有权
标题翻译：在交换设备中过滤和路由查找
公开(公告)号：US08238246B2
公开(公告)日：2012-08-07
申请号：US13163477
申请日：2011-06-17
申请人： Dennis C. Ferguson , Rajiv Patel , Gerald Cheung , Pradeep Sindhu
发明人： Dennis C. Ferguson , Rajiv Patel , Gerald Cheung , Pradeep Sindhu
IPC分类号： H04L12/26
CPC分类号： H04L45/745 , H04L45/00 , H04L45/60 , H04L45/7457 , H04L47/10 , H04L47/11 , H04L47/125 , H04L47/20 , H04L49/205 , H04L49/3009 , H04L49/3036 , H04L49/3072 , H04L63/0227 , H04L63/1458 , H04L69/22
摘要： Methods and devices for processing packets are provided. The processing device may Include an input interface for receiving data units containing header information of respective packets; a first module configurable to perform packet filtering based on the received data units; a second module configurable to perform traffic analysis based on the received data units; a third module configurable to perform load balancing based on the received data units; and a fourth module configurable to perform route lookups based on the received data units.
摘要翻译：提供了处理数据包的方法和设备。处理装置可以包括用于接收包含相应分组的报头信息的数据单元的输入接口; 第一模块，可配置为基于所接收的数据单元执行分组过滤; 第二模块，可配置为基于所接收的数据单元执行流量分析; 第三模块，可配置为基于所接收的数据单元执行负载平衡; 以及第四模块，其可配置为基于所接收的数据单元执行路线查找。

6. 发明授权

US08189576B2 Systems and methods for processing packets with multiple engines 有权
标题翻译：用多个引擎处理数据包的系统和方法
公开(公告)号：US08189576B2
公开(公告)日：2012-05-29
申请号：US10920237
申请日：2004-08-18
申请人： Dennis C. Ferguson , Rajiv Patel , Gerald Cheung , Pradeep S. Sindhu
发明人： Dennis C. Ferguson , Rajiv Patel , Gerald Cheung , Pradeep S. Sindhu
IPC分类号： H04L12/56
CPC分类号： H04L45/745 , H04L29/06095 , H04L29/0653 , H04L45/74 , H04L47/10 , H04L49/3009 , H04L49/309 , H04L69/22
摘要： A system includes an input device configured to receive a packet having a header and a packet processing device. The packet processing device is configured to examine the header, identify at least one function from a group of functions based on at least a portion of the header, where the group of functions includes an index table lookup function, a filtering function, and a longest best match lookup function, perform the identified at least one function for the packet to obtain a result, and forward the packet using the result.
摘要翻译：系统包括被配置为接收具有报头和分组处理设备的分组的输入设备。分组处理设备被配置为检查报头，基于报头的至少一部分来识别来自一组功能的至少一个功能，其中功能组包括索引表查找功能，过滤功能和最长最佳匹配查找功能，对分组执行识别的至少一个功能以获得结果，并使用结果转发数据包。

7. 发明申请

US20110264822A1 FILTERING AND ROUTE LOOKUP IN A SWITCHING DEVICE 有权
标题翻译：切换设备中的过滤和路由查询
公开(公告)号：US20110264822A1
公开(公告)日：2011-10-27
申请号：US13163477
申请日：2011-06-17
申请人： Dennis C. FERGUSON , Rajiv PATEL , Gerald CHEUNG , Pradeep SINDHU
发明人： Dennis C. FERGUSON , Rajiv PATEL , Gerald CHEUNG , Pradeep SINDHU
IPC分类号： G06F15/16
CPC分类号： H04L45/745 , H04L45/00 , H04L45/60 , H04L45/7457 , H04L47/10 , H04L47/11 , H04L47/125 , H04L47/20 , H04L49/205 , H04L49/3009 , H04L49/3036 , H04L49/3072 , H04L63/0227 , H04L63/1458 , H04L69/22
摘要： Methods and devices for processing packets are provided. The processing device may Include an input interface for receiving data units containing header information of respective packets; a first module configurable to perform packet filtering based on the received data units; a second module configurable to perform traffic analysis based on the received data units; a third module configurable to perform load balancing based on the received data units; and a fourth module configurable to perform route lookups based on the received data
摘要翻译：提供了处理数据包的方法和设备。处理装置可以包括用于接收包含相应分组的报头信息的数据单元的输入接口; 第一模块，可配置为基于所接收的数据单元执行分组过滤; 第二模块，可配置为基于所接收的数据单元执行流量分析; 第三模块，可配置为基于所接收的数据单元执行负载平衡; 以及第四模块，可配置为基于所接收的数据执行路线查找

8. 发明授权

US07764606B1 Maintaining packet order using hash-based linked-list queues 有权
标题翻译：使用基于哈希的链表列表维护数据包顺序
公开(公告)号：US07764606B1
公开(公告)日：2010-07-27
申请号：US11755292
申请日：2007-05-30
申请人： Dennis C. Ferguson , Philippe Lacroute , Chi-Chung Chen , Gerald Cheung , Tatao Chuang , Pankaj Patel , Viswesh Ananthakrishnan
发明人： Dennis C. Ferguson , Philippe Lacroute , Chi-Chung Chen , Gerald Cheung , Tatao Chuang , Pankaj Patel , Viswesh Ananthakrishnan
IPC分类号： H04L1/00 , H04L12/56 , H04L12/28
CPC分类号： H04L49/90 , H04L47/50 , H04L47/6225 , H04L49/3036 , H04L49/351 , H04L49/901 , H04L49/9094
摘要： Ordering logic ensures that data items being processed by a number of parallel processing units are unloaded from the processing units in the original per-flow order that the data items were loaded into the parallel processing units. The ordering logic includes a pointer memory, a tail vector, and a head vector. Through these three elements, the ordering logic keeps track of a number of “virtual queues” corresponding to the data flows. A round robin arbiter unloads data items from the processing units only when a data item is at the head of its virtual queue.
摘要翻译：订购逻辑确保由多个并行处理单元处理的数据项以原始每流顺序从处理单元卸载，数据项被加载到并行处理单元中。排序逻辑包括指针存储器，尾部矢量和头部矢量。通过这三个元素，排序逻辑跟踪与数据流相对应的多个“虚拟队列”。循环仲裁器只有在数据项位于其虚拟队列的头部时才从处理单元中卸载数据项。

9. 发明授权

US07215637B1 Systems and methods for processing packets 有权
标题翻译：用于处理数据包的系统和方法
公开(公告)号：US07215637B1
公开(公告)日：2007-05-08
申请号：US10017719
申请日：2001-12-14
申请人： Dennis C. Ferguson , Rajiv Patel , Gerald Cheung , Pradeep Sindhu
发明人： Dennis C. Ferguson , Rajiv Patel , Gerald Cheung , Pradeep Sindhu
IPC分类号： H04L12/26
CPC分类号： H04L45/745 , H04L45/00 , H04L45/60 , H04L45/7457 , H04L47/10 , H04L47/11 , H04L47/125 , H04L47/20 , H04L49/205 , H04L49/3009 , H04L49/3036 , H04L49/3072 , H04L63/0227 , H04L63/1458 , H04L69/22
摘要： Methods and devices for processing packets are provided. The processing device may include an input interface for receiving data units containing header information of respective packets; a first module configurable to perform packet filtering based on the received data units; a second module configurable to perform traffic analysis based on the received data units; a third module configurable to perform load balancing based on the received data units; and a fourth module configurable to perform route lookups based on the received data units.
摘要翻译：提供了处理数据包的方法和设备。处理装置可以包括用于接收包含各个分组的报头信息的数据单元的输入接口; 第一模块，可配置为基于所接收的数据单元执行分组过滤; 第二模块，其可配置为基于所接收的数据单元执行流量分析; 第三模块，可配置为基于所接收的数据单元执行负载平衡; 以及第四模块，其可配置为基于所接收的数据单元执行路线查找。

10. 发明授权

US5978874A Implementing snooping on a split-transaction computer system bus 失效
标题翻译：在分割事务计算机系统总线上实现窥探
公开(公告)号：US5978874A
公开(公告)日：1999-11-02
申请号：US673038
申请日：1996-07-01
申请人： Ashok Singhal , Bjorn Liencres , Jeff Price , Frederick M. Cerauskis , David Broniarczyk , Gerald Cheung , Erik Hagersten , Nalini Agarwal
发明人： Ashok Singhal , Bjorn Liencres , Jeff Price , Frederick M. Cerauskis , David Broniarczyk , Gerald Cheung , Erik Hagersten , Nalini Agarwal
IPC分类号： G06F12/08 , G06F13/368 , G06F13/00
CPC分类号： G06F13/368 , G06F12/0831
摘要： Snooping is implemented on a split transaction snooping bus for a computer system having one or many such buses. Circuit boards including CPU or other devices and/or distributed memory, data input/output buffers, queues including request tag queues, coherent input queues ("CIQ"), and address controller implementing address bus arbitration plug-into one or more split transaction snooping bus systems. All devices snoop on the address bus to learn whether an identified line is owned or shared, and an appropriate owned/shared signal is issued. Receipt of an ignore signal blocks CIQ loading of a transaction until the transaction is reloaded and ignore is deasserted. Ownership of a requested memory line transfers immediately at time of request. Asserted requests are queued such that state transactions on the address bus occur atomically logically without dependence upon the request. Subsequent requests for the same data are tagged to become the responsibility of the owner-requestor. A subsequent requestor's activities are not halted awaiting grant and completion of an earlier request transaction. Processor-level cache changes state upon receipt of transaction data. A single multiplexed arbitration bus carries address bus and data bus request transactions, which transactions are each two-cycles in length.
摘要翻译：在具有一个或多个这样的总线的计算机系统的分离事务监听总线上实现侦听。电路板包括CPU或其他设备和/或分布式存储器，数据输入/输出缓冲器，包括请求标签队列，相干输入队列（“CIQ”）和地址控制器的队列，实现地址总线仲裁插入到一个或多个拆分事务监听总线系统所有设备在地址总线上窥探，了解所标识的行是否拥有或共享，并发出适当的拥有/共享信号。接收忽略信号阻止事务的CIQ加载，直到重新加载事务并忽略忽略。所请求的内存线的所有权在请求时立即转移。被排除的请求排队，使得地址总线上的状态事务在逻辑上发生，而不依赖于请求。对相同数据的后续请求被标记为成为所有者请求者的责任。后续请求者的活动不会暂停等待授予并完成较早的请求事务。处理器级缓存在收到交易数据后更改状态。单个复用仲裁总线承载地址总线和数据总线请求事务，这些事务的长度分别为两个周期。

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