专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US07099352B1 System, apparatus, and method for increasing resiliency in communications 有权
公开(公告)号：US07099352B1
公开(公告)日：2006-08-29
申请号：US09752828
申请日：2001-01-03
申请人： Dennis C. Ferguson , Devereaux C. Chen , Eric M. Verwillow , Ramesh Padmanabhan , Thomas Michael Skibo
发明人： Dennis C. Ferguson , Devereaux C. Chen , Eric M. Verwillow , Ramesh Padmanabhan , Thomas Michael Skibo
IPC分类号： H04J3/06
CPC分类号： H04J3/1617 , H04J2203/0082 , H04L2007/045
摘要： A transmitting system inserts runt abort packets in an outgoing data stream during idle time inter-frame time fill. The runt abort packets cause the receiving system to synchronize itself to the transmitting system so that even if an error during inter-frame time fill causes the receiving system to go into an erroneous state, the receiving system will be synchronized with the transmitting system before receiving valid data. In one embodiment, the transmitting system transmits data in packets over SONET. The packet data is scrambled at the transmitting end and descrambled at the receiving end. Runt abort packets sent during inter-frame time fill resynchronize the descrambler. If there is an error in the inter-frame time fill bytes, causing the receiving end descrambler to no longer be synchronized with the transmitting end scrambler, the runt abort packets will cause the descrambler to resynchronize state with the transmitting scrambler.

12. 发明授权

US08867543B2 In-line packet processing 有权
标题翻译：在线包处理
公开(公告)号：US08867543B2
公开(公告)日：2014-10-21
申请号：US13294543
申请日：2011-11-11
申请人： Rasoul Mirzazadeh Oskouy , Dennis C. Ferguson , Hann-Hwan Ju , Raymond Marcelino Manese Lim , Pradeep S. Sindhu , Sreeram Veeragandham , Jeff Zimmer , Michael M. Y. Hui
发明人： Rasoul Mirzazadeh Oskouy , Dennis C. Ferguson , Hann-Hwan Ju , Raymond Marcelino Manese Lim , Pradeep S. Sindhu , Sreeram Veeragandham , Jeff Zimmer , Michael M. Y. Hui
IPC分类号： H04L12/28 , H04J3/24 , H04L12/54 , H04L12/933 , H04L12/773 , H04L12/935 , H04L29/06 , H04L12/947 , H04L12/879 , H04L12/861 , H04Q11/04 , H04L12/863 , H04L12/701 , H04L12/931 , H04L12/70 , H04L12/939 , H04L12/937
CPC分类号： H04L45/74 , G06F11/08 , H04L1/0041 , H04L12/56 , H04L12/5601 , H04L29/06 , H04L45/00 , H04L45/20 , H04L45/60 , H04L47/6225 , H04L49/103 , H04L49/108 , H04L49/203 , H04L49/25 , H04L49/254 , H04L49/30 , H04L49/3009 , H04L49/3063 , H04L49/3081 , H04L49/555 , H04L49/602 , H04L49/608 , H04L49/90 , H04L49/901 , H04L49/9047 , H04L69/16 , H04L69/161 , H04L69/22 , H04L69/324 , H04L2012/5652 , H04L2012/5679 , H04Q11/0478
摘要： A method and apparatus for in-line processing a data packet while routing the packet through a router in a system transmitting data packets between a source and a destination over a network including the router. The method includes receiving the data packet and pre-processing layer header data for the data packet as the data packet is received and prior to transferring any portion of the data packet to packet memory. The data packet is thereafter stored in the packet memory. A routing through the router is determined including a next hop index describing the next connection in the network. The data packet is retrieved from the packet memory and a new layer header for the data packet is constructed from the next hop index while the data packet is being retrieved from memory. The new layer header is coupled to the data packet prior to transfer from the router.
摘要翻译：一种用于在通过包括路由器的网络在源和目的地之间传输数据分组的系统中的路由器路由数据包的同时处理数据分组的方法和装置。该方法包括在接收到数据分组并且将数据分组的任何部分传送到分组存储器之前接收数据分组和数据分组的预处理层报头数据。数据分组此后被存储在分组存储器中。确定通过路由器的路由，其包括描述网络中的下一个连接的下一跳索引。从分组存储器检索数据分组，并且在从存储器检索数据分组的同时，从下一跳索引构建数据分组的新层头。在从路由器传送之前，将新层标头耦合到数据包。

13. 发明授权

US08189605B2 Separation of data and control in a switching device 有权
标题翻译：切换设备中数据和控制的分离
公开(公告)号：US08189605B2
公开(公告)日：2012-05-29
申请号：US12346918
申请日：2008-12-31
申请人： Pradeep S. Sindhu , Kireeti Kompella , Dennis C. Ferguson , Bjorn O Liencres , Nalini Agarwal , Hann-Hwan Ju , Raymond Marcelino Manese Lim , Rasoul Mirzazadeh Oskouy , Sreeram Veeragandham
发明人： Pradeep S. Sindhu , Kireeti Kompella , Dennis C. Ferguson , Bjorn O Liencres , Nalini Agarwal , Hann-Hwan Ju , Raymond Marcelino Manese Lim , Rasoul Mirzazadeh Oskouy , Sreeram Veeragandham
IPC分类号： H04L12/28
CPC分类号： G06F15/167 , H04L12/5601 , H04L29/06 , H04L45/00 , H04L45/72 , H04L45/7457 , H04L47/6225 , H04L49/103 , H04L49/108 , H04L49/1538 , H04L49/203 , H04L49/25 , H04L49/252 , H04L49/3072 , H04L49/3081 , H04L49/608 , H04L49/90 , H04L49/901 , H04L49/9042 , H04L49/9047 , H04L49/9057 , H04L69/22 , H04L2012/5652 , H04L2012/5679 , H04L2012/5681 , H04Q11/0478
摘要： A method and apparatus for switching a data packet between a source and destination in a network. The data packet includes a header portion and a data portion. The header portion includes routing information for the data packet. The method includes defining a data path in the router comprising a path through the router along which the data portion of the data packet travels and defining a control path comprising a path through the router along which routing information from the header portion travels. The method includes separating the data path and control path in the router such that the routing information can be separated from the data portion allowing for the separate processing of each in the router. The data portion can be stored in a global memory while routing decisions are made on the routing information in the control path.
摘要翻译：一种用于在网络中的源和目的地之间切换数据分组的方法和装置。数据分组包括报头部分和数据部分。报头部分包括用于数据分组的路由信息。该方法包括在路由器中定义数据路径，其包括通过路由器的路径，数据分组的数据部分沿着路径行进，并且定义包括通过路由器的路径的控制路径，路由器沿着路径信息从该路径行进。该方法包括分离路由器中的数据路径和控制路径，使得路由信息可以与数据部分分离，允许路由器中的每一个的单独处理。数据部分可以存储在全局存储器中，同时对控制路径中的路由信息作出路由决定。

14. 发明授权

US07986717B2 System, apparatus, and method for increasing resiliency in communications 有权
标题翻译：提高通信弹性的系统，装置和方法
公开(公告)号：US07986717B2
公开(公告)日：2011-07-26
申请号：US12492967
申请日：2009-06-26
申请人： Dennis C. Ferguson , Devereaux C. Chen , Eric M. Verwillow , Ramesh Padmanabhan , Thomas Michael Skibo
发明人： Dennis C. Ferguson , Devereaux C. Chen , Eric M. Verwillow , Ramesh Padmanabhan , Thomas Michael Skibo
IPC分类号： H04J3/06
CPC分类号： H04J3/1617 , H04J2203/0082 , H04L2007/045
摘要： A transmitting system inserts runt abort packets in an outgoing data stream during idle time inter-frame time fill. The runt abort packets cause the receiving system to synchronize itself to the transmitting system so that even if an error during inter-frame time fill causes the receiving system to go into an erroneous state, the receiving system will be synchronized with the transmitting system before receiving valid data. In one embodiment, the transmitting system transmits data in packets over SONET. The packet data is scrambled at the transmitting end and descrambled at the receiving end. Runt abort packets sent during inter-frame time fill resynchronize the descrambler. If there is an error in the inter-frame time fill bytes, causing the receiving end descrambler to no longer be synchronized with the transmitting end scrambler, the runt abort packets will cause the descrambler to resynchronize state with the transmitting scrambler.
摘要翻译：发送系统在空闲时间间隔间时间填充期间，将输出数据流中的中断中止分组插入。中断中止分组使得接收系统使其自身与发射系统同步，使得即使在帧间时间填充期间的错误导致接收系统进入错误状态，接收系统将在接收之前与发射系统同步有效数据。在一个实施例中，发送系统通过SONET发送数据包。分组数据在发送端进行加扰并在接收端进行解扰。在跨帧时间填充期间发送的Runt中止包重新同步解扰器。如果在帧间时间填充字节中存在错误，导致接收端解扰器不再与发送端加扰器同步，则中断中止分组将使解扰器与发送加扰器重新同步状态。

15. 发明授权

US07801140B2 In-line packet processing 有权
标题翻译：在线包处理
公开(公告)号：US07801140B2
公开(公告)日：2010-09-21
申请号：US11842110
申请日：2007-08-20
申请人： Rasoul Mirzazadeh Oskouy , Dennis C. Ferguson , Hann-Hwan Ju , Raymond Marcelino Manese Lim , Pradeep S. Sindhu , Sreeram Veeragandham , Jeff Zimmer , Michael M. Y. Hui
发明人： Rasoul Mirzazadeh Oskouy , Dennis C. Ferguson , Hann-Hwan Ju , Raymond Marcelino Manese Lim , Pradeep S. Sindhu , Sreeram Veeragandham , Jeff Zimmer , Michael M. Y. Hui
IPC分类号： H04L12/56
CPC分类号： H04L45/74 , G06F11/08 , H04L1/0041 , H04L12/56 , H04L12/5601 , H04L29/06 , H04L45/00 , H04L45/20 , H04L45/60 , H04L47/6225 , H04L49/103 , H04L49/108 , H04L49/203 , H04L49/25 , H04L49/254 , H04L49/30 , H04L49/3009 , H04L49/3063 , H04L49/3081 , H04L49/555 , H04L49/602 , H04L49/608 , H04L49/90 , H04L49/901 , H04L49/9047 , H04L69/16 , H04L69/161 , H04L69/22 , H04L69/324 , H04L2012/5652 , H04L2012/5679 , H04Q11/0478
摘要： A method and device for in-line processing a data packet is provided. The data packet is received at a first buffer. The data packet is divided into a number of cells that are stored in a first queue. For each cell, a cell state code is stored that indicates an address of the corresponding cell in the first queue and an indication of a sequence order of the cell within the data packet.
摘要翻译：提供了一种用于在线处理数据分组的方法和设备。在第一缓冲器处接收数据分组。数据分组被分成存储在第一队列中的多个单元。对于每个小区，存储指示第一队列中相应小区的地址以及数据分组内小区的序列顺序的指示的小区状态码。

16. 发明申请

US20100177638A1 HIGH PERFORMANCE PROBABILISTIC RATE POLICER 有权
标题翻译：高性能概率速率策略器
公开(公告)号：US20100177638A1
公开(公告)日：2010-07-15
申请号：US12732370
申请日：2010-03-26
申请人： Dennis C. Ferguson , Devereaux C. Chen , John W. Stewart, III , James Washburn , Jeffrey R. Zimmer
发明人： Dennis C. Ferguson , Devereaux C. Chen , John W. Stewart, III , James Washburn , Jeffrey R. Zimmer
IPC分类号： H04L12/56
CPC分类号： H04L47/10 , H04L47/20 , H04L47/39
摘要： A data flow rate policer enforces data flow policies for a number of data flows using a probabilistic policy enforcement mechanism. The policer includes a memory that stores the state of each data flow in a compact data structure. Additionally, the policer includes one or more policing engines that implement the actual data flow policies based on information derived from the data structures. The policing engines may be implemented in hardware to increase performance.
摘要翻译：数据流速策略器使用概率策略执行机制来执行多个数据流的数据流策略。监管者包括一个存储器，它将每个数据流的状态存储在紧凑的数据结构中。另外，监管者还包括一个或多个监管引擎，其基于从数据结构导出的信息来实现实际的数据流策略。警务引擎可以以硬件实现以提高性能。

17. 发明授权

US07420972B1 Multicast packet replication 有权
标题翻译：组播数据包复制
公开(公告)号：US07420972B1
公开(公告)日：2008-09-02
申请号：US11833602
申请日：2007-08-03
申请人： Hsien-Chung Woo , Dennis C. Ferguson , Lawrence Hui
发明人： Hsien-Chung Woo , Dennis C. Ferguson , Lawrence Hui
IPC分类号： H04L12/28
CPC分类号： H04L12/1854 , H04L45/00
摘要： Techniques are described to replicate multicast packets in accordance with a hierarchical data structure. For example, upon receiving a multicast packet, a packet-forwarding engine may communicate the packet to packet-forwarding engines corresponding to starting nodes of the hierarchical data structure. The packet-forwarding engines corresponding to starting nodes of the hierarchical data structure may replicate the multicast packet for local interface cards, and forward the replicated packets to the network. Furthermore, the packet-forwarding engines may replicate the packet for packet-forwarding engines corresponding to downstream nodes. In this manner, the packet replication process is distributed throughout the router decreasing the complexity of necessary replication hardware. Furthermore, the packet replication process is highly scalable resulting in a latency of one fabric hop when the number of packet-forwarding engines doubles. Also, when the hierarchical data structure has more than one starting node, the packet replication process is less susceptible to a single point failure.
摘要翻译：描述了根据分层数据结构复制多播分组的技术。例如，在接收到组播分组时，分组转发引擎可以将分组传送到与分层数据结构的起始节点相对应的分组转发引擎。与分级数据结构的起始节点相对应的分组转发引擎可以复制本地接口卡的组播数据包，并将复制的分组转发到网络。此外，分组转发引擎可以对与下游节点相对应的分组转发引擎复制分组。以这种方式，分组复制过程分布在整个路由器中，从而降低必要复制硬件的复杂度。此外，分组复制过程是高度可扩展的，导致当分组转发引擎的数量加倍时，一个结构跳跃的延迟。此外，当分层数据结构具有多个起始节点时，分组复制过程对单点故障较不敏感。

18. 发明授权

US07243184B1 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：US07243184B1
公开(公告)日：2007-07-10
申请号：US10193212
申请日：2002-07-12
申请人： Dennis C. Ferguson , Philippe Lacroute , Chi-Chung Chen , Gerald Cheung , Tatao Chuang , Pankaj Patel , Visweh Ananthakrishnan
发明人： Dennis C. Ferguson , Philippe Lacroute , Chi-Chung Chen , Gerald Cheung , Tatao Chuang , Pankaj Patel , Visweh Ananthakrishnan
IPC分类号： G06F12/00 , 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。

19. 发明授权

US06917620B1 Separation of data and control in a switching device 有权
公开(公告)号：US06917620B1
公开(公告)日：2005-07-12
申请号：US09466864
申请日：1999-12-17
申请人： Pradeep S. Sindhu , Kireeti Kompella , Dennis C. Ferguson , Bjorn O. Liencres , Nalini Agarwal , Hann-Hwan Ju , Raymond Marcelino Manese Lim , Rasoul Mirzazadeh Oskouy , Sreeram Veeragandham
发明人： Pradeep S. Sindhu , Kireeti Kompella , Dennis C. Ferguson , Bjorn O. Liencres , Nalini Agarwal , Hann-Hwan Ju , Raymond Marcelino Manese Lim , Rasoul Mirzazadeh Oskouy , Sreeram Veeragandham
IPC分类号： H04L12/46 , H04L12/56 , H04L29/06 , H04Q11/04 , H04J3/24
CPC分类号： G06F15/167 , H04L12/5601 , H04L29/06 , H04L45/00 , H04L45/72 , H04L45/7457 , H04L47/6225 , H04L49/103 , H04L49/108 , H04L49/1538 , H04L49/203 , H04L49/25 , H04L49/252 , H04L49/3072 , H04L49/3081 , H04L49/608 , H04L49/90 , H04L49/901 , H04L49/9042 , H04L49/9047 , H04L49/9057 , H04L69/22 , H04L2012/5652 , H04L2012/5679 , H04L2012/5681 , H04Q11/0478
摘要： A method and apparatus for switching a data packet between a source and destination in a network. The data packet includes a header portion and a data portion. The header portion includes routing information for the data packet. The method includes defining a data path in the router comprising a path through the router along which the data portion of the data packet travels and defining a control path comprising a path through the router along which routing information from the header portion travels. The method includes separating the data path and control path in the router such that the routing information can be separated from the data portion allowing for the separate processing of each in the router. The data portion can be stored in a global memory while routing decisions are made on the routing information in the control path.

20. 发明授权

US5905725A High speed switching device 失效
标题翻译：高速切换装置
公开(公告)号：US5905725A
公开(公告)日：1999-05-18
申请号：US844171
申请日：1997-04-18
申请人： Pradeep S. Sindhu , Ramalingam K. Anand , Dennis C. Ferguson , Bjorn O. Liencres
发明人： Pradeep S. Sindhu , Ramalingam K. Anand , Dennis C. Ferguson , Bjorn O. Liencres
IPC分类号： H04L12/56 , H04Q11/04
CPC分类号： H04L12/56 , H04L12/5601 , H04L49/108 , H04L49/1538 , H04L49/203 , H04L49/3081 , H04L49/608 , H04L49/90 , H04L49/9047 , H04L49/9057 , H04Q11/0478 , H04L2012/5652 , H04L2012/5679
摘要： A router for switching a data packet between a source and destination in a network including a plurality of input ports each including a data handler. The data handler divides a data packet into one or more fixed length cells. The router includes a plurality of output ports at least one of which is for routing the data packet to the destination and a memory divided into a plurality of memory banks. A input switch receives fixed length cells from the input ports and writes a single cell in a cell slot time span to each memory bank. An output switch routes cells received from the memory to an appropriate output port.
摘要翻译：一种用于在网络中的源和目的地之间切换数据分组的路由器，包括多个输入端口，每个输入端口包括数据处理器。数据处理器将数据包分成一个或多个固定长度的单元。路由器包括多个输出端口，其中至少一个输出端口用于将数据分组路由到目的地和分为多个存储体的存储器。输入开关从输入端口接收固定长度的单元，并将单元格时隙的单个单元写入每个存储体。输出开关将从存储器接收的单元路由到适当的输出端口。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式