公开(公告)号：US07554919B1

公开(公告)日：2009-06-30

申请号：US10863772

申请日：2004-06-09

Applicant: Sreeram Veeragandham ,  Rami Rahim ,  Song Zhang ,  Anurag P. Gupta ,  Jorge Cruz-Rios ,  Jayabharat Boddu ,  Jeffrey R. Zimmer ,  Jia-Chang Wang ,  Srihari Shoroff ,  Chi-Chung K. Chen

Inventor： Sreeram Veeragandham ,  Rami Rahim ,  Song Zhang ,  Anurag P. Gupta ,  Jorge Cruz-Rios ,  Jayabharat Boddu ,  Jeffrey R. Zimmer ,  Jia-Chang Wang ,  Srihari Shoroff ,  Chi-Chung K. Chen

IPC: H04J1/16 ,  H04J3/14 ,  H04J3/16 ,  H04J3/22

CPC classification number: H04L47/623 ,  H04L47/263 ,  H04L47/50 ,  H04L47/522 ,  H04L47/6265

Abstract: A packet scheduler is configured to perform quality of service (QoS) scheduling on a per-data unit basis. A downstream processing engine is operatively connected to the packet scheduler for receiving forwarded packets. A feedback path is operatively connected between the downstream processing engine and the packet scheduler for transmitting a net data unit change value reflecting a change in packet size between an output of the packet scheduler and an output of the downstream processing engine.

Abstract translation: 分组调度器被配置为在每个数据单元的基础上执行服务质量（QoS）调度。 下游处理引擎可操作地连接到分组调度器以接收转发的分组。 反馈路径可操作地连接在下游处理引擎和分组调度器之间，用于发送反映分组调度器的输出和下游处理引擎的输出之间的分组大小变化的净数据单元变化值。

公开(公告)号：US07545808B2

公开(公告)日：2009-06-09

申请号：US11226335

申请日：2005-09-15

Applicant: Pradeep S. Sindhu ,  Dennis C. Ferguson ,  Bjorn O. Liencres ,  Nalini Agarwal ,  Hann-Hwan Ju ,  Raymond Marcelino Manese Lim ,  Rasoul Mirzazadeh Oskouy ,  Sreeram Veeragandham

Inventor： Pradeep S. Sindhu ,  Dennis C. Ferguson ,  Bjorn O. Liencres ,  Nalini Agarwal ,  Hann-Hwan Ju ,  Raymond Marcelino Manese Lim ,  Rasoul Mirzazadeh Oskouy ,  Sreeram Veeragandham

IPC: H04L12/28

CPC classification number: 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

Abstract: A network device switches variable length data units from a source to a destination in a network. An input port receives the variable length data unit and a divider divides the variable length data unit into uniform length data units for temporary storage in the network device. A distributed memory includes a plurality of physically separated memory banks addressable using a single virtual address space and an input switch streams the uniform length data units across the memory banks based on the virtual address space. The network device further includes an output switch for extracting the uniform length data units from the distributed memory by using addresses of the uniform length data units within the virtual address space. The output switch reassembles the uniform length data units to reconstruct the variable length data unit. An output port receives the variable length data unit and transfers the variable length data unit to the destination.

Abstract translation: 网络设备将可变长度数据单元从网络中的源切换到目的地。 输入端口接收可变长度数据单元，并且除法器将可变长度数据单元划分成用于在网络设备中临时存储的统一长度数据单元。 分布式存储器包括可以使用单个虚拟地址空间寻址的多个物理上分离的存储器组，并且输入开关基于虚拟地址空间跨越存储体流量化均匀长度数据单元。 网络设备还包括输出开关，用于通过使用虚拟地址空间内的均匀长度数据单元的地址从分布式存储器提取均匀长度的数据单元。 输出开关重新组合均匀的长度数据单元以重构可变长度数据单元。 输出端口接收可变长度数据单元并将可变长度数据单元传送到目的地。

公开(公告)号：US07032082B1

公开(公告)日：2006-04-18

申请号：US09942623

申请日：2001-08-31

Applicant: Rami Rahim ,  Pradeep Sindhu ,  Raymond Marcelino Manese Lim ,  Sreeram Veeragandham ,  David Skinner

Inventor： Rami Rahim ,  Pradeep Sindhu ,  Raymond Marcelino Manese Lim ,  Sreeram Veeragandham ,  David Skinner

IPC: G06F12/06 ,  G06F13/16

CPC classification number: G06F12/0684 ,  G06F12/02 ,  G06F12/0813

Abstract: A system for writing data includes a memory, at least one memory controller and control logic. The memory stores data units. The memory controller receives a write request associated with a data unit and stores the data unit in the memory. The memory controller also transmits a reply that includes an address where the data unit is stored. The control logic receives the reply and determines whether the address in the reply differs from an address included in replies associated with other memory controllers by a threshold amount. When this occurs, the control logic performs a corrective action to bring an address associated with the memory controller back within a defined range.

Abstract translation: 用于写入数据的系统包括存储器，至少一个存储器控制器和控制逻辑。 内存存储数据单元。 存储器控制器接收与数据单元相关联的写请求，并将数据单元存储在存储器中。 存储器控制器还发送包括存储数据单元的地址的应答。 控制逻辑接收答复并确定答复中的地址是否与包含在与其他存储器控制器相关联的应答中的地址相差阈值。 当这种情况发生时，控制逻辑执行纠正措施以使与存储器控制器相关联的地址返回到定义的范围内。

公开(公告)号：US06791947B2

公开(公告)日：2004-09-14

申请号：US09129137

申请日：1998-08-04

Applicant: Rasoul Mirzazadeh Oskouy ,  Dennis C. Ferguson ,  Hann-Hwan Ju ,  Raymond Marcelino Manese Lim ,  Pradeep S. Sindhu ,  Sreeram Veeragandham ,  Jeff Zimmer ,  Michael Hui

Inventor： Rasoul Mirzazadeh Oskouy ,  Dennis C. Ferguson ,  Hann-Hwan Ju ,  Raymond Marcelino Manese Lim ,  Pradeep S. Sindhu ,  Sreeram Veeragandham ,  Jeff Zimmer ,  Michael Hui

IPC: H04L1256

CPC classification number: 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

Abstract: 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.

Abstract translation: 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标题。 在从路由器传送之前，将新层标头耦合到数据包。