公开(公告)号：US07304987B1

公开(公告)日：2007-12-04

申请号：US10395367

申请日：2003-03-24

申请人： Kevin Warren James ,  Kenneth Yi Yun ,  Sushil Kumar Singh ,  Viet Linh Do ,  Michael John Hellmer ,  Kirk Alvin Miller ,  Jianfeng Shi ,  George Beshara Bendak

发明人： Kevin Warren James ,  Kenneth Yi Yun ,  Sushil Kumar Singh ,  Viet Linh Do ,  Michael John Hellmer ,  Kirk Alvin Miller ,  Jianfeng Shi ,  George Beshara Bendak

IPC分类号： H04L12/50

CPC分类号： H04L49/252 ,  G06F8/34 ,  H04L49/205 ,  H04L49/3018 ,  H04L49/3027 ,  H04L49/503

摘要： A system and method are provided for resynchronizing backplane link management credit counters in a packet communications switch fabric. The method comprises: at an input port card ingress port, accepting information packets including cells and cell headers with destination information; modifying the destination information in the received cell headers; routing information packets between the input port card and output port cards on backplane data links through an intervening crossbar; at the input port card, maintaining a credit counter for each output port card channel; decrementing the counter in response to transmitting cells from the input port card; generating credits in response to transmitting cells from an output port card channel; sending the generated credits to increment the counter, using the modified destination information; and, using the generated credit flow to resynchronize the credit counter.

摘要翻译： 提供了用于在分组通信交换结构中重新同步背板链路管理信用计数器的系统和方法。 该方法包括：在输入端口卡入口端口，接收包括具有目的地信息的小区和小区标题的信息分组; 修改所接收的信元头部中的目的地信息; 在输入端口卡和输出端口卡之间通过插入式交叉开关将信息包路由在背板数据链路上; 在输入端口卡处，保持每个输出端口卡通道的信用计数器; 响应于从输入端口卡传输单元而递减计数器; 响应于从输出端口卡信道发送信元而产生信用; 使用修改的目的地信息发送生成的信用以增加计数器; 并使用生成的信用流来重新同步信用计数器。

公开(公告)号：US07263066B1

公开(公告)日：2007-08-28

申请号：US10395369

申请日：2003-03-24

申请人： Kenneth Yi Yun ,  Jianfeng Shi ,  Viet Linh Do ,  Michael John Hellmer ,  Kevin Warren James ,  Kirk Alvin Miller ,  Sushil Kumar Singh ,  David Thomas Dougherty ,  John Calvin Leung

发明人： Kenneth Yi Yun ,  Jianfeng Shi ,  Viet Linh Do ,  Michael John Hellmer ,  Kevin Warren James ,  Kirk Alvin Miller ,  Sushil Kumar Singh ,  David Thomas Dougherty ,  John Calvin Leung

IPC分类号： H04L12/26

CPC分类号： H04L12/5601 ,  H04L49/106 ,  H04L2012/5665 ,  H04L2012/5675

摘要： A credit-based system and method are provided for managing backplane traffic flow in a packet communications switch fabric. The method comprises: accepting information packets including cells and cell headers with destination information; modifying the destination information in the received cell headers; routing information packets between an input port card and output port cards on backplane data links through an intervening crossbar; at the input port card, maintaining a credit counter for each output port card channel; decrementing the counter in response to transmitting cells from the input port card; generating credits in response to transmitting cells from an output port card channel; and, using modified destination information, sending the generated credits to increment the counter. In some aspects, modifying the destination information in the received packet headers includes: extracting the output port card termination from the card field; and, inserting the input port card source in the card field.

摘要翻译： 提供了基于信用的系统和方法来管理分组通信交换结构中的背板业务流。 该方法包括：接收目的地信息包括小区和小区标题的信息包; 修改所接收的信元头部中的目的地信息; 在输入端口卡和背板数据链路上的输出端口卡之间通过插入的交叉开关路由信息包; 在输入端口卡处，保持每个输出端口卡通道的信用计数器; 响应于从输入端口卡传输单元而递减计数器; 响应于从输出端口卡信道发送信元而产生信用; 并且使用修改的目的地信息，发送生成的信用以递增计数器。 在一些方面，修改接收到的分组头部中的目的地信息包括：从卡片段提取输出端口卡终端; 并将输入端口卡卡插入卡片区域。

公开(公告)号：US07298754B1

公开(公告)日：2007-11-20

申请号：US10403964

申请日：2003-03-31

申请人： Kirk Alvin Miller ,  Prayag Bhanubhai Patel ,  George Beshara Bendak ,  Kenneth Yi Yun ,  Sushil Kumar Singh ,  Ayoob Eusoof Dooply ,  Michael John Hellmer

发明人： Kirk Alvin Miller ,  Prayag Bhanubhai Patel ,  George Beshara Bendak ,  Kenneth Yi Yun ,  Sushil Kumar Singh ,  Ayoob Eusoof Dooply ,  Michael John Hellmer

IPC分类号： H04L12/56

CPC分类号： H04L49/252 ,  G06F8/34 ,  H04L49/205 ,  H04L49/3018 ,  H04L49/3027 ,  H04L49/503

摘要： A system and method are provided for configuring interface bandwidths in a packet communications switch fabric. The method comprises: interfacing data links with a first plurality of traffic managers (TMs); differentiating port card interface ports into a first plurality of subchannels associated with the first plurality of TMs; and, communicating packets information with the TMs at a first plurality of data rates corresponding to the first plurality of subchannels. More specifically, differentiating port card interface ports into a first plurality of subchannels associated with the first plurality of TMs includes: differentiating a second plurality of ingress data links into a third plurality of ingress subchannels associated with a third plurality of ingress traffic managers (iTMs); and, differentiating a fourth plurality of egress data links into a fifth plurality of egress subchannels associated with a fifth plurality of egress TMs (eTMs).

摘要翻译： 提供了一种用于在分组通信交换结构中配置接口带宽的系统和方法。 该方法包括：将数据链路与第一多个业务管理器（TM）进行接口; 将端口卡接口端口区分成与第一多个TM相关联的第一多个子信道; 以及以与所述第一多个子信道对应的第一多个数据速率与所述TM通信分组信息。 更具体地，将端口卡接口端口区分为与第一多个TM相关联的第一多个子信道包括：将第二多个入口数据链路区分为与第三多个入口业务管理器（iTM）相关联的第三多个入口子信道， ; 以及将第四多个出口数据链路区分为与第五多个出口TM（eTM）相关联的第五多个出口子信道。

公开(公告)号：US07230947B1

公开(公告)日：2007-06-12

申请号：US10378502

申请日：2003-03-03

申请人： John David Huber ,  Kirk Alvin Miller ,  Michael John Hellmer ,  Kenneth Yi Yun ,  Kevin Warren James ,  George Beshara Bendak

发明人： John David Huber ,  Kirk Alvin Miller ,  Michael John Hellmer ,  Kenneth Yi Yun ,  Kevin Warren James ,  George Beshara Bendak

IPC分类号： H04Q11/00

CPC分类号： H04L12/5601 ,  H04L49/106 ,  H04L2012/5665 ,  H04L2012/5675

摘要： A system and method are provided for cut-through packet routing in a packet communications switch fabric. The method comprises: accepting information packets addressed to a plurality of output port card egress ports at an input port card ingress port; routing information packets between port cards on backplane data links through an intervening crossbar; maintaining a credit counter for each port card egress destination, at the input port card; decrementing the counter in response to transmitting cells in a packet from the input port card; and, incrementing the counter in response to transmitting cells from the packet at the output port card. In some aspects of the method, accepting information includes buffering the packets in an ingress memory subsystem (iMS). Routing information includes the iMS transmitting buffered packets on a selected backplane data link. Decrementing the counter includes the iMS communicating with the iPQ in response to transmitting a cell.

摘要翻译： 提供了一种用于分组通信交换结构中的直通分组路由的系统和方法。 该方法包括：接收寻址到输入端口卡入口的多个输出端口卡出口端口的信息包; 在背板数据链路上的端口卡之间通过插入的交叉开关路由信息包; 在输入端口卡上维护每个端口卡出口目的地的信用计数器; 响应于来自输入端口卡的分组中的传输小区而递减计数器; 并且响应于从输出端口卡处的分组发送小区而递增计数器。 在该方法的某些方面，接收信息包括缓冲入口存储器子系统（iMS）中的分组。 路由信息包括在选定的背板数据链路上发送缓冲的分组的iMS。 减少计数器包括响应于传输单元而与iPQ通信的iMS。

公开(公告)号：US07209453B1

公开(公告)日：2007-04-24

申请号：US10378521

申请日：2003-03-03

申请人： Kenneth Yi Yun ,  Michael John Hellmer ,  David Thomas Dougherty ,  Philip Michael Clovis ,  Eli James Aubrey Fernald ,  Peter John Holzer

发明人： Kenneth Yi Yun ,  Michael John Hellmer ,  David Thomas Dougherty ,  Philip Michael Clovis ,  Eli James Aubrey Fernald ,  Peter John Holzer

IPC分类号： H04J1/16 ,  H04J3/14

CPC分类号： H04L49/557 ,  H04L49/101 ,  H04L49/555

摘要： A system and method are provided for tolerating control link faults in a packet communications switch fabric. The method comprises: accepting information packets including a plurality of cells, at a plurality of port card ports, the plurality of information packets addressing a plurality of port card ports; selectively connecting port card ports to port card backplane data links; in response to backplane control link communications, selectively connecting port card backplane data links and crossbars; sensing a connection fault in a control link; and, in response to sensing the control link fault, reselecting connections between the port card ports and the port card backplane data links. In some aspects, selectively connecting port card backplane data links and crossbars includes: for a particular backplane data link, fixedly connecting each port card to a corresponding interface of an assigned crossbar; and, selectively enabling the connection to each crossbar.

摘要翻译： 提供了一种用于容忍分组通信交换结构中的控制链路故障的系统和方法。 该方法包括：在多个端口卡端口处接收包括寻址多个端口卡端口的多个信息分组的包括多个小区的信息分组; 选择性地将端口卡端口连接到端口卡背板数据链路; 响应于背板控制链路通信，选择性地连接端口卡背板数据链路和交叉连接; 感测控制链路中的连接故障; 并且响应于感测到控制链路故障，重新选择端口卡端口和端口卡背板数据链路之间的连接。 在一些方面，选择性地连接端口卡背板数据链路和交叉开关包括：对于特定的背板数据链路，将每个端口卡固定地连接到所分配的交叉开关的相应接口; 并且选择性地启用与每个横杆的连接。

公开(公告)号：US20100092174A1

公开(公告)日：2010-04-15

申请号：US12250475

申请日：2008-10-13

申请人： Matthew Brown ,  Dimitrios Giannakopoulos ,  Jim Lew ,  Michael John Hellmer

发明人： Matthew Brown ,  Dimitrios Giannakopoulos ,  Jim Lew ,  Michael John Hellmer

IPC分类号： H04J14/02

CPC分类号： H04L1/0071 ,  H04L25/14

摘要： A system and method are provided for deinterleaving differential inverse multiplexed (DIM) virtual channels in a 40G Ethernet receiver. The method accepts a 10.3125 gigabits per second (Gbps) (10G) Ethernet virtual channel with 64B/86B blocks, including periodic Lane Alignment Marker (LAM) blocks. The 10G virtual channel is deinterleaved into two 5.15625 Gbps (5G) virtual channels by: 1) deinterleaving consecutive blocks from the 10G virtual channel into the 5G virtual channels in an alternating order, and 2) reversing the order of deinterleaving in response to each detected LAM block. Then, the method supplies the 5G virtual channels (i.e. to a MAC module).

摘要翻译： 提供了一种用于在40G以太网接收机中对差分逆多路复用（DIM）虚拟信道进行解交织的系统和方法。 该方法接收具有64B / 86B块的每秒10.3125吉比特（Gbps）（10G）以太网虚拟通道，包括周期性车道对准标记（LAM）块。 10G虚拟信道通过以下方式被解交错成两个5.15625Gbps（5G）虚拟信道：1）以10交替的顺序将10G虚拟信道中的连续块解交织成5G虚拟信道，以及2）响应于每个检测到的逆交换顺序 LAM块。 然后，该方法提供5G虚拟信道（即，向MAC模块）。

公开(公告)号：US07839839B2

公开(公告)日：2010-11-23

申请号：US12250475

申请日：2008-10-13

申请人： Matthew Brown ,  Dimitrios Giannakopoulos ,  Jim Lew ,  Michael John Hellmer

发明人： Matthew Brown ,  Dimitrios Giannakopoulos ,  Jim Lew ,  Michael John Hellmer

IPC分类号： H04J3/06

CPC分类号： H04L1/0071 ,  H04L25/14

摘要： A system and method are provided for deinterleaving differential inverse multiplexed (DIM) virtual channels in a 40G Ethernet receiver. The method accepts a 10.3125 gigabits per second (Gbps) (10G) Ethernet virtual channel with 64B/86B blocks, including periodic Lane Alignment Marker (LAM) blocks. The 10G virtual channel is deinterleaved into two 5.15625 Gbps (5G) virtual channels by: 1) deinterleaving consecutive blocks from the 10G virtual channel into the 5G virtual channels in an alternating order, and 2) reversing the order of deinterleaving in response to each detected LAM block. Then, the method supplies the 5G virtual channels (i.e. to a MAC module).

摘要翻译： 提供了一种用于在40G以太网接收机中对差分逆多路复用（DIM）虚拟信道进行解交织的系统和方法。 该方法接收具有64B / 86B块的每秒10.3125吉比特（Gbps）（10G）以太网虚拟通道，包括周期性车道对准标记（LAM）块。 10G虚拟信道通过以下方式被解交错成两个5.15625Gbps（5G）虚拟信道：1）以10交替的顺序将10G虚拟信道中的连续块解交织成5G虚拟信道，以及2）响应于每个检测到的逆交换顺序 LAM块。 然后，该方法提供5G虚拟信道（即，向MAC模块）。