公开(公告)号：US20130235763A1

公开(公告)日：2013-09-12

申请号：US13454987

申请日：2012-04-24

申请人： Sushma Anantharam ,  Nirapada Ghosh ,  Dayavanti Gopal Kamath ,  Keshav Govind Kamble ,  Dar-Ren Leu ,  Chandarani J. Mendon ,  Vijoy Pandey ,  Nandakumar Peethambaram

发明人： Sushma Anantharam ,  Nirapada Ghosh ,  Dayavanti Gopal Kamath ,  Keshav Govind Kamble ,  Dar-Ren Leu ,  Chandarani J. Mendon ,  Vijoy Pandey ,  Nandakumar Peethambaram

IPC分类号： H04L12/24 ,  H04L12/28

CPC分类号： H04L49/356 ,  H04L12/413 ,  H04L41/12 ,  H04L41/22 ,  H04L49/256 ,  H04L49/65 ,  H04W36/22

摘要： A distributed fabric system has distributed line card (DLC) chassis and scaled-out fabric coupler (SFC) chassis. Each DLC includes a network processor and fabric ports. Each network processor includes a fabric interface in communication with the fabric ports of that DLC. Each SFC includes at least one fabric element and SFC fabric ports. A fabric communication link connects each SFC fabric port to one DLC fabric port. Each fabric communication link includes cell-carrying lanes. Each fabric element detects connectivity between each SFC fabric port of that SFC and one DLC fabric port over a fabric communication link. Each SFC reads a connectivity matrix from fabric element chips and sends connection information corresponding to the detected connectivity from that SFC to a central agent. A network element includes the central agent, which, when executed, constructs a topology of the distributed fabric system from the connection information sent from each SFC.

摘要翻译： 分布式架构系统具有分布式线卡（DLC）机箱和扩展架构耦合器（SFC）机箱。 每个DLC包括一个网络处理器和fabric端口。 每个网络处理器包括与该DLC的结构端口通信的结构接口。 每个SFC包括至少一个fabric元素和SFC fabric端口。 Fabric通信链路将每个SFC Fabric端口连接到一个DLC fabric端口。 每个结构通信链路包括蜂窝载波通道。 每个结构元素通过结构通信链路检测该SFC的每个SFC结构端口与一个DLC结构端口之间的连接。 每个SFC从Fabric元素芯片读取连接矩阵，并将与该SFC的检测到的连接相对应的连接信息发送到中央代理。 网元包括中央代理，当执行时，中继代理从每个SFC发送的连接信息中构建分布式架构系统的拓扑。

公开(公告)号：US09054989B2

公开(公告)日：2015-06-09

申请号：US13454987

申请日：2012-04-24

申请人： Sushma Anantharam ,  Nirapada Ghosh ,  Dayavanti Gopal Kamath ,  Keshav Govind Kamble ,  Dar-Ren Leu ,  Chandarani J. Mendon ,  Vijoy Pandey ,  Nandakumar Peethambaram

发明人： Sushma Anantharam ,  Nirapada Ghosh ,  Dayavanti Gopal Kamath ,  Keshav Govind Kamble ,  Dar-Ren Leu ,  Chandarani J. Mendon ,  Vijoy Pandey ,  Nandakumar Peethambaram

IPC分类号： H04L12/28 ,  G06F15/173 ,  G06F13/00 ,  H04L12/947 ,  H04L12/931

CPC分类号： H04L49/356 ,  H04L12/413 ,  H04L41/12 ,  H04L41/22 ,  H04L49/256 ,  H04L49/65 ,  H04W36/22

摘要： A distributed fabric system has distributed line card (DLC) chassis and scaled-out fabric coupler (SFC) chassis. Each DLC includes a network processor and fabric ports. Each network processor includes a fabric interface in communication with the fabric ports of that DLC. Each SFC includes at least one fabric element and SFC fabric ports. A fabric communication link connects each SFC fabric port to one DLC fabric port. Each fabric communication link includes cell-carrying lanes. Each fabric element detects connectivity between each SFC fabric port of that SFC and one DLC fabric port over a fabric communication link. Each SFC reads a connectivity matrix from fabric element chips and sends connection information corresponding to the detected connectivity from that SFC to a central agent. A network element includes the central agent, which, when executed, constructs a topology of the distributed fabric system from the connection information sent from each SFC.

摘要翻译： 分布式架构系统具有分布式线卡（DLC）机箱和扩展架构耦合器（SFC）机箱。 每个DLC包括一个网络处理器和fabric端口。 每个网络处理器包括与该DLC的结构端口通信的结构接口。 每个SFC包括至少一个fabric元素和SFC fabric端口。 Fabric通信链路将每个SFC Fabric端口连接到一个DLC fabric端口。 每个结构通信链路包括蜂窝载波通道。 每个结构元素通过结构通信链路检测该SFC的每个SFC结构端口与一个DLC结构端口之间的连接。 每个SFC从Fabric元素芯片读取连接矩阵，并将与该SFC的检测到的连接相对应的连接信息发送到中央代理。 网元包括中央代理，当执行时，中继代理从每个SFC发送的连接信息中构建分布式架构系统的拓扑。

公开(公告)号：US08767722B2

公开(公告)日：2014-07-01

申请号：US13594993

申请日：2012-08-27

申请人： Keshav Kamble ,  Amitabha Biswas ,  Dar-Ren Leu ,  Chandarani J. Mendon ,  Nilanjan Mukherjee ,  Vijoy Pandey

发明人： Keshav Kamble ,  Amitabha Biswas ,  Dar-Ren Leu ,  Chandarani J. Mendon ,  Nilanjan Mukherjee ,  Vijoy Pandey

IPC分类号： H04L12/50 ,  H04Q11/00

CPC分类号： H04L49/70 ,  H04L47/20 ,  H04L47/627 ,  H04L49/356

摘要： A switching network includes an upper tier having a master switch and a lower tier including a plurality of lower tier entities. The master switch, which has a plurality of ports each coupled to a respective lower tier entity, implements on each of the ports a plurality of virtual ports each corresponding to a respective one of a plurality of remote physical interfaces (RPIs) at the lower tier entity coupled to that port. Data traffic communicated between the master switch and RPIs is queued within virtual ports that correspond to the RPIs with which the data traffic is communicated. The master switch applies data handling to the data traffic in accordance with a control policy based at least upon the virtual port in which the data traffic is queued, such that the master switch applies different policies to data traffic queued to two virtual ports on the same port of the master switch.

摘要翻译： 交换网络包括具有主交换机的上层和包括多个下层实体的较低层。 主交换机具有多个端口，每个端口各自耦合到相应的下层实体，在每个端口上实现多个虚拟端口，每个虚拟端口对应于下层的多个远程物理接口（RPI）中的相应一个 实体耦合到该端口。 在主交换机和RPI之间通信的数据业务在对应于数据业务与之通信的RPI的虚拟端口内排队。 主交换机至少基于数据流量排队的虚拟端口，根据控制策略对数据流量应用数据处理，使得主交换机将不同的策略应用于排队到同一个虚拟端口的数据业务 主交换机的端口

公开(公告)号：US09065745B2

公开(公告)日：2015-06-23

申请号：US13267459

申请日：2011-10-06

申请人： Nilanjan Mukherjee ,  Dayavanti G. Karnath ,  Keshav Kamble ,  Dar-Ren Leu ,  Vijoy Pandey

发明人： Nilanjan Mukherjee ,  Dayavanti G. Karnath ,  Keshav Kamble ,  Dar-Ren Leu ,  Vijoy Pandey

IPC分类号： H04L12/26 ,  H04L12/801 ,  H04L12/24 ,  H04L12/937 ,  H04L12/803 ,  H04L12/729

CPC分类号： H04L47/12 ,  H04L41/12 ,  H04L43/0882 ,  H04L43/12 ,  H04L45/125 ,  H04L47/122 ,  H04L49/254

摘要： A switch for a switching network includes a plurality of ports for communicating data traffic and a switch controller that controls switching between the plurality of ports. The switch controller selects a forwarding path for the data traffic based on at least topological congestion information for the switching network. In a preferred embodiment, the topological congestion information includes sFlow topological congestion information and the switch controller includes an sFlow client that receives the sFlow topological congestion information from an sFlow controller in the switching network.

公开(公告)号：US20120320749A1

公开(公告)日：2012-12-20

申请号：US13594993

申请日：2012-08-27

申请人： Keshav Kamble ,  Amitabha Biswas ,  Dar-ren Leu ,  Chandarani J. Mendon ,  Nilanjan Mukherjee ,  Vijoy Pandey

发明人： Keshav Kamble ,  Amitabha Biswas ,  Dar-ren Leu ,  Chandarani J. Mendon ,  Nilanjan Mukherjee ,  Vijoy Pandey

IPC分类号： H04L12/24 ,  H04L12/56

CPC分类号： H04L49/70 ,  H04L47/20 ,  H04L47/627 ,  H04L49/356

摘要： A switching network includes an upper tier having a master switch and a lower tier including a plurality of lower tier entities. The master switch, which has a plurality of ports each coupled to a respective lower tier entity, implements on each of the ports a plurality of virtual ports each corresponding to a respective one of a plurality of remote physical interfaces (RPIs) at the lower tier entity coupled to that port. Data traffic communicated between the master switch and RPIs is queued within virtual ports that correspond to the RPIs with which the data traffic is communicated. The master switch applies data handling to the data traffic in accordance with a control policy based at least upon the virtual port in which the data traffic is queued, such that the master switch applies different policies to data traffic queued to two virtual ports on the same port of the master switch.

公开(公告)号：US20120287785A1

公开(公告)日：2012-11-15

申请号：US13107895

申请日：2011-05-14

申请人： Keshav Kamble ,  Amitabha Biswas ,  Dar-ren Leu ,  Chandarani J. Mendon ,  Nilanjan Mukherjee ,  Vijoy Pandey

发明人： Keshav Kamble ,  Amitabha Biswas ,  Dar-ren Leu ,  Chandarani J. Mendon ,  Nilanjan Mukherjee ,  Vijoy Pandey

IPC分类号： H04L12/26 ,  H04L12/56

CPC分类号： H04L49/70 ,  H04L47/20 ,  H04L47/627 ,  H04L49/356

摘要： A switching network includes an upper tier having a master switch and a lower tier including a plurality of lower tier entities. The master switch, which has a plurality of ports each coupled to a respective lower tier entity, implements on each of the ports a plurality of virtual ports each corresponding to a respective one of a plurality of remote physical interfaces (RPIs) at the lower tier entity coupled to that port. Data traffic communicated between the master switch and RPIs is queued within virtual ports that correspond to the RPIs with which the data traffic is communicated. The master switch applies data handling to the data traffic in accordance with a control policy based at least upon the virtual port in which the data traffic is queued, such that the master switch applies different policies to data traffic queued to two virtual ports on the same port of the master switch.

摘要翻译： 交换网络包括具有主交换机的上层和包括多个下层实体的较低层。 主交换机具有多个端口，每个端口各自耦合到相应的下层实体，在每个端口上实现多个虚拟端口，每个虚拟端口对应于下层的多个远程物理接口（RPI）中的相应一个 实体耦合到该端口。 在主交换机和RPI之间通信的数据业务在对应于数据业务与之通信的RPI的虚拟端口内排队。 主交换机至少基于数据流量排队的虚拟端口，根据控制策略对数据流量应用数据处理，使得主交换机将不同的策略应用于排队到同一个虚拟端口的数据业务 主交换机的端口

公开(公告)号：US08942258B2

公开(公告)日：2015-01-27

申请号：US13619158

申请日：2012-09-14

申请人： Keshav G. Kamble ,  Dar-Ren Leu ,  Vijoy Pandey

发明人： Keshav G. Kamble ,  Dar-Ren Leu ,  Vijoy Pandey

IPC分类号： H04J3/24

CPC分类号： H04L49/901 ,  H04L49/256

摘要： Reassembly of member cells into a packet comprises receiving an incoming member cell of a packet from a switching fabric wherein each member cell comprises a segment of the packet and a header, generating a reassembly key using selected information from the incoming member cell header wherein the selected information is the same for all member cells of the packet, checking a reassembly table in a content addressable memory to find an entry that includes a logic key matching the reassembly key, and using a content index in the found entry and a sequence number of the incoming member cell within the packet, to determine a location offset in a reassembly buffer area for storing the incoming member cell at said location offset in the reassembly buffer area for the packet for reassembly.

摘要翻译： 将成员小区重新组装成分组包括从交换结构接收分组的传入成员小区，其中每个成员小区包括分组的分段和报头，使用来自成员小区头部的所选信息生成重组密钥，其中所选择的 信息对于分组的所有成员单元是相同的，检查内容可寻址存储器中的重组表以找到包括与重组密钥匹配的逻辑密钥的条目，并且使用所找到的条目中的内容索引和序列号 确定分组内的传入成员小区，以确定重新组装缓冲区域中的位置偏移量，用于将重新组装的分组的重新组装缓冲区域中的所述位置偏移处的入站成员小区存储。

公开(公告)号：US08804572B2

公开(公告)日：2014-08-12

申请号：US13280802

申请日：2011-10-25

申请人： Dayavanti Gopal Kamath ,  Keshav Govind Kamble ,  Dar-Ren Leu ,  Vijoy Pandey

发明人： Dayavanti Gopal Kamath ,  Keshav Govind Kamble ,  Dar-Ren Leu ,  Vijoy Pandey

IPC分类号： H04L12/28 ,  H04L12/56 ,  G06F15/173

CPC分类号： H04L49/25 ,  H04L49/356

摘要： Featured are a system and method for providing a distributed switch system (DSS) in a TRILL-compliant network. An ingress network device in the TRILL-compliant network provides data to a received packet. The data includes instructions related to a feature of the DSS. The instructions are inserted into a TRILL header generated at the ingress network device. The TRILL header is output to an egress network device in the TRILL-compliant network. A determination is made whether the ingress network device and the egress network device are members of the DSS. The instructions are processed by the egress network device in response to determining that ingress and egress devices are members of the DSS.

摘要翻译： 特色是在符合TRILL的网络中提供分布式交换系统（DSS）的系统和方法。 TRILL兼容网络中的入口网络设备向接收的分组提供数据。 数据包括与DSS的特征相关的指令。 这些指令被插入到在入口网络设备处产生的TRILL头部中。 TRILL标头输出到TRILL兼容网络中的出口网络设备。 确定入口网络设备和出口网络设备是否是DSS的成员。 响应于确定入口和出口设备是DSS的成员，出口网络设备处理指令。

公开(公告)号：US20140079076A1

公开(公告)日：2014-03-20

申请号：US13619283

申请日：2012-09-14

申请人： Keshav G. Kamble ,  Dar-Ren Leu ,  Chandarani J. Mendon ,  Vijoy Pandey

发明人： Keshav G. Kamble ,  Dar-Ren Leu ,  Chandarani J. Mendon ,  Vijoy Pandey

IPC分类号： H04L12/24

CPC分类号： H04L49/9057 ,  H04L1/0083

摘要： Reassembly of fragments into a packet comprises receiving an incoming fragment of a packet from a network wherein each fragment comprises a segment of the packet and a header, generating a reassembly key using selected information from the incoming fragment header wherein the selected information is the same for all fragments of the packet, checking a reassembly table in a content addressable memory to find an entry that includes a logic key matching the reassembly key, and using a content index in the found entry and a sequence number of the incoming fragment within the packet, to determine a location offset in a reassembly buffer area for storing the incoming fragment at said location offset in the reassembly buffer area for the packet for reassembly.

摘要翻译： 将片段重新组装成分组包括从网络接收分组的输入片段，其中每个片段包括分组的片段和标题，使用来自片段标题的所选信息生成重组密钥，其中所选择的信息对于 分组的所有片段，检查内容可寻址存储器中的重组表，以找到包括与重组密钥匹配的逻辑密钥的条目，以及使用所找到的条目中的内容索引和分组内的传入片段的序列号， 以确定重新组装缓冲区域中的位置偏移量，用于将用于重新组装的分组的重新组装缓冲区域中的所述位置偏移处的输入片段存储。

公开(公告)号：US20140079075A1

公开(公告)日：2014-03-20

申请号：US13619158

申请日：2012-09-14

申请人： Keshav G. Kamble ,  Dar-Ren Leu ,  Vijoy Pandey

发明人： Keshav G. Kamble ,  Dar-Ren Leu ,  Vijoy Pandey

IPC分类号： H04L29/02

CPC分类号： H04L49/901 ,  H04L49/256

摘要： Reassembly of member cells into a packet comprises receiving an incoming member cell of a packet from a switching fabric wherein each member cell comprises a segment of the packet and a header, generating a reassembly key using selected information from the incoming member cell header wherein the selected information is the same for all member cells of the packet, checking a reassembly table in a content addressable memory to find an entry that includes a logic key matching the reassembly key, and using a content index in the found entry and a sequence number of the incoming member cell within the packet, to determine a location offset in a reassembly buffer area for storing the incoming member cell at said location offset in the reassembly buffer area for the packet for reassembly.

摘要翻译： 将成员小区重新组装成分组包括从交换结构接收分组的传入成员小区，其中每个成员小区包括分组的分段和报头，使用来自成员小区头部的所选信息生成重组密钥，其中所选择的 信息对于分组的所有成员单元是相同的，检查内容可寻址存储器中的重组表以找到包括与重组密钥匹配的逻辑密钥的条目，并且使用所找到的条目中的内容索引和序列号 确定分组内的传入成员小区，以确定重新组装缓冲区域中的位置偏移量，用于将重新组装的分组的重新组装缓冲区域中的所述位置偏移处的入站成员小区存储。