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1. 发明授权

US08767529B2 High availability distributed fabric protocol (DFP) switching network architecture 有权
公开(公告)号：US08767529B2
公开(公告)日：2014-07-01
申请号：US13229891
申请日：2011-09-12
申请人： Dayavanti G. Kamath , Keshav Kamble , Dar-Ren Leu , Vijoy Pandey , Nandakumar Peethambaram
发明人： Dayavanti G. Kamath , Keshav Kamble , Dar-Ren Leu , Vijoy Pandey , Nandakumar Peethambaram
IPC分类号： H04L1/00
CPC分类号： H04L12/4604 , H04L41/0668 , H04L49/354 , H04L49/557
摘要： In a switching network, each of a plurality of lower tier entities is coupled to each of multiple master switches at an upper tier by a respective one of multiple links. At each of the multiple master switches, a plurality of virtual ports each corresponding to a respective one of a plurality of remote physical interfaces (RPIs) at the lower tier are implemented on each of a plurality of ports. Each of the plurality of lower tier entities implements a respective egress port mapping indicating which of its plurality of RPIs transmits egress data traffic through each of its multiple links to the multiple master switches. In response to failure of one of the multiple links coupling a particular lower tier entity to a particular master switch, the particular lower tier entity updates its egress port mapping to redirect egress data traffic to another of the multiple master switches without packet dropping.

2. 发明授权

US08797843B2 High availability distributed fabric protocol (DFP) switching network architecture 有权
标题翻译：高可用性分布式架构协议（DFP）交换网络架构
公开(公告)号：US08797843B2
公开(公告)日：2014-08-05
申请号：US13595405
申请日：2012-08-27
申请人： Dayavanti G Kamath , Keshav Kamble , Dar-ren Leu , Vijoy Pandey , Nandakumar Peethambaram
发明人： Dayavanti G Kamath , Keshav Kamble , Dar-ren Leu , Vijoy Pandey , Nandakumar Peethambaram
IPC分类号： H04L1/00
CPC分类号： H04L12/4604 , H04L41/0668 , H04L49/354 , H04L49/557
摘要： In a switching network, each of a plurality of lower tier entities is coupled to each of multiple master switches at an upper tier by a respective one of multiple links. At each of the multiple master switches, a plurality of virtual ports each corresponding to a respective one of a plurality of remote physical interfaces (RPIs) at the lower tier are implemented on each of a plurality of ports. Each of the plurality of lower tier entities implements a respective egress port mapping indicating which of its plurality of RPIs transmits egress data traffic through each of its multiple links to the multiple master switches. In response to failure of one of the multiple links coupling a particular lower tier entity to a particular master switch, the particular lower tier entity updates its egress port mapping to redirect egress data traffic to another of the multiple master switches without packet dropping.
摘要翻译：在交换网络中，多个下层实体中的每一个通过多个链路中的相应一个在较高层被耦合到多个主交换机中的每一个。在多个主交换机中的每一个上，在多个端口中的每个端口上实现多个虚拟端口，每个虚拟端口分别对应于较低级别的多个远程物理接口（RPI）中的相应一个。多个下层实体中的每一个实现相应的出口端口映射，指示其多个RPI中的哪一个通过其到多个主交换机的多个链路中的每一个传送出口数据业务。响应于将特定下层实体耦合到特定主交换机的多个链路之一的故障，特定的下层实体更新其出口端口映射以将出口数据业务重定向到多个主交换机中的另一个而不丢包。

3. 发明申请

US20130259038A1 COMMUNICATION TRANSPORT PROTOCOL FOR DISTRIBUTED INFORMATION TECHNOLOGY ARCHITECTURES 有权
公开(公告)号：US20130259038A1
公开(公告)日：2013-10-03
申请号：US13434705
申请日：2012-03-29
申请人： Sushma Anantharam , Stephan Benny , Nirapada Ghosh , Dayavanti G. Kamath , Keshav G. Kamble , Dar-Ren Leu , Chandarani J. Mendon , Nilanjan Mukherjee , Vijoy Pandey , Nandakumar Peethambaram
发明人： Sushma Anantharam , Stephan Benny , Nirapada Ghosh , Dayavanti G. Kamath , Keshav G. Kamble , Dar-Ren Leu , Chandarani J. Mendon , Nilanjan Mukherjee , Vijoy Pandey , Nandakumar Peethambaram
IPC分类号： H04L12/56
CPC分类号： H04L45/44 , H04L45/66
摘要： A communication protocol in a layer two (L2) network switch comprises, in response to a service request by a source node, registering the source node for packet communication service. The protocol further comprises forwarding one or more packets from the registered source node to one or more destination nodes. The protocol further comprises receiving packets from one or more destination nodes and forwarding each received packet to a corresponding registered node.

4. 发明授权

US08792489B2 Communication transport protocol for distributed information technology architectures 有权
标题翻译：分布式信息技术架构的通信传输协议
公开(公告)号：US08792489B2
公开(公告)日：2014-07-29
申请号：US13434705
申请日：2012-03-29
申请人： Sushma Anantharam , Stephan Benny , Nirapada Ghosh , Dayavanti G. Kamath , Keshav G. Kamble , Dar-Ren Leu , Chandarani J. Mendon , Nilanjan Mukherjee , Vijoy Pandey , Nandakumar Peethambaram
发明人： Sushma Anantharam , Stephan Benny , Nirapada Ghosh , Dayavanti G. Kamath , Keshav G. Kamble , Dar-Ren Leu , Chandarani J. Mendon , Nilanjan Mukherjee , Vijoy Pandey , Nandakumar Peethambaram
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L45/44 , H04L45/66
摘要： A communication protocol in a layer two (L2) network switch comprises, in response to a service request by a source node, registering the source node for packet communication service. The protocol further comprises forwarding one or more packets from the registered source node to one or more destination nodes. The protocol further comprises receiving packets from one or more destination nodes and forwarding each received packet to a corresponding registered node.
摘要翻译：第二层（L2）网络交换机中的通信协议响应于源节点的服务请求，注册用于分组通信服务的源节点。协议还包括将一个或多个分组从注册的源节点转发到一个或多个目的地节点。该协议还包括从一个或多个目的地节点接收分组，并将每个接收到的分组转发到相应的注册节点。

5. 发明授权

US08717874B2 Updating a switch software image in a distributed fabric protocol (DFP) switching network 有权
标题翻译：在分布式架构协议（DFP）交换网络中更新交换机软件映像
公开(公告)号：US08717874B2
公开(公告)日：2014-05-06
申请号：US13595047
申请日：2012-08-27
申请人： Nirapada Ghosh , Dayavanti G Kamath , Keshav Kamble , Dar-Ren Leu , Nilanjan Mukherjee , Vijoy Pandey
发明人： Nirapada Ghosh , Dayavanti G Kamath , Keshav Kamble , Dar-Ren Leu , Nilanjan Mukherjee , Vijoy Pandey
IPC分类号： G01R31/08
CPC分类号： H04L41/0816 , H04L41/082
摘要： A switching network has a plurality of switches including at least a switch and a managing master switch. At the managing master switch, a first capability vector (CV) is received from the switch. The managing master switch determines whether the first CV is compatible with at least a second CV in a network membership data structure that records CVs of multiple switches in the switching network. In response to detecting an incompatibility, the managing master switch initiates an image update to an image of the switch. In response to a failure of the image update at the switch, the switch boots utilizing a mini-DC module that reestablishes communication between the switch with the managing master switch and retries the image update.
摘要翻译：交换网络具有至少包括交换机和管理主交换机的多个交换机。在管理主交换机上，从交换机接收到第一个能力向量（CV）。管理主交换机确定第一个CV是否与记录交换网络中多个交换机的CV的网络成员资格数据结构中的至少第二个CV兼容。响应于检测到不兼容性，管理主交换机启动对交换机的图像的图像更新。为了响应交换机上的图像更新失败，开关使用小直流模块启动，该模块重新建立交换机与管理主交换机之间的通信，并重试映像更新。

6. 发明申请

US20120287786A1 PRIORITY BASED FLOW CONTROL IN A DISTRIBUTED FABRIC PROTOCOL (DFP) SWITCHING NETWORK ARCHITECTURE 有权
标题翻译：分布式织物协议（DFP）切换网络架构中基于优先级的流量控制
公开(公告)号：US20120287786A1
公开(公告)日：2012-11-15
申请号：US13107893
申请日：2011-05-14
申请人： Keshav Kamble , Dayavanti G. Kamath , Jayakrishna Kidambi , Dar-ren Leu , Chandarani J. Mendon , Vijoy Pandey
发明人： Keshav Kamble , Dayavanti G. Kamath , Jayakrishna Kidambi , Dar-ren Leu , Chandarani J. Mendon , Vijoy Pandey
IPC分类号： H04L12/26
CPC分类号： H04L49/70 , H04L49/201 , H04L49/205
摘要： A switching network includes an upper tier and a lower tier including a plurality of lower tier entities. A master switch in the upper tier, 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 on lower tier entities with which the data traffic is communicated. The master switch enforces priority-based flow control (PFC) on data traffic of a given virtual port by transmitting, to a lower tier entity on which a corresponding RPI resides, a PFC data frame specifying priorities for at least two different classes of data traffic communicated by the particular RPI.
摘要翻译：交换网络包括包括多个下层实体的上层和下层。上层的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多个远程物理接口（RPI）中的相应的一个，在与该端口相连的较低层实体上。在主交换机和RPI之间通信的数据业务在虚拟端口内排队，对应于数据业务与之通信的较低层实体上的RPI。主交换机通过向对应的RPI所驻留的较低层实体发送指定至少两个不同类别的数据业务的优先级的PFC数据帧来对给定虚拟端口的数据流量执行基于优先级的流控制（PFC）由特定RPI传达。

7. 发明授权

US08837499B2 Distributed fabric protocol (DFP) switching network architecture 有权
标题翻译：分布式架构协议（DFP）交换网络架构
公开(公告)号：US08837499B2
公开(公告)日：2014-09-16
申请号：US13107894
申请日：2011-05-14
申请人： Dar-ren Leu , Dayavanti G. Kamath , Keshav Kamble , Jayakrishna Kidambi , Deepak Kumar , Vijoy Pandey
发明人： Dar-ren Leu , Dayavanti G. Kamath , Keshav Kamble , Jayakrishna Kidambi , Deepak Kumar , Vijoy Pandey
IPC分类号： H04L12/56
CPC分类号： H04L49/356 , H04L49/70
摘要： A switching network includes an upper tier including a master switch and a lower tier including a plurality of lower tier entities. The master switch includes a plurality of ports each coupled to a respective one of the plurality of lower tier entities. Each of the plurality of ports includes 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. Each of the plurality of ports also includes a receive interface that, responsive to receipt of data traffic from a particular lower tier entity among the plurality of lower tier entities, queues the data traffic to the virtual port among the plurality of virtual ports that corresponds to the RPI on the particular lower tier entity that was the source of the data traffic. The master switch further includes a switch controller that switches data traffic from the virtual port to an egress port among the plurality of ports from which the data traffic is forwarded.
摘要翻译：交换网络包括包括主交换机和包括多个下层实体的下层的上层。主交换机包括多个端口，每个端口耦合到多个下层实体中的相应一个。多个端口中的每一个包括多个虚拟端口，每个虚拟端口对应于耦合到该端口的下层实体的多个远程物理接口（RPI）中的相应一个。多个端口中的每一个还包括接收接口，响应于在多个较低层实体中从特定低层实体接收的数据流量将数据流量排队到对应于多个虚拟端口的多个虚拟端口中的虚拟端口作为数据流量来源的特定下层实体的RPI。主交换机还包括交换控制器，用于将数据业务从虚拟端口切换到数据业务转发的多个端口中的出口端口。

8. 发明授权

US08594082B2 Priority based flow control in a distributed fabric protocol (DFP) switching network architecture 有权
公开(公告)号：US08594082B2
公开(公告)日：2013-11-26
申请号：US13472964
申请日：2012-05-16
申请人： Keshav Kamble , Dayavanti G. Kamath , Jayakrishna Kidambi , Dar-Ren Leu , Chandarani J. Mendon , Vijoy Pandey
发明人： Keshav Kamble , Dayavanti G. Kamath , Jayakrishna Kidambi , Dar-Ren Leu , Chandarani J. Mendon , Vijoy Pandey
IPC分类号： H04L12/58
CPC分类号： H04L49/70 , H04L49/201 , H04L49/205
摘要： A switching network includes an upper tier and a lower tier including a plurality of lower tier entities. A master switch in the upper tier, 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 on lower tier entities with which the data traffic is communicated. The master switch enforces priority-based flow control (PFC) on data traffic of a given virtual port by transmitting, to a lower tier entity on which a corresponding RPI resides, a PFC data frame specifying priorities for at least two different classes of data traffic communicated by the particular RPI.

9. 发明授权

US08588224B2 Priority based flow control in a distributed fabric protocol (DFP) switching network architecture 有权
标题翻译：分布式结构协议（DFP）交换网络架构中基于优先级的流量控制
公开(公告)号：US08588224B2
公开(公告)日：2013-11-19
申请号：US13107893
申请日：2011-05-14
申请人： Keshav Kamble , Dayavanti G. Kamath , Jayakrishna Kidambi , Dar-Ren Leu , Chandarani J. Mendon , Vijoy Pandey
发明人： Keshav Kamble , Dayavanti G. Kamath , Jayakrishna Kidambi , Dar-Ren Leu , Chandarani J. Mendon , Vijoy Pandey
IPC分类号： H04L12/58
CPC分类号： H04L49/70 , H04L49/201 , H04L49/205
摘要： A switching network includes an upper tier and a lower tier including a plurality of lower tier entities. A master switch in the upper tier, 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 on lower tier entities with which the data traffic is communicated. The master switch enforces priority-based flow control (PFC) on data traffic of a given virtual port by transmitting, to a lower tier entity on which a corresponding RPI resides, a PFC data frame specifying priorities for at least two different classes of data traffic communicated by the particular RPI.
摘要翻译：交换网络包括包括多个下层实体的上层和下层。上层的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多个远程物理接口（RPI）中的相应的一个，在与该端口相连的较低层实体上。在主交换机和RPI之间通信的数据业务在虚拟端口内排队，对应于数据业务与之通信的较低层实体上的RPI。主交换机通过向对应的RPI所驻留的较低层实体发送指定至少两个不同类别的数据业务的优先级的PFC数据帧来对给定虚拟端口的数据流量执行基于优先级的流控制（PFC）由特定RPI传达。

10. 发明申请

US20120287787A1 PRIORITY BASED FLOW CONTROL IN A DISTRIBUTED FABRIC PROTOCOL (DFP) SWITCHING NETWORK ARCHITECTURE 有权
公开(公告)号：US20120287787A1
公开(公告)日：2012-11-15
申请号：US13472964
申请日：2012-05-16
申请人： Keshav Kamble , Dayavanti G. Kamath , Jayakrishna Kidambi , Dar-ren Leu , Chandarani J. Mendon , Vijoy Pandey
发明人： Keshav Kamble , Dayavanti G. Kamath , Jayakrishna Kidambi , Dar-ren Leu , Chandarani J. Mendon , Vijoy Pandey
IPC分类号： H04L12/26
CPC分类号： H04L49/70 , H04L49/201 , H04L49/205
摘要： A switching network includes an upper tier and a lower tier including a plurality of lower tier entities. A master switch in the upper tier, 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 on lower tier entities with which the data traffic is communicated. The master switch enforces priority-based flow control (PFC) on data traffic of a given virtual port by transmitting, to a lower tier entity on which a corresponding RPI resides, a PFC data frame specifying priorities for at least two different classes of data traffic communicated by the particular RPI.

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