公开(公告)号：US09497073B2

公开(公告)日：2016-11-15

申请号：US13314455

申请日：2011-12-08

Applicant: Dayavanti G. Kamath ,  Keshav Kamble ,  Dar-Ren Leu ,  Nilanjan Mukherjee ,  Vijoy A. Pandey

Inventor： Dayavanti G. Kamath ,  Keshav Kamble ,  Dar-Ren Leu ,  Nilanjan Mukherjee ,  Vijoy A. Pandey

IPC: H04L12/24 ,  H04L12/721 ,  H04L12/709 ,  H04L12/703

CPC classification number: H04L41/0654 ,  H04L45/245 ,  H04L45/28 ,  H04L45/66 ,  Y02D50/30

Abstract: Each of first and second bridges of a data network having respective links to an external node implement a network bridge component that forwards traffic inside the data network and a virtual bridge component that forwards traffic outside of the data network. A virtual bridge is formed including the virtual bridge components of the first and second bridges and an interswitch link (ISL) between the virtual bridge components of the first and second bridges. Data frames are communicated with each of multiple external network nodes outside the data network via a respective one of multiple link aggregation groups all commonly supported by the virtual bridge.

Abstract translation: 具有到外部节点的各个链接的数据网络的每个第一和第二桥接器实现转发数据网络内的业务的网桥组件，以及在数据网络之外转发业务的虚拟桥组件。 形成虚拟桥，包括第一和第二桥的虚拟桥组件和第一和第二桥的虚拟桥组件之间的交叉连接（ISL）。 数据帧通过虚拟桥通常支持的多个链路聚合组中的相应一个，与数据网络外部的多个外部网络节点中的每一个进行通信。

公开(公告)号：US08837499B2

公开(公告)日：2014-09-16

申请号：US13107894

申请日：2011-05-14

Applicant: Dar-ren Leu ,  Dayavanti G. Kamath ,  Keshav Kamble ,  Jayakrishna Kidambi ,  Deepak Kumar ,  Vijoy Pandey

Inventor： Dar-ren Leu ,  Dayavanti G. Kamath ,  Keshav Kamble ,  Jayakrishna Kidambi ,  Deepak Kumar ,  Vijoy Pandey

IPC: H04L12/56

CPC classification number: H04L49/356 ,  H04L49/70

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08797843B2

公开(公告)日：2014-08-05

申请号：US13595405

申请日：2012-08-27

Applicant: Dayavanti G Kamath ,  Keshav Kamble ,  Dar-ren Leu ,  Vijoy Pandey ,  Nandakumar Peethambaram

Inventor： Dayavanti G Kamath ,  Keshav Kamble ,  Dar-ren Leu ,  Vijoy Pandey ,  Nandakumar Peethambaram

IPC: H04L1/00

CPC classification number: H04L12/4604 ,  H04L41/0668 ,  H04L49/354 ,  H04L49/557

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08594082B2

公开(公告)日：2013-11-26

申请号：US13472964

申请日：2012-05-16

Applicant: Keshav Kamble ,  Dayavanti G. Kamath ,  Jayakrishna Kidambi ,  Dar-Ren Leu ,  Chandarani J. Mendon ,  Vijoy Pandey

Inventor： Keshav Kamble ,  Dayavanti G. Kamath ,  Jayakrishna Kidambi ,  Dar-Ren Leu ,  Chandarani J. Mendon ,  Vijoy Pandey

IPC: H04L12/58

CPC classification number: H04L49/70 ,  H04L49/201 ,  H04L49/205

Abstract: 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.

公开(公告)号：US08588224B2

公开(公告)日：2013-11-19

申请号：US13107893

申请日：2011-05-14

Applicant: Keshav Kamble ,  Dayavanti G. Kamath ,  Jayakrishna Kidambi ,  Dar-Ren Leu ,  Chandarani J. Mendon ,  Vijoy Pandey

Inventor： Keshav Kamble ,  Dayavanti G. Kamath ,  Jayakrishna Kidambi ,  Dar-Ren Leu ,  Chandarani J. Mendon ,  Vijoy Pandey

IPC: H04L12/58

CPC classification number: H04L49/70 ,  H04L49/201 ,  H04L49/205

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20130088959A1

公开(公告)日：2013-04-11

申请号：US13267578

申请日：2011-10-06

Applicant: DAYAVANTI G. KAMATH ,  KESHAV KAMBLE ,  DEEPAK KUMAR ,  DAR-REN LEU ,  VIJOY PANDEY

Inventor： DAYAVANTI G. KAMATH ,  KESHAV KAMBLE ,  DEEPAK KUMAR ,  DAR-REN LEU ,  VIJOY PANDEY

IPC: H04L12/26

CPC classification number: H04L47/35 ,  H04L47/2458 ,  H04L47/39

Abstract: A switching network includes first, second and third switches coupled for communication, such that the first and third switches communicate data traffic via the second switch. The first switch is operable to request transmission credits from the third switch, receive the transmission credits from the third switch and perform transmission of data traffic in reference to the transmission credits. The third switch is operable to receive the request for transmission credits from the first switch, generate the transmission credits and transmit the transmission credits to the first switch via the second switch. The second switch is operable to modify the transmission credits transmitted by the third switch prior to receipt of the transmission credits at the first switch.

公开(公告)号：US20130067049A1

公开(公告)日：2013-03-14

申请号：US13595047

申请日：2012-08-27

Applicant: NIRAPADA GHOSH ,  DAYAVANTI G. KAMATH ,  KESHAV KAMBLE ,  DARREN LEU ,  NILANJAN MUKHERJEE ,  VIJOY PANDEY

Inventor： NIRAPADA GHOSH ,  DAYAVANTI G. KAMATH ,  KESHAV KAMBLE ,  DARREN LEU ,  NILANJAN MUKHERJEE ,  VIJOY PANDEY

IPC: G06F15/177

CPC classification number: H04L41/0816 ,  H04L41/082

Abstract: 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.

公开(公告)号：US20120287787A1

公开(公告)日：2012-11-15

申请号：US13472964

申请日：2012-05-16

Applicant: Keshav Kamble ,  Dayavanti G. Kamath ,  Jayakrishna Kidambi ,  Dar-ren Leu ,  Chandarani J. Mendon ,  Vijoy Pandey

Inventor： Keshav Kamble ,  Dayavanti G. Kamath ,  Jayakrishna Kidambi ,  Dar-ren Leu ,  Chandarani J. Mendon ,  Vijoy Pandey

IPC: H04L12/26

CPC classification number: H04L49/70 ,  H04L49/201 ,  H04L49/205

Abstract: 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.