公开(公告)号：US20150063367A1

公开(公告)日：2015-03-05

申请号：US14028471

申请日：2013-09-16

Applicant: BROADCOM CORPORATION

Inventor： Mark David GRISWOLD ,  Mohammad Kamel ISSA ,  Mohan Venkatachar KALKUNTE

IPC: H04L12/861

CPC classification number: H04L49/9057 ,  H04L49/9063

Abstract: A system for providing oversubscription of pipeline bandwidth comprises a steer module, an absorption buffer, an ingress packet processor (IPP), a memory management unit (MMU), and a main packet buffer. The steer module receives packets that include start of packet (SOP), middle of packet (MOP), and end of packet (EOP) cells, attaches a packet identifier to the cells, passes the MOP and EOP cells to the MMU, and stores the SOP cells and EOP metadata in the absorption buffer. The IPP processes the SOP cells and EOP metadata and passes the same to the MMU. The MMU stores the MOP, EOP, and processed SOP cells in the main packet buffer, combines, upon receiving the processed EOP metadata of each packet, the processed SOP cell, the MOP cells and the EOP cell of each packet to reconstruct each packet, and queues each reconstructed packet in an egress port queue.

Abstract translation: 用于提供流水线带宽超额预订的系统包括转向模块，吸收缓冲器，入口分组处理器（IPP），存储器管理单元（MMU）和主分组缓冲器。 转向模块接收包括分组开始（SOP），分组中间（MOP）和分组结束（EOP）小区的分组，将分组标识符附加到小区，将MOP和EOP小区传递到MMU，并存储 吸收缓冲液中的SOP细胞和EOP元数据。 IPP处理SOP单元和EOP元数据，并将其传递给MMU。 MMU将MOP，EOP和处理的SOP单元存储在主分组缓冲器中，在接收到每个分组的处理的EOP元数据时，将处理的SOP单元，MOP单元和每个分组的EOP单元组合以重构每个分组， 并在出口端口队列中排队每个重构的数据包。

公开(公告)号：US20150271105A1

公开(公告)日：2015-09-24

申请号：US14731827

申请日：2015-06-05

Applicant: Broadcom Corporation

Inventor： Rupa BUDHIA ,  Biju Ravindranatha BABU ,  Mohan Venkatachar KALKUNTE ,  Puneet AGARWAL

IPC: H04L12/937 ,  H04L29/06 ,  H04L12/46 ,  H04L12/709 ,  H04L12/741 ,  H04L12/713

CPC classification number: H04L49/253 ,  H04L12/462 ,  H04L12/4625 ,  H04L45/24 ,  H04L45/245 ,  H04L45/586 ,  H04L45/66 ,  H04L45/74 ,  H04L65/4076 ,  Y02D50/30

Abstract: Disclosed are various embodiments for multi-homing in an extended bridge, including both multi-homing of port extenders and multi-homing of end stations. In various embodiments, a controlling bridge device receives a packet via an ingress virtual port and determines a destination virtual port link aggregation group based at least in part on a destination media access control (MAC) address of an end station in the packet. The controlling bridge device selects one of multiple egress virtual ports of the destination virtual port link aggregation group. The end station of the extended bridge is reachable through any of the egress virtual ports of the destination virtual port link aggregation group. The controlling bridge device forwards the packet through the selected egress virtual port, and the forwarded packet includes an identifier of a destination virtual port to which the end station is connected.

Abstract translation: 公开了用于扩展桥中的多归属的各种实施例，包括端口扩展器的多归位和端站的多归位。 在各种实施例中，控制网桥设备经由入口虚拟端口接收分组，并且至少部分地基于分组中的终端站的目的地媒体访问控制（MAC）地址来确定目的地虚拟端口链路聚合组。 控制网桥设备选择目的虚拟端口链路聚合组的多个出口虚拟端口之一。 扩展桥的终端可以通过目的虚拟端口链路聚合组的任何出口虚拟端口到达。 控制网桥设备通过所选择的出口虚拟端口转发分组，转发的分组包括终端站连接到的目的地虚拟端口的标识符。

公开(公告)号：US20150110132A1

公开(公告)日：2015-04-23

申请号：US14069213

申请日：2013-10-31

Applicant: BROADCOM CORPORATION

Inventor： Vijay Anand PURUSHOTHAMAN ,  Sandeep Kumar RELAN ,  Santhosh UMESH ,  Santosh Kalluthirike JANARDHAN ,  Tarun Kumar VARSHNEY ,  Mohan Venkatachar KALKUNTE ,  Venkateshwar BUDUMA ,  Samir Kishore Sanghani

IPC: H04L12/927 ,  H04L12/931

CPC classification number: H04L49/205 ,  H04L47/20 ,  H04L47/24

Abstract: A device with dynamically tunable heterogeneous latencies includes an input port configured to receive a packet via a network, and a processing module configured to determine multiple values corresponding to a number of qualifying parameters associated with the packet. The processing module may use the values to generate a selector value and may allocate a latency mode to the packet based on the selector value.

Abstract translation: 具有动态可调谐异构延迟的设备包括被配置为经由网络接收分组的输入端口以及被配置为确定与与分组相关联的多个限定参数对应的多个值的处理模块。 处理模块可以使用这些值来生成选择器值，并且可以基于选择器值为分组分配等待时间模式。

公开(公告)号：US20170228335A1

公开(公告)日：2017-08-10

申请号：US15063387

申请日：2016-03-07

Applicant: BROADCOM CORPORATION

Inventor： Surendra ANUBOLU ,  Mohan Venkatachar KALKUNTE

IPC: G06F13/40 ,  G06F13/42 ,  G06F9/48

CPC classification number: G06F13/4022 ,  G06F9/4881 ,  G06F13/4282

Abstract: A device implementing a scalable low-latency mesh may include a memory management unit, an egress processor, and an egress cell circuit that includes at least a first queue and a second queue. The memory management unit may be configured to buffer first cells for transmission. The egress cell circuit may be configured to queue the first cells from the memory management unit in the first queue, queue second cells from an off-chip memory management unit of another device in the second queue, and schedule the first cells from the first queue and second cells from the second queue for transmission via an egress processor. The egress processor may be configured to transmit the first and second cells over at least one first port.

公开(公告)号：US20150244629A1

公开(公告)日：2015-08-27

申请号：US14628173

申请日：2015-02-20

Applicant: BROADCOM CORPORATION

Inventor： Santanu SINHA ,  Mohan Venkatachar KALKUNTE

IPC: H04L12/801 ,  H04L12/803

CPC classification number: H04L47/18 ,  H04L47/122 ,  H04L47/28 ,  H04L49/30 ,  H04L49/45 ,  H04L49/50 ,  H04L49/506 ,  H04L49/508

Abstract: A network device implementing the subject system for end to end flow control may include at least one processor circuit that may be configured to detect that congestion is being experienced by at least one queue of a port and identify another network device that is transmitting downstream traffic being queued at the at least one queue of the port that is at least partially causing the congestion. The at least one processor circuit may be further configured to generate an end to end flow control message that comprises an identifier of the port, the end to end flow control message indicating that the downstream traffic should be flow controlled at the another network device. The at least one processor circuit may be further configured to transmit, out-of-band and through at least one intermediary network device, the end to end flow control message to the another network device.

Abstract translation: 实现用于端到端流量控制的主题系统的网络设备可以包括至少一个处理器电路，其可以被配置为检测端口的至少一个队列正在经历拥塞，并且识别正在传输下行流量的另一个网络设备 在至少部分地导致拥塞的端口的至少一个队列排队。 所述至少一个处理器电路还可以被配置为生成端到端流控制消息，其包括所述端口的标识符，所述端到端流控制消息指示所述下行业务应在所述另一网络设备处流量控制。 所述至少一个处理器电路还可以被配置为向所述另一网络设备发送带外并且通过至少一个中间网络设备端到端流控制消息。