公开(公告)号：US20150138970A1

公开(公告)日：2015-05-21

申请号：US14610024

申请日：2015-01-30

Applicant: BROADCOM CORPORATION

Inventor： Vahid TABATABAEE ,  Bruce Hui Kwan ,  Puneet Agarwal

IPC: H04L12/801 ,  H04L12/825 ,  H04L12/26

CPC classification number: H04L47/12 ,  H04L43/062 ,  H04L43/0882 ,  H04L47/11 ,  H04L47/20 ,  H04L47/25 ,  H04L47/26 ,  H04L47/52 ,  H04L47/522 ,  H04L49/15

Abstract: In various embodiments, a system includes a switch comprising a resource that is shared between multiple objects. The switch comprises circuitry that determines a congestion metric for the switch in response to an amount of used of the resource by the objects. The circuitry determines a feedback parameter that is responsive to the congestion metric. The circuitry generates a congestion notification message that comprises a congestion feedback value responsive to the feedback parameter. In further embodiments, a system includes a switch that processes data for a first data link layer access network. The switch includes circuitry that identifies whether a received packet originated from a source device that shares the same network layer access layer as the switch. If the source device shares the same network layer access network as the switch, the circuitry generates a congestion notification message comprising a congestion feedback value for the switch.

Abstract translation: 在各种实施例中，系统包括包括在多个对象之间共享的资源的交换机。 交换机包括响应于由对象使用的资源量来确定交换机的拥塞度量的电路。 电路确定响应于拥塞度量的反馈参数。 电路产生包含响应于反馈参数的拥塞反馈值的拥塞通知消息。 在另外的实施例中，系统包括处理第一数据链路层接入网络的数据的交换机。 交换机包括识别接收到的分组是否源自与交换机共享相同网络层接入层的源设备的电路。 如果源设备与交换机共享相同的网络层接入网络，则电路产生包含交换机的拥塞反馈值的拥塞通知消息。

公开(公告)号：US20150055478A1

公开(公告)日：2015-02-26

申请号：US14054766

申请日：2013-10-15

Applicant: Broadcom Corporation

Inventor： Vahid TABATABAEE ,  Bruce Hui Kwan

IPC: H04L12/801 ,  H04L12/863 ,  H04L12/26

CPC classification number: H04L47/11 ,  H04L47/266 ,  H04L47/29

Abstract: A device for performing congestion detection and management at a node of a network may include a congestion management module to monitor an arrival and a departure rate of data packets associated with a queue, a queue size, or a rate of change of the queue size. The congestion management module may identify the queue as a congested queue by one of determining that the arrival rate of the data packets associated with the queue is larger than the departure rate of the data packets associated with the queue, the queue size is larger than a first threshold, or the rate of change of the queue size is larger than a second threshold. The congestion management module may identify the congested queue as a congestion root by determining that the congested queue is not affected by a flow-control signal. A queue buffer temporarily stores data packets associated with the queue.

Abstract translation: 用于在网络的节点处执行拥塞检测和管理的设备可以包括拥塞管理模块，用于监视与队列相关联的数据分组的到达和离开速率，队列大小或队列大小的变化率。 拥塞管理模块可以通过确定与队列相关联的数据分组的到达速率大于与队列相关联的数据分组的离开率来确定队列为拥塞队列，队列大小大于 第一阈值或队列大小的变化率大于第二阈值。 拥塞管理模块可以通过确定拥塞队列不受流量控制信号的影响来将拥塞队列识别为拥塞根。 队列缓冲区临时存储与队列相关联的数据包。