公开(公告)号：US10171328B2

公开(公告)日：2019-01-01

申请号：US14304676

申请日：2014-06-13

Applicant: Cisco Technology, Inc.

Inventor： Davide Bergamasco ,  Andrea Baldini ,  Valentina Alaria ,  Flavio Bonomi ,  Rong Pan

IPC: H04L12/825 ,  H04L12/26 ,  H04L12/801 ,  H04L12/835

Abstract: The present invention provides improved methods and devices for managing network congestion. Preferred implementations of the invention allow congestion to be pushed from congestion points in the core of a network to reaction points, which may be edge devices, host devices or components thereof. Preferably, rate limiters shape individual flows of the reaction points that are causing congestion. Parameters of these rate limiters are preferably tuned based on feedback from congestion points, e.g., in the form of backward congestion notification (“BCN”) messages. In some implementations, such BCN messages include congestion change information and at least one instantaneous measure of congestion. The instantaneous measure(s) of congestion may be relative to a threshold of a particular queue and/or relative to a threshold of a buffer that includes a plurality of queues.

公开(公告)号：US20140347997A1

公开(公告)日：2014-11-27

申请号：US14292902

申请日：2014-05-31

Applicant: Cisco Technology, Inc.

Inventor： Davide Bergamasco ,  Dinesh Dutt

IPC: H04L12/801

CPC classification number: H04L47/11 ,  H04L47/10 ,  H04L47/17 ,  H04L47/263 ,  H04L47/33

Abstract: In one embodiment, an apparatus comprises a network interface system having at least one input port configured for receiving frames and a logic system comprising at least one logic device. The logic system may be configured to perform the following functions: determining a source address and a destination address of a frame received at an ingress port; calculating a flow hash based at least upon the source address and the destination address; forming a congestion management (“CM”) tag that includes the flow hash; inserting the CM tag in the frame; and forwarding the frame to the destination address.

Abstract translation: 在一个实施例中，一种装置包括具有配置用于接收帧的至少一个输入端口和包括至少一个逻辑设备的逻辑系统的网络接口系统。 逻辑系统可以被配置为执行以下功能：确定在入口处接收到的帧的源地址和目的地地址; 至少基于源地址和目的地地址来计算流哈希; 形成包括流哈希的拥塞管理（“CM”）标签; 将CM标签插入框架中; 并将帧转发到目的地址。