公开(公告)号：US09160604B2

公开(公告)日：2015-10-13

申请号：US13797439

申请日：2013-03-12

Applicant: Cisco Technology, Inc.

Inventor： Simon Luigi Sabato ,  Hugh Barrass

IPC: H04L29/06 ,  H04L7/04 ,  H04L25/14

CPC classification number: H04L29/0653 ,  H04L7/04 ,  H04L25/14

Abstract: Methods and systems to explicitly realign packets are described. The system includes a first communications device that receives a first stream of bytes comprising a first packet and generates realignment information for the first packet based on an alignment restriction. The first communications device further transmits a second stream of bytes over the data path comprising the first packet and the realignment information. The transmitting of the first byte of the first packet over the data path being in accordance with the alignment restriction that is associated with an interface. The realignment information identifies a difference between a time that the first byte of the first packet would have been transmitted by the first communications device without the alignment restriction and a time of transmission of the first byte of the first packet by the first communications device in accordance with the alignment restriction.

Abstract translation: 描述了明确重新调整数据包的方法和系统。 该系统包括第一通信设备，其接收包括第一分组的第一字节流，并且基于对准限制产生第一分组的重新排列信息。 第一通信设备还通过包括第一分组和重新排列信息的数据路径发送第二字节流。 数据路径上的第一个数据包的第一个字节按照与接口关联的对齐限制进行传输。 重新排列信息识别第一分组的第一字节将被第一通信设备发送的时间与第一通信设备的对准限制的时间和第一通信设备的第一分组的第一个字节的传输时间之间的差异 具有对准限制。

公开(公告)号：US09705812B2

公开(公告)日：2017-07-11

申请号：US14857100

申请日：2015-09-17

Applicant: Cisco Technology, Inc.

Inventor： Simon Luigi Sabato ,  Hiroshi Suzuki

IPC: H04L12/873 ,  H04L12/863 ,  H04L12/867 ,  H04L12/801 ,  H04L12/26

CPC classification number: H04L47/52 ,  H04L43/0882 ,  H04L47/12 ,  H04L47/621 ,  H04L47/6265 ,  H04L47/629

Abstract: Methods, apparatuses, and computer-readable medium for providing a fairness protocol in a network element are disclosed herein. An example method includes receiving one or more packets at each of a plurality of ingress ports of the network element, and scheduling the packets into a plurality of queues, wherein each of the queues is associated with packets that are sourced from one of the ingress ports. The method also includes monitoring a bandwidth of traffic sourced from each of the ingress ports, identifying a port among the ingress ports that sources a smallest bandwidth of traffic, and arbitrating among the queues when transmitting packets from an egress port of the network element by giving precedence to the identified port that sources the smallest bandwidth of traffic. Additionally, arbitrating among the queues distributes a bandwidth of the egress port equally among the ingress ports.

公开(公告)号：US20140204749A1

公开(公告)日：2014-07-24

申请号：US13748963

申请日：2013-01-24

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Simon Luigi Sabato ,  Hiroshi Suzuki

IPC: H04L12/56

CPC classification number: H04L47/52 ,  H04L43/0882 ,  H04L47/12 ,  H04L47/621 ,  H04L47/6265 ,  H04L47/629

Abstract: Methods and apparatuses for providing a fairness protocol in a network element are disclosed herein. In accordance with the disclosed fairness protocol, the average bandwidth of traffic sourced from each of a plurality of ingress ports is monitored. The largest bandwidth of traffic sourced from a port within a first group of ingress ports (e.g., ingress ports of a network element) is identified and compared to the largest bandwidth of traffic sourced from a port within a second group of ingress ports (e.g., ingress ports of one or more network elements communicatively connected to the network element). In order to fairly allocate bandwidth when transmitting traffic that is sourced from the first and second groups, precedence is given to traffic flowing from the group associated with the identified port sourcing the lower bandwidth of traffic.

Abstract translation: 本文公开了在网元中提供公平协议的方法和装置。 根据所公开的公平协议，监视来自多个入口端口中的每一个的流量的平均带宽。 识别来自第一组入口端口（例如，网元的入口端口）中的端口的流量的最大带宽，并与来自第二组入口端口内的端口的流量的最大带宽进行比较（例如， 通信地连接到网络元件的一个或多个网络元件的入口端口）。 为了在传输来自第一和第二组的流量时公平地分配带宽，优先考虑从与所识别的端口相关联的组中流动的流量，源于较低的流量带宽。

公开(公告)号：US09154438B2

公开(公告)日：2015-10-06

申请号：US13748963

申请日：2013-01-24

Applicant: Cisco Technology, Inc.

Inventor： Simon Luigi Sabato ,  Hiroshi Suzuki

IPC: H04L12/863 ,  H04L12/867

CPC classification number: H04L47/52 ,  H04L43/0882 ,  H04L47/12 ,  H04L47/621 ,  H04L47/6265 ,  H04L47/629

Abstract: Methods and apparatuses for providing a fairness protocol in a network element are disclosed herein. In accordance with the disclosed fairness protocol, the average bandwidth of traffic sourced from each of a plurality of ingress ports is monitored. The largest bandwidth of traffic sourced from a port within a first group of ingress ports (e.g., ingress ports of a network element) is identified and compared to the largest bandwidth of traffic sourced from a port within a second group of ingress ports (e.g., ingress ports of one or more network elements communicatively connected to the network element). In order to fairly allocate bandwidth when transmitting traffic that is sourced from the first and second groups, precedence is given to traffic flowing from the group associated with the identified port sourcing the lower bandwidth of traffic.

Abstract translation: 本文公开了在网元中提供公平协议的方法和装置。 根据所公开的公平协议，监视来自多个入口端口中的每一个的流量的平均带宽。 识别来自第一组入口端口（例如，网元的入口端口）中的端口的流量的最大带宽，并与来自第二组入口端口内的端口的流量的最大带宽进行比较（例如， 通信地连接到网络元件的一个或多个网络元件的入口端口）。 为了在传输来自第一和第二组的流量时公平地分配带宽，优先考虑从与所识别的端口相关联的组中流动的流量，源于较低的流量带宽。

公开(公告)号：US20160006664A1

公开(公告)日：2016-01-07

申请号：US14857100

申请日：2015-09-17

Applicant: Cisco Technology, Inc.

Inventor： Simon Luigi Sabato ,  Hiroshi Suzuki

IPC: H04L12/873 ,  H04L12/801 ,  H04L12/26

CPC classification number: H04L47/52 ,  H04L43/0882 ,  H04L47/12 ,  H04L47/621 ,  H04L47/6265 ,  H04L47/629

Abstract: Methods, apparatuses, and computer-readable medium for providing a fairness protocol in a network element are disclosed herein. An example method includes receiving one or more packets at each of a plurality of ingress ports of the network element, and scheduling the packets into a plurality of queues, wherein each of the queues is associated with packets that are sourced from one of the ingress ports. The method also includes monitoring a bandwidth of traffic sourced from each of the ingress ports, identifying a port among the ingress ports that sources a smallest bandwidth of traffic, and arbitrating among the queues when transmitting packets from an egress port of the network element by giving precedence to the identified port that sources the smallest bandwidth of traffic. Additionally, arbitrating among the queues distributes a bandwidth of the egress port equally among the ingress ports.

Abstract translation: 本文公开了用于在网络元件中提供公平协议的方法，装置和计算机可读介质。 一种示例性方法包括在网元的多个入口端口的每一个端口处接收一个或多个分组，并且将分组调度为多个队列，其中每个队列与从入口端口之一提供的分组相关联 。 该方法还包括监控来自每个入口端口的流量的带宽，识别源端口中的端口，源端口的最小带宽，以及在从网元的出口端口发送报文时通过给出 被识别的端口优先于源流量的最小带宽。 此外，队列之间的仲裁在入口端口之间平均分配出口端口的带宽。