公开(公告)号：US09608926B2

公开(公告)日：2017-03-28

申请号：US14473449

申请日：2014-08-29

Applicant: Cisco Technology, Inc.

Inventor： Hiroshi Suzuki ,  Surendra Anubolu ,  Andrew Michael Robbins ,  Stephen Francis Scheid

IPC: H04L12/873 ,  H04L12/863

CPC classification number: H04L47/522 ,  H04L47/623

Abstract: A method for managing recirculation path traffic in a network node comprises monitoring an input packet stream received at an input port of the network node and monitoring a recirculation packet stream at a recirculation path of the network node. A priority level associated with individual packets of the monitored input packet stream is detected and low priority packets are stored in a virtual queue. The method also includes determining an average packet length associated with packets of the monitored recirculation packet stream. The method further comprises queuing one or more of the low priority packets or the recirculation packets for transmission based on the average packet length and a weighted share schedule.

公开(公告)号：US09455933B2

公开(公告)日：2016-09-27

申请号：US14164167

申请日：2014-01-25

Applicant: Cisco Technology, Inc.

Inventor： Norman William Finn ,  Rong Pan ,  Hiroshi Suzuki ,  Linda Tin-Wen Cheng ,  Peter Geoffrey Jones ,  Hariprasada Rao Ginjpalli ,  Rudolph Benedict Klecka

IPC: H04L12/911 ,  H04L12/863 ,  H04L12/931

CPC classification number: H04L47/826 ,  H04L47/6255 ,  H04L49/00 ,  H04L49/25

Abstract: A method for allocating port assignments for transmitting a reserved network stream across a network node comprises determining a cycle time associated with a network node. The method also comprises establishing, for at least one port of the network node, a plurality of virtual layers associated with the cycle time, wherein each of the plurality of virtual layers is divided into 2n equally-spaced slots per cycle (where n>0). The method further comprises receiving a reserved stream request associated with transmission of a reserved stream across the node, and determining a number of slots required to transmit the reserved stream. The method also comprises assigning one or more slots associated with a port of the network node to the transmission of packets associated with the reserved stream based on the determined number of slots. The method further comprises transmitting the stream according to the slot assignment associated with the port of the network node.

Abstract translation: 用于分配用于通过网络节点发送保留网络流的端口分配的方法包括确定与网络节点相关联的周期时间。 所述方法还包括为所述网络节点的至少一个端口建立与所述周期时间相关联的多个虚拟层，其中所述多个虚拟层中的每一个虚拟层每个周期被划分成2n个等间隔的时隙（其中n> 0 ）。 所述方法还包括：接收与所述节点之间的保留流的传输相关联的保留流请求，以及确定发送所述预留流所需的时隙数。 该方法还包括基于所确定的时隙数量，将与网络节点的端口相关联的一个或多个时隙分配给与保留流相关联的分组的传输。 该方法还包括根据与网络节点的端口相关联的时隙分配来发送流。

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：US20150215237A1

公开(公告)日：2015-07-30

申请号：US14164167

申请日：2014-01-25

Applicant: Cisco Technology, Inc.

Inventor： Norman Finn ,  Rong Pan ,  Hiroshi Suzuki ,  Linda Cheng ,  Peter Jones ,  Hari Ginjpalli ,  Rudy Klecka

IPC: H04L12/911

CPC classification number: H04L47/826 ,  H04L47/6255 ,  H04L49/00 ,  H04L49/25

Abstract: A method for allocating port assignments for transmitting a reserved network stream across a network node comprises determining a cycle time associated with a network node. The method also comprises establishing, for at least one port of the network node, a plurality of virtual layers associated with the cycle time, wherein each of the plurality of virtual layers is divided into 2n equally-spaced slots per cycle (where n>0). The method further comprises receiving a reserved stream request associated with transmission of a reserved stream across the node, and determining a number of slots required to transmit the reserved stream. The method also comprises assigning one or more slots associated with a port of the network node to the transmission of packets associated with the reserved stream based on the determined number of slots. The method further comprises transmitting the stream according to the slot assignment associated with the port of the network node.

Abstract translation: 用于分配用于通过网络节点发送保留网络流的端口分配的方法包括确定与网络节点相关联的周期时间。 所述方法还包括为所述网络节点的至少一个端口建立与所述周期时间相关联的多个虚拟层，其中所述多个虚拟层中的每一个虚拟层每个周期被划分成2n个等间隔的时隙（其中n> 0 ）。 所述方法还包括：接收与所述节点之间的保留流的传输相关联的保留流请求，以及确定发送所述预留流所需的时隙数。 该方法还包括基于所确定的时隙数量，将与网络节点的端口相关联的一个或多个时隙分配给与保留流相关联的分组的传输。 该方法还包括根据与网络节点的端口相关联的时隙分配来发送流。