公开(公告)号：US09106546B1

公开(公告)日：2015-08-11

申请号：US13559109

申请日：2012-07-26

申请人： Ashish Naik ,  Junlan Zhou ,  Philip Michael Wells

发明人： Ashish Naik ,  Junlan Zhou ,  Philip Michael Wells

IPC分类号： H04L12/801

CPC分类号： H04L47/10 ,  H04L12/4645 ,  H04L47/11 ,  H04L47/17 ,  H04L47/26

摘要： A method and apparatus are provided for communicating congestions that area detected in a communications network. According to the method and apparatus, a first Ethernet frame encapsulating a first PDU is transmitted across an Ethernet network. Congestion in the network is then detected, and an indication of the congestion is inserted in a predetermined header field of the first Ethernet frame. Once the first Ethernet frame is received by an endpoint in the network, the indication of congestion is transferred into a second PDU that is associated with the first PDU. The second PDU is then encapsulated in a second Ethernet frame and transmitted towards the sender of the first PDU.

摘要翻译： 提供了一种用于传送在通信网络中检测到的区域的拥塞的方法和装置。 根据该方法和装置，封装第一PDU的第一以太网帧通过以太网发送。 然后检测网络中的拥塞，并且在第一以太网帧的预定报头字段中插入拥塞的指示。 一旦网络中的端点接收到第一个以太网帧，则拥塞的指示被传送到与第一PDU相关联的第二PDU中。 然后将第二PDU封装在第二以太网帧中，并向第一PDU的发送方发送。

公开(公告)号：US09450775B1

公开(公告)日：2016-09-20

申请号：US13552914

申请日：2012-07-19

申请人： Peter Michael Klausler ,  Philip Michael Wells

发明人： Peter Michael Klausler ,  Philip Michael Wells

IPC分类号： H04L12/28 ,  H04L12/26

CPC分类号： H04L12/26 ,  H04L45/04 ,  H04L45/22 ,  H04L45/58

摘要： A network may be configured to route traffic in such a way as to avoid packet loss in an event of link failure. The network may include a plurality of inner switches and a plurality of outer switches coupled to the plurality of inner switches. Each inner switch may be configured to receive traffic, determine whether a link to a next hop for the traffic is down, and forward the traffic to another outer switch if the link to the next hop is down. Each outer switch may be configured to bounce traffic received from the first inner switch to a second inner switch if the traffic is received as a result of determining that the link from the inner switch to the next hop is down. The second inner switch may then deliver the traffic, or further bounce the traffic off another outer switch.

摘要翻译： 网络可以被配置为以在链路故障的情况下避免分组丢失的方式来路由业务。 网络可以包括多个内部开关和耦合到多个内部开关的多个外部开关。 每个内部交换机可以被配置为接收流量，确定到流量的下一跳的链路是否关闭，并且如果到下一跳的链路断开，则将流量转发到另一个外部交换机。 每个外部交换机可以被配置为如果通过确定从内部交换机到下一跳的链路关闭而接收到业务，则将从第一内部交换机接收的业务反弹到第二内部交换机。 然后，第二内部交换机可以传送业务，或进一步使业务从另一外部交换机反弹。

公开(公告)号：US08792787B1

公开(公告)日：2014-07-29

申请号：US13552774

申请日：2012-07-19

申请人： Xiaoxue Zhao ,  Bikash Koley ,  Vijay Vusirikala ,  Edward Crabbe ,  Paul Phillip Germano ,  Hong Liu ,  Philip Michael Wells

发明人： Xiaoxue Zhao ,  Bikash Koley ,  Vijay Vusirikala ,  Edward Crabbe ,  Paul Phillip Germano ,  Hong Liu ,  Philip Michael Wells

IPC分类号： H04J14/00

CPC分类号： H04Q11/0005 ,  H04B10/2575 ,  H04Q2011/0013 ,  H04Q2011/0032 ,  H04Q2011/0039 ,  H04Q2011/006

摘要： A packet switch/router including a first stage switch fabric receiving an electrical signal, a mid-stage buffer receiving and storing the electrical signal from the first stage switch fabric, and a second stage switch fabric receiving the electrical signal from the mid-stage buffer. Each switch fabric includes N layers of N×N arrayed waveguide gratings (AWGs), and each AWG has ingress ports and egress ports. A wavelength tunable device, such as a tunable laser, communicates with a source ingress port of an AWG and converts the received electrical signal to an optical signal having a wavelength selected for routing a packet from the source ingress port to a target egress port of the arrayed waveguide grating. A photoreceiver, such as a burst-mode photoreceiver, receives the propagated optical signal from the target egress port and converts the optical signal to the electrical signal.

摘要翻译： 包括接收电信号的第一级交换结构的分组交换机/路由器，接收并存储来自第一级交换结构的电信号的中间缓冲器以及从中间级缓冲器接收电信号的第二级交换机结构 。 每个交换结构包括N层N×N阵列波导光栅（AWG），每个AWG具有入口端口和出口端口。 诸如可调激光器的波长可调设备与AWG的源入口端口进行通信，并将接收到的电信号转换为具有选择的波长的光信号，以将数据包从源入口端口路由到目标出口端口 阵列波导光栅。 诸如突发模式光接收器的光接收器从目标出口接收传播的光信号，并将光信号转换为电信号。