Automatic configuration of packet network services over dense wavelength division multiplex communication links using optical transport network frames
    1.
    发明授权
    Automatic configuration of packet network services over dense wavelength division multiplex communication links using optical transport network frames 有权
    通过使用光传输网络帧的密集波分复用通信链路自动配置分组网络服务

    公开(公告)号:US08830989B2

    公开(公告)日:2014-09-09

    申请号:US13311615

    申请日:2011-12-06

    IPC分类号: H04L12/66

    摘要: Techniques are provided to automatically configure packet based network services over Dense Wavelength Division Multiplex (DWDM) network communication links. An optical wavelength is detected at an optical interface of a network device configured to send traffic between a packet switched network and an optical network. A message is sent to an optical control plane comprising information configured to request optical configuration information for the optical wavelength. A response to the message is received comprising the optical configuration information and the wavelength is activated at the optical interface using the optical configuration information. A frame is received over the wavelength that is formatted according to an optical protocol. Packet switched network information is extracting from an overhead portion of the frame that is configured to identify network parameters for configuring a packet switched network link and the associated routing. The packet switched network link is configured using the network parameters.

    摘要翻译: 提供了通过密集波分复用(DWDM)网络通信链路来自动配置基于分组的网络服务的技术。 在被配置为在分组交换网络和光网络之间发送业务的网络设备的光接口处检测到光波长。 信息被发送到光学控制平面,包括被配置为请求光学波长的光学配置信息的信息。 接收到包含光学配置信息的消息的响应,并且使用光学配置信息在光学接口处激活波长。 在根据光学协议格式化的波长上接收帧。 分组交换网络信息是从帧的开销部分提取的,其被配置为识别用于配置分组交换网络链路和相关联的路由的网络参数。 分组交换网络链路使用网络参数进行配置。

    Client diversity policy sharing with the transport layer
    2.
    发明授权
    Client diversity policy sharing with the transport layer 有权
    客户端多样性政策与传输层共享

    公开(公告)号:US08743679B2

    公开(公告)日:2014-06-03

    申请号:US13036206

    申请日:2011-02-28

    IPC分类号: G01R31/08

    CPC分类号: H04L45/02 H04L45/04 H04L45/62

    摘要: Diversity constraints with respect to connections or links in a client layer are conveyed to a server layer where those links or connections are served by paths in the server layer. A network device in the server layer stores data associated paths in the server layer with identifiers for connections in the client layer. The network device in the server layer receives from a network device in the client layer a request to set up a path in the server layer for a connection in the client layer. The network device in the server layer receives information describing the diversity requirements associated with connections in the client layer. The server layer network device computes a route in the server layer for the connection specified in the request based on the diversity requirements.

    摘要翻译: 关于客户层中的连接或链路的分集约束被传送到服务器层,其中这些链接或连接由服务器层中的路径服务。 服务器层中的网络设备在服务器层中存储与客户层中连接的标识符相关的路径。 服务器层中的网络设备从客户层中的网络设备接收在客户端层中为连接建立服务器层中的路径的请求。 服务器层中的网络设备接收描述与客户层中的连接相关联的分集要求的信息。 服务器层网络设备根据分集要求,计算服务器层中针对请求中指定的连接的路由。

    Light Path Priority in Dense Wavelength Division Multiplexed Networks
    3.
    发明申请
    Light Path Priority in Dense Wavelength Division Multiplexed Networks 有权
    密集波分复用网络中的光路优先级

    公开(公告)号:US20120308231A1

    公开(公告)日:2012-12-06

    申请号:US13150333

    申请日:2011-06-01

    IPC分类号: H04J14/00

    CPC分类号: H04J14/0268 H04J14/0257

    摘要: Techniques are provided for using light path priority of service information in an optical network. At a node in the optical network, priority of service information is stored for a plurality of light paths used in the optical network. The node serves traffic in the optical network using the plurality of light paths based on the priority of service information. These techniques provide for prioritizing light paths (wavelengths) for scenarios such as restoration, congestion and resource contention.

    摘要翻译: 提供了在光网络中使用服务信息的光路优先级的技术。 在光网络中的节点处,针对在光网络中使用的多个光路存储服务信息的优先级。 基于服务信息的优先级,该节点使用多个光路径为光网络中的业务提供服务。 这些技术提供了针对诸如恢复,拥塞和资源争用等场景的光路(波长)的优先级。

    Optical add/drop multiplexer with reconfigurable add wavelength selective switch
    4.
    发明授权
    Optical add/drop multiplexer with reconfigurable add wavelength selective switch 有权
    具有可重新配置的波长选择开关的光分插复用器

    公开(公告)号:US07634196B2

    公开(公告)日:2009-12-15

    申请号:US10959366

    申请日:2004-10-06

    IPC分类号: H04J14/02

    摘要: A reconfigurable WDM add/drop multiplexer and its method of operation at an add/drop node on an optical fiber carrying a plurality of WDM signals is described. The WDM add/drop multiplexer has a coupler and a demultiplexer element dropping WDM signals from the optical fiber to a plurality of drop terminals, and a wavelength-selective switch adding WDM signals from a plurality of add terminals onto the optical fiber. The coupler splits the WDM signals received from the optical fiber and passes the split WDM signals to the first and second output terminals. The demultiplexer element separates the split WDM signals at the plurality of drop terminals. The wavelength-selective switch, which has an input terminal for connection to the second coupler output terminal and an output terminal for connection to the optical fiber, selectively adds WDM signals on the plurality of add terminals to the optical fiber responsive to control signals.

    摘要翻译: 描述了可重配置的WDM分插复用器及其在携带多个WDM信号的光纤上的加/减节点上的操作方法。 WDM分插复用器具有耦合器和解复用器元件,其将来自光纤的WDM信号丢弃到多个液滴端子,以及波长选择开关,将来自多个添加端子的WDM信号添加到光纤上。 耦合器分离从光纤接收的WDM信号,并将分离的WDM信号传送到第一和第二输出端。 解复用器元件分离多个分接端子处的分离WDM信号。 具有用于连接到第二耦合器输出端子的输入端子和用于连接到光纤的输出端子的波长选择开关响应于控制信号选择性地将多个添加端子上的WDM信号添加到光纤。

    Method for Separation of Packet NetworkManagement Domains
    5.
    发明申请
    Method for Separation of Packet NetworkManagement Domains 有权
    分组网络管理域的分离方法

    公开(公告)号:US20080025722A1

    公开(公告)日:2008-01-31

    申请号:US11856863

    申请日:2007-09-18

    申请人: Ornan Gerstel

    发明人: Ornan Gerstel

    IPC分类号: H04J14/02

    摘要: The present invention provides a mechanism and a method for indirectly controlling a packet handling device interface from an optical management system in an packet-optical network. A mechanism is provided for controlling a packet handling device, such as a router, interface from a management system indirectly, by using optical equipment as a proxy and communicating between the optical gear and router via a peer-to-peer signaling protocol. The present invention provides a management method that allows separate management systems for the optical layer and the packet network layer and a method for managing the network across the domains.

    摘要翻译: 本发明提供了一种从分组光网络中的光学管理系统间接地控制分组处理设备接口的机制和方法。 提供了一种用于通过使用光学设备作为代理并经由对等信令协议在光学齿轮与路由器之间进行通信来间接地管理来自管理系统的分组处理设备(例如路由器)接口的机制。 本发明提供一种管理方法,其允许用于光层和分组网络层的分开的管理系统以及跨域的管理方法。

    PROCESSING OF OPTICAL PERFORMANCE DATA IN AN OPTICAL WAVELENGTH DIVISION MULTIPLEXED COMMUNICATION SYSTEM
    6.
    发明申请
    PROCESSING OF OPTICAL PERFORMANCE DATA IN AN OPTICAL WAVELENGTH DIVISION MULTIPLEXED COMMUNICATION SYSTEM 有权
    在光波段多光通信系统中处理光性能数据

    公开(公告)号:US20070253711A1

    公开(公告)日:2007-11-01

    申请号:US11747636

    申请日:2007-05-11

    IPC分类号: H04B10/08

    摘要: Optical performance measurements are taken in an optical network and displayed in a form that allows an operator to enter fault information related to the measurements, or to automatically generate fault alarms to the operator, based on processing of the measurements. The optical measurements may be individual power measurements taken for each light-path at various points in each node it traverses, such as amplifiers, multiplexers/demultiplexers or at an interface with another node.

    摘要翻译: 光学性能测量在光学网络中进行,并且以允许操作者输入与测量相关的故障信息的形式显示,或者基于测量的处理自动地向操作者生成故障报警。 光学测量可以是针对每个光通路在每个光通路中通过的各个节点进行单独的功率测量,例如放大器,多路复用器/解复用器或与另一个节点的接口。

    Measurement of optical fiber length and determination of chromatic dispersion over the optical fiber
    7.
    发明授权
    Measurement of optical fiber length and determination of chromatic dispersion over the optical fiber 有权
    光纤长度的测量和光纤色散的测定

    公开(公告)号:US07808623B2

    公开(公告)日:2010-10-05

    申请号:US11872656

    申请日:2007-10-15

    IPC分类号: G01N21/00

    摘要: In one embodiment, first optical signal can be generated at a first end of an optical fiber segment at a first time. The first optical signal can be detected at a second end of the optical fiber segment at a second time. A second optical signal can be generated at a second end of the optical fiber segment at a third time in response to the detection of the first optical signal. The second optical signal can be detected at the first end of the optical fiber segment at a fourth time. A length of the optical fiber segment can be determined based on a difference between the second time and the first time, a difference between the third time and the second time, and a difference between the fourth time and the third time.

    摘要翻译: 在一个实施例中,第一光信号可以在第一时间在光纤段的第一端产生。 可以在第二时间在光纤段的第二端检测第一光信号。 响应于第一光信号的检测,可以在第三时间在光纤段的第二端产生第二光信号。 可以在第四时间在光纤段的第一端检测第二光信号。 可以基于第二时间和第一时间之间的差异,第三时间和第二时间之间的差异以及第四时间和第三时间之间的差异来确定光纤段的长度。