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    • 62. 发明申请
    • Power Save Mode for Lightpaths
    • 光路节能模式
    • US20140248051A1
    • 2014-09-04
    • US14275445
    • 2014-05-12
    • Ornan GerstelFlavio BonomiDavid Ward
    • Ornan GerstelFlavio BonomiDavid Ward
    • H04B10/079H04L12/707H04L12/803H04L12/721
    • H04B10/0793H04B10/07955H04J14/0221H04J14/0227H04J14/0267H04J14/0284H04L45/22H04L45/245H04L45/70H04L47/10H04L47/125Y02D50/30
    • A method for communicating optically between nodes of an optical network, including forming, between a first node and a second node of the network, a set of lightpaths, each of the set of lightpaths having a respective configuration, and transferring communication traffic between the first and second nodes via the set of lightpaths. The method also includes forming a determination for the set of lightpaths that a communication traffic level associated therewith is less than a predetermined threshold, and in response to the determination, removing a lightpath having a given configuration from the set of lightpaths to form a reduced set of lightpaths. The method further includes transferring the communication traffic between the first and second nodes via the reduced set of lightpaths, while reducing a level of power consumption in the removed lightpath and while maintaining the given configuration of the removed lightpath.
    • 一种用于在光网络的节点之间进行光学通信的方法,包括在所述网络的第一节点和所述第二节点之间形成一组光路,所述一组光路中的每一个具有相应的配置,并且在所述第一 以及经由一组光路的第二节点。 该方法还包括形成对于与其相关联的通信业务量小于预定阈值的光路集合的确定,并且响应于该确定,从所述一组光路中去除具有给定配置的光路以形成缩小集合 的光线。 该方法还包括经由减少的光路集合在第一节点和第二节点之间传送通信业务,同时降低去除的光路中的功率消耗水平,同时保持去除的光路的给定配置。
    • 63. 发明授权
    • In-service configuration upgrade using virtual machine instances
    • 使用虚拟机实例进行在役配置升级
    • US08799422B1
    • 2014-08-05
    • US13247475
    • 2011-09-28
    • Hui QuJoel ObstfeldDavid WardMu LinAnjali Kulkarni
    • Hui QuJoel ObstfeldDavid WardMu LinAnjali Kulkarni
    • G06F15/177
    • G06F8/656H04L45/64H04L49/70
    • Techniques described in this disclosure relate to configuration updates, such as performing an in-service software upgrade on a device, using virtual machines. In a routing device, a routing engine utilizes a virtual machine executing on a hypervisor to provide control plane functions. In one example, an in-service software upgrade may be performed between a first virtual machine and a second virtual machine without a managing virtual machine. More specifically, a first virtual machine in the control plane of the router may control the upgrade process, including requesting initialization of the second virtual machine, installing a new software system on the second virtual machine, and replicating state data from the first virtual machine to the second virtual machine. In this example, the first virtual machine may operate as a master virtual machine and the second virtual machine may operate as a slave virtual machine that synchronizes with the master virtual machine.
    • 本公开中描述的技术涉及配置更新,诸如使用虚拟机在设备上执行在职软件升级。 在路由设备中,路由引擎利用在管理程序上执行的虚拟机来提供控制平面功能。 在一个示例中,可以在没有管理虚拟机的第一虚拟机和第二虚拟机之间执行在役软件升级。 更具体地,路由器的控制平面中的第一虚拟机可以控制升级过程,包括请求初始化第二虚拟机,在第二虚拟机上安装新的软件系统,以及将状态数据从第一虚拟机复制到 第二个虚拟机。 在该示例中,第一虚拟机可以作为主虚拟机操作,并且第二虚拟机可以作为与主虚拟机同步的从属虚拟机来操作。
    • 64. 发明授权
    • Power save mode for lightpaths
    • 光路节电模式
    • US08724990B2
    • 2014-05-13
    • US12586041
    • 2009-09-15
    • Ornan GerstelFlavio BonomiDavid Ward
    • Ornan GerstelFlavio BonomiDavid Ward
    • H04J14/00
    • H04B10/0793H04B10/07955H04J14/0221H04J14/0227H04J14/0267H04J14/0284H04L45/22H04L45/245H04L45/70H04L47/10H04L47/125Y02D50/30
    • A method for communicating optically between nodes of an optical network, including forming, between a first node and a second node of the network, a set of lightpaths, each of the set of lightpaths having a respective configuration, and transferring communication traffic between the first and second nodes via the set of lightpaths. The method also includes forming a determination for the set of lightpaths that a communication traffic level associated therewith is less than a predetermined threshold, and in response to the determination, removing a lightpath having a given configuration from the set of lightpaths to form a reduced set of lightpaths. The method further includes transferring the communication traffic between the first and second nodes via the reduced set of lightpaths, while reducing a level of power consumption in the removed lightpath and while maintaining the given configuration of the removed lightpath.
    • 一种用于在光网络的节点之间进行光学通信的方法,包括在所述网络的第一节点和所述第二节点之间形成一组光路,所述一组光路中的每一个具有相应的配置,并且在所述第一 以及经由一组光路的第二节点。 该方法还包括形成对于与其相关联的通信业务量小于预定阈值的光路集合的确定,并且响应于该确定,从所述一组光路中去除具有给定配置的光路以形成缩小集合 的光线。 该方法还包括经由减少的光路集合在第一节点和第二节点之间传送通信业务,同时降低去除的光路中的功率消耗水平,同时保持去除的光路的给定配置。
    • 68. 发明授权
    • Flooding-based routing protocol having database pruning and rate-controlled state refresh
    • 基于洪泛的路由协议具有数据库修剪和速率控制的状态刷新
    • US08351438B2
    • 2013-01-08
    • US12954128
    • 2010-11-24
    • David WardDavid M. Katz
    • David WardDavid M. Katz
    • H04L12/56
    • H04L45/02H04L45/021H04L45/028H04L45/32H04L47/39
    • An enhanced, flooding-based link state routing protocol is described that provides pruning of link state data and, when needed, rate-controlled refresh of the pruned link state data from other routers of the flooding domain. A routing device comprises a network interface to send and receive packets over a layer-two (L2) communication medium. The routing device includes a control unit coupled to the network interface, and a flooding-based link state routing protocol executing on a processor of the control unit. The link-state routing protocol establishes an adjacency with a peer router. A database of the routing device includes entries that store a plurality of link state messages for a flooding domain of the link state routing protocol, wherein at least one of the entries in the database stores a partial link state message having a header portion and a payload having pruned link state data.
    • 描述了一种增强的基于洪泛的链路状态路由协议,其提供链路状态数据的修剪,并且当需要时,对来自泛洪域的其他路由器的修剪的链路状态数据进行速率控制的刷新。 路由设备包括用于在二层(L2)通信介质上发送和接收分组的网络接口。 路由设备包括耦合到网络接口的控制单元和在控制单元的处理器上执行的基于洪泛的链路状态路由协议。 链路状态路由协议与对等体路由器建立邻接关系。 路由设备的数据库包括存储用于链路状态路由协议的泛洪域的多个链路状态消息的条目,其中数据库中的至少一个条目存储具有报头部分和有效载荷的部分链路状态消息 修剪了链接状态数据。