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    • 2. 发明申请
    • Techniques for network traffic engineering
    • 网络流量工程技术
    • US20050008014A1
    • 2005-01-13
    • US10614738
    • 2003-07-07
    • Debasis MitraIraj SanieeAnwar WalidIndra Widjaja
    • Debasis MitraIraj SanieeAnwar WalidIndra Widjaja
    • H04L12/28H04L12/56
    • H04L45/00H04L45/124
    • In a traffic engineering technique, a determination is made as to whether any path of a number of predetermined paths meets requirements corresponding to a request. The predetermined paths are determined by substantially maximizing carried demand using at least traffic demand estimates and network topology information and by performing routing for the substantially maximized carried demand. If a given path meeting the requirements is found, a connection on the given path is created, if possible. The predetermined paths are determined through offline TE techniques referred to herein as offline design-based routing (DBR). The requirements for the path may include a destination address and a bandwidth. The offline DBR techniques can include uncertain static demand information or dynamic connections. The offline DBR techniques may be used with adaptive DBR techniques, such that paths are determined offline if possible but can also use shortest path first (SPF), constrained SPF (CSPF) or other techniques during an online path determination. An improvement to a conventional CSPF technique is also presented.
    • 在交通工程技术中,确定多个预定路径的任何路径是否满足与请求相对应的要求。 通过使用至少业务需求估计和网络拓扑信息并且通过执行基本上最大化的携带需求的路由,基本上最大化承载需求来确定预定路径。 如果找到满足要求的给定路径,则可以创建给定路径上的连接。 通过本文中称为基于离线设计的路由(DBR)的离线TE技术确定预定路径。 路径的要求可以包括目的地址和带宽。 离线DBR技术可以包括不确定的静态需求信息或动态连接。 离线DBR技术可以与自适应DBR技术一起使用,使得如果可能的话,路径被确定离线,但是在线路径确定期间也可以使用最短路径优先(SPF),约束SPF(CSPF)或其他技术。 还提出了对常规CSPF技术的改进。
    • 10. 发明授权
    • Flow control and congestion management for random scheduling in time-domain wavelength interleaved networks
    • 用于时域波长交织网络中随机调度的流量控制和拥塞管理
    • US07573815B2
    • 2009-08-11
    • US11072163
    • 2005-03-04
    • Andrew BrzezinskiIraj SanieeIndra Widjaja
    • Andrew BrzezinskiIraj SanieeIndra Widjaja
    • H04L12/26
    • H04L47/10H04L47/263H04Q11/0066H04Q2011/0033H04Q2011/0064H04Q2011/0086
    • Flow control techniques are disclosed for use in data communications networks such as those implementing a time-domain wavelength interleaved network (TWIN) architecture or other suitable architectures. Such techniques may provide for congestion management and scheduling for asynchronous traffic. For example, in one aspect, a technique comprises collecting information at a node of an optical-based communications network, wherein at least a portion of the collected information pertains to congestion in the optical-based communications network, and adjusting a transmission rate of the node in response to at least a portion of the collected information such that the node operates under a substantially stable transmission schedule with respect to asynchronous data bursts. The transmission rate adjusting step/operation may further comprise adjusting the transmission rate such that the node operates under a substantially fair transmission schedule. The node may operate under a random transmission schedule.
    • 公开了用于数据通信网络中的流控制技术,例如实现时域波长交织网络(TWIN)架构或其他合适架构的流量控制技术。 这样的技术可以提供用于异步业务的拥塞管理和调度。 例如,在一个方面,一种技术包括在基于光学的通信网络的节点处收集信息,其中所收集的信息的至少一部分涉及基于光学的通信网络中的拥塞,并且调整所述光通信网络的传输速率 响应于所收集的信息的至少一部分,使得节点在相对于异步数据突发的基本上稳定的传输调度下操作。 传输速率调整步骤/操作可以进一步包括调整传输速率,使得节点在基本公平的传输调度下运行。 节点可以在随机传输调度下操作。