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    • 2. 发明申请
    • RECORDING, ANALYZING, AND RESTORING NETWORK STATES IN SOFTWARE-DEFINED NETWORKS
    • 在软件定义的网络中记录,分析和恢复网络状态
    • US20150326425A1
    • 2015-11-12
    • US14275593
    • 2014-05-12
    • NTT INNOVATION INSTITUTE, INC.
    • Sriram NatarajanEric Chen
    • H04L12/24
    • H04L41/0672H04L41/0654
    • A system that includes a recorder that records information of a flow table of at least one network device in a network by capturing information regarding the flow table that is transmitted to and from the network device, wherein the network device receives and forwards incoming packet data over the network, and the flow table is used to determine how each incoming packet is handled by the network device; an analyzer that analyzes state changes in the network and manages a network state; and a restorer that, when a type of failure occurs in the network, recovers the network state by restoring at least a portion of the flow table using the recorded information of the flow table and based on the type of failure event that has occurred.
    • 一种系统,其特征在于,具备记录在网络中的至少一个网络装置的流表的信息的记录装置,通过捕获与所述网络装置的传送有关的流表的信息,所述网络装置接收并转发输入的分组数据 网络和流表用于确定每个传入分组如何由网络设备处理; 分析器,分析网络中的状态变化并管理网络状态; 以及恢复器,当所述网络中发生故障时,通过使用所述流表的所记录的信息并且基于所发生的故障事件的类型来恢复所述流表的至少一部分来恢复所述网络状态。
    • 3. 发明申请
    • PROTECTING AND TRACKING NETWORK STATE UPDATES IN SOFTWARE-DEFINED NETWORKS FROM SIDE-CHANNEL ACCESS
    • 软件定义网络中的网络状态保护和跟踪状态从侧面通道访问
    • US20150295852A1
    • 2015-10-15
    • US14253513
    • 2014-04-15
    • NTT INNOVATION INSTITUTE, INC.
    • Sriram Natarajan
    • H04L12/927
    • H04L47/80H04L45/64
    • A system and method of access control and tracking capabilities of programmable switches are described. A system and associated method include an access controller component and a tracker component. The access controller component defines access control rights for a user in a flow of a programmable switch in a network. The access control rights are determined by access control table information and an associated bit-array based flow-level role data structure built by a controller network operator. The tracker component authorizes and permits the user to modify the flow according to a flow modification request, which is based upon information in the access control table information and the associated bit-array based flow-level role data structure for the user. A notification component of a programmable switch notifies the controller of the network about the modification request to the flow.
    • 描述了可编程开关的访问控制和跟踪能力的系统和方法。 系统和相关联的方法包括访问控制器组件和跟踪器组件。 访问控制器组件在网络中的可编程交换机的流程中定义用户的访问控制权限。 访问控制权限由访问控制表信息和由控制器网络运营商构建的基于位阵列的流级角色数据结构确定。 跟踪器组件授权并允许用户根据流修改请求来修改流程,该流程修改请求基于访问控制表信息中的信息以及用于用户的基于位阵列的流级角色数据结构。 可编程开关的通知部件向网络的控制器通知关于该流程的修改请求。