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    • 2. 发明授权
    • Adaptive network router
    • 自适应网络路由器
    • US07251215B1
    • 2007-07-31
    • US10228132
    • 2002-08-26
    • Stephen W TurnerHsien-Chung WooSanjay KalraTruman JoeWendy R Cartee
    • Stephen W TurnerHsien-Chung WooSanjay KalraTruman JoeWendy R Cartee
    • H04L1/00G06F11/00
    • H04L12/4633H04L45/00H04L45/38H04L63/1416H04L63/1458
    • A network router includes a set of interface cards to receive packets from a network, and a set of accounting modules to calculate flow statistics for the packets. The router further includes a control unit to adaptively update routing information in response to the calculated flow statistics, and to route the packets in accordance with the routing information. The control unit identifies potentially malicious packet flows for the received packets based on the flow statistics, and applies an intercept filter to intercept the packets of the identified packet flows. The control unit analyzes the intercepted packets in real-time to determine the presence of a network event, and updates the routing information based on the determination, e.g., by terminating routing for packets associated with malicious packet flows. In this manner, the router may adaptively respond to network events, such as network security violations.
    • 网络路由器包括一组用于从网络接收分组的接口卡,以及一组用于计算分组的流统计的计费模块。 路由器还包括控制单元,用于响应于所计算的流量统计自适应地更新路由信息,并且根据路由信息来路由分组。 控制单元基于流统计识别接收到的分组的潜在恶意分组流,并应用截取过滤器来截取所识别的分组流的分组。 控制单元实时地分析所拦截的分组以确定网络事件的存在,并且例如通过终止与恶意分组流相关联的分组的路由,基于确定来更新路由信息。 以这种方式,路由器可以自适应地响应诸如网络安全违规的网络事件。
    • 3. 发明授权
    • Network device having accounting service card
    • 具有会计服务卡的网络设备
    • US07313100B1
    • 2007-12-25
    • US10228150
    • 2002-08-26
    • Stephen W TurnerHsien-Chung WooSanjay KalraTruman JoeWendy R Cartee
    • Stephen W TurnerHsien-Chung WooSanjay KalraTruman JoeWendy R Cartee
    • H04L12/26
    • H04L63/1458H04L43/026H04L43/08H04L63/164
    • A network device integrates accounting functionality for generation of flow statistics with packet intercept functionality to provide a comprehensive traffic analysis environment. The device comprises a set of network interface cards to receive packets from a network, and a set of accounting service cards to calculate flow statistics for the packets. The device further comprises a control unit to receive the network packets from the interface cards and distribute the packets to the set of accounting service cards. The accounting service card comprises an interface for insertion within a slot of a network device. Accounting service cards may be added to easily scale the network device to support higher bandwidth communication links, such as OC-3, OC-12, OC048 and higher rate links. Additional accounting service cards may be used for purposes of redundancy to support continuous, uninterrupted packet processing and accounting in the event of a card failure.
    • 网络设备集成了用于生成流统计的计费功能和分组拦截功能,以提供全面的流量分析环境。 该设备包括一组网络接口卡,用于从网络接收分组,以及一组计费服务卡,用于计算分组的流统计。 该设备还包括控制单元,用于从接口卡接收网络分组,并将分组分发到一组会计服务卡。 计费服务卡包括用于插入网络设备的时隙内的接口。 可以添加会计服务卡以容易地扩展网络设备,以支持更高带宽的通信链路,例如OC-3,OC-12,OC048和更高的速率链路。 额外的会计服务卡可用于冗余的目的,以便在发生卡故障的情况下支持连续的,不间断的数据包处理和计费。
    • 5. 发明授权
    • Adaptive network router
    • 自适应网络路由器
    • US07869352B1
    • 2011-01-11
    • US12364912
    • 2009-02-03
    • Stephen W. TurnerHsien-Chung WooSanjay KalraTruman JoeWendy R. Cartee
    • Stephen W. TurnerHsien-Chung WooSanjay KalraTruman JoeWendy R. Cartee
    • G06F11/00H04J3/14H04L1/00
    • H04L12/4633H04L45/00H04L45/38H04L63/1416H04L63/1458
    • A network router includes a set of interface cards to receive packets from a network, and a set of accounting modules to calculate flow statistics for the packets. The router further includes a control unit to adaptively update routing information in response to the calculated flow statistics, and to route the packets in accordance with the routing information. The control unit identifies potentially malicious packet flows for the received packets based on the flow statistics, and applies an intercept filter to intercept the packets of the identified packet flows. The control unit analyzes the intercepted packets in real-time to determine the presence of a network event, and updates the routing information based on the determination, e.g., by terminating routing for packets associated with malicious packet flows. In this manner, the router may adaptively respond to network events, such as network security violations.
    • 网络路由器包括一组用于从网络接收分组的接口卡,以及一组用于计算分组的流统计的计费模块。 路由器还包括控制单元,用于响应于所计算的流量统计自适应地更新路由信息,并且根据路由信息来路由分组。 控制单元基于流统计识别接收到的分组的潜在恶意分组流,并应用截取过滤器来截取所识别的分组流的分组。 控制单元实时地分析所拦截的分组以确定网络事件的存在,并且例如通过终止与恶意分组流相关联的分组的路由,基于确定来更新路由信息。 以这种方式,路由器可以自适应地响应诸如网络安全违规的网络事件。
    • 6. 发明授权
    • Adaptive network router
    • 自适应网络路由器
    • US07492713B1
    • 2009-02-17
    • US11744982
    • 2007-05-07
    • Stephen W. TurnerHsien-Chung WooSanjay KalraTruman JoeWendy R. Cartee
    • Stephen W. TurnerHsien-Chung WooSanjay KalraTruman JoeWendy R. Cartee
    • H04L1/00G06F11/00
    • H04L12/4633H04L45/00H04L45/38H04L63/1416H04L63/1458
    • A network router includes a set of interface cards to receive packets from a network, and a set of accounting modules to calculate flow statistics for the packets. The router further includes a control unit to adaptively update routing information in response to the calculated flow statistics, and to route the packets in accordance with the routing information. The control unit identifies potentially malicious packet flows for the received packets based on the flow statistics, and applies an intercept filter to intercept the packets of the identified packet flows. The control unit analyzes the intercepted packets in real-time to determine the presence of a network event, and updates the routing information based on the determination, e.g., by terminating routing for packets associated with malicious packet flows. In this manner, the router may adaptively respond to network events, such as network security violations.
    • 网络路由器包括一组用于从网络接收分组的接口卡,以及一组用于计算分组的流统计的计费模块。 路由器还包括控制单元,用于响应于所计算的流量统计自适应地更新路由信息,并且根据路由信息来路由分组。 控制单元基于流统计识别接收到的分组的潜在恶意分组流,并应用截取过滤器来截取所识别的分组流的分组。 控制单元实时地分析所拦截的分组以确定网络事件的存在,并且例如通过终止与恶意分组流相关联的分组的路由,基于确定来更新路由信息。 以这种方式,路由器可以自适应地响应诸如网络安全违规的网络事件。
    • 7. 发明授权
    • Network device having accounting service card
    • 具有会计服务卡的网络设备
    • US07738396B1
    • 2010-06-15
    • US11951530
    • 2007-12-06
    • Stephen W. TurnerHsien-Chung WooSanjay KalraTruman JoeWendy R. Cartee
    • Stephen W. TurnerHsien-Chung WooSanjay KalraTruman JoeWendy R. Cartee
    • H04L12/26
    • H04L63/1458H04L43/026H04L43/08H04L63/164
    • A network device integrates accounting functionality for generation of flow statistics with packet intercept functionality to provide a comprehensive traffic analysis environment. The device comprises a set of network interface cards to receive packets from a network, and a set of accounting service cards to calculate flow statistics for the packets. The device further comprises a control unit to receive the network packets from the interface cards and distribute the packets to the set of accounting service cards. The accounting service card comprises an interface for insertion within a slot of a network device. Accounting service cards may be added to easily scale the network device to support higher bandwidth communication links, such as OC-3, OC-12, OC048 and higher rate links. Additional accounting service cards may be used for purposes of redundancy to support continuous, uninterrupted packet processing and accounting in the event of a card failure.
    • 网络设备集成了用于生成流统计的计费功能和分组拦截功能,以提供全面的流量分析环境。 该设备包括一组网络接口卡,用于从网络接收分组,以及一组计费服务卡,用于计算分组的流统计。 该设备还包括控制单元,用于从接口卡接收网络分组,并将分组分发到一组会计服务卡。 计费服务卡包括用于插入网络设备的时隙内的接口。 可以添加会计服务卡以容易地扩展网络设备,以支持更高带宽的通信链路,例如OC-3,OC-12,OC048和更高的速率链路。 额外的会计服务卡可用于冗余的目的,以便在发生卡故障的情况下支持连续的,不间断的数据包处理和计费。