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公开(公告)号：US20140362857A1
公开(公告)日：2014-12-11
申请号：US13910179
申请日：2013-06-05
Applicant: Cisco Technology, Inc.
Inventor： James Guichard , Paul Quinn , David Ward , Surendra Kumar , Nagaraj A. Bagepalli , Michael R. Smith , Navindra Yadav
IPC: H04L12/721
CPC classification number: H04L45/566 , H04L45/306 , H04L69/22
Abstract: Presented herein are techniques useful in a network comprising a plurality of network nodes each configured to apply one or more service functions to traffic that passes through the respective network nodes. A network node receives packets encapsulated in a service header that includes information defining a variable set of context headers stacked into an association of metadata that is relevant to one or more service functions within a service path comprised of one or more network nodes. The network node interprets a forwarding state and a next-hop network node for the service path from the service header, and determines a service action or associated metadata from the set of context headers.
Abstract translation: 这里呈现的是在网络中有用的技术，其包括多个网络节点，每个网络节点被配置为将一个或多个服务功能应用于通过各个网络节点的业务。 网络节点接收封装在服务头部中的分组，该分组包括定义一组上下文标题的信息，这些信息堆叠成与由一个或多个网络节点组成的服务路径内的一个或多个服务功能相关的元数据关联。 网络节点从服务头解释用于服务路径的转发状态和下一跳网络节点，并且从上下文头集合中确定服务动作或相关联的元数据。
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公开(公告)号：US10484303B2
公开(公告)日：2019-11-19
申请号：US15689027
申请日：2017-08-29
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Gregory J. Shepherd , Ijsbrand Wijnands , Neale Ranns , David Ward , Michael Francis O'Gorman
IPC: H04L12/931 , H04L29/08 , H04L12/18 , H04L29/06 , H04L12/761
Abstract: In one embodiment, a method includes receiving from a host node comprising a tenant multicast application with a single tenant deployment, an encapsulated multicast packet over unicast at a virtual replicator, the encapsulated multicast packet comprising receiver information for the virtual replicator, replicating the encapsulated multicast packet at the virtual replicator, and transmitting the encapsulated multicast packet over unicast to a plurality of receiving nodes based on the receiver information. The receiving nodes comprise the tenant multicast application and the virtual replicator operates in a cloud without multicast capability. An apparatus is also disclosed herein.
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公开(公告)号：US09479403B2
公开(公告)日：2016-10-25
申请号：US13780253
申请日：2013-02-28
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Clarence Filsfils , David Ward , Christopher Y. Metz , Peter De Vriendt
IPC: H04L12/26 , H04L12/721 , H04L12/24
CPC classification number: H04L43/00 , H04L41/00 , H04L41/0681 , H04L43/04 , H04L43/08 , H04L43/0805 , H04L45/70
Abstract: In one embodiment, a method includes receiving at a network device, route convergence measurements and traffic demand measurements from a plurality of routers, and computing network availability based on the measurements at the network device. The route convergence measurements are associated with route computations at the routers and the traffic demand measurements include portions of a demand matrix associated with the routers. An apparatus and logic are also disclosed herein.
Abstract translation: 在一个实施例中，一种方法包括在网络设备处接收来自多个路由器的路由收敛测量和业务需求测量，以及基于网络设备处的测量来计算网络可用性。 路由收敛测量与路由器上的路由计算相关联，并且业务需求测量包括与路由器相关联的需求矩阵的部分。 本文还公开了一种装置和逻辑。
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公开(公告)号：US20150003283A1
公开(公告)日：2015-01-01
申请号：US13930081
申请日：2013-06-28
Applicant: Cisco Technology, Inc.
Inventor： Stefano Previdi , Jean-Philippe Vasseur , Jan Medved , David Ward , Clarence Filsfils , Christopher Metz
IPC: H04L12/751 , H04L12/723
Abstract: In one embodiment, a stateful computing entity in a computer network determines underlying network information (physical and/or optical) for the computer network, and also determines topologies (Internet Protocol (IP) and/or Multiprotocol Label Switching (MPLS)) for the computer network and associated resource information. Further, the stateful computing entity determines label switched path (LSP) state information for the computer network. The stateful computing entity may then build network state knowledge by aggregating the underlying network information, the topologies and associated resource information, and the LSP state information, and establishes communication within a dynamic network of other stateful computing entities sharing network state knowledge for parallel computation performance. Accordingly, the stateful computing entity may perform network computation based on the network state knowledge.
Abstract translation: 在一个实施例中，计算机网络中的状态计算实体确定用于计算机网络的底层网络信息（物理和/或光学），并且还确定用于所述计算机网络的拓扑（互联网协议（IP））和/或多协议标签交换（MPLS）） 计算机网络和相关资源信息。 此外，有状态计算实体确定计算机网络的标签交换路径（LSP）状态信息。 有状态计算实体可以通过聚合底层网络信息，拓扑和相关资源信息以及LSP状态信息来构建网络状态知识，并且在共享网络状态知识的其他有状态计算实体的动态网络内建立用于并行计算性能的通信 。 因此，有状态计算实体可以基于网络状态知识来执行网络计算。
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公开(公告)号：US11135937B2
公开(公告)日：2021-10-05
申请号：US16211406
申请日：2018-12-06
Applicant: Cisco Technology, Inc.
Inventor： David Ward , Michael John Beesley
Abstract: In some embodiments, an electric vehicle sends a vehicle charging request to a supervisory service. The electric vehicle receives, from the supervisory service in response to the vehicle charging request, a location of a telecommunication node of a telecommunication network that is configured to provide charging to electric vehicles. The electric vehicle navigates to the received location of the telecommunication node. The vehicle initiates charging of the electric vehicle at the location of the telecommunication node.
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Patent Agency Ranking
公开(公告)号：US10158561B2
公开(公告)日：2018-12-18
申请号：US14966737
申请日：2015-12-11
Applicant: Cisco Technology, Inc.
Inventor： James Guichard , Paul Quinn , David Ward , Surendra Kumar , Yavindra Yadav , Michael R. Smith , Nagaraj A. Bagepalli
IPC: H04L12/725 , H04L12/851 , H04L29/06 , H04L12/24
Abstract: Techniques are provided to decouple service chain structure from the underlying network forwarding state and allow for data plane learning of service chain forwarding requirements and any association between services function state requirements and the forward and reverse forwarding paths for a service chain. In a network comprising a plurality of network nodes each configured to apply a service function to traffic that passes through the respective network node, a packet is received at a network node. When the network node determines that the service function it applies is stateful, it updates context information in a network service header of the packet to indicate that the service function applied at the network node is stateful and that traffic for a reverse path matching the classification criteria is to be returned to the network node.
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公开(公告)号：US20180013821A1
公开(公告)日：2018-01-11
申请号：US15711235
申请日：2017-09-21
Applicant: Cisco Technology, Inc.
Inventor： Hendrikus G.P. Bosch , James Guichard , Dave Barach , Alessandro Duminuco , Luyuan Fang , Paul Quinn , Rex Fernando , David Ward
IPC: H04L29/08 , H04L12/715 , H04L12/751
Abstract: Presented herein are techniques for use in a network environment that includes one or more service zones, each service zone including at least one instance of an in-line application service to be applied to network traffic and one or more routers to direct network traffic to the at least one service, and a route target being assigned to a unique service zone to serve as a community value for route import and export between routers of other service zones, destination networks or source networks via a control protocol. An edge router in each service zone or destination network advertises routes by its destination network prefix tagged with its route target. A service chain is created by importing and exporting of destination network prefixes by way of route targets at edge routers of the service zones or source networks.
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公开(公告)号：US20180013638A1
公开(公告)日：2018-01-11
申请号：US15711625
申请日：2017-09-21
Applicant: Cisco Technology, Inc.
Inventor： James Guichard , Carlos M. Pignataro , David Ward , Paul Quinn , Surendra Kumar
IPC: H04L12/24 , H04L12/26 , H04L12/703 , H04L29/08 , H04L12/723
CPC classification number: H04L41/5009 , H04L41/0654 , H04L41/0668 , H04L41/5038 , H04L41/5077 , H04L43/0823 , H04L43/50 , H04L45/28 , H04L45/302 , H04L45/50 , H04L67/10
Abstract: Presented herein are techniques performed in a network comprising a plurality of network nodes each configured to apply one or more service functions to traffic that passes the respective network nodes in a service path. At a network node, an indication is received of a failure or degradation of one or more service functions or applications applied to traffic at the network node. Data descriptive of the failure or degradation is generated. A previous service hop network node at which a service function or application was applied to traffic in the service path is determined. The data descriptive of the failure or degradation is communicated to the previous service hop network node.
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公开(公告)号：US09826025B2
公开(公告)日：2017-11-21
申请号：US13898932
申请日：2013-05-21
Applicant: Cisco Technology, Inc.
Inventor： Hendrikus G. P. Bosch , James Guichard , Dave Barach , Alessandro Duminuco , Luyuan Fang , Paul Quinn , Rex Fernando , David Ward
IPC: H04L29/08 , H04L12/715 , H04L12/751
Abstract: Presented herein are techniques for use in a network environment that includes one or more service zones, each service zone including at least one instance of an in-line application service to be applied to network traffic and one or more routers to direct network traffic to the at least one service, and a route target being assigned to a unique service zone to serve as a community value for route import and export between routers of other service zones, destination networks or source networks via a control protocol. An edge router in each service zone or destination network advertises routes by its destination network prefix tagged with its route target. A service chain is created by importing and exporting of destination network prefixes by way of route targets at edge routers of the service zones or source networks.
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公开(公告)号：US09806962B2
公开(公告)日：2017-10-31
申请号：US15223235
申请日：2016-07-29
Applicant: Cisco Technology, Inc.
Inventor： James Guichard , Carlos M. Pignataro , David Ward , Paul Quinn , Surendra Kumar
IPC: H04L1/00 , H04L12/24 , H04L12/26 , H04L12/703 , H04L12/725 , H04L12/723 , H04L29/08
CPC classification number: H04L41/5009 , H04L41/0654 , H04L41/0668 , H04L41/5038 , H04L41/5077 , H04L43/0823 , H04L43/50 , H04L45/28 , H04L45/302 , H04L45/50 , H04L67/10
Abstract: Presented herein are techniques performed in a network comprising a plurality of network nodes each configured to apply one or more service functions to traffic that passes the respective network nodes in a service path. At a network node, an indication is received of a failure or degradation of one or more service functions or applications applied to traffic at the network node. Data descriptive of the failure or degradation is generated. A previous service hop network node at which a service function or application was applied to traffic in the service path is determined. The data descriptive of the failure or degradation is communicated to the previous service hop network node.
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