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    Dynamic Service Path Creation
    11.
    发明申请
    Dynamic Service Path Creation 有权
    动态服务路径创建

    公开(公告)号：US20150026362A1

    公开(公告)日：2015-01-22

    申请号：US13944050

    申请日：2013-07-17

    Applicant: Cisco Technology, Inc.

    Inventor： James Guichard ,  Paul Quinn ,  Surendra Kumar ,  Govind P. Sharma ,  Abhijit Patra

    IPC: H04L12/725

    CPC classification number: H04L45/30 ,  H04L67/16 ,  H04L67/18

    Abstract: Presented herein are techniques for dynamic creation of a unique service path for a service chain. In one example, a service controller and a plurality of service nodes are provided, each service node configured to apply a service function to traffic that passes through the respective service node. The service controller defines a service chain identifying a set of service functions and an order in which they are applied. The service controller receives an indication that the service chain has been instantiated at a classifier, and creates a unique service path for the service chain, wherein the unique service path includes the service chain and the classifier at which the service chain is instantiated.

    Abstract translation: 这里提出的是用于动态创建服务链的唯一服务路径的技术。 在一个示例中，提供服务控制器和多个服务节点，每个服务节点被配置为将服务功能应用于通过相应服务节点的业务。 服务控制器定义了标识服务功能集合的服务链和应用它们的顺序。 服务控制器接收到在分类器处已经被实例化的服务链的指示，并且为服务链创建唯一的服务路径，其中唯一服务路径包括服务链和实例化服务链的分类器。

    DETERMINING THE OPERATIONS PERFORMED ALONG A SERVICE PATH/SERVICE CHAIN
    12.
    发明申请
    DETERMINING THE OPERATIONS PERFORMED ALONG A SERVICE PATH/SERVICE CHAIN 审中-公开
    确定在服务路径/服务链上执行的操作

    公开(公告)号：US20160337209A1

    公开(公告)日：2016-11-17

    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: H04L12/24 ,  H04L12/26 ,  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.

    Abstract translation: 这里呈现的是在包括多个网络节点的网络中执行的技术，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服务路径中的相应网络节点的业务。 在网络节点处，接收到应用于网络节点处的业务的一个或多个服务功能或应用的故障或劣化的指示。 产生描述故障或退化的数据。 确定应用服务功能或应用程序到服务路径中的业务的先前服务跳网络节点。 将描述故障或劣化的数据传送到先前的服务跳网络节点。

    Elastic service chains
    13.
    发明授权
    Elastic service chains 有权
    弹性服务链

    公开(公告)号：US09467382B2

    公开(公告)日：2016-10-11

    申请号：US14170750

    申请日：2014-02-03

    Applicant: Cisco Technology, Inc.

    Inventor： Surendra Kumar ,  David Chang ,  Nagaraj Bagepalli ,  Abhijit Patra

    IPC: H04L1/00 ,  H04L12/803 ,  H04L12/911 ,  H04L12/721 ,  H04L12/24 ,  H04L29/06

    CPC classification number: H04L47/125 ,  H04L41/50 ,  H04L45/38 ,  H04L47/782 ,  H04L63/20

    Abstract: Presented herein are elastic service chain techniques. In one example, a network element receives data traffic to be processed by a service chain that specifies an ordered sequence of service pools including a first service pool and second service pool, wherein each service pool comprises a plurality of network services. A network service is determined from the first service pool to be applied to the data traffic, and data traffic is forwarded to the network service in the first service pool.

    Abstract translation: 这里提出的是弹性服务链技术。 在一个示例中，网络元件接收要由服务链处理的数据流量，所述服务链指定包括第一服务池和第二服务池的服务池的有序序列，其中每个服务池包括多个网络服务。 从要应用于数据流量的第一服务池确定网络服务，并将数据流量转发到第一服务池中的网络服务。

    Data plane learning of bi-directional service chains
    14.
    发明授权
    Data plane learning of bi-directional service chains 有权
    双向服务链的数据平面学习

    公开(公告)号：US09246799B2

    公开(公告)日：2016-01-26

    申请号：US13891245

    申请日：2013-05-10

    Applicant: Cisco Technology, Inc.

    Inventor： James Guichard ,  Paul Quinn ,  David Ward ,  Surendra Kumar ,  Navindra Yadav ,  Michael R. Smith ,  Nagaraj A. Bagepalli

    IPC: H04L12/28 ,  H04L12/725

    CPC classification number: H04L45/306 ,  H04L41/0893 ,  H04L47/2441 ,  H04L69/22

    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.

    Abstract translation: 提供了技术来将服务链结构与底层网络转发状态分离，并允许服务链转发要求的数据平面学习和服务功能状态要求与服务链的前向和后向转发路径之间的任何关联。 在包括多个网络节点的网络中，每个网络节点被配置为对通过相应网络节点的业务应用服务功能，在网络节点处接收分组。 当网络节点确定其应用的服务功能是有状态时，它更新分组的网络服务报头中的上下文信息，以指示在网络节点处应用的服务功能是有状态的，并且用于与分类标准匹配的反向路径的业务 将被返回到网络节点。

    Determining the Operations Performed Along a Service Path/Service Chain
    15.
    发明申请
    Determining the Operations Performed Along a Service Path/Service Chain 有权
    确定沿服务路径/服务链执行的操作

    公开(公告)号：US20140362682A1

    公开(公告)日：2014-12-11

    申请号：US13912224

    申请日：2013-06-07

    Applicant: Cisco Technology, Inc.

    Inventor： James Guichard ,  Carlos M. Pignataro ,  David Ward ,  Paul Quinn ,  Surendra Kumar

    IPC: H04L12/24 ,  H04L12/26

    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.

    Abstract translation: 这里呈现的是在包括多个网络节点的网络中执行的技术，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服务路径中的相应网络节点的业务。 在网络节点处，接收到应用于网络节点处的业务的一个或多个服务功能或应用的故障或劣化的指示。 产生描述故障或退化的数据。 确定应用服务功能或应用程序到服务路径中的业务的先前服务跳网络节点。 将描述故障或劣化的数据传送到先前的服务跳网络节点。

    Data plane learning of bi-directional service chains
    16.
    发明授权
    Data plane learning of bi-directional service chains 有权

    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.

    Stacking metadata contexts for service chains
    20.
    发明授权
    Stacking metadata contexts for service chains 有权
    堆叠服务链的元数据上下文

    公开(公告)号：US09438512B2

    公开(公告)日：2016-09-06

    申请号：US14851236

    申请日：2015-09-11

    Applicant: Cisco Technology, Inc.

    Inventor： James Guichard ,  Paul Quinn ,  David Ward ,  Surendra Kumar ,  Nagaraj A. Bagepalli ,  Michael R. Smith ,  Navindra Yadav

    IPC: H04L12/721 ,  H04L12/725 ,  H04L29/06

    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 first 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 performs at least one of the service functions in the service path and rewrites the service header with a second set of context headers. The second set of context headers include metadata derived from performing the service function(s) at the network node.

    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，其包括定义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的第一组上下文标题的信息。 网络节点执行服务路径中的至少一个服务功能，并用第二组上下文头重写服务头部。 第二组上下文报头包括从在网络节点处执行服务功能导出的元数据。

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