公开(公告)号：US09755959B2

公开(公告)日：2017-09-05

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: G06F15/173 ,  H04L12/725 ,  H04L29/08

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.

公开(公告)号：US20190124093A1

公开(公告)日：2019-04-25

申请号：US15788861

申请日：2017-10-20

Applicant: Cisco Technology, Inc.

Inventor： Govind P. Sharma ,  Gilles Rhéal Roy ,  Eric Levy-Abegnoli ,  Ajay Kumar Modi ,  Sridhar Vallepalli

IPC: H04L29/06

Abstract: Theft detection in data center networks may be provided. First, a first leaf switch may create an entry in a first distributed secure cache in response to an endpoint appearing on the first leaf switch. The entry may correspond to the endpoint and may be marked as having a tentative state. Then a request message may be sent to a plurality of leaf switches. The request message may comprise data identifying the endpoint. Next, a reply message may be received in response to the request message from a second leaf switch within the plurality of leaf switches. The tentative state may then be removed from the entry in response to the reply message indicating that the endpoint is valid.

公开(公告)号：US09258243B2

公开(公告)日：2016-02-09

申请号：US13891247

申请日：2013-05-10

Applicant: Cisco Technology, Inc.

Inventor： James Guichard ,  Paul Quinn ,  Rex Fernando ,  Govind P. Sharma ,  David Ward ,  Hendrikus G. P. Bosch ,  Luyuan Fang

IPC: H04L12/721 ,  H04L12/859 ,  H04L12/851

CPC classification number: H04L47/2475 ,  H04L47/2441

Abstract: A plurality of network nodes are deployed in a network, each network node configured to apply a service function to traffic that passes through the respective network nodes. A controller generates information for a service chain that involves application to traffic of one or more service functions at corresponding ones of the plurality of network nodes along a forward path through the one or more network nodes. The controller identifies one or more of the service functions within the service chain that is stateful. When one or more of the service functions of the service chain is stateful, the controller generates information for a reverse path through the one or more service nodes for the one or more stateful service functions. The controller binds a forward chain identifier for the forward path with a reverse chain identifier for the reverse path for the service chain.

Abstract translation: 多个网络节点部署在网络中，每个网络节点被配置为向通过各个网络节点的业务应用服务功能。 控制器生成用于服务链的信息，其涉及通过所述一个或多个网络节点沿着前向路径应用于所述多个网络节点中的对应的一个或多个服务功能的业务。 控制器识别服务链中的一个或多个服务功能是有状态的。 当服务链的一个或多个服务功能是有状态时，控制器通过用于一个或多个有状态服务功能的一个或多个服务节点生成用于反向路径的信息。 控制器将正向路径的前向链标识符与用于服务链的反向路径的反向链标识符绑定。

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。

公开(公告)号：US20140334295A1

公开(公告)日：2014-11-13

申请号：US13891247

申请日：2013-05-10

Applicant: CISCO TECHNOLOGY, INC.

Inventor： James Guichard ,  Paul Quinn ,  Rex Fernando ,  Govind P. Sharma ,  David Ward ,  Hendrikus G.P. Bosch ,  Luyuan Fang

IPC: H04L12/859 ,  H04L12/851

CPC classification number: H04L47/2475 ,  H04L47/2441

Abstract: A plurality of network nodes are deployed in a network, each network node configured to apply a service function to traffic that passes through the respective network nodes. A controller generates information for a service chain that involves application to traffic of one or more service functions at corresponding ones of the plurality of network nodes along a forward path through the one or more network nodes. The controller identifies one or more of the service functions within the service chain that is stateful. When one or more of the service functions of the service chain is stateful, the controller generates information for a reverse path through the one or more service nodes for the one or more stateful service functions. The controller binds a forward chain identifier for the forward path with a reverse chain identifier for the reverse path for the service chain.

Abstract translation: 多个网络节点部署在网络中，每个网络节点被配置为向通过各个网络节点的业务应用服务功能。 控制器生成用于服务链的信息，其涉及通过所述一个或多个网络节点沿着前向路径应用于所述多个网络节点中的对应的一个或多个服务功能的业务。 控制器识别服务链中的一个或多个服务功能是有状态的。 当服务链的一个或多个服务功能是有状态时，控制器通过用于一个或多个有状态服务功能的一个或多个服务节点生成用于反向路径的信息。 控制器将正向路径的前向链标识符与用于服务链的反向路径的反向链标识符绑定。