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。