公开(公告)号：US20180295058A1

公开(公告)日：2018-10-11

申请号：US16001820

申请日：2018-06-06

Applicant: Cisco Technology, Inc.

Inventor： Richard M. PRUSS ,  John E. MCDOWALL ,  Jan MEDVED

IPC: H04L12/741 ,  H04L12/725 ,  H04L12/721 ,  H04L12/833 ,  G06F9/455 ,  H04L29/06 ,  H04L12/931

CPC classification number: H04L45/74 ,  G06F9/45533 ,  H04L45/306 ,  H04L45/38 ,  H04L47/31 ,  H04L49/70 ,  H04L63/0227 ,  H04L63/101 ,  H04L63/1408

Abstract: Techniques are provided for enabling tag networking. In one example, a network device (e.g., switch, router, etc.) is configured to receive a packet of a traffic flow and to analyze the traffic flow to determine the packet belongs to a particular type of traffic. The network device can then add and/or change a tag in a data field of the packet. The tag, among other things, serves as an identifier for the particular type of traffic flow. The tag is identifiable by a downstream node that is preconfigured to recognize the tag and to carry out logic in response to recognizing the tag. Advantageously, the tag functionality of the present approach provides a generalized way of adding information to packets; the information and the associated functionalities are customizable during a runtime of the network.

公开(公告)号：US20140282628A1

公开(公告)日：2014-09-18

申请号：US13844326

申请日：2013-03-15

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Richard M. PRUSS ,  John E. MCDOWALL ,  Jan MEDVED ,  Larry ABRAHAMS

IPC: G06F9/54

CPC classification number: H04L67/10 ,  G06F9/54 ,  G06F9/541 ,  H04L41/0803 ,  H04L41/5096

Abstract: System, method, and computer program product to orchestrate software defined networking (SDN) applications, by providing a plurality of network elements in a network, each network element comprising a plurality of ingress interfaces, a plurality of egress interfaces, and a routing information base (RIB), providing, to an SDN application, an application program interface (API) to abstract properties and events of: (i) the ingress interfaces, (ii) the egress interfaces, and (iii) the RIB of a specified network element, receiving a request from the SDN application apply a function to the specified network element, the function specifying to modify: (i) a preprocessing operation on a data packet, (ii) the RIB, (iii) a post processing operation on the data packet, and (iv) the properties of the ingress interfaces, egress interfaces, and RIBs of the specified network element, and applying the function to the specified network element through the API.

Abstract translation: 通过在网络中提供多个网元来配置软件定义网络（SDN）应用的系统，方法和计算机程序产品，每个网元包括多个入口接口，多个出口接口和路由信息库 （RIB），向SDN应用提供应用程序接口（API）以抽象出属性和事件：（i）入口接口，（ii）出口接口，和（iii）指定网元的RIB 接收来自SDN应用程序的请求应用于指定网元的功能，指定修改的功能：（i）对数据包进行预处理操作，（ii）RIB，（iii）对数据进行后处理操作 数据包，以及（iv）指定网元的入口接口，出接口和RIB的属性，并通过API将该功能应用于指定的网元。

公开(公告)号：US20160212043A1

公开(公告)日：2016-07-21

申请号：US15080967

申请日：2016-03-25

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Richard M. PRUSS ,  John E. MCDOWALL ,  Jan MEDVED

IPC: H04L12/741

CPC classification number: H04L45/74 ,  G06F9/45533 ,  H04L45/306 ,  H04L45/38 ,  H04L47/31 ,  H04L49/70 ,  H04L63/0227 ,  H04L63/101 ,  H04L63/1408

Abstract: Techniques are provided for enabling tag networking. In one example, a network device (e.g., switch, router, etc.) is configured to receive a packet of a traffic flow and to analyze the traffic flow to determine the packet belongs to a particular type of traffic. The network device can then add and/or change a tag in a data field of the packet. The tag, among other things, serves as an identifier for the particular type of traffic flow. The tag is identifiable by a downstream node that is preconfigured to recognize the tag and to carry out logic in response to recognizing the tag. Advantageously, the tag functionality of the present approach provides a generalized way of adding information to packets; the information and the associated functionalities are customizable during a runtime of the network.

Abstract translation: 提供了技术来实现标签组网。 在一个示例中，网络设备（例如交换机，路由器等）被配置为接收业务流的分组并且分析业务流以确定分组属于特定类型的业务。 然后，网络设备可以在分组的数据字段中添加和/或更改标签。 该标签尤其用作特定类型的业务流的标识符。 该标签可被下游节点识别，该下游节点被预配置为识别该标签并且执行逻辑以响应识别该标签。 有利地，本方法的标签功能提供了将信息添加到分组的一般方式; 信息和相关功能在网络运行时可定制。

公开(公告)号：US20150229709A1

公开(公告)日：2015-08-13

申请号：US14691784

申请日：2015-04-21

Applicant: Cisco Technology, Inc.

Inventor： Richard M. PRUSS ,  John E. MCDOWALL ,  Jan MEDVED ,  Larry ABRAHAMS

IPC: H04L29/08 ,  G06F9/54

CPC classification number: H04L67/10 ,  G06F9/54 ,  G06F9/541 ,  H04L41/0803 ,  H04L41/5096

Abstract: System, method, and computer program product to perform an operation comprising providing, to a software defined networking (SDN) application executing on a first network element, of a plurality of network elements in a network, an application program interface (API) to abstract access to: (i) a plurality of ingress interfaces of the first network element, (ii) a plurality of egress interfaces of the first network element, and (iii) a routing information base (RIB) of the first network element, wherein each of the plurality of network elements comprise a plurality of ingress interfaces, a plurality of egress interfaces, and a RIB, receiving a request from the SDN application invoke a function of the API to apply the function to the first network element, and applying the function to the first network element through the API.

Abstract translation: 用于执行操作的系统，方法和计算机程序产品包括向在网络中的多个网络元件提供在第一网络元件上执行的软件定义的网络（SDN）应用程序，抽象的应用程序接口（API） 访问：（i）第一网元的多个入口接口，（ii）第一网元的多个出口接口，和（iii）第一网元的路由信息​​库（RIB），其中每个 所述多个网络元件包括多个入口接口，多个出口接口和RIB，从所述SDN应用接收请求，调用所述API的功能以将所述功能应用于所述第一网络元件，以及应用所述功能 通过API到第一个网元。

公开(公告)号：US20140280898A1

公开(公告)日：2014-09-18

申请号：US13843435

申请日：2013-03-15

Applicant: Cisco Technology, Inc.

Inventor： Eric A. VOIT ,  Richard M. PRUSS ,  John E. MCDOWALL ,  Jan MEDVED

IPC: H04L12/26

CPC classification number: H04L43/026 ,  H04L43/028 ,  H04L45/38 ,  H04L45/42 ,  H04L45/64 ,  H04L45/70 ,  H04L47/70 ,  H04L47/762 ,  H04L47/781 ,  H04L47/808 ,  H04L49/30 ,  H04L61/00 ,  H04L61/103 ,  H04L61/1523 ,  H04L61/2015 ,  H04L67/1097 ,  H04L67/18 ,  H04L67/2842 ,  H04L67/2847 ,  H04W4/02 ,  H04W4/029 ,  H04W40/20 ,  H04W64/00

Abstract: Embodiments described herein use APIs on network devices in a SDN enabled network to monitor the network traffic flowing through the network devices and determine an identity of the client initiating the network traffic. Specifically, the APIs provide a user application with user credentials, IP addresses, MAC addresses, and other identifying information mined from the network flows. Once the identity is found, the application may identify the client's current geographic location. The network devices may continue to monitor the network devices to identify any movement events associated with the client. In response to a movement event, the application may reallocate resources proximate to the new geographic location of the client.

Abstract translation: 本文描述的实施例使用在启用SDN的网络中的网络设备上的API来监视流经网络设备的网络流量并确定启动网络流量的客户端的身份。 具体来说，API为用户应用提供从网络流中挖掘的用户凭证，IP地址，MAC地址以及其他识别信息。 一旦找到该身份，应用程序可能会识别客户当前的地理位置。 网络设备可以继续监视网络设备以识别与客户端相关联的任何移动事件。 响应于移动事件，应用可以重新分配靠近客户端的新地理位置的资源。

公开(公告)号：US20140280834A1

公开(公告)日：2014-09-18

申请号：US13842774

申请日：2013-03-15

Applicant: CISCO TECHNOLOGY, INC

Inventor： Jan MEDVED ,  Andrew MCLACHLAN ,  David WARD ,  David MEYER

IPC: H04L12/70

CPC classification number: H04L47/122 ,  H04L41/0609 ,  H04L41/0686 ,  H04L43/08 ,  H04L43/16

Abstract: A network node may contain a virtual software-defined networking (SDN) switch and a local a management engine (e.g., a software application) for generating performance metrics based on received management plane traffic. Specifically, the virtual SDN switch may identify and forward received management plane traffic to the local management engine. In turn, the management engine evaluates the management plane traffic to generate performance metrics without forwarding the management plane packets to the remote SDN controller. The management engine may compare the metrics to one or more thresholds to determine the current state or health of the data paths in a network. If a threshold is exceeded, the management engine may transmit an alert to the virtual SDN switch to perform a corrective action—e.g., using a backup data path after the primary data path fails.

Abstract translation: 网络节点可以包含虚拟软件定义网络（SDN）交换机和本地管理引擎（例如，软件应用程序），用于基于接收到的管理平面业务来生成性能度量。 具体地说，虚拟SDN交换机可以识别并转发接收到的管理平面流量到本地管理引擎。 反过来，管理引擎评估管理平面流量以生成性能度量，而不将管理平面数据包转发到远程SDN控制器。 管理引擎可以将度量与一个或多个阈值进行比较，以确定网络中数据路径的当前状态或运行状况。 如果超过阈值，则管理引擎可以向虚拟SDN交换机发送警报以执行纠正措施，例如在主数据路径发生故障之后使用备份数据路径。