公开(公告)号：WO2016205016A1

公开(公告)日：2016-12-22

申请号：PCT/US2016/036204

申请日：2016-06-07

Applicant: CISCO TECHNOLOGY, INC.

Inventor： CHANG, David, W. ,  PATRA, Abhijit ,  BAGEPALLI, Nagaraj A.

IPC: H04L12/721 ,  H04L12/24 ,  H04L12/46 ,  H04L29/08 ,  G06F9/455

CPC classification number: H04L49/25 ,  H04L12/1886 ,  H04L12/4633 ,  H04L12/4641 ,  H04L41/042 ,  H04L45/04 ,  H04L45/18 ,  H04L45/66 ,  H04L67/1097

Abstract: According to one aspect, a method includes an Interecloud Fabric Switch (ICS) included in a public cloud and an ICS cluster obtaining a packet, and determining if the packet is obtained from a site-to-site link that links the ICS to an enterprise datacenter. If ilie packet is obtained fiom the site-to-site link, it is determined whether the packet is an unknown unicast packet. If the packet is ah unknown unicast packet, the packet is dropped, and if not, the packet is provided to an access link that links the ICS to a virtual machine. If the packet is not obtained from the site-to-site link, it is determined whether the packet is obtained from an inter-ICS link that allows the ICS to communicate with the ICS cluster. If the packet is obtained from the inter-ICS link, the packet is dropped if it is an unknown unicast packet.

Abstract translation: 根据一个方面，一种方法包括公共云中包括的Interecloud Fabric Switch（ICS）和获取分组的ICS集群，并且确定是否从将ICS链接到企业的站点到站点链路获得分组 数据中心。 如果从站点到站点链路获得了ilie数据包，则确定数据包是否是未知的单播数据包。 如果分组是未知单播分组，则丢弃分组，如果不是，则将分组提供给将ICS链接到虚拟机的接入链路。 如果没有从站点到站点链路获得分组，则确定分组是否从允许ICS与ICS集群通信的ICS间链路获得。 如果从ICS链路获得分组，则如果是未知的单播分组，则分组被丢弃。

公开(公告)号：WO2015138767A1

公开(公告)日：2015-09-17

申请号：PCT/US2015/020242

申请日：2015-03-12

Applicant: CISCO TECHNOLOGY, INC.

Inventor： KUMAR, Surendra M. ,  BAGEPALLI, Nagaraj A. ,  PATRA, Abhijit ,  QUINN, Paul ,  GUICHARD, James N. ,  BOSCH, Hendrikus G. P.

IPC: H04L12/725 ,  H04L12/24 ,  H04L12/801

CPC classification number: H04L45/02 ,  H04L41/08 ,  H04L41/0813 ,  H04L41/0893 ,  H04L41/0896 ,  H04L41/12 ,  H04L45/308 ,  H04L45/38

Abstract: An example method for service node originated service chains in a network environment is provided and includes receiving a packet at a service node in a network environment that includes a plurality of service nodes and a central classifier, analyzing the packet for a service chain modification or a service chain initiation, classifying the packet at the service node to a new service chain based on the analysis, initiating the new service chain at the service node if the analysis indicates service chain initiation, and modifying an existing service chain for the packet to the new service chain if the analysis indicates service chain modification. In specific embodiments, the analysis includes applying classification logic specific to the service node. Some embodiments, service node attributes and order of service nodes in substantially all service chains configured in the network may be received from a central controller.

Abstract translation: 提供了一种网络环境中服务节点发起的服务链的示例方法，包括在包括多个服务节点和中心分类器的网络环境中的服务节点处接收分组，分析服务链修改的分组或 服务链启动，基于分析将服务节点处的分组分类到新的服务链，如果分析指示服务链启动，则在服务节点处启动新的服务链，并将分组的现有服务链修改为新的 服务链如果分析表明服务链修改。 在具体实施例中，分析包括应用对服务节点特定的分类逻辑。 可以从中央控制器接收一些实施例，服务节点属性和在网络中配置的基本上所有服务链中的服务节点的顺序。

公开(公告)号：WO2015073190A1

公开(公告)日：2015-05-21

申请号：PCT/US2014/062244

申请日：2014-10-24

Applicant: CISCO TECHNOLOGY, INC.

Inventor： KUMAR, Surendra M. ,  BAGEPALLI, Nagaraj A. ,  DEVIREDDY, Dileep K. ,  PATRA, Abhijit

IPC: H04L12/721 ,  H04L12/715

CPC classification number: H04L47/2475 ,  H04L12/56 ,  H04L43/026 ,  H04L45/12 ,  H04L45/38 ,  H04L45/48 ,  H04L45/64 ,  H04L47/12 ,  H04L47/17

Abstract: A method is provided in one example embodiment and includes receiving at a network element a flow offload decision for a first service node comprising a portion of a service chain for processing a flow; recording the flow offload decision against the first service node at the network element; and propagating the flow offload decision backward on a service path to which the flow belongs if the first service node is hosted at the network element. Embodiments may also include propagating the flow offload decision backward on a service path to which the flow belongs if the flow offload decision is a propagated flow offload decision and the network element hosts a second service node that immediately precedes the service node on behalf of which the propagated flow offload decision was received and a flow offload decision has already been received by the network element from the second service node.

Abstract translation: 在一个示例实施例中提供了一种方法，并且包括在网络元件处接收包括用于处理流的服务链的一部分的第一服务节点的流卸载决定; 记录网元上的第一服务节点的流量卸载决定; 并且如果第一服务节点驻留在网络元件处，则在流所属的服务路径上向后传播流卸载决策。 实施例还可以包括：如果流卸载决定是传播的流卸载决定，并且网络主机驻留在服务节点之前的第二服务节点，则在流所属的服务路径上向后传播流卸载决策， 接收到传播流卸载决定，网元从第二服务节点已经接收到流卸载决定。