公开(公告)号：US09548920B2

公开(公告)日：2017-01-17

申请号：US13651597

申请日：2012-10-15

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Maithili Narasimha ,  Ashwin Deepak Swaminathan ,  Naga Venkata Kiran K. Chunduri ,  Srinivas Sardar

IPC: G06F15/173 ,  H04L12/721 ,  H04W40/24 ,  H04L12/741

CPC classification number: H04L45/38 ,  H04L45/54 ,  H04W40/242

Abstract: A method is provided in one example embodiment and includes determining an action to be performed with respect to a packet corresponding to a new flow received at a network device and determining whether a new entry comprising an indication of the determined action can be added to a flow table of the network device. The determination of whether a new entry can be added to the flow table is made with reference to reservation information specified in a port profile associated with the new flow. Responsive to a determination that the new entry can be added, the new entry is added to the flow table. In one embodiment, determining whether the new entry can be added comprises determining whether an existing entry can be aged out based on the reservation information specified in the associated port profile.

Abstract translation: 在一个示例性实施例中提供了一种方法，并且包括确定相对于对应于在网络设备处接收的新流量的分组来执行的动作，并且确定是否可以将包括所确定的动作的指示的新条目添加到流 网络设备表。 参考在与新流相关联的端口配置文件中指定的预留信息来确定是否可以将新条目添加到流表。 响应于可以添加新条目的确定，新条目将添加到流表中。 在一个实施例中，确定是否可以添加新条目包括基于在相关联的端口简档中指定的预约信息来确定现有条目是否可以老化。

公开(公告)号：US20150085870A1

公开(公告)日：2015-03-26

申请号：US14037210

申请日：2013-09-25

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Maithili Narasimha ,  Suraj Nellikar ,  Sourabh Suresh Patwardhan ,  Srinivas Sardar

IPC: H04L12/931 ,  H04L12/721

CPC classification number: H04L49/70 ,  H04L45/44 ,  H04L45/54 ,  H04L49/50

Abstract: An example method for co-operative load sharing and redundancy in distributed service chains is provided and includes deriving a service chain comprising a plurality of services in a distributed virtual switch (DVS) network environment, where a first service node provides a first portion of a specific service in the plurality of services to a packet traversing the network, and a second service node provides a second portion of the specific service to the packet, and configuring service forwarding tables at virtual Ethernet Modules associated with respective service nodes in the service chain. In a specific embodiment, the first service node and the second service node provide substantially identical service functions to the packet, wherein the specific service comprises the service functions. In various embodiments, each service node tags each packet to indicate a service completion history of service functions performed on the packet at the service node.

Abstract translation: 提供了一种用于分布式服务链中的合作负载共享和冗余的示例性方法，包括在分布式虚拟交换机（DVS）网络环境中导出包括多个服务的服务链，其中第一服务节点提供第一部分 所述多个业务中的特定服务是通过所述网络的分组，第二服务节点向所述分组提供所述特定服务的第二部分，以及在与所述服务链中的相应服务节点相关联的虚拟以太网模块处配置服务转发表。 在具体实施例中，第一服务节点和第二服务节点为分组提供基本上相同的服务功能，其中特定服务包括服务功能。 在各种实施例中，每个服务节点标记每个分组以指示在服务节点处对分组执行的服务功能的服务完成历史。

公开(公告)号：US20140108632A1

公开(公告)日：2014-04-17

申请号：US13651597

申请日：2012-10-15

Applicant: Cisco Technology, Inc.

Inventor： Maithili Narasimha ,  Ashwin Deepak Swaminathan ,  Naga Venkata Kiran K. Chunduri ,  Srinivas Sardar

IPC: G06F15/173

CPC classification number: H04L45/38 ,  H04L45/54 ,  H04W40/242

Abstract: A method is provided in one example embodiment and includes determining an action to be performed with respect to a packet corresponding to a new flow received at a network device and determining whether a new entry comprising an indication of the determined action can be added to a flow table of the network device. The determination of whether a new entry can be added to the flow table is made with reference to reservation information specified in a port profile associated with the new flow. Responsive to a determination that the new entry can be added, the new entry is added to the flow table. In one embodiment, determining whether the new entry can be added comprises determining whether an existing entry can be aged out based on the reservation information specified in the associated port profile.

Abstract translation: 在一个示例性实施例中提供了一种方法，并且包括确定相对于对应于在网络设备处接收的新流量的分组来执行的动作，并且确定是否可以将包括所确定的动作的指示的新条目添加到流 网络设备表。 参考在与新流相关联的端口配置文件中指定的预留信息来确定是否可以将新条目添加到流表。 响应于可以添加新条目的确定，新条目将添加到流表中。 在一个实施例中，确定是否可以添加新条目包括基于在相关联的端口简档中指定的预约信息来确定现有条目是否可以老化。