公开(公告)号：US09124485B2

公开(公告)日：2015-09-01

申请号：US13970057

申请日：2013-08-19

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Giles D.Y. Heron ,  Andrew James McLachlan ,  Peter Weinberger ,  Maciej Konstantynowicz

IPC: H04L12/751 ,  H04L12/715

CPC classification number: H04L45/02 ,  H04L12/287 ,  H04L41/12 ,  H04L45/64 ,  H04L61/2015

Abstract: An example method for topology aware provisioning in a software-defined network environment is provided and includes receiving, at a provider edge device (PE), access network topology information associated with a customer edge device in a network environment, synthesizing the access network topology information and a local router information associated with the PE into a topology message, and publishing the topology message to a central controller in the network environment. The synthesizing can include aggregating the access network topology information and the local router information, modeling the aggregated information in a representation-independent format and encoding the representation-independent formatted aggregated information in standardized machine-parsable format.

Abstract translation: 提供了一种用于在软件定义的网络环境中进行拓扑感知配置的示例性方法，包括在提供商边缘设备（PE）处接收与网络环境中的客户边缘设备相关联的接入网络拓扑信息，合成接入网络拓扑信息 以及与PE相关联的本地路由器信息到拓扑消息中，并将拓扑消息发布到网络环境中的中央控制器。 合成可以包括聚合接入网络拓扑信息和本地路由器信息，以与表示无关的格式对聚合信息进行建模，并以标准化机器可解析格式编码与表示无关的格式化的聚合信息。

公开(公告)号：US09992103B2

公开(公告)日：2018-06-05

申请号：US14162954

申请日：2014-01-24

Applicant: Cisco Technology, Inc.

Inventor： Hendrikus G. P. Bosch ,  Peter Weinberger ,  Praveen Bhagwatula ,  Michael E. Lipman ,  Alessandro Duminuco ,  Louis Gwyn Samuel

IPC: H04L12/721 ,  H04W24/02

CPC classification number: H04L45/38 ,  H04W24/02

Abstract: Presented herein are techniques to reduce the number of redirected subscriber packet flows while performing sticky hierarchical load balancing. An Nth head end network element may be activated such that a plurality of N head end network elements are active and capable of receiving and processing one or more packet flows. A primary load balancer may then be directed to overwrite a portion of pointers of a hash table in an evenly distributed manner with pointers to the Nth head end network element such that packet flows are forwarded to the Nth head end network element, wherein the hash table retains a static number of entries as the number of head end network elements is modified.

公开(公告)号：US20150049631A1

公开(公告)日：2015-02-19

申请号：US13970057

申请日：2013-08-19

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Giles D.Y. Heron ,  Andrew James McLachlan ,  Peter Weinberger ,  Maciej Konstantynowicz

IPC: H04L12/751

CPC classification number: H04L45/02 ,  H04L12/287 ,  H04L41/12 ,  H04L45/64 ,  H04L61/2015

Abstract: An example method for topology aware provisioning in a software-defined network environment is provided and includes receiving, at a provider edge device (PE), access network topology information associated with a customer edge device in a network environment, synthesizing the access network topology information and a local router information associated with the PE into a topology message, and publishing the topology message to a central controller in the network environment. The synthesizing can include aggregating the access network topology information and the local router information, modeling the aggregated information in a representation-independent format and encoding the representation-independent formatted aggregated information in standardized machine-parsable format.

Abstract translation: 提供了一种用于在软件定义的网络环境中进行拓扑感知配置的示例性方法，包括在提供商边缘设备（PE）处接收与网络环境中的客户边缘设备相关联的接入网络拓扑信息，合成接入网络拓扑信息 以及与PE相关联的本地路由器信息到拓扑消息中，并将拓扑消息发布到网络环境中的中央控制器。 合成可以包括聚合接入网络拓扑信息和本地路由器信息，以与表示无关的格式对聚合信息进行建模，并以标准化机器可解析格式编码与表示无关的格式化的聚合信息。

公开(公告)号：US20150215819A1

公开(公告)日：2015-07-30

申请号：US14162954

申请日：2014-01-24

Applicant: Cisco Technology, Inc.

Inventor： Hendrikus G.P. Bosch ,  Peter Weinberger ,  Praveen Bhagwatula ,  Michael E. Lipman ,  Alessandro Duminuco ,  Louis Gwyn Samuel

IPC: H04W28/08 ,  H04L12/721 ,  H04L12/743 ,  H04W24/04 ,  H04L12/707

CPC classification number: H04L45/38 ,  H04W24/02

Abstract: Presented herein are techniques to reduce the number of redirected subscriber packet flows while performing sticky hierarchical load balancing. An Nth head end network element may be activated such that a plurality of N head end network elements are active and capable of receiving and processing one or more packet flows. A primary load balancer may then be directed to overwrite a portion of pointers of a hash table in an evenly distributed manner with pointers to the Nth head end network element such that packet flows are forwarded to the Nth head end network element, wherein the hash table retains a static number of entries as the number of head end network elements is modified.

Abstract translation: 这里提出的是在执行粘性分层负载平衡的同时减少重定向用户分组流的数量的技术。 可以激活第N个头端网元，使得多个N个头端网元是活动的并且能够接收和处理一个或多个分组流。 然后可以引导主要负载平衡器以均匀分布的方式用指针覆盖散列表的指针的一部分，使得分组流被转发到第N个头端网元，其中散列表 随着头端网元数量的修改，保留了静态数量的条目。