公开(公告)号：US09979602B1

公开(公告)日：2018-05-22

申请号：US14468116

申请日：2014-08-25

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Palani Chinnakannan ,  Rex Emmanuel Fernando ,  Dhananjaya Rao ,  Sami Boutros

IPC: H04L12/24 ,  H04L12/751

CPC classification number: H04L41/12 ,  H04L45/10

Abstract: An example method for instantiating a network using a network function virtualization infrastructure (NVFI) pod in a network environment is provided and includes receiving a request to instantiate a logical network topology in the NFVI pod that includes a pre-selected set of interconnected pre-configured hardware resources, the abstract network topology including a virtual network function (VNF) forwarding graph (FG), distilling the VNF FG into various interconnected VNFs, deploying various VNFs of the VNF FG to a plurality of virtual machines, and instantiating the network topology on appropriate hardware resources in the NFVI pod. In specific embodiments, the pre-selected set of interconnected pre-configured hardware resources includes a plurality of compute servers, a plurality of controller servers, a set of network resources, and a plurality of storage resources. It may also include a high performance virtual switch operating in a user space of respective memory elements of a plurality of servers.

公开(公告)号：US09503363B2

公开(公告)日：2016-11-22

申请号：US14659220

申请日：2015-03-16

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Muthurajah Sivabalan ,  Sami Boutros ,  Clarence Filsfils ,  Rex Emmanuel Fernando ,  Lakshmi Sharma ,  Santiago Vazquez Freitas ,  Bruce McDougall ,  Robert Keith Fielding

IPC: H04L12/28 ,  H04L12/723 ,  H04L12/911 ,  H04L29/12

CPC classification number: H04L45/50 ,  H04L47/825 ,  H04L61/2007

Abstract: A method is provided in one example embodiment and includes receiving a request to create a path through a network, wherein the path originates on a first network device and terminates on the second network device; identifying a first controller associated with the first network device, wherein the first controller proxies control plane functions for the first network device; identifying a second controller associated with the second network device, wherein the second controller proxies control plane functions for the second network device; and computing the path using the first controller as a source and the second controller as a destination. The first controller installs the computed path on the first network device and the second controller installs the computed path on the second network device.

Abstract translation: 在一个示例性实施例中提供了一种方法，并且包括接收通过网络创建路径的请求，其中所述路径起始于第一网络设备并终止于所述第二网络设备上; 识别与所述第一网络设备相关联的第一控制器，其中所述第一控制器代理所述第一网络设备的控制平面功能; 识别与所述第二网络设备相关联的第二控制器，其中所述第二控制器代理所述第二网络设备的控制平面功能; 以及使用第一控制器作为源并且将第二控制器作为目的地来计算路径。 第一个控制器在第一个网络设备上安装计算的路径，第二个控制器将计算的路径安装在第二个网络设备上。

公开(公告)号：US09455908B2

公开(公告)日：2016-09-27

申请号：US14325059

申请日：2014-07-07

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Rex Emmanuel Fernando ,  Dhananjaya Rao ,  Sami Boutros

IPC: H04L12/721 ,  H04L12/741 ,  H04L12/733 ,  H04L12/715

CPC classification number: H04L45/74 ,  H04L45/04 ,  H04L45/20 ,  H04L45/36 ,  H04L45/38

Abstract: An example method for bi-directional flow stickiness in a network environment is provided and includes receiving a packet of a flow from a source address in a network, and destined to a destination address outside the network, looking up a flow table for an entry corresponding to the flow, and caching a forward flow entry and a reverse flow entry in the flow table if the look up results in a miss, the forward flow entry indicating a routing lookup, and the reverse flow entry indicating a previous hop from which the packet was received to maintain a bi-directional flow stickiness. Some embodiments also include receiving another packet from the destination address outside the network destined to the source address in the network, and forwarding it to the previous hop listed in the reverse flow entry.

Abstract translation: 提供了一种用于网络环境中的双向流动粘性的示例性方法，包括从网络中的源地址接收流的分组，并且发往网络外部的目的地地址，查找对应的条目的流表 如果查询导致错过，则前向流入口和逆流条目缓存在流表中，前向流条目指示路由查找，反向流条目指示前一跳，其中分组 被收到以保持双向流动粘性。 一些实施例还包括从网络外的目的地址接收去往网络中的源地址的另一个分组，并将其转发到反向流入口中列出的上一跳。

公开(公告)号：US20160006654A1

公开(公告)日：2016-01-07

申请号：US14325059

申请日：2014-07-07

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Rex Emmanuel Fernando ,  Dhananjaya Rao ,  Sami Boutros

IPC: H04L12/741 ,  H04L12/733

CPC classification number: H04L45/74 ,  H04L45/04 ,  H04L45/20 ,  H04L45/36 ,  H04L45/38

Abstract: An example method for bi-directional flow stickiness in a network environment is provided and includes receiving a packet of a flow from a source address in a network, and destined to a destination address outside the network, looking up a flow table for an entry corresponding to the flow, and caching a forward flow entry and a reverse flow entry in the flow table if the look up results in a miss, the forward flow entry indicating a routing lookup, and the reverse flow entry indicating a previous hop from which the packet was received to maintain a bi-directional flow stickiness. Some embodiments also include receiving another packet from the destination address outside the network destined to the source address in the network, and forwarding it to the previous hop listed in the reverse flow entry.

Abstract translation: 提供了一种用于网络环境中的双向流动粘性的示例性方法，包括从网络中的源地址接收流的分组，并且发往网络外部的目的地地址，查找对应的条目的流表 如果查询导致错过，则前向流入口和逆流条目缓存在流表中，前向流条目指示路由查找，反向流条目指示前一跳，其中分组 被收到以保持双向流动粘性。 一些实施例还包括从网络外的目的地址接收去往网络中的源地址的另一个分组，并将其转发到反向流入口中列出的上一跳。