公开(公告)号：US20160248658A1

公开(公告)日：2016-08-25

申请号：US14809017

申请日：2015-07-24

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Keyur Patel ,  Serpil Bayraktar ,  Manish Bhardwaj ,  David Delano Ward ,  Burjiz Pithawala

IPC: H04L12/751 ,  H04L12/741 ,  H04L12/721

CPC classification number: H04L45/02 ,  H04L45/127 ,  H04L45/42 ,  H04L45/48 ,  H04L45/74

Abstract: Embodiments are provided for providing optimal route reflector (ORR) root address assignment to route reflector clients and fast failover capabilities in an autonomous system, including identifying a first node in an autonomous system as a candidate root node of a first routing group, identifying a client node based on a neighbor address used in a first routing protocol, mapping the neighbor address to routing information received from the client node via a second routing protocol, and associating the neighbor address with the first routing group if the routing information includes an identifier of the first routing group. In more specific embodiments, identifying the first node as a candidate root node includes determining the first node and the first routing group are advertised in a first protocol packet, and determining the first node and the second routing group are advertised in a second protocol packet.

Abstract translation: 提供实施例用于在自治系统中为路由反射器客户端提供最佳路由反射器（ORR）根地址分配和快速故障转移能力，包括将自治系统中的第一节点标识为第一路由组的候选根节点，识别客户端 基于在第一路由协议中使用的邻居地址的节点，将所述邻居地址映射到经由第二路由协议从所述客户端节点接收的路由信息​​，并且如果所述路由信息包括所述第一路由协议的标识符，则将所述邻居地址与所述第一路由组相关联 第一路由组。 在更具体的实施例中，将第一节点识别为候选根节点包括确定第一节点并且第一路由组在第一协议分组中被通告，并且确定第一节点和第二路由组在第二协议分组中被通告。

公开(公告)号：US11500851B2

公开(公告)日：2022-11-15

申请号：US16884370

申请日：2020-05-27

Applicant: Cisco Technology, Inc.

Inventor： Timothy Evens ,  Serpil Bayraktar

IPC: G06F16/23 ,  G06F16/28 ,  G06F16/22

Abstract: Disclosed in a fast, compact, efficient, hardware agnostic, stateful data store that can universally store and track millions of stateful data objects, such as networking routing data (or any stateful data) in files for use in, for example, embedded applications. Stateful data objects can be tracked by a modified tree for updating and insert data objects into the stateful data store. The stateful data object can also be allocated additional space in memory for potential future data updates.

公开(公告)号：US10911567B2

公开(公告)日：2021-02-02

申请号：US16458404

申请日：2019-07-01

Applicant: Cisco Technology, Inc.

Inventor： Timothy Evens ,  Serpil Bayraktar ,  David D. Ward

IPC: H04L29/08 ,  H04L29/06

Abstract: Presented herein is a Client Network Information Service (CNIS). The CNIS is configured to determine client network information for a communication from a client to at least one application running in a cloud infrastructure environment. The client network information is delivered to instances of the application and to a router associated with the application in order to enable the application to adjust service for the client.

公开(公告)号：US10541905B2

公开(公告)日：2020-01-21

申请号：US15969941

申请日：2018-05-03

Applicant: Cisco Technology, Inc.

Inventor： Keyur Patel ,  Serpil Bayraktar ,  Manish Bhardwaj ,  David Delano Ward ,  Burjiz Pithawala

IPC: H04L12/751 ,  H04L12/721 ,  H04L12/741 ,  H04L12/717 ,  H04L12/753

Abstract: Embodiments are provided for providing optimal route reflector (ORR) root address assignment to route reflector clients and fast failover capabilities in an autonomous system, including identifying a first node in an autonomous system as a candidate root node of a first routing group, identifying a client node based on a neighbor address used in a first routing protocol, mapping the neighbor address to routing information received from the client node via a second routing protocol, and associating the neighbor address with the first routing group if the routing information includes an identifier of the first routing group. In more specific embodiments, identifying the first node as a candidate root node includes determining the first node and the first routing group are advertised in a first protocol packet, and determining the first node and the second routing group are advertised in a second protocol packet.

公开(公告)号：US10097449B2

公开(公告)日：2018-10-09

申请号：US14805300

申请日：2015-07-21

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Keyur Patel ,  Serpil Bayraktar ,  Manish Bhardwaj ,  David Delano Ward ,  Burjiz Pithawala

IPC: H04L12/707 ,  H04L12/721 ,  H04L29/08 ,  H04L12/717

Abstract: Embodiments are provided for optimized best path selection for optimal route reflection and include configuring, by a cloud-based node, a first cluster of nodes in an autonomous system, and determining whether any paths for a network address prefix are available in the first cluster of nodes. Embodiments also include selecting a best path from one or more paths if the one or more paths are determined to be available in the first cluster for the network address prefix. Embodiments further include advertising the best path to one or more nodes in the first cluster. More specific embodiments include determining, if no paths for the network address prefix are available in the first cluster, another path for the network address prefix is available in a second cluster of nodes of the autonomous system, and selecting the other path as the best path.

公开(公告)号：US20170374174A1

公开(公告)日：2017-12-28

申请号：US15238811

申请日：2016-08-17

Applicant: Cisco Technology, Inc.

Inventor： Timothy Evens ,  Serpil Bayraktar ,  David D. Ward

IPC: H04L29/08 ,  H04L29/06

CPC classification number: H04L67/322 ,  H04L67/10 ,  H04L67/16 ,  H04L67/42

Abstract: Presented herein is a Client Network Information Service (CNIS). The CNIS is configured to determine client network information for a communication from a client to at least one application running in a cloud infrastructure environment. The client network information is delivered to instances of the application and to a router associated with the application in order to enable the application to adjust service for the client.

公开(公告)号：US09847939B2

公开(公告)日：2017-12-19

申请号：US14878014

申请日：2015-10-08

Applicant: Cisco Technology, Inc.

Inventor： Keyur Patel ,  Serpil Bayraktar ,  Manish Bhardwaj ,  David D. Ward ,  Arjun Sreekantiah ,  Burjiz Pithawala

IPC: H04L12/26 ,  H04L12/721 ,  H04L12/24

CPC classification number: H04L45/70 ,  H04L41/0893 ,  H04L43/50 ,  H04L45/02 ,  H04L45/04 ,  H04L45/123 ,  H04L45/22

Abstract: A network includes a route reflector peered with client routers. From a perspective of the route reflector, a best path to the destination address is selected by applying to candidate paths ordered comparison tests that progress from policy tests through one or more additional tests until the best path is selected. A determination is made as to whether the best path was selected based on the policy tests exclusively. If the best path was selected based on the policy tests exclusively, the best path is assigned to each of the client routers. If the best path was not selected based on the policy tests exclusively, from a perspective of each client router, a respective best path is selected by applying to the candidate paths the one or more additional tests, and the respective best paths are assigned to the respective client routers.