公开(公告)号：US09088438B2

公开(公告)日：2015-07-21

申请号：US13752925

申请日：2013-01-29

Applicant: Cisco Technology, Inc.

Inventor： Pravin Gohite ,  Samer Salam

IPC: H04L12/46 ,  H04L12/437

CPC classification number: H04L12/437 ,  H04L12/4641 ,  H04L41/0654 ,  H04L45/28 ,  H04L45/66

Abstract: In one embodiment, a first routing device establishes a virtual channel with a remote routing device in a G.8032 protocol Ethernet network ring. The first routing device and the remote routing device each being linked to a multi-homed routing device having Layer 2 connectivity to a core network. The multi-homed routing device is not configured with the G.8032 protocol. The first routing device identifies a link state from the first routing device to the multi-homed routing device. Layer 2 connectivity of the first routing device to the core network is controlled based upon the identified link state of the first routing device.

Abstract translation: 在一个实施例中，第一路由设备在G.8032协议以太网网络环中与远程路由设备建立虚拟信道。 第一路由设备和远程路由设备各自链接到具有到核心网络的第2层连接的多归属路由设备。 多宿主路由设备未配置G.8032协议。 第一路由设备识别从第一路由设备到多归属路由设备的链路状态。 基于所识别的第一路由设备的链路状态来控制第一路由设备到核心网的第2层连接。

公开(公告)号：US20150006757A1

公开(公告)日：2015-01-01

申请号：US13927350

申请日：2013-06-26

Applicant: Cisco Technology, Inc.

Inventor： Sami Boutros ,  Ali Sajassi ,  Samer Salam

IPC: H04L12/721

CPC classification number: H04L45/14 ,  H04L12/4641 ,  H04L45/04

Abstract: In one embodiment, one or more point-to-point (P2P) services are established between attachment circuits on provider edge (PE) devices in a computer network, and each of the one or more P2P services (e.g., Virtual Private Wire Service, VPWS) are associated with an Ethernet virtual private network (E-VPN) Ethernet Auto-Discovery (A-D) route, where links between the PE devices and customer edge (CE) devices are configured as Ethernet interfaces with Ethernet tagging. As such, the Ethernet A-D route may then be exchanged for each P2P service attachment circuit, and forwarding can be performed on the one or more P2P services without performing a media access control (MAC) address lookup and without performing MAC learning.

Abstract translation: 在一个实施例中，在计算机网络中的提供商边缘（PE）设备上的附接电路之间建立一个或多个点对点（P2P）服务，并且所述一个或多个P2P服务（例如，虚拟专线服务， VPWS）与以太网虚拟专用网（E-VPN）以太网自动发现（AD）路由相关联，其中PE设备和客户端（CE）设备之间的链路被配置为具有以太网标记的以太网接口。 因此，可以为每个P2P服务附接电路交换以太网A-D路由，并且可以在一个或多个P2P服务上执行转发，而不执行媒体访问控制（MAC）地址查找，而不执行MAC学习。

公开(公告)号：US20140233369A1

公开(公告)日：2014-08-21

申请号：US13769474

申请日：2013-02-18

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Samer Salam ,  Ali Sajassi ,  Sami Boutros

IPC: H04L12/24

CPC classification number: H04L41/0677 ,  H04L12/437 ,  H04L41/0659

Abstract: In one embodiment, a method includes obtaining a first indication from a first source included in an Ethernet ring and obtaining a second indication from a second source associated with a provider edge (PE) node The method also includes determining when the first indication and the second indication are indicative of a direct failure of the PE node and determining when the first indication and the second indication are indicative of a ring partition failure associated with the Ethernet ring. The direct failure of the PE node is identified when it is determined that the first indication and the second indication are indicative of the direct failure of the PE node, and the ring partition failure associated with the Ethernet ring is identified when it is determined that the first indication and the second indication are indicative of the ring partition failure associated with the Ethernet ring.

Abstract translation: 在一个实施例中，一种方法包括从包括在以太网环中的第一源获得第一指示，并且从与提供商边缘（PE）节点相关联的第二源获得第二指示。该方法还包括确定何时第一指示和第二指示 指示表示PE节点的直接故障，并且确定何时第一指示和第二指示指示与以太网环相关联的环分区故障。 当确定第一指示和第二指示指示PE节点的直接故障时，识别PE节点的直接故障，并且当确定与以太网环相关联的环分区故障被确定为 第一指示和第二指示指示与以太网环相关联的环分区故障。

公开(公告)号：US08780731B2

公开(公告)日：2014-07-15

申请号：US13826992

申请日：2013-03-14

Applicant: Cisco Technology, Inc.

Inventor： Vishnu Kant Varma ,  Wenwei Weng ,  Samer Salam ,  Lio Cheng

IPC: H04L12/26 ,  G06F11/00 ,  H04J3/06 ,  G06F12/16

CPC classification number: H04L43/50 ,  H04L12/413 ,  H04L41/0213 ,  H04L43/106 ,  H04L43/12 ,  H04L45/60

Abstract: One embodiment is a source router that monitors the performance of an Ethernet network. The source router generates an Ethernet connectivity check request frame that includes a transmission timestamp, and transmits the Ethernet connectivity check request frame to a destination router. The source router receives a reply from the destination router that is transmitted in response to receiving the Ethernet connectivity check request frame and determines a round trip time between the source router and the destination router based on a time of receipt of the reply and the transmission timestamp.

Abstract translation: 一个实施例是监视以太网网络的性能的源路由器。 源路由器生成包含传输时间戳的以太网连接检查请求帧，并将以太网连接检查请求帧发送到目的路由器。 源路由器接收来自目的地路由器的响应于响应于接收到以太网连接性检查请求帧而被发送的应答，并且基于接收回复的时间和传输时间戳确定源路由器与目的地路由器之间的往返时间 。

公开(公告)号：US12074661B2

公开(公告)日：2024-08-27

申请号：US17389572

申请日：2021-07-30

Applicant: Cisco Technology, Inc.

Inventor： Samer Salam ,  Min Se Kim

IPC: H04B17/391 ,  G06F30/18 ,  G06T15/00 ,  G06T15/04 ,  G06T15/08 ,  G06T17/10 ,  H04B17/318 ,  H04B17/336 ,  H04W16/20

CPC classification number: H04B17/391 ,  G06F30/18 ,  G06T15/005 ,  G06T15/04 ,  G06T15/08 ,  G06T17/10 ,  H04B17/318 ,  H04B17/336 ,  H04W16/20

Abstract: The present technology is directed to visualizing a Wi-Fi signal propagation in 3-D based on a building plan defined with implicit geometry. The present technology can extract data from a building plan file where a 3-D space and objects in a building plan are defined with implicit geometry, transform the implicit geometry to explicit geometry for the 3-D space and the objects to translate a positioning of the 3-D space and objects from a local coordinate system to a global coordinate system, calculate a RF propagation pattern in the 3-D space based on a RF propagation model for a plurality of Wi-Fi access points located in the 3-D space, and present a 3-D visualization of the RF propagation pattern in the 3-D space.

公开(公告)号：US11785477B2

公开(公告)日：2023-10-10

申请号：US17409468

申请日：2021-08-23

Applicant: Cisco Technology, Inc.

Inventor： Salvatore Valenza ,  Samer Salam ,  Taha Hajar ,  Nikodin Ristanovic ,  Arun G. Khanna ,  Matthew Aaron Silverman

IPC: H04W16/22 ,  H04B17/391 ,  H04B17/318 ,  H04W16/20

CPC classification number: H04W16/225 ,  H04B17/318 ,  H04B17/391 ,  H04W16/20

Abstract: The present technology is directed to providing a 3-D visualization of a Wi-Fi signal propagation pattern based on telemetry data. The present technology can receive telemetry data for a Wi-Fi access point located at a location of a building plan in a Wi-Fi visualization system, store the telemetry data with a timestamp, determine a change in a Wi-Fi coverage for the Wi-Fi access point based on the telemetry data, and present a visualization illustrating the change in the Wi-Fi coverage for the Wi-Fi access point. The present technology can further present an animation of the change in the Wi-Fi coverage for the Wi-Fi access point based on the stored telemetry data.

公开(公告)号：US11777625B2

公开(公告)日：2023-10-03

申请号：US17481916

申请日：2021-09-22

Applicant: Cisco Technology, Inc.

Inventor： Salvatore Valenza ,  Samer Salam ,  Taha Hajar ,  Nikodin Ristanovic ,  Arun G. Khanna ,  Matthew Aaron Silverman ,  James Florwick

IPC: H04B17/391 ,  G06T15/06 ,  G06T15/08 ,  H04W36/00 ,  H04W28/08 ,  H04W84/12 ,  H04W72/29 ,  H04W28/086

CPC classification number: H04B17/391 ,  G06T15/06 ,  G06T15/08 ,  H04W28/0865 ,  H04W36/0077 ,  H04W72/29 ,  H04W84/12

Abstract: The present technology is directed to visualizing a Wi-Fi access point (AP) signal propagation pattern through multiple floors. The present technology can execute a Wi-Fi signal propagation model corresponding to a first AP on a first floor of a building plan and a second AP on a second floor of the building plan. The Wi-Fi signal propagation model calculates a Wi-Fi signal propagation pattern for a plurality of APs including the first AP and the second AP. The present technology can further present a visualization of the Wi-Fi signal propagation pattern for the plurality of APs, wherein the Wi-Fi signal propagation pattern for the first AP on the first floor of the building plan projects onto the second floor of the building plan.

公开(公告)号：US11742965B2

公开(公告)日：2023-08-29

申请号：US17481767

申请日：2021-09-22

Applicant: Cisco Technology, Inc.

Inventor： Stefano Ferrari ,  Salvatore Valenza ,  Samer Salam ,  Taha Hajar ,  Nikodin Ristanovic ,  Arun G. Khanna

IPC: H04B17/318 ,  G01S13/89 ,  H04B17/391

CPC classification number: H04B17/318 ,  G01S13/89 ,  H04B17/391

Abstract: The present disclosure is directed to 3-D visualization of wireless signal propagation representing wireless signal strength and interference in 3-D space. The present technology can identify a plurality of access points (APs) in the 3-D space, determine a wireless signal strength for each of the plurality of APs, and determine an interference with the wireless signal strength of each of the plurality of APs, wherein the interference is caused by a neighboring AP of the plurality of APs in the 3-D space. The present technology can further present a 3-D visualization of a wireless signal propagation pattern representing the wireless signal strength from each of the plurality of APs in the 3-D space and the interference from the neighboring AP.

公开(公告)号：US11516086B1

公开(公告)日：2022-11-29

申请号：US16560902

申请日：2019-09-04

Applicant: Cisco Technology, Inc.

Inventor： Zachariah Cherian ,  Samer Salam ,  Ajay Madhavan ,  Tarunesh Ahuja ,  Michael Michaelides ,  Smruti Dilip Lele

IPC: H04L41/12 ,  H04L41/16 ,  H04L43/10 ,  H04L12/44

Abstract: Systems, methods, and computer-readable media for identifying a spanning tree loop in a network environment. Spanning tree loop indicators occurring in a network environment that utilizes a spanning tree protocol are identified. The spanning tree loop indicators are correlated to identify correlated spanning tree loop indicators within the network environment. A potential spanning tree loop is recognized from a plurality of the correlated spanning tree loop indicators based on indicator types of the correlated spanning tree loop indicators. The potential spanning tree loop is remedied in the network environment in response to recognizing the potential spanning tree loop in the network environment.

公开(公告)号：US10652137B2

公开(公告)日：2020-05-12

申请号：US15689141

申请日：2017-08-29

Applicant: Cisco Technology, Inc.

Inventor： Eric A. Voit ,  Samer Salam ,  Ludwig Alexander Clemm ,  Yegnanarayanan Gargya Chandramouli

IPC: H04L12/707 ,  H04L12/703 ,  H04L12/24 ,  H04L12/803

Abstract: An example method for facilitating conflict avoidant traffic routing in a network environment is provided and includes detecting, at a network element, an intent conflict at a peer network element in a network, and changing a forwarding decision at the network element to steer traffic around the conflicted peer network element. The intent conflict refers to an incompatibility between an asserted intent associated with the traffic and an implemented intent associated with the traffic. In specific embodiments, the detecting includes mounting rules from the peer network element into the network element, and analyzing the mounted rules to determine intent conflict. In some embodiments, a central controller in the network deploys one or more intentlets on a plurality of network elements in the network according to corresponding intent deployment parameters.