公开(公告)号：US11895042B2

公开(公告)日：2024-02-06

申请号：US18115957

申请日：2023-03-01

Applicant: Cisco Technology, Inc.

Inventor： Plamen Nedeltchev ,  David Delano Ward ,  Mohit Agrawal ,  Alon Bernstein

IPC: H04L47/70 ,  G06F9/50 ,  H04L43/022 ,  H04L43/062

CPC classification number: H04L47/822 ,  G06F9/5072 ,  H04L43/022 ,  H04L43/062

Abstract: Resource provider specifications, characterizing computing resources of computing resource providers, are received. The reachability of each IP address included in the received specification is determined. An agent is deployed that is operable to determine the value of each of a set of metrics in the environment of the host at which the agent is deployed. The agent determines the value of each metric of the set of metrics in the environment of the relevant host, and communicates the determined values to one or more computing devices that validate whether the resources characterized by the communicated values are sufficient to provide the performance characterized by the received specification and that each ISP router complies with a predetermined policy. For each computing resource provider validated and determined to comprise an ISP router compliant with policy, the specified computing resources are added to a pool of resources for cloud computing.

公开(公告)号：US20160366052A1

公开(公告)日：2016-12-15

申请号：US15096746

申请日：2016-04-12

Applicant: CISCO TECHNOLOGY, INC.

Inventor： John T. Chapman ,  Carlos M. Pignataro ,  Alon Bernstein ,  Stefano B. Previdi

IPC: H04L12/723 ,  H04L29/06 ,  H04L12/721

CPC classification number: H04L45/50 ,  H04L45/66

Abstract: An example system and method for facilitating communication with segment routing in a cable modem network environment is provided and includes receiving, at a remote physical device (RPD) in a network, a PW control packet including segment routing information including a PW segment identifier (PW SID) for establishing a data session between the RPD and a network element over a packet switched network, the PW SID indicative of a segment in the packet switched network to be used for communicating PW data packets of the data session, the PW control packet and the PW data packets being emulations of a point-to-point connection between the RPD and the network element, and writing into a segment table of the RPD a mapping between the PW SID and the data session. In specific embodiments, the network element comprises a Converged Cable Access Platform (CCAP) Core of a cable network.

Abstract translation: 提供一种用于在电缆调制解调器网络环境中促进与段路由通信的示例系统和方法，包括在网络中的远程物理设备（RPD）处接收包括段路由信息的PW控制分组，所述PW控制分组包括PW分段标识符（PW SID），用于通过分组交换网络在RPD和网元之间建立数据会话，PW SID表示分组交换网络中用于传送数据会话的PW数据分组的分段，PW控制分组和 PW数据包是RPD与网元之间的点到点连接的仿真，PWD和数据会话之间的映射写入到RPD的分段表中。 在具体实施例中，网络元件包括电缆网络的融合电缆接入平台（CCAP）核心。

公开(公告)号：US20150180726A1

公开(公告)日：2015-06-25

申请号：US14632474

申请日：2015-02-26

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Rajiv Asati ,  Alon Bernstein ,  John T. Chapman

IPC: H04L12/24 ,  H04L12/28 ,  H04B10/27

CPC classification number: H04L41/12 ,  H04B3/46 ,  H04B10/27 ,  H04L12/2801 ,  H04L41/0853

Abstract: A method in an example embodiment can include polling a first cable modem in a cable network and receiving a first response message from the first cable modem identifying a downstream frequency detected by the first cable modem. The method further includes determining the downstream frequency is split between at least two fiber nodes and determining a cable modem termination system (CMTS) service group topology, where the topology includes the at least two fiber nodes. In specific embodiments, determining that the downstream frequency is split is based on at least the first response message from the first cable modem and a second response message from a second cable modem. In more specific embodiments, the method includes constructing a hybrid fiber-coaxial (HFC) topology map of the cable network based on at least the first and second response messages, where the HFC topology map indicates the CMTS service group topology.

Abstract translation: 示例实施例中的方法可以包括轮询有线网络中的第一电缆调制解调器，并且从第一电缆调制解调器接收识别第一电缆调制解调器检测到的下行频率的第一响应消息。 该方法还包括确定下行频率在至少两个光纤节点之间被分割并且确定电缆调制解调器终端系统（CMTS）服务组拓扑，其中拓扑包括至少两个光纤节点。 在具体实施例中，确定下行频率被拆分基于至少来自第一电缆调制解调器的第一响应消息和来自第二电缆调制解调器的第二响应消息。 在更具体的实施例中，该方法包括至少基于第一和第二响应消息来构建有线网络的混合光纤同轴（HFC）拓扑图，其中HFC拓扑图指示CMTS服务组拓扑。

公开(公告)号：US10089123B2

公开(公告)日：2018-10-02

申请号：US14807720

申请日：2015-07-23

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Alon Bernstein ,  John T. Chapman ,  Amit Singh ,  Jan Medved

IPC: G06F9/455 ,  H04L12/28 ,  H04L12/46

Abstract: An example system and method for facilitating virtual cable modem termination system VCMTS redundancy in cable modem network environments is provided and includes spawning a first instance of a virtual network function (VNF) on a first server in a cable modem network, spawning a second instance of the VNF on a different second server, configuring the second instance to be communicatively coupled to the first instance in a same subnet of the network, and synchronizing (e.g., copying, coordinating, matching, etc.) state between the first instance and the second instance. In specific embodiments, the VNF comprises a VCMTS.

公开(公告)号：US10003405B2

公开(公告)日：2018-06-19

申请号：US15461065

申请日：2017-03-16

Applicant: Cisco Technology, Inc.

Inventor： Alon Bernstein ,  John Chapman

IPC: H04B10/20 ,  H04B10/27 ,  H04B10/2575

CPC classification number: H04B10/27 ,  H04B10/2575 ,  H04L12/2801 ,  H04L12/2885 ,  H04L12/2898

Abstract: A Data Over Cable Service Interface Specifications (DOCSIS) Passive Optical Network (PON) system (DPON) makes optical subscribers appear as cable subscribers. In one embodiment, a Cable Modern (CM) proxy is located in an Optical Line Termination (OLT). The OLT implements a cable modem protocol stack that operates as the CM proxy and communicates with a back office system. The OLT translates the data retrieved by the CM proxy into Optical Network Unit (ONU) recognizable commands, and sends the translated data to the ONU. In a second embodiment, the CM proxy is located in the ONU. The ONU implements the cable modern protocol stack that operates as the CM proxy and communicates with the back office system. The ONU translates the data retrieved by the CM proxy into ONU recognizable commands and sends the translated data to the ONU.

公开(公告)号：US09820275B2

公开(公告)日：2017-11-14

申请号：US15130629

申请日：2016-04-15

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Hang Jin ,  John T. Chapman ,  Gerard White ,  Alon Bernstein

IPC: H04K1/10 ,  G01R31/08 ,  H04W72/04 ,  H04W72/12 ,  H04W72/14 ,  H04L29/08

CPC classification number: H04W72/0446 ,  H04L47/72 ,  H04L47/76 ,  H04L47/788 ,  H04L47/822 ,  H04L47/823 ,  H04L67/16 ,  H04W72/1263 ,  H04W72/14

Abstract: A method is provided in one example embodiment and includes predicting a user average data rate for a cable modem; establishing a minimum bandwidth grant size and a maximum bandwidth grant size for the cable modem based on the predicted user average data rate; receiving from the cable modem a request for a particular amount of bandwidth; performing an overgrant if the particular amount of bandwidth is less than the minimum bandwidth grant size, in which the overgrant comprises granting to the cable modem more than the requested particular amount of bandwidth; and performing an undergrant if the particular amount of bandwidth is greater than the maximum bandwidth grant size, in which the undergrant comprises granting to the cable modem less than the requested particular amount of bandwidth.

公开(公告)号：US09641354B2

公开(公告)日：2017-05-02

申请号：US15047767

申请日：2016-02-19

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Alon Bernstein ,  John T. Chapman ,  Rundong Huang ,  Sangeeta Ramakrishnan ,  Charles J. Duffy

IPC: H04L1/00 ,  H04L12/46 ,  H04L12/24 ,  H04L12/803 ,  G06F9/455 ,  H04L12/741 ,  H04L29/08 ,  H04L29/06

CPC classification number: H04L12/4633 ,  G06F9/45558 ,  G06F2009/45583 ,  G06F2009/45595 ,  H04L41/0672 ,  H04L41/0816 ,  H04L41/0843 ,  H04L45/745 ,  H04L47/125 ,  H04L67/10 ,  H04L69/22 ,  H04L69/324

Abstract: A method, a system, and an apparatus provide for a cable modem termination system (CMTS). The CMTS may include a virtual machine configured to provide a plurality of virtual CMTSs (vCMTSs). The CMTS may also include a plurality of subscriber groups. Each subscriber group of the plurality of subscriber groups may be assigned to a vCMTS of the plurality of vCMTSs. Additionally, each vCMTS is configured to provide a process.

公开(公告)号：US20160328252A1

公开(公告)日：2016-11-10

申请号：US14807728

申请日：2015-07-23

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Amit Singh ,  John T. Chapman ,  Alon Bernstein

IPC: G06F9/455 ,  H04L12/46 ,  H04L12/28

CPC classification number: G06F9/455 ,  G06F9/45558 ,  G06F2009/45562 ,  G06F2009/4557 ,  H04L12/2801 ,  H04L12/4633

Abstract: An example system and method for facilitating virtual cable modem termination system (VCMTS) migration in cable modem network environments is provided and includes spawning, by an orchestration component executing using a processor, a first instance of a virtual network function (VNF) on a first server in a cable modem network, storing state of the first instance as state information in an external database, spawning a second instance of the VNF on a different second server, synchronizing state of the second instance with the state information stored in the external database, and deleting the first instance. In specific embodiments, the VNF comprises a VCMTS.

Abstract translation: 提供了一种用于促进电缆调制解调器网络环境中的虚拟电缆调制解调器终端系统（VCMTS）迁移的示例性系统和方法，包括通过使用处理器执行的业务流程组件的产生，第一实例的虚拟网络功能（VNF） 服务器，将第一实例的状态作为状态信息存储在外部数据库中，在不同的第二服务器上生成VNF的第二实例，将第二实例的状态与存储在外部数据库中的状态信息同步， 并删除第一个实例。 在具体实施例中，VNF包括VCMTS。

公开(公告)号：US09419862B2

公开(公告)日：2016-08-16

申请号：US14632474

申请日：2015-02-26

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Rajiv Asati ,  Alon Bernstein ,  John T. Chapman

IPC: H04L12/24 ,  H04B10/27 ,  H04L12/28 ,  H04B3/46

CPC classification number: H04L41/12 ,  H04B3/46 ,  H04B10/27 ,  H04L12/2801 ,  H04L41/0853

Abstract: A method in an example embodiment can include polling a first cable modem in a cable network and receiving a first response message from the first cable modem identifying a downstream frequency detected by the first cable modem. The method further includes determining the downstream frequency is split between at least two fiber nodes and determining a cable modem termination system (CMTS) service group topology, where the topology includes the at least two fiber nodes. In specific embodiments, determining that the downstream frequency is split is based on at least the first response message from the first cable modem and a second response message from a second cable modem. In more specific embodiments, the method includes constructing a hybrid fiber-coaxial (HFC) topology map of the cable network based on at least the first and second response messages, where the HFC topology map indicates the CMTS service group topology.

公开(公告)号：US10044607B2

公开(公告)日：2018-08-07

申请号：US15096746

申请日：2016-04-12

Applicant: CISCO TECHNOLOGY, INC.

Inventor： John T. Chapman ,  Carlos M. Pignataro ,  Alon Bernstein ,  Stefano B. Previdi

IPC: H04L12/723 ,  H04L12/721 ,  H04L29/06

Abstract: A system and method for facilitating communication with segment routing in a cable modem network environment may be provided. A pseudowire (PW) control packet including segment routing information including a PW segment identifier (SID) for establishing a data session between the RPD and a network element over a packet switched network is received at a remote physical device (RPD). The PW SID may be indicative of a segment in the packet switched network to be used for communicating PW data packets of the data session. The PW control packet and the PW data packets being are emulations of a point-to-point connection between the RPD and the network element. A mapping between the PW SID and the data session is written into a segment table of the RPD.