专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20160366052A1 COMMUNICATION WITH SEGMENT ROUTING IN A CABLE MODEM NETWORK ENVIRONMENT 审中-公开
标题翻译：在电缆调制解调器网络环境中的分段路由通信
公开(公告)号：US20160366052A1
公开(公告)日：2016-12-15
申请号：US15096746
申请日：2016-04-12
申请人： CISCO TECHNOLOGY, INC.
发明人： John T. Chapman , Carlos M. Pignataro , Alon Bernstein , Stefano B. Previdi
IPC分类号： H04L12/723 , H04L29/06 , H04L12/721
CPC分类号： H04L45/50 , H04L45/66
摘要： 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.
摘要翻译：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。

2. 发明申请

US20150180726A1 SYSTEM AND METHOD FOR DISCOVERING AND VERIFYING A HYBRID FIBER-COAXIAL TOPOLOGY IN A CABLE NETWORK ENVIRONMENT 审中-公开
标题翻译：用于在电缆网络环境中发现和验证混合光纤同轴拓扑的系统和方法
公开(公告)号：US20150180726A1
公开(公告)日：2015-06-25
申请号：US14632474
申请日：2015-02-26
申请人： CISCO TECHNOLOGY, INC.
发明人： Rajiv Asati , Alon Bernstein , John T. Chapman
IPC分类号： H04L12/24 , H04L12/28 , H04B10/27
CPC分类号： H04L41/12 , H04B3/46 , H04B10/27 , H04L12/2801 , H04L41/0853
摘要： 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.
摘要翻译：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。

3. 发明授权

US10089123B2 Virtual cable modem termination system redundancy in a cable modem network environment 有权
公开(公告)号：US10089123B2
公开(公告)日：2018-10-02
申请号：US14807720
申请日：2015-07-23
申请人： CISCO TECHNOLOGY, INC.
发明人： Alon Bernstein , John T. Chapman , Amit Singh , Jan Medved
IPC分类号： G06F9/455 , H04L12/28 , H04L12/46
摘要： 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.

4. 发明授权

US10003405B2 Data over cable service interface specification (DOCSIS) over passive optical network (PON) 有权
公开(公告)号：US10003405B2
公开(公告)日：2018-06-19
申请号：US15461065
申请日：2017-03-16
申请人： Cisco Technology, Inc.
发明人： Alon Bernstein , John Chapman
IPC分类号： H04B10/20 , H04B10/27 , H04B10/2575
CPC分类号： H04B10/27 , H04B10/2575 , H04L12/2801 , H04L12/2885 , H04L12/2898
摘要： 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.

5. 发明授权

US09820275B2 Proactive upstream scheduling for flows in a point-to-multipoint communications network 有权
公开(公告)号：US09820275B2
公开(公告)日：2017-11-14
申请号：US15130629
申请日：2016-04-15
申请人： CISCO TECHNOLOGY, INC.
发明人： Hang Jin , John T. Chapman , Gerard White , Alon Bernstein
IPC分类号： H04K1/10 , G01R31/08 , H04W72/04 , H04W72/12 , H04W72/14 , H04L29/08
CPC分类号： H04W72/0446 , H04L47/72 , H04L47/76 , H04L47/788 , H04L47/822 , H04L47/823 , H04L67/16 , H04W72/1263 , H04W72/14
摘要： 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.

6. 发明授权

US09641354B2 Virtual cable modem termination system 有权
公开(公告)号：US09641354B2
公开(公告)日：2017-05-02
申请号：US15047767
申请日：2016-02-19
申请人： CISCO TECHNOLOGY, INC.
发明人： Alon Bernstein , John T. Chapman , Rundong Huang , Sangeeta Ramakrishnan , Charles J. Duffy
IPC分类号： H04L1/00 , H04L12/46 , H04L12/24 , H04L12/803 , G06F9/455 , H04L12/741 , H04L29/08 , H04L29/06
CPC分类号： H04L12/4633 , G06F9/45558 , G06F2009/45583 , G06F2009/45595 , H04L41/0672 , H04L41/0816 , H04L41/0843 , H04L45/745 , H04L47/125 , H04L67/10 , H04L69/22 , H04L69/324
摘要： 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.

7. 发明申请

US20160328252A1 VIRTUAL MODEM TERMINATION SYSTEM MIGRATION IN A CABLE MODEM NETWORK ENVIRONMENT 审中-公开
标题翻译：虚拟调制解调器终端系统在电缆调制解调器网络环境中的移植
公开(公告)号：US20160328252A1
公开(公告)日：2016-11-10
申请号：US14807728
申请日：2015-07-23
申请人： CISCO TECHNOLOGY, INC.
发明人： Amit Singh , John T. Chapman , Alon Bernstein
IPC分类号： G06F9/455 , H04L12/46 , H04L12/28
CPC分类号： G06F9/455 , G06F9/45558 , G06F2009/45562 , G06F2009/4557 , H04L12/2801 , H04L12/4633
摘要： 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.
摘要翻译：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。

8. 发明授权

US09419862B2 System and method for discovering and verifying a hybrid fiber-coaxial topology in a cable network environment 有权
公开(公告)号：US09419862B2
公开(公告)日：2016-08-16
申请号：US14632474
申请日：2015-02-26
申请人： CISCO TECHNOLOGY, INC.
发明人： Rajiv Asati , Alon Bernstein , John T. Chapman
IPC分类号： H04L12/24 , H04B10/27 , H04L12/28 , H04B3/46
CPC分类号： H04L41/12 , H04B3/46 , H04B10/27 , H04L12/2801 , H04L41/0853
摘要： 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.

9. 发明授权

US10044607B2 Communication with segment routing in a cable modem network environment 有权
公开(公告)号：US10044607B2
公开(公告)日：2018-08-07
申请号：US15096746
申请日：2016-04-12
申请人： CISCO TECHNOLOGY, INC.
发明人： John T. Chapman , Carlos M. Pignataro , Alon Bernstein , Stefano B. Previdi
IPC分类号： H04L12/723 , H04L12/721 , H04L29/06
摘要： 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.

10. 发明授权

US09674104B1 Adapting proportional integral controller enhanced algorithm for varying network conditions in a network environment 有权
公开(公告)号：US09674104B1
公开(公告)日：2017-06-06
申请号：US14156239
申请日：2014-01-15
申请人： CISCO TECHNOLOGY, INC.
发明人： Rong Pan , Preethi Natarajan , Chiara Piglione , Mythili Suryanarayana Prabhu , Alon Bernstein , Frederick J. Baker
IPC分类号： H04L12/863 , H04L12/823 , H04L12/875 , H04L12/801 , H04L12/861
CPC分类号： H04L47/50 , H04L47/12 , H04L47/127 , H04L47/283 , H04L47/30 , H04L47/32 , H04L47/56 , H04L47/625 , H04L47/6255 , H04L49/9005
摘要： An example method for adapting Proportional Integral controller Enhanced (PIE) algorithm for varying network conditions is provided and includes estimating an average dequeue rate at which packets are dequeued from a queue of packets maintained in a buffer in a network element operating, estimating a current queuing latency for the queue of packets based on the average dequeue rate, determining a target delay based on the average dequeue rate, the target delay varying with the average dequeue rate according to a predetermined relationship, and calculating a current drop probability associated with a probability that packets arriving at the buffer will be dropped or marked, the current drop probability being calculated using at least the current queuing latency and the target delay. In some embodiments, a threshold for a number of bytes dequeued from the buffer is estimated based on network conditions.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式