公开(公告)号：US09674104B1

公开(公告)日：2017-06-06

申请号：US14156239

申请日：2014-01-15

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Rong Pan ,  Preethi Natarajan ,  Chiara Piglione ,  Mythili Suryanarayana Prabhu ,  Alon Bernstein ,  Frederick J. Baker

IPC: H04L12/863 ,  H04L12/823 ,  H04L12/875 ,  H04L12/801 ,  H04L12/861

CPC classification number: H04L47/50 ,  H04L47/12 ,  H04L47/127 ,  H04L47/283 ,  H04L47/30 ,  H04L47/32 ,  H04L47/56 ,  H04L47/625 ,  H04L47/6255 ,  H04L49/9005

Abstract: 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.

公开(公告)号：US09641253B2

公开(公告)日：2017-05-02

申请号：US14453725

申请日：2014-08-07

Applicant: Cisco Technology, Inc.

Inventor： Alon Bernstein ,  John Chapman

IPC: H04B10/20 ,  H04B10/27 ,  H04B10/2575 ,  H04L12/28

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 Modem (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 modem 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：US09369339B2

公开(公告)日：2016-06-14

申请号：US14041859

申请日：2013-09-30

Applicant: CISCO TECHNOLOGY, INC.

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

IPC: H04L1/00 ,  H04L12/24 ,  H04L12/803 ,  H04N7/173

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.

Abstract translation: 电缆调制解调器终端系统（CMTS）的方法，系统和装置。 CMTS可以包括配置成提供多个虚拟CMTS（vCMTS）的虚拟机。 CMTS还可以包括多个订户组。 可以将多个用户组中的每个用户组分配给多个vCMTS的vCMTS。 另外，每个vCMTS被配置为提供一个进程。

公开(公告)号：US09660932B2

公开(公告)日：2017-05-23

申请号：US14591607

申请日：2015-01-07

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Alon Bernstein

IPC: H04B1/38 ,  H04L12/927 ,  H04B3/00 ,  H04L12/911

CPC classification number: H04L47/806 ,  H04B3/00 ,  H04L47/828

Abstract: A method is provided in one example embodiment and includes allocating by a scheduler a transmission opportunity to each of one or more flows listed in a tracking table associated with the a scheduler; and, for each of the one or more flows, sending a bandwidth allocation message to a network element associated with the flow in accordance with a schedule maintained by the scheduler, wherein the bandwidth allocation request is unsolicited by the network element; and determining whether the flow optimized use of the transmission opportunity in accordance with an allocation policy implemented by the scheduler. The method further includes adjusting the schedule in accordance with results of the determining for each of the one or more flows. In certain embodiments, the allocating may comprise allocating an equal transmission opportunity to each of the one or more flows.

公开(公告)号：US20160328251A1

公开(公告)日：2016-11-10

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 ,  H04L12/46 ,  H04L12/28

CPC classification number: G06F9/455 ,  G06F9/45558 ,  G06F2009/45562 ,  G06F2009/4557 ,  H04L12/2801 ,  H04L12/2885 ,  H04L12/4633

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.

Abstract translation: 提供一种用于促进虚拟电缆调制解调器终端系统VCMTS冗余在电缆调制解调器网络环境中的示例性系统和方法，包括在有线调制解调器网络中的第一服务器上产生虚拟网络功能（VNF）的第一实例，产生第二实例 VNF在不同的第二服务器上，将第二实例配置为与网络的同一子网中的第一实例通信耦合，并且在第一实例与第二服务器之间同步（例如，复制，协调，匹配等）状态 实例。 在具体实施例中，VNF包括VCMTS。

公开(公告)号：US20160197846A1

公开(公告)日：2016-07-07

申请号：US14591607

申请日：2015-01-07

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Alon Bernstein

IPC: H04L12/927 ,  H04L12/911 ,  H04B3/00

CPC classification number: H04L47/806 ,  H04B3/00 ,  H04L47/828

Abstract: A method is provided in one example embodiment and includes allocating by a scheduler a transmission opportunity to each of one or more flows listed in a tracking table associated with the a scheduler; and, for each of the one or more flows, sending a bandwidth allocation message to a network element associated with the flow in accordance with a schedule maintained by the scheduler, wherein the bandwidth allocation request is unsolicited by the network element; and determining whether the flow optimized use of the transmission opportunity in accordance with an allocation policy implemented by the scheduler. The method further includes adjusting the schedule in accordance with results of the determining for each of the one or more flows. In certain embodiments, the allocating may comprise allocating an equal transmission opportunity to each of the one or more flows.

Abstract translation: 在一个示例实施例中提供了一种方法，并且包括由调度器向与调度器相关联的跟踪表中列出的一个或多个流中的每个流量分配传输机会; 并且对于所述一个或多个流中的每一个，根据由所述调度器维护的调度，向与所述流相关联的网元发送带宽分配消息，其中，所述带宽分配请求是由所述网元未经请求; 以及根据由所述调度器实现的分配策略来确定所述流量是否优化所述传输机会的使用。 该方法还包括根据针对所述一个或多个流中的每一个的确定结果调整调度。 在某些实施例中，分配可以包括为一个或多个流中的每一个分配相等的传输机会。

公开(公告)号：US20140369205A1

公开(公告)日：2014-12-18

申请号：US14474149

申请日：2014-08-31

Applicant: Cisco Technology, Inc.

Inventor： Alon Bernstein ,  Chrisanto Leano

IPC: H04L12/24 ,  H04L12/833 ,  H04L12/819

CPC classification number: H04L41/0896 ,  H04L41/0213 ,  H04L41/5003 ,  H04L47/10 ,  H04L47/215 ,  H04L47/2458

Abstract: Methods and devices are provided for regulating traffic on a network. According to some aspects of the invention, if a subscriber's upstream traffic exceeds a predetermined level over a first period of time, the subscriber's quality of service is adjusted without requiring the subscriber to re-register. According to some embodiments, a first token bucket is used to determine whether the subscriber's upstream traffic exceeds the predetermined level over the first period of time. In some such embodiments, the first token bucket is used to control the burst size of another token bucket, depending on the subscriber's upstream traffic during the first period of time.

Abstract translation: 提供了用于调节网络上的流量的方法和设备。 根据本发明的一些方面，如果订户的上游业务在第一时间段内超过预定的级别，则调整用户的服务质量，而不需要用户重新注册。 根据一些实施例，使用第一令牌桶来确定订户的上游流量是否在第一时间段内超过预定水平。 在一些这样的实施例中，第一令牌桶用于根据第一时间段内的订户的上行流量来控制另一令牌桶的突发大小。

公开(公告)号：US20230208782A1

公开(公告)日：2023-06-29

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：US10860335B1

公开(公告)日：2020-12-08

申请号：US15279458

申请日：2016-09-29

Applicant: Cisco Technology, Inc.

Inventor： Mark Shurtleff ,  Alon Bernstein

IPC: G06F9/445 ,  G06F3/0482 ,  G06F3/0481 ,  G06F3/0486 ,  H04L12/24 ,  G06F8/60 ,  G06F8/65

Abstract: In one embodiment, a catalog of items for deployment is provided, the catalog comprising at least one catalog item, the at least one catalog item represented as an icon in a graphical user interface (GUI). At least one remote PHY device (RPD) represented in the GUI as an icon for populating with one item from the catalog of items is also provided. The at least one catalog item is associated with the at least one RPD using an interface in the GUI. A deployment mechanism is invoked for deploying the at least one catalog item at the at least one RPD with which the icon representing the at least one RPD has been populated. Related systems, apparatus, and methods are also disclosed.

公开(公告)号：US10248443B2

公开(公告)日：2019-04-02

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 ,  H04L12/16 ,  H04L12/28 ,  H04L12/46

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.