公开(公告)号：US07068712B1

公开(公告)日：2006-06-27

申请号：US09484612

申请日：2000-01-18

申请人： Joanna Qun Zang ,  Feisal Daruwalla ,  James R. Forster ,  Guenter E. Roeck ,  Joseph O'Donnell ,  John Chen ,  Mark Millet

发明人： Joanna Qun Zang ,  Feisal Daruwalla ,  James R. Forster ,  Guenter E. Roeck ,  Joseph O'Donnell ,  John Chen ,  Mark Millet

IPC分类号： H04B1/38

CPC分类号： G06F11/2005 ,  H04L29/12009 ,  H04L61/00 ,  H04N7/173 ,  H04N21/64738

摘要： A CMTS redundancy technique requires at least two CMTS interfaces (e.g., line cards) on one or more CMTS chassis at the head end of a cable network. One of the CMTSs serves as a backup or “protecting” CMTS. When another CMTS (a “working” CMTS) becomes unavailable to service its group of cable modems, the protecting CMTS takes over service to those cable modems. The SWITCHOVER takes place transparently (or nearly transparently) to the cable modems. The protecting CMTS provides service on the same downstream channel as used by the working CMTS. The cable modems need not modify any settings pursuant to their cable modem communication protocol (e.g., DOCSIS ranging). This transparency to the cable modems is realized by keeping the working and protecting CMTSs in synchronization regarding service parameters for the cable modems. In other words, the protecting CMTS maintains a list of current parameters for allowing service to the cable modems.

摘要翻译： CMTS冗余技术在电缆网络的头端的一个或多个CMTS机架上需要至少两个CMTS接口（例如，线路卡）。 其中一个CMTS作为备份或“保护”CMTS。 当另一个CMTS（“工作”CMTS）变得不可用来为其组的电缆调制解调器服务时，保护CMTS将接管这些电缆调制解调器的服务。 SWITCHOVER透明地（或几乎透明地）发送到电缆调制解调器。 保护CMTS在工作CMTS使用的同一下行信道上提供服务。 电缆调制解调器不需要根据其电缆调制解调器通信协议（例如，DOCSIS测距）来修改任何设置。 电缆调制解调器的透明度通过保持工作和保护CMTS与电缆调制解调器的服务参数同步而实现。 换句话说，保护CMTS维护用于允许对电缆调制解调器的服务的当前参数的列表。

公开(公告)号：US07334252B1

公开(公告)日：2008-02-19

申请号：US09687297

申请日：2000-10-13

申请人： Mark Millet ,  Guenter E. Roeck

发明人： Mark Millet ,  Guenter E. Roeck

IPC分类号： H04N7/173 ,  H04L12/28 ,  H04L12/56

CPC分类号： H04L12/2801 ,  H04L12/2856 ,  H04L12/2872 ,  H04L41/0213 ,  H04L41/0806 ,  H04L41/0816 ,  H04N21/42692 ,  H04N21/4432 ,  H04N21/6543

摘要： Methods, systems, and computer program products are disclosed for allowing rapid re-provisioning of a cable modem at the MAC/physical layer in a cable modem network. After a cable modem goes through power-up/self-test, i.e., a hard boot, and goes through initial provisioning, the modem is in a steady state in which standard DOCSIS periodic ranging is performed. It is during periodic ranging that the provisioning status, such as bit rate, ISP, etc., can be rapidly changed to allow for “on the fly” changes in provisioning. A cable modem is synchronized with the cable modem network. The modem is then provisioned once it receives a configuration file from a provisioning system. Periodic ranging is then performed between the modem and the CMTS, located either in a headend or a fiber node in the cable plant. The periodic ranging is interrupted by a command or action taken by the CMTS on the cable modem instead of the modem being affected directly by the provisioning system. Once periodic ranging is broken, either by cessation of polling messages or a ranging abort command, the modem goes directly to re-synchronizing with the cable network and re-provisions, i.e., avoids performing a power-on/self test or hard boot.

摘要翻译： 公开了方法，系统和计算机程序产品，用于允许电缆调制解调器在电缆调制解调器网络中的MAC /物理层处的快速重新供应。 在有线调制解调器通过上电/自检（即，硬启动）并且经过初始配置之后，调制解调器处于稳定状态，其中执行标准DOCSIS周期性测距。 在定期测距期间，诸如比特率，ISP等的供应状态可以被快速地改变以允许供应中的“即时”变化。 电缆调制解调器与电缆调制解调器网络同步。 一旦接收到配置系统的配置文件，调制解调器就被配置。 然后在调制解调器和位于电缆设备中的前端或光纤节点中的CMTS之间执行周期性测距。 周期性测距由CMTS在电缆调制解调器上采取的命令或动作中断，而不是调制解调器直接受到供应系统的影响。 一旦周期性测距被破坏，通过停止轮询消息或测距中止命令，调制解调器直接与有线网络重新同步并重新设置，即避免进行开机/自检或硬启动。

公开(公告)号：US08830843B2

公开(公告)日：2014-09-09

申请号：US12395120

申请日：2009-02-27

申请人： Mark Millet ,  Harshavardhan Parandekar

发明人： Mark Millet ,  Harshavardhan Parandekar

IPC分类号： G01R31/08 ,  H04J3/16

CPC分类号： H04N7/24 ,  H04L41/0631 ,  H04N21/238 ,  H04N21/2383 ,  H04N21/2385 ,  H04N21/2404 ,  H04N21/6118

摘要： A wideband cable network system includes multiple wideband cable modems and a Wideband Cable Modem Termination System (WCMTS). The WCMTS operates a Media Access Control (MAC) layer that communicates with the cable modems over multiple different downstream Radio Frequency (RF) channels and upstream RF channels. A wideband failure analytic manager tracks fault indicators associated with the MAC layer communications. Separate failure analytics are then generated, indexed, and correlated for different cable modems and different upstream or downstream channels.

摘要翻译： 宽带有线网络系统包括多个宽带电缆调制解调器和宽带有线调制解调器终端系统（WCMTS）。 WCMTS操作媒体访问控制（MAC）层，其通过多个不同的下行射频（RF）信道和上行RF信道与电缆调制解调器进行通信。 一个宽带故障分析管理器跟踪与MAC层通信相关的故障指示。 然后对不同的有线调制解调器和不同的上游或下游信道生成，索引和相关的独立故障分析。

公开(公告)号：US20070208932A1

公开(公告)日：2007-09-06

申请号：US11373807

申请日：2006-03-10

申请人： Mark Millet ,  Anish Thomas

发明人： Mark Millet ,  Anish Thomas

IPC分类号： H04L9/00

CPC分类号： H04L63/14 ,  H04L12/2801

摘要： A method and a system for providing a service in a network, is provided. In one embodiment, a first modem with a first address, which is identical to a second address of a second modem, requests for services in the network. A modem termination system (MTS) checks whether the first modem is a clone of the second modem. If the first modem is identified to be the clone of the second modem, then, the first modem is restricted from obtaining the requested service. However, the second modem is continuously provided services.

摘要翻译： 提供了一种用于在网络中提供服务的方法和系统。 在一个实施例中，具有与第二调制解调器的第二地址相同的第一地址的第一调制解调器请求网络中的服务。 调制解调器终端系统（MTS）检查第一个调制解调器是否是第二个调制解调器的克隆。 如果第一调制解调器被识别为第二调制解调器的克隆，则第一调制解调器被限制以获得所请求的服务。 但是，第二个调制解调器是连续提供的服务。

公开(公告)号：US07801040B1

公开(公告)日：2010-09-21

申请号：US11865520

申请日：2007-10-01

申请人： Hemant Singh ,  De Fu Li ,  Mark Millet

发明人： Hemant Singh ,  De Fu Li ,  Mark Millet

IPC分类号： H04J1/16

CPC分类号： H04J3/0682 ,  H04L12/2801

摘要： In one embodiment a technique is disclosed for facilitating communication between nodes and a head end of an access network including a head end, at least one shared access upstream channel and at least one downstream channel. A first insertion rate estimate is determined. In at least one embodiment, the first insertion rate estimate may relate to an estimated number of nodes attempting to sign-on to the access network during one or more time interval(s). In at least one embodiment, a frequency of occurrence of initial maintenance opportunities available to a first plurality of network nodes may be dynamically adjusted, for example, using data relating to the first insertion rate estimate. According to one embodiment where the access network corresponds to a cable network, the head end of the cable network may be operable to sign on at least 40,000 cable modems within a time interval of not more than 300 seconds.

摘要翻译： 在一个实施例中，公开了一种用于促进节点与包括头端，至少一个共享访问上行信道和至少一个下游信道的接入网络的前端之间的通信的技术。 确定第一插入率估计。 在至少一个实施例中，第一插入速率估计可以涉及在一个或多个时间间隔期间尝试登录到接入网络的节点的估计数量。 在至少一个实施例中，可以例如使用与第一插入率估计有关的数据来动态地调整第一多个网络节点可用的初始维护机会的发生频率。 根据访问网络对应于有线网络的一个实施例，电缆网络的头端可以用于在不超过300秒的时间间隔内登录至少40,000个电缆调制解调器。

公开(公告)号：US07058559B1

公开(公告)日：2006-06-06

申请号：US10323198

申请日：2002-12-18

申请人： Guenter Roeck ,  Joseph B. O'Donnell ,  Mark Millet

发明人： Guenter Roeck ,  Joseph B. O'Donnell ,  Mark Millet

IPC分类号： G06F13/12

CPC分类号： H04L41/145 ,  H04L41/0681

摘要： Disclosed is an apparatus and method for simulating a plurality of cable modems for testing a device, such as a head end complex. In general terms, the present invention provides a multiple cable modem simulator and techniques for setting up and executing the same. In one implementation, the multiple cable modems are simulated by simulating multiple MAC (media access control) state machines for multiple cable modems. In other embodiments, a simulator of the present invention includes a mechanism for simulating physical operating conditions of the simulated cable modems. For example, even when the simulator is located at a single test location, different distances and power levels may be simulated for the different simulated cable modems.

摘要翻译： 公开了一种用于模拟用于测试诸如头端复合体的设备的多个电缆调制解调器的装置和方法。 一般来说，本发明提供了一种多线缆调制解调器模拟器以及用于设置和执行它的技术。 在一个实现中，通过模拟多个电缆调制解调器的多个MAC（媒体访问控制）状态机来模拟多个电缆调制解调器。 在其他实施例中，本发明的模拟器包括用于模拟模拟电缆调制解调器的物理操作条件的机构。 例如，即使模拟器位于单个测试位置，也可以为不同的模拟电缆调制解调器模拟不同的距离和功率水平。

公开(公告)号：US08086233B2

公开(公告)日：2011-12-27

申请号：US12414702

申请日：2009-03-31

申请人： Mark Millet ,  Anton Okmyanskiy

发明人： Mark Millet ,  Anton Okmyanskiy

IPC分类号： H04W4/00

CPC分类号： H04W12/06 ,  H04W8/26 ,  H04W60/00 ,  H04W74/00

摘要： Techniques are provided to detect cloning of network device identity when network device is seeking registration for service in a network. A control server manages access to the network in which a plurality of network devices are configured to communicate and serve client devices. The network devices require registration with the service gateway in order to provide services. When network devices register with the service gateway, the service gateway performs local clone detection by looking for active registrations from devices with the same identity and by further communicating with the control server. The control server receives registration request messages associated with network devices seeking registration for service from gateway devices, wherein each registration request message includes data comprising an identifier of the network device that is seeking registration that is derived from data stored within a memory of the network device, and an identifier of the gateway device from which the registration request message is received. The control server evaluates the data contained in registration request messages with respect to stored data in order to determine whether a network device identity has been cloned when its registration request message contains an identifier that is already being used by at least one other network device.

摘要翻译： 当网络设备正在寻求网络中的服务注册时，提供技术来检测网络设备身份的克隆。 控制服务器管理对其中多个网络设备被配置为进行通信和服务客户​​端设备的网络的访问。 网络设备需要向服务网关注册才能提供服务。 当网络设备向服务网关注册时，服务网关通过从具有相同身份的设备查找活动注册，并进一步与控制服务器通信来执行本地克隆检测。 控制服务器接收与网络设备寻求服务注册的网络设备相关联的注册请求消息，其中每个注册请求消息包括数据，该数据包括寻求从存储在网络设备的存储器中的数据导出的注册的标识符 以及从其接收到注册请求消息的网关设备的标识符。 控制服务器根据存储的数据评估注册请求消息中包含的数据，以便当其注册请求消息包含至少一个其他网络设备已经使用的标识符时，确定是否克隆了网络设备身份。

公开(公告)号：US20100248720A1

公开(公告)日：2010-09-30

申请号：US12414702

申请日：2009-03-31

申请人： Mark Millet ,  Anton Okmyanskiy

发明人： Mark Millet ,  Anton Okmyanskiy

IPC分类号： H04W4/00

CPC分类号： H04W12/06 ,  H04W8/26 ,  H04W60/00 ,  H04W74/00

摘要： Techniques are provided to detect cloning of network device identity when network device is seeking registration for service in a network. A control server manages access to the network in which a plurality of network devices are configured to communicate and serve client devices. The network devices require registration with the service gateway in order to provide services. When network devices register with the service gateway, the service gateway performs local clone detection by looking for active registrations from devices with the same identity and by further communicating with the control server. The control server receives registration request messages associated with network devices seeking registration for service from gateway devices, wherein each registration request message includes data comprising an identifier of the network device that is seeking registration that is derived from data stored within a memory of the network device, and an identifier of the gateway device from which the registration request message is received. The control server evaluates the data contained in registration request messages with respect to stored data in order to determine whether a network device identity has been cloned when its registration request message contains an identifier that is already being used by at least one other network device.

摘要翻译： 当网络设备正在寻求网络中的服务注册时，提供技术来检测网络设备身份的克隆。 控制服务器管理对其中多个网络设备被配置为进行通信和服务客户​​端设备的网络的访问。 网络设备需要向服务网关注册才能提供服务。 当网络设备向服务网关注册时，服务网关通过从具有相同身份的设备查找活动注册，并进一步与控制服务器通信来执行本地克隆检测。 控制服务器接收与网络设备寻求服务注册的网络设备相关联的注册请求消息，其中每个注册请求消息包括数据，该数据包括寻求从存储在网络设备的存储器中的数据导出的注册的标识符 以及从其接收到注册请求消息的网关设备的标识符。 控制服务器根据存储的数据评估注册请求消息中包含的数据，以便当其注册请求消息包含至少一个其他网络设备已经使用的标识符时，确定是否克隆了网络设备身份。

公开(公告)号：US20100223650A1

公开(公告)日：2010-09-02

申请号：US12395120

申请日：2009-02-27

申请人： Mark Millet ,  Harshavardhan Parandekar

发明人： Mark Millet ,  Harshavardhan Parandekar

IPC分类号： H04N7/173 ,  G06F11/00

CPC分类号： H04N7/24 ,  H04L41/0631 ,  H04N21/238 ,  H04N21/2383 ,  H04N21/2385 ,  H04N21/2404 ,  H04N21/6118

摘要： A wideband cable network system includes multiple wideband cable modems and a Wideband Cable Modem Termination System (WCMTS). The WCMTS operates a Media Access Control (MAC) layer that communicates with the cable modems over multiple different downstream Radio Frequency (RF) channels and upstream RF channels. A wideband failure analytic manager tracks fault indicators associated with the MAC layer communications. Separate failure analytics are then generated, indexed, and correlated for different cable modems and different upstream or downstream channels.

摘要翻译： 宽带有线网络系统包括多个宽带电缆调制解调器和宽带有线调制解调器终端系统（WCMTS）。 WCMTS操作媒体访问控制（MAC）层，其通过多个不同的下行射频（RF）信道和上行RF信道与电缆调制解调器进行通信。 一个宽带故障分析管理器跟踪与MAC层通信相关的故障指示。 然后对不同的有线调制解调器和不同的上游或下游信道生成，索引和相关的独立故障分析。

公开(公告)号：US20120287784A1

公开(公告)日：2012-11-15

申请号：US13104788

申请日：2011-05-10

申请人： Kevin D. Shatzkamer ,  Rajesh S. Pazhyannur ,  Mark Millet ,  Mark Grayson ,  David E. Dukinfield ,  Eric Hamel

发明人： Kevin D. Shatzkamer ,  Rajesh S. Pazhyannur ,  Mark Millet ,  Mark Grayson ,  David E. Dukinfield ,  Eric Hamel

IPC分类号： H04W28/10

CPC分类号： H04W28/26

摘要： A method is provided in one example embodiment and includes receiving a request for a service flow over a wireless link, where the request specifies resource requirements; dynamically reserving bandwidth for the resource requirements in a backhaul link; and mapping a packet received over the wireless link to the backhaul link based on an identification element associated with the packet and the service flow.

摘要翻译： 在一个示例实施例中提供了一种方法，并且包括通过无线链路接收对服务流的请求，其中请求指定资源需求; 为回程链路中的资源需求动态保留带宽; 以及基于与所述分组和所述服务流相关联的识别元素，将通过所述无线链路接收的分组映射到所述回程链路。