公开(公告)号：US09584342B1

公开(公告)日：2017-02-28

申请号：US13115868

申请日：2011-05-25

申请人： Donald Pannell

发明人： Donald Pannell

IPC分类号： H04L12/46 ,  H04L12/54 ,  H04L12/913

CPC分类号： H04L49/354 ,  H04J3/16 ,  H04L12/28 ,  H04L12/462 ,  H04L12/56 ,  H04L45/745 ,  H04L45/7453 ,  H04L47/24 ,  H04L47/2408 ,  H04L47/245 ,  H04L47/2458 ,  H04L47/6215 ,  H04L47/70 ,  H04L47/724 ,  H04L49/201 ,  H04L49/3027 ,  H04L49/90 ,  H04L2012/5638

摘要： A packet is received via a port of the network device, and a database lookup is performed using header information of the packet. A priority associated with the packet is determined, and it is determined whether the priority is associated with a particular communication protocol that provides guaranteed delivery, defined latency, and/or defined throughput. When it is determined that the priority is associated with the particular communication protocol, i) it is determined, based on the database lookup, whether a destination address (DA) of the packet is associated with the particular communication protocol, and ii) when it is determined that the DA of the packet is associated with the particular communication protocol, the packet is prevented from egressing from ports of the network device that are operating according to the particular communication protocol with a frame priority indicator corresponding to a value reserved for the particular communication protocol.

摘要翻译： 通过网络设备的端口接收分组，并且使用分组的报头信息来执行数据库查找。 确定与分组相关联的优先级，并且确定优先级是否与提供保证传递，定义的等待时间和/或定义的吞吐量的特定通信协议相关联。 当确定优先级与特定通信协议相关联时，i）基于数据库查找确定分组的目的地地址（DA）是否与特定通信协议相关联，以及ii）何时 确定分组的DA与特定通信协议相关联，防止分组从根据特定通信协议操作的网络设备的端口出来，其中帧优先级指示符对应于为特定通信协议保留的值 通讯协议。

公开(公告)号：US07940703B2

公开(公告)日：2011-05-10

申请号：US12605741

申请日：2009-10-26

申请人： Radhika R. Roy

发明人： Radhika R. Roy

IPC分类号： H04L12/16

CPC分类号： H04L12/2801 ,  H04L2012/5605 ,  H04L2012/5606 ,  H04L2012/561 ,  H04L2012/5638 ,  H04L2012/5642 ,  H04Q11/0478

摘要： A technique for providing real-time multimedia conferencing services with guaranteed performance, in a hybrid networking environment, by interconnecting cable modem-based premises networks via hybrid fiber coaxial (HFC) access networks and an ATM wide area network is disclosed. The ATM wide area network may be divided into a plurality of access network domains and one backbone network domain to provide efficient and intelligent multimedia conferencing services. Each ATM access network domain has one cable modem server as well as access multimedia bridge server. There is only one central network server and one central multimedia bridge server within the backbone network domain. Each cable modem server located in an ATM access network domain maintains necessary information of how the cable network bandwidth is used by existing calls, and will be allocated when new multimedia conference calls are initiated, in accordance with desired priority and performance levels.

摘要翻译： 公开了一种在混合网络环境中通过混合光纤同轴（HFC）接入网络和ATM广域网互联基于电缆调制解调器的房屋网络来提供具有保证性能的实时多媒体会议业务的技术。 ATM广域网可以分为多个接入网域和一个骨干网域，以提供高效智能的多媒体会议业务。 每个ATM接入网域都有一个电缆调制解调器服务器以及接入多媒体桥服务器。 骨干网域内只有一台中央网络服务器和一台中央多媒体网桥服务器。 位于ATM接入网域中的每个电缆调制解调器服务器保持有关现有呼叫如何使用有线网络带宽的必要信息，并且将根据期望的优先级和性能水平在新的多媒体会议呼叫被启动时被分配。

公开(公告)号：US07623475B1

公开(公告)日：2009-11-24

申请号：US11352843

申请日：2006-02-13

申请人： Radhika R. Roy

发明人： Radhika R. Roy

IPC分类号： H04L12/16

CPC分类号： H04L12/2801 ,  H04L2012/5605 ,  H04L2012/5606 ,  H04L2012/561 ,  H04L2012/5638 ,  H04L2012/5642 ,  H04Q11/0478

摘要： A technique for providing real-time multimedia conferencing services with guaranteed performance, in a hybrid networking environment, by interconnecting cable modem-based premises networks via hybrid fiber coaxial (HFC) access networks and an ATM wide area network is disclosed. The ATM wide area network may be divided into a plurality of access network domains and one backbone network domain to provide efficient and intelligent multimedia conferencing services. Each ATM access network domain has one cable modem server as well as access multimedia bridge server. There is only one central network server and one central multimedia bridge server within the backbone network domain. Each cable modem server located in an ATM access network domain maintains necessary information of how the cable network bandwidth is used by existing calls, and will be allocated when new multimedia conference calls are initiated, in accordance with desired priority and performance levels.

公开(公告)号：US07414968B1

公开(公告)日：2008-08-19

申请号：US09521730

申请日：2000-03-09

申请人： Kotikalapudi Sriram ,  Yung-Terng Wang

发明人： Kotikalapudi Sriram ,  Yung-Terng Wang

IPC分类号： H04L12/26

CPC分类号： H04Q11/0478 ,  H04L2012/5638 ,  H04L2012/5656 ,  H04L2012/6481

摘要： An AAL2/SSCS packet voice system multiplexes various forms of voice-band traffic including voice packets, fax packets, and data packets into a virtual circuit (VC). This AAL2/SSCS packet voice system executes a dynamic call admission algorithm that takes into account call type in deciding whether to admit a new call to the VC. In particular, this approach takes into account different bandwidth needs for different call types. The AAL2/SSCS packet voice system also performs bit or block dropping on voice packets to mitigate the effects of traffic congestion. The bit or block dropping is done based on the packet queue fill value exceeding at least one queue threshold. Further, the AAL2/SSCS packet voice system also dynamically varies a queue threshold as a function of capacity.

摘要翻译： AAL2 / SSCS分组语音系统将包括语音分组，传真分组和数据分组在内的各种语音频带业务复用到虚拟电路（VC）中。 该AAL2 / SSCS分组语音系统执行动态呼叫准入算法，该算法在决定是否允许对VC的新呼叫时考虑呼叫类型。 特别地，这种方法考虑到不同呼叫类型的不同带宽需求。 AAL2 / SSCS分组语音系统还对语音分组进行比特或阻塞，以减轻交通拥堵的影响。 基于分组队列填充值超过至少一个队列阈值来完成比特或块丢弃。 此外，AAL2 / SSCS分组语音系统还动态地改变作为容量的函数的队列阈值。

公开(公告)号：US07391783B2

公开(公告)日：2008-06-24

申请号：US10615925

申请日：2003-07-10

申请人： Tatsuya Jimmei ,  Shigeo Matsuzawa

发明人： Tatsuya Jimmei ,  Shigeo Matsuzawa

IPC分类号： H04L12/28 ,  H04J3/16

CPC分类号： H04L45/10 ,  H04L45/40 ,  H04L49/251 ,  H04L49/3009 ,  H04L49/602 ,  H04L2012/5619 ,  H04L2012/5638 ,  H04Q11/0478

摘要： A set-up scheme for a cut-through connection in a network system capable of realizing a high throughput, low latency internetwork communication efficiently under an internet environment. A network node checks source/destination information of the transport layer and/or a source/destination information of the network layer of a received packet, and if the checked information satisfies a prescribed condition, determines the packet to be a trigger. Then, the network node instructs another node capable of initiating a set-up operation, which may be the network node itself, to initiate the set-up of the cut-through connection for traffic corresponding to the trigger packet.

摘要翻译： 一种能够在互联网环境下有效实现高吞吐量，低延迟互联网络通信的网络系统中的直通连接的设置方案。 网络节点检查传输层的源/目的地信息和/或接收到的分组的网络层的源/目的地信息，并且如果所检查的信息满足规定条件，则将分组确定为触发。 然后，网络节点指示能够启动可能是网络节点本身的建立操作的另一个节点针对与触发分组相对应的业务启动对直通连接的建立。

公开(公告)号：US07292580B2

公开(公告)日：2007-11-06

申请号：US10325700

申请日：2002-12-18

申请人： Gopalakrishnan Ramamurthy ,  Gopalakrishnan Meempat ,  William J. Dally

发明人： Gopalakrishnan Ramamurthy ,  Gopalakrishnan Meempat ,  William J. Dally

IPC分类号： H04L12/56

CPC分类号： H04L12/5601 ,  H04L2012/5629 ,  H04L2012/5638 ,  H04L2012/5651 ,  H04L2012/5679 ,  H04L2012/5681

摘要： Data cells of plural classes are transferred from input ports to output ports through a switch by storing the cells at each input port in class-specific virtual output queues (VOQ) within sets of VOQs associated with output ports, and providing credits to VOQs according to class-associated guaranteed bandwidths. When a cell is received at a VOQ having credits, a high-priority request for transfer is generated. If a cell is received at a VOQ that does not have any available credits, a low-priority request for transfer is generated. In response to requests, grants are issued to VOQ sets without regard to class, high-priority requests being favored over low-priority requests. When a grant is received for a particular VOQ set, an arbitrator selects a VOQ from the set, giving priority to VOQs having credits over VOQs without credits, and a cell from the selected VOQ is transferred. Requests generated from all input ports are forwarded to a central scheduler associated with a switch fabric slice, the central scheduler issuing the grants. The switch fabric may comprise multiple slices and a central scheduler, across which requests may be distributed in parallel, for example, the switch fabric slices being selected in a fixed order. While all high-priority requests are granted, low priority requests may be granted by the central scheduler according to a weighted fair share policy.

摘要翻译： 将多个类的数据单元通过交换机从输入端口传送到输出端口，通过将输出端口中的单元存储在与输出端口相关联的VOQ集合内的类特定虚拟输出队列（VOQ）中，并根据 类相关保证带宽。 当在具有信用的VOQ接收到信元时，产生高优先级的转移请求。 如果在没有任何可用信用的VOQ接收到信元，则生成低优先级的转移请求。 响应请求，向VOQ集发出授权，而不考虑低优先级请求的类别，优先级高的请求。 当针对特定VOQ集合接收到授权时，仲裁者从该集合中选择一个VOQ，优先考虑具有不带信用的VOQ的信用的VOQ，并且从所选择的VOQ中传送一个信元。 从所有输入端口产生的请求被转发到与交换机结构切片相关联的中央调度器，中央调度器发出授权。 交换结构可以包括多个片段和中央调度器，跨平台地分发请求，例如，以固定顺序选择交换结构片段。 当所有高优先级请求被授予时，中央调度器可以根据加权公平共享策略授予低优先级请求。

公开(公告)号：US07120114B1

公开(公告)日：2006-10-10

申请号：US09615719

申请日：2000-07-13

申请人： Rei Miyamoto

发明人： Rei Miyamoto

IPC分类号： H01L12/26

CPC分类号： H04L47/24 ,  H04L12/5601 ,  H04L12/5602 ,  H04L47/15 ,  H04L47/70 ,  H04L47/805 ,  H04L47/822 ,  H04L49/105 ,  H04L2012/5629 ,  H04L2012/5638 ,  H04L2012/5679

摘要： A call admission control technique allowing flexible and reliable call admissions at an ATM switch in the case of an ATM network including both QoS-specified and QoS-unspecified virtual connections is disclosed. In the case where a QoS (Quality of Service) specified connection request occurs, an estimated bandwidth is calculated which is to be assigned to an existing QoS-unspecified traffic on the link associated with the QoS-specified connection request. A call control processor of the ATM switch determines whether the QoS-specified connection request is accepted, depending on whether a requested bandwidth is smaller than an available bandwidth that is obtained by subtracting an assigned bandwidth and the estimated bandwidth from a full bandwidth of the link.

公开(公告)号：US07046637B2

公开(公告)日：2006-05-16

申请号：US09880027

申请日：2001-06-14

申请人： Radhika R. Roy

发明人： Radhika R. Roy

IPC分类号： H04L12/16

CPC分类号： H04L12/2801 ,  H04L2012/5605 ,  H04L2012/5606 ,  H04L2012/561 ,  H04L2012/5638 ,  H04L2012/5642 ,  H04Q11/0478

摘要： A technique for providing real-time multimedia conferencing services with guaranteed performance, in a hybrid networking environment, by interconnecting cable modem-based premises networks via hybrid fiber coaxial (HFC) access networks and an ATM wide area network is disclosed. The ATM wide area network may be divided into a plurality of access network domains and one backbone network domain to provide efficient and intelligent multimedia conferencing services. Each ATM access network domain has one cable modem server as well as access multimedia bridge server. There is only one central network server and one central multimedia bridge server within the backbone network domain. Each cable modem server located in an ATM access network domain maintains necessary information of how the cable network bandwidth is used by existing calls, and will be allocated when new multimedia conference calls are initiated, in accordance with desired priority and performance levels.

公开(公告)号：US06967927B1

公开(公告)日：2005-11-22

申请号：US09717735

申请日：2000-11-21

申请人： Olivier Dugeon ,  Fabrice Guillemin ,  Christophe Mangin

发明人： Olivier Dugeon ,  Fabrice Guillemin ,  Christophe Mangin

IPC分类号： H04L12/70 ,  H04Q11/04 ,  H04J1/16 ,  H04J3/16 ,  H04L12/28

CPC分类号： H04Q11/0478 ,  H04L2012/563 ,  H04L2012/5634 ,  H04L2012/5638 ,  H04L2012/5667

摘要： Data flows generated in accordance with a connected mode protocol and formatted in packets in accordance with a non-connected mode protocol are transmitted via an ATM network. A set of virtual circuits of the ATM network is assigned in advance to each pair of access points of the ATM network, without allocating transmission rate resources to them. When an access point receives a request, formulated in accordance with the connected mode protocol, to establish a connection between a source address and a destination address accessible via another access point of the ATM network, an available virtual circuit is selected from the set assigned to this pair of access points and a resource management cell containing a request to activate the virtual circuit is transmitted on the selected virtual circuit. When this cell is received by a node of the ATM network located on the selected virtual circuit, a transmission rate resource is allocated, if it is available, to the selected virtual circuit.

摘要翻译： 根据连接模式协议产生的数据流，并根据非连接模式协议以分组格式化，经由ATM网络传输。 ATM网络的一组虚拟电路预先分配给ATM网络的每对接入点，而不向其分配传输速率资源。 当接入点接收到根据连接的模式协议制定的请求时，为了建立可通过ATM网络的另一个接入点访问的源地址和目的地地址之间的连接，可以从分配给 在所选择的虚拟电路上发送这对接入点和包含激活虚拟电路的请求的资源管理单元。 当该小区被位于所选择的虚拟电路上的ATM网络的节点接收时，如果可用，则向所选择的虚拟电路分配传输速率资源。

公开(公告)号：US20050226247A1

公开(公告)日：2005-10-13

申请号：US11099413

申请日：2005-04-04

申请人： Garth Brown

发明人： Garth Brown

IPC分类号： H04L12/28 ,  H04L12/56 ,  H04L12/66

CPC分类号： H04L12/5601 ,  H04L12/66 ,  H04L2012/5617 ,  H04L2012/5621 ,  H04L2012/5638 ,  H04L2012/5665 ,  H04L2012/5671

摘要： A managed private network (“MPN”) system for interconnecting enterprise entities to subscriber entities. The MPN system uses the ATM protocol and segregates data for an enterprise on to virtual connections dedicated to the enterprise. Each enterprise may have a single connection to the MPN system. The MPN system may forward data to various service providers through which subscriber entities may be connected to the MPN system. Thus, the enterprise entities need not have a separate physical connection to each service provider. Also, the MPN system can offer services (e.g., archival storage) to the enterprise entities. The MPN system ensures that data for one enterprise will not be intermingled with the data of another enterprise.

摘要翻译： 用于将企业实体与订户实体互连的管理专用网络（“MPN”）系统。 MPN系统使用ATM协议并将企业的数据隔离到专用于企业的虚拟连接。 每个企业可能与MPN系统有单一连接。 MPN系统可以将数据转发到各个服务提供商，用户实体可以通过该服务提供商连接到MPN系统。 因此，企业实体不需要与每个服务提供商具有单独的物理连接。 此外，MPN系统可以向企业实体提供服务（例如存档存储）。 MPN系统确保一个企业的数据不会与另一个企业的数据混合。