公开(公告)号：US08295303B2

公开(公告)日：2012-10-23

申请号：US10109643

申请日：2002-04-01

申请人： Robert L. Demaria ,  Colleen M. Green ,  Donald B. Roberts

发明人： Robert L. Demaria ,  Colleen M. Green ,  Donald B. Roberts

IPC分类号： H04J3/22 ,  H04L12/28 ,  H04L12/66

CPC分类号： H04L12/5601 ,  H04L12/2856 ,  H04L12/2883 ,  H04L12/4633 ,  H04L2012/5606 ,  H04L2012/5618 ,  H04L2012/567

摘要： A system and method for transmitting Frame Relay based communication over an ATM based network that includes a DSL link are disclosed. The Frame Relay based communication is mapped into ATM cells at a Digital Subscriber Line Access Multiplexer (DSLAM). The mapping of the Frame Relay frames into ATM cells is carried in accordance with transparent mode or translation mode functionality provided in the DSLAM. The Frame Relay data may be mapped into the ATM cells pursuant to FRF.5, FRF.8, FRF.8.1, or other similar standards. The system and method may enable transparent propagation of the Frame Relay data across the DSL/ATM network, for receipt on the other end of the network by a Frame Relay compatible switch, or an ATM compatible switch.

摘要翻译： 公开了一种用于通过基于ATM的网络发送基于帧中继的通信的系统和方法，该网络包括DSL链路。 基于帧中继的通信被映射到数字用户线接入多路复用器（DSLAM）的ATM信元。 根据DSLAM中提供的透明模式或转换模式功能，将帧中继帧映射到ATM信元中。 帧中继数据可以根据FRF.5，FRF.8，FRF.8.1或其他类似标准映射到ATM信元。 该系统和方法可以实现通过DSL / ATM网络的帧中继数据的透明传播，以便通过帧中继兼容交换机或ATM兼容交换机在网络的另一端上接收。

公开(公告)号：US06963572B1

公开(公告)日：2005-11-08

申请号：US09426791

申请日：1999-10-22

申请人： David Carr ,  Paul Nadj ,  Sandra Stark

发明人： David Carr ,  Paul Nadj ,  Sandra Stark

IPC分类号： H04L12/56 ,  H04Q11/04 ,  H04L12/28

CPC分类号： H04L49/3081 ,  H04L2012/5652 ,  H04L2012/567 ,  H04Q11/0478

摘要： A method and apparatus for segmenting and forwarding data packets received in a communication switch is presented. The method begins by receiving a packet that includes a destination that determines forwarding parameters. As the packet is being received, segmentation cells are created from portions of the packet received where each segmentation cell is provided to a switching fabric as soon as creation of the segmentation cell is completed. When an end portion of the packet is received, verification of proper receipt of the packet is performed. When it is determined that the packet has been received successfully, a verification data set is generated based on segmentation cells that have been utilized to forward the packet. The verification data set is then included in a final segmentation cell that is provided to the switching fabric. Such a verification data set can then be used by an egress line card that receives the segmentation cells to verify proper receipt of the segmentation cells. If it is determined that the packet has not been successfully received, a purging data set is generated instead of the verification data set. Such a purging data set is then included in the final segmentation cell that is provided to the switching fabric, where the purging data set preferably causes any egress line card to purge the corrupted packet rather than forwarding it.

摘要翻译： 提出了一种在通信交换机中接收数据包的分段和转发的方法和装置。 该方法通过接收包含确定转发参数的目的地的分组开始。 当分组被接收时，一旦分割单元的创建完成，就从所接收的分组的部分创建分段单元，其中每个分割单元被提供给交换结构。 当接收到分组的结束部分时，执行对分组的适当接收的验证。 当确定分组已被成功接收时，基于已经用于转发分组的分段单元生成验证数据集。 验证数据集然后被包括在提供给交换结构的最终分段单元中。 然后可以由接收分段单元的出口线卡使用这样的验证数据集来验证分段单元的适当接收。 如果确定分组未被成功接收，则产生清除数据集而不是验证数据集。 然后将这样的清除数据集合包括在提供给交换结构的最终分段单元中，其中清除数据集优选地使任何出口线卡清除损坏的分组，而不是转发它。

公开(公告)号：US06463477B1

公开(公告)日：2002-10-08

申请号：US08722512

申请日：1996-09-27

申请人： Michael Douglas Fontenot

发明人： Michael Douglas Fontenot

IPC分类号： G06F1516

CPC分类号： H04Q11/0478 ,  H04L2012/5658 ,  H04L2012/567

摘要： A method, system and computer program product is provided which automatically detects multiprotocol encapsulation in a protocol data unit (PDU) to determine whether a Frame Relay/ATM service interworking function should operate in translation or transparent mode. A multiprotocol encapsulation detection module first reads a control field value in a received PDU. The control field value is then compared to a predetermined value representative of the presence of multiprotocol encapsulation in the PDU. An indication of the detected presence of multiprotocol encapsulation in the PDU is then provided when the control field value equals the predetermined value. An FR/ATM service interworking function module is then operated in translation mode when multiprotocol encapsulation has been detected and indicated. Otherwise, the FR/ATM service interworking function module is operated in transparent mode when multiprotocol encapsulation has not been detected.

摘要翻译： 提供了一种方法，系统和计算机程序产品，其自动检测协议数据单元（PDU）中的多协议封装，以确定帧中继/ ATM服务互通功能是否应以翻译或透明模式运行。 多协议封装检测模块首先读取接收到的PDU中的控制字段值。 然后将控制字段值与表示PDU中存在多协议封装的预定值进行比较。 然后当控制字段值等于预定值时，提供检测到PDU中多协议封装的存在的指示。 当检测并指示多协议封装时，FR / ATM服务互通功能模块随后以翻译模式运行。 否则，当未检测到多协议封装时，FR / ATM业务互通功能模块以透明模式运行。

公开(公告)号：US06400717B1

公开(公告)日：2002-06-04

申请号：US09174030

申请日：1998-10-16

申请人： Michael J. Von Ahnen ,  Sudhindra P. Herle

发明人： Michael J. Von Ahnen ,  Sudhindra P. Herle

IPC分类号： H04L1228

CPC分类号： G06F15/177 ,  G06F9/4405 ,  H04L12/12 ,  H04L49/606 ,  H04L2012/567 ,  Y02D50/40

摘要： There is disclosed, for use in a data processing device containing a master processor and a slave processor, a mode selection circuit capable of selecting the operating mode of the slave processor. The mode selection circuit comprises a mode determination circuit capable of determining the current operating mode of the master processor and a mode control circuit capable of causing the slave processor to operate in a selected operating mode in response to the current operating mode of the master processor. The mode selection circuit causes the slave processor to boot up to a test program stored in a ROM coupled to the slave processor whenever the master processor is in a test mode. If the master processor is in a system application mode, the mode selection circuit causes the slave processor to execute a system application program stored in a RAM coupled to the slave processor.

摘要翻译： 公开了用于包含主处理器和从处理器的数据处理装置中的能够选择从属处理器的操作模式的模式选择电路。 模式选择电路包括能够确定主处理器的当前操作模式的模式确定电路和能够使从属处理器响应于主处理器的当前操作模式在所选操作模式下操作的模式控制电路。 只要主处理器处于测试模式，模式选择电路使得从属处理器引导到存储在耦合到从属处理器的ROM中的测试程序。 如果主处理器处于系统应用模式，则模式选择电路使从属处理器执行存储在耦合到从属处理器的RAM中的系统应用程序。

公开(公告)号：US20020024945A1

公开(公告)日：2002-02-28

申请号：US09825651

申请日：2001-04-04

发明人： Seyhan Civanlar ,  Don Richard Coffield ,  William J. Leighton III ,  James J. Mansell ,  Vikram R. Saksena

IPC分类号： H04L012/56

CPC分类号： H04L61/1529 ,  H04L12/2854 ,  H04L12/6418 ,  H04L12/66 ,  H04L29/06 ,  H04L29/06027 ,  H04L29/12009 ,  H04L29/12018 ,  H04L29/12094 ,  H04L29/12349 ,  H04L61/10 ,  H04L61/2507 ,  H04L65/1026 ,  H04L65/1036 ,  H04L65/1069 ,  H04L69/08 ,  H04L69/16 ,  H04L69/169 ,  H04L2012/5618 ,  H04L2012/5619 ,  H04L2012/563 ,  H04L2012/5645 ,  H04L2012/5652 ,  H04L2012/5667 ,  H04L2012/567 ,  H04L2012/6472 ,  H04L2012/6481 ,  H04M7/125 ,  H04M7/126 ,  H04Q3/0025 ,  H04Q3/0045 ,  H04Q11/0478

摘要： In one embodiment of the invention, an apparatus is provided for establishing a communication session between first and second terminals in communication over a plurality of networks that employ differing transmission standards. The plurality of networks are selected from among a circuit switched network (e.g., a telephony network), a connectionless packet switched network (e.g., the Internet) and a connection-oriented packet switched network (e.g., an ATM or frame relay network). The apparatus includes a call set-up translator for translating among call set-up protocols associated with the circuit switched network, the connectionless packet switched network and the connection-oriented packet switched network. An encoding format translator is provided for translating among encoding protocols associated with the circuit switched network, the connectionless packet switched network and the connection-oriented packet switched network. Also provided is an address database for storing a plurality of addresses in different formats for each registered terminal, which includes the first and second terminals. The apparatus also includes a session manager for storing control information relating to the first and second terminals. The control information includes an identification of the first and second terminals that participate in the communication session.

摘要翻译： 在本发明的一个实施例中，提供一种用于在采用不同传输标准的多个网络上进行通信的第一和第二终端之间建立通信会话的装置。 多个网络从电路交换网络（例如，电话网络），无连接分组交换网络（例如，因特网）和面向连接的分组交换网络（例如，ATM或帧中继网络）中选择。 该装置包括用于转换与电路交换网络相关联的呼叫建立协议，无连接分组交换网络和面向连接的分组交换网络的呼叫建立转换器。 提供了一种编码格式转换器，用于在与电路交换网络，无连接分组交换网络和面向连接的分组交换网络相关联的编码协议之间进行翻译。 还提供了一种地址数据库，用于存储包括第一和第二终端的每个注册终端的不同格式的多个地址。 该装置还包括会话管理器，用于存储与第一和第二终端有关的控制信息。 控制信息包括参与通信会话的第一和第二终端的标识。

公开(公告)号：US06298059B1

公开(公告)日：2001-10-02

申请号：US09219437

申请日：1998-12-23

申请人： Marc St-Amand ,  Yvon Gilbert

发明人： Marc St-Amand ,  Yvon Gilbert

IPC分类号： H04L1228

CPC分类号： H04L49/606 ,  H04L2012/563 ,  H04L2012/5651 ,  H04L2012/567 ,  H04Q11/0478

摘要： A system and method for interworking between FR (frame relay) and ATM (asynchronous transfer mode) using permanent virtual circuits. An ATM VCC between two interworking functions is dedicated to FR LMI signalling traffic, while the FR data traffic is carried by ATM VCCs which do not carry any FR LMI signalling traffic. The FR data traffic of a given FR DLCI is carried by an ATM VCC having a service category and bandwidth parameters which reflect the transfer priority and bandwidth needs of the particular FR DLCI. This allows a high priority to be assigned to all LMI traffic carried over the ATM network independent of the priority assigned to the FR data traffic.

摘要翻译： 一种使用永久虚拟电路在FR（帧中继）和ATM（异步传输模式）之间进行互通的系统和方法。 两个互通功能之间的ATM VCC专用于FR LMI信令业务，而FR数据业务由不携带任何FR LMI信令业务的ATM VCC承载。 给定FR DLCI的FR数据业务由具有反映特定FR DLCI的传输优先级和带宽需求的业务类别和带宽参数的ATM VCC承载。 这允许将高优先级分配给通过ATM网络携带的所有LMI业务，而不依赖于分配给FR数据业务的优先级。

公开(公告)号：US06181688B2

公开(公告)日：2001-01-30

申请号：US09283568

申请日：1999-03-31

申请人： Shaji Thomas ,  Neil D. Salisbury ,  Paul R. Frazier ,  William C. Tucker ,  Michael H. Jette

发明人： Shaji Thomas ,  Neil D. Salisbury ,  Paul R. Frazier ,  William C. Tucker ,  Michael H. Jette

IPC分类号： H04L1228

CPC分类号： H04L49/606 ,  H04L49/3081 ,  H04L2012/567 ,  H04L2012/5672 ,  H04Q11/0478

摘要： A telecommunications network (12) includes a digital cross-connect system (10) that receives frame relay information carried in individual DS-0 signals over DS-0 links (14) and/or multiple DS-0 signals over FT-1 links (16). The digital cross-connect system (10) includes a cross-connect matrix (44) that consolidates DS-0 signals into DS-1 signals. The digital cross-connect system (10) further includes a frame groomer (40) that extracts frames from each DS-0 signal for consolidation into a frame groomed consolidated circuit. The frame groomed consolidated circuit is transferred to an edge switch (24) in DS-1 signals through the frame groomer (40) and the cross-connect matrix (44).

摘要翻译： 电信网络（12）包括数字交叉连接系统（10），其通过DS-0链路（14）和/或多个DS-0信号通过FT-1链路（14）接收在各个DS-0信号中承载的帧中继信息 16）。 数字交叉连接系统（10）包括将DS-0信号合并成DS-1信号的交叉连接矩阵（44）。 数字交叉连接系统（10）还包括从每个DS-0信号提取帧以将其整合到帧整合的整合电路中的帧凹进（40）。 框架整合的电路通过框架凹槽（40）和交叉连接矩阵（44）传送到DS-1信号的边缘开关（24）。

公开(公告)号：US6094419A

公开(公告)日：2000-07-25

申请号：US863500

申请日：1997-06-02

申请人： Akitsugu Ohyoshi ,  Hiroshi Takahashi

发明人： Akitsugu Ohyoshi ,  Hiroshi Takahashi

IPC分类号： H04Q3/00 ,  H04L12/813 ,  H04L12/823 ,  H04Q11/04 ,  H04L12/26 ,  H04L12/28

CPC分类号： H04L12/5602 ,  H04Q11/0478 ,  H04L2012/5636 ,  H04L2012/567

摘要： A traffic control method can prevent that the number of cells transmitted to an ATM network exceeds a maximum transmission rate. When a frame F is transmitted from a frame relay network FR1 to an IWF, a traffic control part included in the frame relay network FR1 measures the transmission data quantity for a measuring time in a DLCI connecting the frame relay network FR1 and the IWF. Successively, the traffic control part detects a traffic restrictive level corresponding to the measured transmission data quantity. Then, the traffic restrictive process corresponding to the restrictive level is performed, and the frame transmission is controlled by the transmitted terminal of the frame F. Thus, it is prevented that the number of cells transmitted to the ATM network exceeds a determined maximum transmission rate.

摘要翻译： 流量控制方法可以防止发送到ATM网络的小区的数量超过最大传输速率。 当帧F从帧中继网络FR1发送到IWF时，包括在帧中继网络FR1中的业务控制部分测量连接帧中继网络FR1和IWF的DLCI中的测量时间的发送数据量。 接下来，交通控制部分检测与所测量的发送数据量对应的交通限制级别。 然后，执行与限制级别对应的流量限制处理，并且由帧F的发送终端控制帧发送。因此，防止发送到ATM网络的小区数超过确定的最大传输速率 。

公开(公告)号：US6046999A

公开(公告)日：2000-04-04

申请号：US28830

申请日：1998-02-13

申请人： Kazuho Miki ,  Masahiro Takatori ,  Akihiko Takase ,  Masaru Murakami ,  Koji Wakayama ,  Tetsuro Yoshimoto ,  Masao Kunimoto

发明人： Kazuho Miki ,  Masahiro Takatori ,  Akihiko Takase ,  Masaru Murakami ,  Koji Wakayama ,  Tetsuro Yoshimoto ,  Masao Kunimoto

IPC分类号： H04J3/04 ,  H04L12/28 ,  H04L12/56 ,  H04L12/66

CPC分类号： H04L49/25 ,  H04L12/5601 ,  H04L49/3072 ,  H04L49/602 ,  H04L49/606 ,  H04L2012/5667 ,  H04L2012/567

摘要： A router apparatus 5 is provided with an ATM switch, an IP controller for performing routing control as a controller for layer 3, plural kinds of interfaces which are individually provided to plural transmission paths in which various communications are performed, and a cell multiplexing/demultiplexing unit, and manages the cell communications between respective parts on the basis of identification information. The input packet is subjected to IP processing in an interface to be converted to a cell in a common format, and the cell is serially multiplexed with a cell from another interface on a cell basis, and transmitted to the ATM switch at the cell multiplexing/demultiplexing unit. Each interface and each cell multiplexing/demultiplexing unit sets and switches the identification information for the header portion of the packet and the cell to be communicated by using a table in which the corresponding relationship of the identification information is registered.

公开(公告)号：US5963541A

公开(公告)日：1999-10-05

申请号：US552485

申请日：1995-11-09

申请人： Hisashi Koga ,  Takashi Sugino ,  Toshiaki Ohishi

发明人： Hisashi Koga ,  Takashi Sugino ,  Toshiaki Ohishi

IPC分类号： H04Q3/00 ,  H04L12/801 ,  H04L12/803 ,  H04L12/819 ,  H04L12/861 ,  H04L12/911 ,  H04Q11/04 ,  H04J3/14

CPC分类号： H04Q11/0478 ,  H04L2012/5618 ,  H04L2012/5632 ,  H04L2012/5636 ,  H04L2012/567 ,  H04L2012/5678

摘要： A time division allocating unit distributes a plurality of data links at a plurality of time division timings into which a predetermined period is divided. A communicable remaining data supplying process executing unit executes a supplying process of the remaining data for a data link, which allocated by the time division allocating unit at each time division timing, only when a communicable data supplying process commanding unit commands an execution of the supplying process of the communicable remaining data for the allocated data link.

摘要翻译： 时分分配单元在分割预定时段的多个时分定时分配多个数据链路。 可通信的剩余数据提供处理执行单元仅在通信数据提供处理指令单元命令执行供应时执行由时间分配单元在每个分时定时分配的数据链路的剩余数据的提供处理 处理分配的数据链路的可传送的剩余数据。