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1. 发明专利

JP2007006540A Method and apparatus for switching atm, tdm, and packet data via a single communications switch 审中-公开
标题翻译：用于通过单个通信交换机切换ATM，TDM和分组数据的方法和装置
公开(公告)号：JP2007006540A
公开(公告)日：2007-01-11
申请号：JP2006276126
申请日：2006-10-10
申请人： Transwitch Corp , トランスウィッチコーポレイション
发明人： ROY SUBHASH C , DAS SANTANU , UPP DANIEL C , LIPP WILLIAM B , VIJ JITENDER K , RENAULT MICHAEL M , CARTER FREDERICK R , RAMCHANDANI RAJEN S , BENOIT STEVEN E , TOEBES DAVID K
IPC分类号： H04J3/00 , H04L20060101 , H04L12/54 , H04L12/64 , H04L12/70 , H04L12/931 , H04L29/06 , H04Q3/52 , H04Q11/04
CPC分类号： H04J3/1617 , H04L12/5601 , H04L12/6402 , H04L49/606 , H04L2012/5627 , H04L2012/6413 , H04Q11/0478
摘要： PROBLEM TO BE SOLVED: To provide a network element capable of switching all TDMs, ATMs, and variable length packet traffic, via the same switching mechanism. SOLUTION: A plurality of switching elements each comprising a plurality of port processors, each having a network interface and a plurality of ports connected to the port processors, are provided. Each port processor has first and second switching element interfaces for connecting to one port of each switching element, and an automatic means for redirecting traffic to any of the first and second switch element interfaces, when the switch is busy, or first and second switching element interfaces for connecting to two ports of one switching element, and an automatic means for redirecting traffic to any of the first and second switching element interfaces, when the switch is malfunctioning or is busy. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供能够通过相同的切换机制切换所有TDM，ATM和可变长度分组业务的网元。解决方案：提供多个开关元件，每个开关元件包括多个端口处理器，每个端口处理器具有网络接口和连接到端口处理器的多个端口。每个端口处理器具有用于连接到每个交换单元的一个端口的第一和第二交换单元接口，以及当交换机占线时将业务重定向到第一和第二交换单元接口中的任一个的自动装置，或第一和第二开关元件用于连接到一个交换单元的两个端口的接口，以及当交换机发生故障或正在忙时将业务重定向到任何第一和第二交换单元接口的自动装置。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2007020226A Methods and apparatus for switching atm, tdm, and packet data through single communications switch 有权
标题翻译：用于通过单通道交换机切换ATM，TDM和分组数据的方法和装置
公开(公告)号：JP2007020226A
公开(公告)日：2007-01-25
申请号：JP2006276125
申请日：2006-10-10
申请人： Transwitch Corp , トランスウィッチコーポレイション
发明人： ROY SUBHASH C , DAS SANTANU , UPP DANIEL C , LIPP WILLIAM B , VIJ JITENDER K , RENAULT MICHAEL M , CARTER FREDERICK R , RAMCHANDANI RAJEN S , BENOIT STEVEN E , TOEBES DAVID K
IPC分类号： H04J3/00 , H04L12/64 , H04L20060101 , H04L12/54 , H04L12/70 , H04L12/931 , H04L29/06 , H04Q3/52 , H04Q11/04
CPC分类号： H04J3/1617 , H04L12/5601 , H04L12/6402 , H04L49/606 , H04L2012/5627 , H04L2012/6413 , H04Q11/0478
摘要： PROBLEM TO BE SOLVED: To determine a bandwidth for TDM, ATM and variable length packet traffic. SOLUTION: An iterative data frame including a plurality of rows is generated, requesting is performed upon a space in a row N+1 between rows N, and the request is permitted through an out-of-band link, thereby determining a bandwidth in a communications switch. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：确定TDM，ATM和可变长度数据包流量的带宽。解决方案：生成包括多行的迭代数据帧，根据行N之间的行N + 1中的空格执行请求，并且通过带外链接允许请求，从而确定通信交换机中的带宽。版权所有（C）2007，JPO＆INPIT

3. 发明申请

WO03091857A9 EFFICIENT PACKET PROCESSING PIPELINE DEVICE AND METHOD 审中-公开
标题翻译：高效包装处理管道装置及方法
公开(公告)号：WO03091857A9
公开(公告)日：2007-12-13
申请号：PCT/US0314259
申请日：2003-04-25
申请人： TRANSWITCH CORP , DEFORCHE KOEN , VERBRUGGEN GEERT , DE COSTER LUC , WOUTERS JOHAN
发明人： DEFORCHE KOEN , VERBRUGGEN GEERT , DE COSTER LUC , WOUTERS JOHAN
IPC分类号： H04L12/701 , H04L12/935
CPC分类号： H04L49/3072 , H04L45/00 , H04L49/30 , H04L49/3063
摘要： A packet processing apparatus (10) for processing data packets for use in a packet switched network includes means for receiving a packet, means for adding administrative information to a first data portion of the packet, the administrative information includes at least an indication of at least one process to be applied to the first data portion, and a plurality of parallel pipelines, each pipeline comprising at least one processing unit (4), wherein the processing unit carries out the process on the first data portion indicated by the administrative information to provide a modified first data portion. According to a method, the tasks performed by each processing unit are organized into a plurality of functions such that there are substantially only function calls and no interfunction calls and that at the termination of each function called by the function call for one processing unit, the only context is a first data portion.
摘要翻译：用于处理分组交换网络中使用的数据分组的分组处理装置（10）包括用于接收分组的装置，用于将管理信息添加到分组的第一数据部分的装置，所述管理信息至少包括至少一个指示一个应用于第一数据部分的处理和多个并行管线，每个流水线包括至少一个处理单元（4），其中处理单元对由管理信息指示的第一数据部分执行处理以提供修改后的第一数据部分。根据一种方法，由每个处理单元执行的任务被组织成多个功能，使得仅基本上只有功能调用和无功能调用，并且在由一个处理单元的功能调用所调用的每个功能终止时，只有上下文是第一个数据部分。

4. 发明申请

WO2007024727B1 MULTIPACKET INTERFACE 审中-公开
标题翻译：多路接口
公开(公告)号：WO2007024727B1
公开(公告)日：2008-01-03
申请号：PCT/US2006032428
申请日：2006-08-21
申请人： TRANSWITCH CORP , MUKHOPADHYAY SUVHASIS , BHATTACHARYA SANTANU , KUMAR VIKAS , SINGH KUMAR SHAKTI , DUTTA ARUNAVA , SRINIVASAN DESIKAN
发明人： MUKHOPADHYAY SUVHASIS , BHATTACHARYA SANTANU , KUMAR VIKAS , SINGH KUMAR SHAKTI , DUTTA ARUNAVA , SRINIVASAN DESIKAN
IPC分类号： H04J3/16
CPC分类号： H04J3/047 , H04J3/1617 , H04J2203/0025 , H04Q2213/13003 , H04Q2213/13103 , H04Q2213/13106 , H04Q2213/13178 , H04Q2213/13214 , H04Q2213/1332 , H04Q2213/13322
摘要： A multipacket interface is easily adaptable to any of several link layer interfaces via a simple adaptation layer which can be provided on an ASIC or FPGA. The interface according to the invention includes (in both transmit and receive directions) a multi-bit data signal, a multi-bit channel identifier, a packet abort/error signal, a start-of-frame signal, an end-of-frame signal, a data valid signal, and an interface clock, In the transmit direction, the interface also includes a data request signal and a multi-bit PDU length indicator signal. In the receive direction the interface also includes a server signal failure signal.
摘要翻译：多层接口可以通过可在ASIC或FPGA上提供的简单适配层轻松适应几个链路层接口中的任何一个。根据本发明的接口包括（在发送和接收方向上）多位数据信号，多位信道标识符，分组中止/错误信号，帧起始信号，帧结束信号，数据有效信号和接口时钟。在发送方向上，接口还包括数据请求信号和多位PDU长度指示符信号。在接收方向，接口还包括服务器信号故障信号。

5. 发明申请

WO2006023805A2 PAUSE FRAME RECONCILIATION IN END-TO-END AND LOCAL FLOW CONTROL FOR ETHERNET OVER SONET 审中-公开
标题翻译：针对以太网进行端到端和本地流量控制的暂停帧重构
公开(公告)号：WO2006023805A2
公开(公告)日：2006-03-02
申请号：PCT/US2005029678
申请日：2005-08-22
申请人： TRANSWITCH CORP
发明人： MUKHOPADHYAY SUVHASIS , SINGER NEIL , SHANKAR RAMAKRISHNAN , YADAV PUSHKAL
CPC分类号： H04L12/4604
摘要： Whenever a PAUSE frame is generated locally, a pause refresh timer is set with the pause parameter from the PAUSE frame. PAUSE frames which are received from a remote data sink are trapped and the value of the pause parameter is evaluated. If the value is smaller than the current pause refresh timer value, the pause frame is discarded. If the value is equal to or larger than the current pause refresh timer value, the PAUSE frame is passed on to the data source and an end-to-end flow control (EEFC) timer is set with the pause parameter received from the remote data sink. While the EEFC timer is counting down, locally generated PAUSE frames having a pause parameter less than the timer value are suppressed.
摘要翻译：无论何时本地生成暂停帧，暂停刷新定时器将通过暂停参数从暂停帧中设置。从远程数据宿接收的暂停帧被捕获，并且暂停参数的值被评估。如果该值小于当前暂停刷新定时器值，则暂停帧将被丢弃。如果该值等于或大于当前暂停刷新定时器值，则将暂停帧传递给数据源，并且使用从远程数据接收的暂停参数设置端对端流控制（EEFC）定时器水槽。当EEFC定时器倒计时时，暂停参数小于定时器值的本地生成的暂停帧被抑制。

6. 发明申请

WO2005001638A3 METHOD AND APPARATUS FOR FAIR QUEUEING OF DATA PACKETS 审中-公开
标题翻译：数据包公平排队的方法和装置
公开(公告)号：WO2005001638A3
公开(公告)日：2006-02-02
申请号：PCT/US2004019273
申请日：2004-06-17
申请人： TRANSWITCH CORP
发明人： DEFORCHE KOEN
IPC分类号： G06F20060101 , H04L12/56 , H04L12/28
CPC分类号： H04L47/56 , H04L47/50 , H04L47/527
摘要： A packet scheduling method and apparatus is described for enqueuing incoming data packets in sessions, and for storing the sessions in sequential order in service-groups. Each service-group is assigned a nominal service-interval in which time a data packet is to be transmitted, the nominal service- interval of one service-group being faster than the nominal service-interval of another service-group, Within one service-group, one session is serviced until the nominal service- interval of any of the service-groups where there is at least one data packet to be sent is exceeded.
摘要翻译：描述了一种分组调度方法和装置，用于在会话中对入局数据分组进行排队，并用于在服务组中按顺序存储会话。每个服务组被分配一个标称服务间隔，在该时间间隔内传输数据包，一个服务组的标称服务间隔比另一个服务组的标称服务间隔更快。在一个服务组内，组，一个会话被服务，直到超过要发送至少一个数据分组的任何服务组的标称服务间隔。

7. 发明申请

WO03094403A2 AN ATM DEVICE INCORPORATING METHODS AND APPARATUS FOR INCREASING THE NUMBER OF UTOPIA PORTS AND METHOD AND APPARATUS FOR AVOIDING HEAD OF LINE BLOCKING 审中-公开
标题翻译：一种ATM设备的增加方法和装置，用于增加UTOPIA端口的数量以及避免线路阻塞的方法和装置
公开(公告)号：WO03094403A2
公开(公告)日：2003-11-13
申请号：PCT/US0313049
申请日：2003-04-28
申请人： TRANSWITCH CORP
发明人： SHANLEY TIMOTHY M , PRESTON THOMAS M , PARRELLA EUGENE L , SRINIVASAN DESIKAN V
IPC分类号： H04L12/54 , H04L12/70 , H04L12/931 , H04L12/935 , H04L
CPC分类号： H04L49/3081 , H04L12/5601 , H04L49/203 , H04L2012/5635 , H04L2012/5672 , H04L2012/5679 , H04L2012/5683
摘要： An ATM device includes means for increasing the number of UTOPIA ports and means for avoiding head of line blocking. Data for a plurality of UTOPIA PHY ports are multiplexed over a first UTOPIA PHY port and backpressure information is provided to the ATM device via a second UTOPIA PHY port. The backpressure information is preferably formatted in a single 56-byte UTOPIA cell. The means for avoiding head of line blocking includes a scheduler, at least one multicast queue, at least one unicast queue, a multicast session table, a multicast timer, and a problem PHY vector. Scheduling is alternated between multicast queue(s) and unicast queue(s). If a PHY device in a multicast session is inactive, it is skipped and the next PHY in the session is serviced. When the session has serviced all of the active PHYs and there remain only inactive PHYs in the session table, the session is ended.
摘要翻译： ATM设备包括用于增加UTOPIA端口的数量的装置和用于避免线路阻塞的头部的装置。用于多个UTOPIA PHY端口的数据通过第一UTOPIA PHY端口进行复用，背压信息经由第二UTOPIA PHY端口提供给ATM设备。背压信息优选地在单个56字节的UTOPIA小区中格式化。用于避免线路阻塞头的装置包括调度器，至少一个多播队列，至少一个单播队列，多播会话表，组播定时器和问题PHY向量。在多播队列和单播队列之间进行调度交替。如果多播会话中的PHY设备处于非活动状态，则会跳过该会话，并且会话中的下一个PHY被维护。当会话已经服务于所有活动PHY并且在会话表中仅保留非活动PHY时，会话结束。

8. 发明申请

WO2007024728A3 COMBINED HARDWARE AND SOFTWARE IMPLEMENTATION OF LINK CAPACITY ADJUSTMENT SCHEME (LCAS) IN SONET 审中-公开
标题翻译： SONET链路容量调整方案（LCAS）的组合硬件和软件实现
公开(公告)号：WO2007024728A3
公开(公告)日：2007-05-31
申请号：PCT/US2006032429
申请日：2006-08-21
申请人： TRANSWITCH CORP , MALIK RAKESH KUMAR , MUKHERJEE DEV SHANKAR , CHILWAL HARSH , GUPTA DINESH
发明人： MALIK RAKESH KUMAR , MUKHERJEE DEV SHANKAR , CHILWAL HARSH , GUPTA DINESH
IPC分类号： H04L12/56
CPC分类号： H04J3/1611
摘要： Combined hardware and software processing is applied in an end node of the network which includes mapping/demapping and deskewing. Most of the LCAS procedure is implemented in software so that it can be modified easily. Some of the procedure is implemented in hardware to meet stringent timing requirements. In particular, the handshaking protocol is implemented in software and the procedure for actually changing of the link capacity in response to the handshaking is implemented in hardware, The hardware and software communicate via a shared memory which includes a receive packet FIFO, receive control and status registers, a transmit packet FIFO, transmit control and status registers, and a transmit time slot interchange table.
摘要翻译：组合的硬件和软件处理应用于网络的终端节点，包括映射/解映射和去歪斜。大多数LCAS程序都是以软件实现的，因此可以轻松修改。一些程序在硬件中实现以满足严格的时序要求。具体来说，握手协议是以软件实现的，并且响应于握手实际改变链路容量的过程在硬件中实现。硬件和软件通过共享存储器进行通信，该共享存储器包括接收分组FIFO，接收控制和状态寄存器，发送包FIFO，发送控制和状态寄存器以及发送时隙交换表。

9. 发明申请

WO2007024729A2 METHODS AND APPARATUS FOR DESKEWING VCAT/LCAS MEMBERS 审中-公开
标题翻译：设计VCAT / LCAS会员的方法和设备
公开(公告)号：WO2007024729A2
公开(公告)日：2007-03-01
申请号：PCT/US2006032430
申请日：2006-08-21
申请人： TRANSWITCH CORP , GUPTA DINESH , MUKHERJEE DEV SHANKAR , MALIK RAKESH KUMAR
发明人： GUPTA DINESH , MUKHERJEE DEV SHANKAR , MALIK RAKESH KUMAR
IPC分类号： H04J3/02
CPC分类号： H04J3/0623 , H04J3/1611 , H04J2203/0094
摘要： Write logic and read logic are coupled to SDRAM and a frame status table. VCG members are written into SDRAM by the write logic and an entry (based on the MFI and SQ) in the frame status table is maintained by the write logic for each member. The read logic scans the frame status table to identify the earliest frame number for which data is available in SDRAM. Based on the frame status and the address pointer offset, the read logic maintains a state table entry for each VCG member and a state for each VCG. According to the preferred embodiment, the read logic is provided in two parts separated by a temporary buffer. The first pait of the read logic performs the functions described above and writes chunk data into the temporary buffer. The second part of the read logic reads byte data from the temporary buffer according to a selectable leak rate.
摘要翻译：写入逻辑和读取逻辑耦合到SDRAM和帧状态表。 VCG成员通过写逻辑写入SDRAM，帧状态表中的条目（基于MFI和SQ）由每个成员的写入逻辑维护。读逻辑扫描帧状态表以识别SDRAM中数据可用的最早帧号。基于帧状态和地址指针偏移，读逻辑维护每个VCG成员的状态表条目和每个VCG的状态。根据优选实施例，读逻辑被提供在由临时缓冲器分开的两个部分中。读逻辑的第一个执行执行上述功能，并将块数据写入临时缓冲区。读取逻辑的第二部分根据可选择的泄漏率从临时缓冲器读取字节数据。

10. 发明申请

WO2005043302A3 METHODS AND APPARATUS FOR IMPLEMENTING MULTIPLE TYPES OF NETWORK TUNNELING IN A UNIFORM MANNER 审中-公开
标题翻译：实现多种类型的网络隧道的方法和装置
公开(公告)号：WO2005043302A3
公开(公告)日：2007-02-22
申请号：PCT/US2004034621
申请日：2004-10-20
申请人： TRANSWITCH CORP
发明人： CONTA ALEX , VARADA SHRIHARI
IPC分类号： G06F15/16 , G06F20060101 , G06F15/173 , H04L12/56 , H04L29/06
CPC分类号： H04L49/3063 , H04L47/2491 , H04L69/18
摘要： A uniform method for implementing multiple tunneling protocols in a switch or router is disclosed. The method is based on the realization that although the tunneling protocols are very different, they do share a similar overall structure which can be exploited to create a unified method of dealing with multiple protocols. By using similar data structures to implement multiple protocols, the invention makes data management and programming simple and, therefore, cost effective. According to the invention, all tunneling protocols are abstracted as the mapping of input L2 or L3 streams with output L2 or L3 streams. Mapping is provided by a finite set of tunnel interfaces. The tunnel interfaces map the input streams to output interfaces. As traffic streams flow through these interfaces, they are processed according to defined attributes of these interfaces.
摘要翻译：公开了一种用于在交换机或路由器中实现多个隧道协议的统一方法。该方法基于这样的认识：虽然隧道协议是非常不同的，但是它们共享一个类似的整体结构，可以利用它来创建一个处理多个协议的统一方法。通过使用类似的数据结构来实现多个协议，本发明使得数据管理和编程变得简单，因而具有成本效益。根据本发明，所有隧道协议被抽象为输入L2或L3流与输出L2或L3流的映射。映射由一组有限的隧道接口提供。隧道接口将输入流映射到输出接口。随着流量流经这些接口，它们根据这些接口的定义属性进行处理。

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