公开(公告)号：US5903559A

公开(公告)日：1999-05-11

申请号：US771559

申请日：1996-12-20

Applicant: Arup Acharya ,  Rajiv Dighe

Inventor： Arup Acharya ,  Rajiv Dighe

IPC: H04Q3/00 ,  H04L12/46 ,  H04L12/56 ,  H04Q11/04 ,  H04J3/24

CPC classification number: H04L12/4608 ,  H04Q11/0478 ,  H04L2012/562 ,  H04L2012/5667

Abstract: A method for transporting Internet Protocols (IP's) over an Asynchronous Transfer Mode (ATM) network that exhibits the strengths of ATM, namely packet interleaving (using cell-based transport) with Quality of Service support for connection-oriented traffic (such as multiclass native ATM traffic and flows-based IP traffic using RSVP), while optimizing the connectionless requirements of existing IP traffic. Advantageously, both the IP protocol stack and ATM protocol stack operate as peers over ATM cell transport hardware. The method exploits an "implicit" signaling/control phase characteristic of IP traffic/protocols thereby minimizing setup. The implicit signaling phase is used to map a flow from a routed path to a switched path immediately upon transmission of a first packet. Similarly, particular packets may be immediately transported over the routed path even after establishment of the switched path. This mapping from the routed path to the switched path and vice versa is based upon the structure/semantics of the protocol driving the flow and not just the duration of the flow as done with prior-art methods. Consequently, while prior-art methods require cell-level counters to monitor activity (or lack thereof) for switching state, the method uses explicit control messages and soft-state at the IP level (as opposed to the cell level) to do the same. Advantageously, the method imposes no switching overhead as there is no coordination between neighboring nodes when a flow is moved from the routed path to the switched path.

Abstract translation: 一种通过异步传输模式（ATM）网络传输互联网协议（IP）的方法，该异步传输模式（ATM）网络展现了ATM的优势，即具有服务质量的数据包交织（使用基于单元的传输），支持面向连接的流量（如多类本机 ATM流量和基于流量的IP流量使用RSVP），同时优化现有IP流量的无连接要求。 有利地，IP协议栈和ATM协议栈都作为ATM信元传输硬件上的对等体来操作。 该方法利用IP流量/协议的“隐含”信令/控制阶段特性，从而最小化安装。 隐式信令阶段用于在传输第一分组时立即将来自路由路径的流映射到交换路径。 类似地，即使在建立切换路径之后，特定分组也可以立即通过路由路径传送。 从路由路径到交换路径的映射，反之亦然是基于驱动流程的协议的结构/语义，而不仅仅是流程的持续时间，如现有技术的方法所完成的。 因此，虽然现有技术方法要求小区级计数器监视切换状态的活动（或不存在），该方法使用显式控制消息和IP级（与小区级相反）的软状态来进行相同 。 有利地，该方法不施加切换开销，因为当流从路由路径移动到切换路径时，相邻节点之间没有协调。

公开(公告)号：US06343326B2

公开(公告)日：2002-01-29

申请号：US09080208

申请日：1998-05-18

Applicant: Arup Acharya ,  Rajiv Dighe

Inventor： Arup Acharya ,  Rajiv Dighe

IPC: G06F15173

CPC classification number: H04L12/4608 ,  H04L2012/562 ,  H04L2012/5667 ,  H04Q11/0478

Abstract: In a method of transmitting an IP packet between a source and a destination through an ATM network which has a node formed by an ATM switch and a packet router, a reception packet or cell is transmitted to the node on an unused or undefined VC and is sent to the packet router in the node. In the packet router, an output port is selected by the use of the unused VC to establish a switched virtual channel in the ATM switch and to transfer each packet through the switched virtual channel after the switched virtual channel is established, as long as the reception packet is sent on the same VCI. Neither signaling nor protocol is needed between the nodes.

Abstract translation: 在通过具有由ATM交换机和分组路由器形成的节点的ATM网络在源和目的地之间发送IP分组的方法中，接收分组或小区在未使用或未定义的VC上被发送到节点，并且是 发送到节点中的数据包路由器。 在分组路由器中，通过使用未使用的VC来选择输出端口，以在ATM交换机中建立切换的虚拟信道，并且在切换的虚拟信道建立之后通过交换的虚拟信道传送每个分组，只要接收 数据包在相同的VCI上发送。 节点之间不需要信令或协议。

公开(公告)号：US5530695A

公开(公告)日：1996-06-25

申请号：US167337

申请日：1993-12-15

Applicant: Rajiv Dighe ,  Gopalakrishnan Ramamurthy ,  Dipankar Raychaudhuri

Inventor： Rajiv Dighe ,  Gopalakrishnan Ramamurthy ,  Dipankar Raychaudhuri

IPC: H04Q3/00 ,  H04L12/56 ,  H04Q11/04 ,  H04L12/26

CPC classification number: H04L12/5602 ,  H04L49/255 ,  H04Q11/0478 ,  H04L2012/5614 ,  H04L2012/5629 ,  H04L2012/5632 ,  H04L2012/5635 ,  H04L2012/5637 ,  H04L2012/564 ,  H04L2012/5645 ,  H04L2012/5651 ,  H04L2012/568

Abstract: An asynchronous transfer mode (ATM) traffic control framework is based on an integrated usage parameter control (UPC) approach, which approach provides a unified and scalable solution to the issue of quality-of-services (QOS) levels over a range of anticipated services in ATM based networks. The approach is consistent with emerging ATM Forum and CCITT standards. Additionally, a UPC-based call and burst admission control providing the desired QOS over periods of network overload by call/burst admission control and traffic shaping of source stream preferably uses a dual leaky bucket.

Abstract translation: 异步传输模式（ATM）流量控制框架基于集成使用参数控制（UPC）方法，该方法为一系列预期服务提供统一和可扩展的解决方案以解决服务质量（QOS）问题 在基于ATM的网络中。 该方法与新兴的ATM论坛和CCITT标准相一致。 此外，通过呼叫/突发准入控制和源流的流量整形，通过网络过载周期提供期望的QOS的基于UPC的呼叫和突发准入控制优选地使用双漏斗。

公开(公告)号：US06125116A

公开(公告)日：2000-09-26

申请号：US185592

申请日：1998-11-04

Applicant: Rajiv Dighe ,  Subir K. Biswas ,  Vasanthi Thirumalai ,  Kojiro Watanabe ,  Gopalakrishnan Ramamurthy

Inventor： Rajiv Dighe ,  Subir K. Biswas ,  Vasanthi Thirumalai ,  Kojiro Watanabe ,  Gopalakrishnan Ramamurthy

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

CPC classification number: H04Q11/0478 ,  H04L2012/561 ,  H04L2012/5626

Abstract: The present invention pertains to message sets for use in a flexible programmable multiplexer for accessing an Asynchronous Transfer Mode (ATM) network. The access multiplexer uses a functional separation of line related functions and protocol related functions. Line interface cards perform line related functions. A message set for use in such a multiplexing system that uses a functional separation of line and protocol related functions is provided. The message set includes a general message, a hello message, a configuration message, a line stabilized message, an identify remote message, an identify remote acknowledgement message, a reset remote message, a report statistics message, a report statistics acknowledgement message, a loopback test message and a dynamic rate adaptation message. A flexible programmable multiplexer that uses the message set is also provided.

Abstract translation: 本发明涉及用于访问异步传输模式（ATM）网络的灵活可编程多路复用器中的消息集。 接入复用器使用线路相关功能和协议相关功能的功能分离。 线路接口卡执行线路相关功能。 提供了一种用于这种使用线路和协议相关功能的功能分离的复用系统的消息集。 消息集包括通用消息，呼叫消息，配置消息，线路稳定消息，标识远程消息，标识远程确认消息，重置远程消息，报告统计消息，报告统计确认消息，环回 测试消息和动态速率适配消息。 还提供了使用该消息集的柔性可编程多路复用器。

公开(公告)号：US5448567A

公开(公告)日：1995-09-05

申请号：US97683

申请日：1993-07-27

Applicant: Rajiv Dighe ,  Alexander T. Ishii ,  Gopalakrishnan Ramamurthy

Inventor： Rajiv Dighe ,  Alexander T. Ishii ,  Gopalakrishnan Ramamurthy

IPC: H04Q3/00 ,  H04L12/56 ,  H04Q11/04 ,  H04J3/24

CPC classification number: H04L12/5602 ,  H04Q11/0478 ,  H04L2012/5637 ,  H04L2012/564 ,  H04L2012/5645

Abstract: A control method and architecture is described for an ATM network carrying connectionless data traffic. The method is capable of integrating connection-oriented as well as connectionless traffic. The method takes advantage of the quasi-deterministic nature of the traffic emanating from a source that is being shaped by the leaky bucket shaping algorithm. Alternative methods are provided if such a shaping algorithm is not provided by the CPE which methods still guarantee performance that equals or exceeds shared media networks such as FDDI. Hardware and software embodiments of the methods are disclosed. The invention is particularly applicable to LANs and hubs.

Abstract translation: 描述了一种用于承载无连接数据流量的ATM网络的控制方法和架构。 该方法能够集成面向连接和无连接的流量。 该方法利用由泄漏桶整形算法形成的源发出的流量的准确定性。 如果CPE不提供这种整形算法，那么提供替代方法，哪些方法仍然保证等于或超过诸如FDDI的共享媒体网络的性能。 公开了该方法的硬件和软件实施例。 本发明特别适用于LAN和集线器。