专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明申请

WO1997004544A1 NETWORK SWITCH UTILIZING CENTRALIZED AND PARTITIONED MEMORY FOR CONNECTION TOPOLOGY INFORMATION STORAGE 审中-公开
标题翻译：网络开关利用集中和分离的存储器进行连接拓扑信息存储
公开(公告)号：WO1997004544A1
公开(公告)日：1997-02-06
申请号：PCT/US1996011932
申请日：1996-07-18
申请人： ASCOM NEXION INC. , MANNING, Thomas, A. , CALDARA, Stephen, A. , HAUSER, Stephen, A. , SHERMAN, Alan, D.
发明人： ASCOM NEXION INC.
IPC分类号： H04J03/02
CPC分类号： H04L47/18 , G06F15/17375 , H04J3/0682 , H04J3/0685 , H04L7/046 , H04L12/4608 , H04L12/5601 , H04L12/5602 , H04L41/0896 , H04L47/10 , H04L47/11 , H04L47/26 , H04L47/266 , H04L47/29 , H04L47/30 , H04L47/621 , H04L49/106 , H04L49/107 , H04L49/153 , H04L49/1553 , H04L49/1576 , H04L49/203 , H04L49/253 , H04L49/255 , H04L49/256 , H04L49/3081 , H04L49/309 , H04L49/455 , H04L49/552 , H04L49/555 , H04L69/32 , H04L69/324 , H04L2012/5614 , H04L2012/5616 , H04L2012/5627 , H04L2012/5628 , H04L2012/5629 , H04L2012/5631 , H04L2012/5632 , H04L2012/5634 , H04L2012/5635 , H04L2012/5642 , H04L2012/5643 , H04L2012/5647 , H04L2012/5648 , H04L2012/5649 , H04L2012/5651 , H04L2012/5652 , H04L2012/5672 , H04L2012/5679 , H04L2012/5681 , H04L2012/5682 , H04L2012/5683 , H04L2012/5685 , H04Q11/0478
摘要： A network switch utilizing centralized and partitioned memory for storing connection topology information. The switch includes at least one input port (14), at least one output port (18) and a central switch fabric (28) interconnecting the input port and output port, with the connection topology memory centralized at the switch fabric. The central switch fabric includes at least one input side translator (24) associated with a predetermined number of input ports and at least one output port side translator (40) associated with a predetermined number of output ports. The connection topology memory (26, 44) is distributed among the at least one input side translator and the at least one output side translator. With this arrangement, memory bandwidth requirements associated with connection topology look-up operations are distributed and scaling the number of ports is facilitated.
摘要翻译：一种利用集中式和分区式存储器存储连接拓扑信息的网络交换机。交换机包括至少一个输入端口（14），将输入端口和输出端口互连的至少一个输出端口（18）和中央交换结构（28）与连接拓扑存储器集中在交换结构处。中央交换结构包括与预定数量的输入端口相关联的至少一个输入侧转换器（24）和与预定数量的输出端口相关联的至少一个输出端口侧转换器（40）。连接拓扑存储器（26,44）分布在至少一个输入侧转换器和至少一个输出侧转换器中。通过这种安排，与连接拓扑查找操作相关联的存储器带宽需求被分配并且缩短了端口数量。

62. 发明申请

WO9704543A2 ALLOCATED AND DYNAMIC SWITCH FLOW CONTROL 审中-公开
标题翻译：分配和动态开关流量控制
公开(公告)号：WO9704543A2
公开(公告)日：1997-02-06
申请号：PCT/US9611942
申请日：1996-07-18
申请人： ASCOM NEXION INC , CALDARA STEPHEN A , HAUSER STEPHEN A , MANNING THOMAS A
发明人： CALDARA STEPHEN A , HAUSER STEPHEN A , MANNING THOMAS A
IPC分类号： G06F12/02 , G06F9/46 , G06F15/173 , H04J3/06 , H04L1/22 , H04L7/04 , H04L12/18 , H04L12/24 , H04L12/46 , H04L12/54 , H04L13/08 , H04L29/06 , H04L29/08 , H04M3/00 , H04M3/08 , H04M3/22 , H04Q3/00 , H04Q3/545 , H04Q11/04 , H04J
CPC分类号： H04L47/18 , G06F15/17375 , H04J3/0682 , H04J3/0685 , H04L7/046 , H04L12/4608 , H04L12/5601 , H04L12/5602 , H04L41/0896 , H04L47/10 , H04L47/11 , H04L47/26 , H04L47/266 , H04L47/29 , H04L47/30 , H04L47/621 , H04L49/106 , H04L49/107 , H04L49/153 , H04L49/1553 , H04L49/1576 , H04L49/203 , H04L49/253 , H04L49/255 , H04L49/256 , H04L49/3081 , H04L49/309 , H04L49/455 , H04L49/552 , H04L49/555 , H04L69/32 , H04L69/324 , H04L2012/5614 , H04L2012/5616 , H04L2012/5627 , H04L2012/5628 , H04L2012/5629 , H04L2012/5631 , H04L2012/5632 , H04L2012/5634 , H04L2012/5635 , H04L2012/5642 , H04L2012/5643 , H04L2012/5647 , H04L2012/5648 , H04L2012/5649 , H04L2012/5651 , H04L2012/5652 , H04L2012/5672 , H04L2012/5679 , H04L2012/5681 , H04L2012/5682 , H04L2012/5683 , H04L2012/5685 , H04Q11/0478
摘要： A method and apparatus are disclosed for eliminating cell loss in a network switch through the use of flow control of both allocated and dynamic bandwidth. When output buffers in the switch become filled to a predetermined threshold level a feedback message is provided to input buffers to prevent transmission of cells from the input buffers to the output buffers. In order to provide connection and traffic type isolation the buffers are grouped into queues and flow control may be implemented on a per queue basis. The feedback message is a digital signal including an ACCEPT/REJECT message and a NO-OP/XOFF message. An XOFF message can be received while transmitting via allocated bandwith or dynamic bandwidth. In particular, an XOFF (allocated) message may be received with regard to allocated bandwidth and an XOFF (dynamic) message may be received with regard to dynamic bandwidth. An optional tagging technique may be employed to distinguish between requests for dynamic and allocated bandwidth. When ACCEPT is received by the requesting input queue the cell is transferred to the output queue. When REJECT is received by the requesting queue the cell is not transferred. When XOFF (dynamic) is received by the requesting input queue further requests to transfer to that output queue by the requesting input queue using dynamic bandwidth are halted until receipt of an XON message from that output queue. When XOFF (allocated) is received by the requesting input queue further requests to transfer to that output queue by the requesting input queue using allocated bandwidth are halted until receipt of an XON message from that output queue.
摘要翻译：公开了一种通过使用分配和动态带宽的流量控制来消除网络交换机中的信元丢失的方法和装置。当交换机中的输出缓冲器被填充到预定阈值电平时，将反馈消息提供给输入缓冲器以防止将单元从输入缓冲器传输到输出缓冲器。为了提供连接和流量类型隔离，缓冲区被分组成队列，并且流控制可以在每个队列的基础上实现。反馈消息是包括ACCEPT / REJECT消息和NO-OP / XOFF消息的数字信号。在通过分配的带宽或动态带宽发送时可以接收XOFF消息。特别地，可以针对分配的带宽接收XOFF（分配）消息，并且可以关于动态带宽接收XOFF（动态）消息。可以采用可选的标记技术来区分对动态和分配带宽的请求。当请求输入队列接收到ACCEPT时，单元被传送到输出队列。当请求队列接收到REJECT时，单元不被传送。当请求输入队列接收到XOFF（动态）时，停止通过请求输入队列使用动态带宽传送到该输出队列的请求，直到从该输出队列接收到XON消息。当请求输入队列接收到XOFF（分配））时，暂停使用分配带宽的请求输入队列向该输出队列传送的请求，直到从该输出队列接收到XON消息。

63. 发明申请

WO1997003549A2 PRIORITIZED ACCESS TO SHARED BUFFERS 审中-公开
标题翻译：优先访问共享缓冲区
公开(公告)号：WO1997003549A2
公开(公告)日：1997-02-06
申请号：PCT/US1996011920
申请日：1996-07-18
申请人： ASCOM NEXION INC. , HAUSER, Stephen, A. , CALDARA, Stephen, A. , MANNING, Thomas, A.
发明人： ASCOM NEXION INC.
IPC分类号： G06F12/02 , G06F9/46 , G06F15/173 , H04J3/06 , H04L1/22 , H04L7/04 , H04L12/18 , H04L12/24 , H04L12/46 , H04L12/54 , H04L13/08 , H04L29/06 , H04L29/08 , H04M3/00 , H04M3/08 , H04M3/22 , H04Q3/00 , H04Q3/545 , H04Q11/04
CPC分类号： H04L49/253 , G06F15/17375 , H04J3/0682 , H04J3/0685 , H04L7/046 , H04L12/4608 , H04L12/5601 , H04L12/5602 , H04L41/0896 , H04L47/10 , H04L47/11 , H04L47/18 , H04L47/26 , H04L47/266 , H04L47/29 , H04L47/30 , H04L47/621 , H04L49/106 , H04L49/107 , H04L49/153 , H04L49/1553 , H04L49/1576 , H04L49/203 , H04L49/255 , H04L49/256 , H04L49/3081 , H04L49/309 , H04L49/455 , H04L49/552 , H04L49/555 , H04L69/32 , H04L69/324 , H04L2012/5614 , H04L2012/5616 , H04L2012/5627 , H04L2012/5628 , H04L2012/5629 , H04L2012/5631 , H04L2012/5632 , H04L2012/5634 , H04L2012/5635 , H04L2012/5642 , H04L2012/5643 , H04L2012/5647 , H04L2012/5648 , H04L2012/5649 , H04L2012/5651 , H04L2012/5652 , H04L2012/5672 , H04L2012/5679 , H04L2012/5681 , H04L2012/5682 , H04L2012/5683 , H04L2012/5685 , H04Q11/0478 , H04W28/14
摘要： In a link-level flow controlled system, a method and apparatus providing the ability to partition a buffer resource among multiple prioritized buffer subsets through definition of at least one threshold, the buffer resource being shared by a plurality of connections. Different categories of service levels, in terms of delay bounds, are thus enabled. The presently disclosed link-level flow controlled system provides for zero cell loss. The shared buffer resource is divided among N priority pools, defined by N-1 threshold levels, each priority pool attributable to a respective category of service. Link-level counters and registers, disposed in a transmit element, as well as an indication of priority level associated with each connection, are employed in realizing the shared buffer resource.
摘要翻译：在链路级流控制系统中，提供通过定义至少一个阈值在多个优先化缓冲器子集中划分缓冲器资源的能力的方法和装置，所述缓冲器资源由多个连接共享。因此，在延迟范围方面，可以实现不同类别的服务级别。目前公开的链路级流控制系统提供零信元丢失。共享缓冲区资源划分为N个优先级池，由N-1个阈值级别定义，每个优先级池归因于各自的服务类别。布置在发送元件中的链路级计数器和寄存器以及与每个连接相关联的优先级的指示被用于实现共享缓冲器资源。

64. 发明申请

WO1995024812A1 BROADBAND SWITCHING NETWORK 审中-公开
标题翻译：宽带切换网络
公开(公告)号：WO1995024812A1
公开(公告)日：1995-09-14
申请号：PCT/GB1995000502
申请日：1995-03-08
申请人： OXFORD BROOKES UNIVERSITY , BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY , SMITH, Avril , ADAMS, John, Leonard
发明人： OXFORD BROOKES UNIVERSITY , BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
IPC分类号： H04Q11/04
CPC分类号： H04L12/5602 , H04L49/3081 , H04L2012/5615 , H04L2012/5629 , H04L2012/563 , H04L2012/5632 , H04L2012/5634 , H04L2012/5635 , H04L2012/5636 , H04L2012/5639 , H04Q11/0478
摘要： In a broadband switching system for the switching of asynchronously transferred cells of data, a dynamic bandwidth controller (DBC) controls the application of data cells to an input port of the system, the data cells being supplied by a number of transmitting end systems. The DBC provides buffering for cells from each source and controls the output of data cells to the system according to a current cell rate (CR) assigned to cells from the respective end system. When an end system begins transmitting data cells, the DBC detects the presence of incoming cells and requests bandwidth from a connection admission control (CAC) forming part of the system whilst providing a default cell rate for the end system so that transmission can continue until an appropriate bandwidth is allocated. The DBC contains a buffer for buffering cells in this situation. Once appropriate bandwidth has been allocated, cell rate advice information from the CAC is fed back to the DBC and thence to the transmitting end system to prevent the transmission of cells at too high a rate for the available bandwidth. The invention has both apparatus and method aspects.
摘要翻译：在用于切换异步传输的数据单元的宽带交换系统中，动态带宽控制器（DBC）控制数据单元到系统的输入端口的应用，数据单元由多个发送端系统提供。 DBC为每个源的单元提供缓冲，并根据分配给相应终端系统的单元的当前单元速率（CR）来控制数据单元向系统的输出。当终端系统开始发送数据单元时，DBC检测入站的存在，并从构成系统一部分的连接许可控制（CAC）请求带宽，同时为终端系统提供默认的单元速率，以便传输可以持续到分配适当的带宽。在这种情况下，DBC包含缓冲单元的缓冲区。一旦已经分配了适当的带宽，来自CAC的信元速率建议信息被反馈到DBC，并且因此被反馈到发送端系统，以防止以可用带宽太高的速率传输信元。本发明具有装置和方法两个方面。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式