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15 条记录 (耗时 0.013 秒)

    APPARATUS AND METHOD FOR A LIGHTWEIGHT, RELIABLE, PACKET-BASED TRANSPORT PROTOCOL
    1.
    发明公开
    APPARATUS AND METHOD FOR A LIGHTWEIGHT, RELIABLE, PACKET-BASED TRANSPORT PROTOCOL 审中-公开
    设备和方法简单，可靠，基于分组的传输协议

    公开(公告)号：EP1568191A2

    公开(公告)日：2005-08-31

    申请号：EP03789878.0

    申请日：2003-11-19

    申请人： Cisco Technology, Inc. ,  Gai, Silvano

    发明人： GAI, Silvano ,  BERGAMASCO, Davide ,  DESANTI, Claudio ,  MALAGRINO, Dante ,  MAINO, Fabio, R.

    IPC分类号： H04L29/08 ,  H04L29/06 ,  H04L12/56

    CPC分类号： H04L69/16 ,  H04L12/4633 ,  H04L47/10 ,  H04L47/27 ,  H04L47/29 ,  H04L47/30 ,  H04L47/37 ,  H04L69/10 ,  H04L69/161 ,  H04L69/163 ,  H04L69/22 ,  H04L69/26

    摘要： A fast, lightweight, reliable, packet-based protocol (ABC) that operates independent of the type of networking protocol used by the underlying physical layer of the network is disclosed. More specifically, the packet based protocol operates independently of or is capable of encapsulating over physical layer protocols such as but not limited to MAC, Ethernet, Ethernet II, HARD or IP. The protocol defines at least three different types of frames including Information frames, Supervisory frames, and Unnumbered frames. In various embodiments of the invention, the Information, Supervisory, and Unnumbered frames include DSAP and SSAP field with semantics which are sufficiently large to support the various physical layer protocols that may be used on the network. The Information frames, Supervisory frames, and Unnumbered frames also have the ability to support urgent data delivery and certain memory management functions. The protocol is further capable of support the multiplexing of layers higher than the protocol so that multiple higher layer applications may share the same connection. Finally, the protocol of the present invention supports both flow control and congestion control, to help reduce the incidence of lost or dropped packets at a receiving node or over the network respectively.

    METHODS AND DEVICES FOR BACKWARD CONGESTION NOTIFICATION
    6.
    发明公开
    METHODS AND DEVICES FOR BACKWARD CONGESTION NOTIFICATION 审中-公开
    方法及对向拥塞通知设备

    公开(公告)号：EP1935137A2

    公开(公告)日：2008-06-25

    申请号：EP06816262.7

    申请日：2006-10-03

    申请人： Cisco Technology, Inc.

    发明人： BERGAMASCO, Davide ,  BALDINI, Andrea ,  ALARIA, Valentina ,  BONOMI, Flavio ,  PAN, Rong

    IPC分类号： H04L12/26

    CPC分类号： H04L43/0882 ,  H04L43/062 ,  H04L47/10 ,  H04L47/11 ,  H04L47/263 ,  H04L47/30

    摘要： The present invention provides improved methods and devices for managing network congestion. Preferred implementations of the invention allow congestion to be pushed from congestion points in the core of a network to reaction points, which may be edge devices, host devices or components thereof. Preferably, rate limiters shape individual flows of the reaction points that are causing congestion. Parameters of these rate limiters are preferably tuned based on feedback from congestion points, e.g., in the form of backward congestion notification ('BCN') messages. In some implementations, such BCN messages include congestion change information and at least one instantaneous measure of congestion. The instantaneous measure(s) of congestion may be relative to a threshold of a particular queue and/or relative to a threshold of a buffer that includes a plurality of queues.

    FIBRE CHANNEL SWITCH THAT ENABLES END DEVICES IN DIFFERENT FABRICS TO COMMUNICATE WITH ONE ANOTHER WHILE RETAINING THEIR UNIQUE FIBRE CHANNEL DOMAIN-IDS
    7.
    发明公开
    FIBRE CHANNEL SWITCH THAT ENABLES END DEVICES IN DIFFERENT FABRICS TO COMMUNICATE WITH ONE ANOTHER WHILE RETAINING THEIR UNIQUE FIBRE CHANNEL DOMAIN-IDS 有权
    光纤信道网络就区别不同的单位，教育终端站，同时保持您的光纤通道区域的身份SOLE通信的支持

    公开(公告)号：EP1636946A1

    公开(公告)日：2006-03-22

    申请号：EP04756162.6

    申请日：2004-06-25

    申请人： Cisco Technology, Inc.

    发明人： DUTT, Dinesh, G. ,  EDSALL, Thomas ,  JAIN, Ankur ,  GAI, Silvano ,  BENERJEE, Subrata ,  BERGAMASCO, Davide ,  RAIMONDO, Bruno ,  BHARDWAJ, Rajeev

    IPC分类号： H04L12/46

    CPC分类号： H04L67/1097 ,  H04L45/04 ,  H04L2212/00

    摘要： A Fibre Channel Switch which enables end devices in different Fabrics to communicate with one another while retaining their unique Fibre Channel Domain_IDs. The Switch is coupled to a first fabric having a first set of end devices and a second fabric having a second set of end devices. The Switch is configured to enable communication by the first set of end devices associated with the first fabric with the second set of end devices associated with the second set of end devices using the unique Domain_IDs of each of the first set and the second set of end devices. In one embodiment of the invention, the first and second fabrics are first and second Virtual Storage Array Networks (VSANs) respectively. In an alternative embodiment, the first fabric and the second fabric are separate physical fabrics.

    摘要翻译： 光纤通道交换机，其中不同的面料使终端设备能够彼此同时保留其独特的光纤通道的Domain_ID通信。 该开关被耦合到具有第一组终端设备和具有第二组端设备中的第二织物的第一织物。 所述开关被配置通过所述第一组与所述第一织物与所述第二组与所述第二组使用每个第一组的独特的Domain_ID和第二组端的终端设备相关联的终端设备相关联的终端设备以可通信的 装置。 分别在本发明的一个实施方案中，第一和第二织物的第一和第二虚拟存储阵列网络（VSAN的）。 在一个替代实施例中，第一织物和第二织物是单独的物理织物。

    ACTIVE QUEUE MANAGEMENT METHODS AND DEVICES
    8.
    发明公开
    ACTIVE QUEUE MANAGEMENT METHODS AND DEVICES 有权
    方法和装置用于主动队列管理

    公开(公告)号：EP1805524A2

    公开(公告)日：2007-07-11

    申请号：EP05810800.2

    申请日：2005-10-13

    申请人： Cisco Technology, Inc.

    发明人： BERGAMASCO, Davide ,  BONOMI, Flavio ,  ALARIA, Valentina ,  BALDINI, Andrea

    IPC分类号： G01R31/08

    CPC分类号： H04L47/10 ,  H04L47/24 ,  H04L47/26 ,  H04L47/30 ,  H04L47/31

    摘要： Novel methods and devices are provided for AQM of input-buffered network devices. Preferred implementations of the invention control overall buffer occupancy while protecting uncongested individual VOQs. The probability of setting a 'global drop flag' (which is not necessarily used to trigger packet drops, but may also be used to trigger other AQM responses) may depend, at least in part, on the lesser of a running average of buffer occupancy and instantaneous buffer occupancy. In some preferred embodiments, this probability also depends on the number of active VOQs. Moreover, a global drop flag is set in conjunction with a drop threshold M associated with the VOQs. Whether an AQM response is made may depend on whether a global drop flag has been set and whether a destination VOQ contains M or more packets. Different M values may be established for different classes of traffic, e.g., with higher M values for higher-priority traffic. AQM responses (e.g., to drop packets) may be taken more aggressively when there is a larger number of active VOQs.

    NETWORK DEVICE ARCHITECTURE FOR CONSOLIDATING INPUT/OUTPUT AND REDUCING LATENCY
    9.
    发明公开
    NETWORK DEVICE ARCHITECTURE FOR CONSOLIDATING INPUT/OUTPUT AND REDUCING LATENCY 有权
    网络设备架构进行整合输入/输出和降低延迟的

    公开(公告)号：EP1803257A2

    公开(公告)日：2007-07-04

    申请号：EP05851226.0

    申请日：2005-10-13

    申请人： Cisco Technology, Inc.

    发明人： GAI, Silvano ,  EDSALL, Thomas ,  BERGAMASCO, Davide ,  DUTT, Dinesh ,  BONOMI, Flavio

    IPC分类号： H04L12/28

    CPC分类号： H04L47/10 ,  H04L12/413 ,  H04L47/32 ,  H04L47/33 ,  H04L47/39 ,  H04L49/90

    摘要： The present invention provides methods and devices for implementing a Low Latency Ethernet ('LLE') solution, also referred to herein as a Data Center Ethernet ('DCE') solution, which simplifies the connectivity of data centers and provides a high bandwidth, low latency network for carrying Ethernet and storage traffic. Some aspects of the invention involve transforming FC frames into a format suitable for transport on an Ethernet. Some preferred implementations of the invention implement multiple virtual lanes ('VLs') in a single physical connection of a data center or similar network. Some VLs are 'drop' VLs (1505), with Ethernet-like behavior, and others are 'no-drop' lanes (1510 )with FC-like behavior. Some preferred implementations of the invention provide guaranteed bandwidth based on credits and VL. Active buffer management allows for both high reliability and low latency while using small frame buffers. Preferably, the rules for active buffer management are different for drop and no drop VLs.

    摘要翻译： 本发明提供一种用于实现低延时以太网（“LLE”）溶液，由作为数据中心以太网（“DCE”）溶液，从而简化了数据中心的连接，并提供一个高带宽，低进入称为方法和装置 延迟的网络承载以太网和存储流量。 本发明的一些方面涉及将FC帧成适合于传输到以太网的格式。 本发明的一些优选实施方式实现多个虚拟通道（“VL的”）在数据中心或类似网络的单个物理连接。 一些VL的是“滴” VL通过类似以太网的行为，其他都是“不降”车道，FC-样的行为。 本发明的一些优选实施方式提供一种基于信用和VL保证带宽。 对于这两种高可靠性和低等待时间活跃缓冲器管理允许同时使用小的帧缓冲器。 优选地，用于有源缓冲器管理的规则是用于下降和没有下降VL的不同。

    METHODS AND APPARATUS FOR CREDIT-BASED FLOW CONTROL
    10.
    发明公开
    METHODS AND APPARATUS FOR CREDIT-BASED FLOW CONTROL 有权
    VERFAHREN UND VORRICHTUNG ZUR KREDITBASIERTEN FLUSSSTEUERUNG

    公开(公告)号：EP1532775A2

    公开(公告)日：2005-05-25

    申请号：EP03771608.1

    申请日：2003-07-14

    申请人： Cisco Technology, Inc.

    发明人： BERGAMASCO, Davide ,  GAI, Silvano ,  EDSALL, Thomas, James ,  KLOTH, Ray

    IPC分类号： H04L12/56

    CPC分类号： H04L47/10 ,  H04L47/39

    摘要： Methods and apparatus are provided for credit-based flow control. Techniques allow a receiver to provide buffer characteristic information to a sender using a single extended receiver ready signal. Multiple credits can be allocated using a single extended receiver ready signal as well. Counters and registers are used to allow for the accidental loss of extended receiver ready signals while still maintaining an accurate reflection of the types and numbers of buffers available.

    摘要翻译： 提供了基于信用流量控制的方法和设备。 技术允许接收机使用单个扩展接收器就绪信号向发送器提供缓冲器特性信息。 可以使用单个扩展接收器就绪信号分配多个信用。 计数器和寄存器用于允许意外丢失延长的接收器就绪信号，同时仍然保持对可用缓冲器的类型和数量的准确反映。