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    CONTROLLING SWITCH MECHANISM FOR DETECTING FIBRE CHANNEL OVER ETHERNET DATA FORWARDER FAILURE
    2.
    发明申请
    CONTROLLING SWITCH MECHANISM FOR DETECTING FIBRE CHANNEL OVER ETHERNET DATA FORWARDER FAILURE 有权
    用于检测以太网数据的光纤通道的控制开关机构转发器故障

    公开(公告)号：US20150138946A1

    公开(公告)日：2015-05-21

    申请号：US14091609

    申请日：2013-11-27

    Applicant: International Business Machines Corporation

    Inventor： Roger G. HATHORN ,  Henry J. MAY ,  Daniel SENTLER

    IPC: H04L12/24 ,  H04L12/931

    CPC classification number: H04L41/0668 ,  H04L43/10 ,  H04L49/357 ,  H04L49/557 ,  H04L49/70

    Abstract: Techniques are provided for detecting failure of switching elements of a distributed switch configured to forward Fibre Channel over Ethernet (FCoE) frames. Periodic discovery advertisement messages, which include a fabric name fieldm, are transmitted between a controlling Fibre Channel Forwarder (cFCF) and a FCoE data forwarder (FDF). The cFCF determines a FDF has failed out of the switch fabric based on a reserved value in the fabric name field of a received discovery advertisement message, such as a zero or null value, and de-instantiates virtual links with that FDF.

    Abstract translation: 提供了用于检测配置为转发以太网光纤通道（FCoE）帧的分布式交换机的交换元件的故障的技术。 在控制光纤通道转发器（cFCF）和FCoE数据转发器（FDF）之间传输包括光纤名称字段的定期发现广告消息。 cFCF基于接收到的发现通告消息（例如零值或空值）的结构名称字段中的保留值，确定FDF已经出现在交换结构之外，并且与该FDF取消实例化虚拟链路。

    FIBRE CHANNEL OVER ETHERNET (FCoE) ZONING IN A DISTRIBUTED ETHERNET SWITCH
    3.
    发明申请
    FIBRE CHANNEL OVER ETHERNET (FCoE) ZONING IN A DISTRIBUTED ETHERNET SWITCH 有权
    分布式以太网交换机中的以太网（FCoE）光纤通道

    公开(公告)号：US20150334053A1

    公开(公告)日：2015-11-19

    申请号：US14481625

    申请日：2014-09-09

    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

    Inventor： Joachim FENKES ,  Henry J. MAY ,  Christoph RAISCH ,  Stefan ROSCHER ,  Alexander SCHMIDT ,  Daniel SENTLER

    IPC: H04L12/947 ,  H04L12/741

    CPC classification number: H04L49/25 ,  H04L12/6418 ,  H04L45/745 ,  H04L49/351

    Abstract: Method to perform an operation comprising, receiving a login request from an endpoint connected to first physical port of a first switch module of a distributed network switch, wherein the distributed network switch comprises a plurality of switch modules, wherein each switch module comprises a plurality of ASICs, responsive to the login request, storing, in a FCDF database, an entry comprising an identifier of the first physical port and a unique identifier of the endpoint, and responsive to receiving, from a cFCF, a zoning update comprising the unique identifier of the endpoint and an FCID for the endpoint, storing the FCID in the FCDF database entry for the endpoint, identifying a first ASIC, of the plurality of ASICs of the first switch module, connected to the first physical port, and updating a zoning table of the first ASIC to include the zoning update.

    Abstract translation: 执行操作的方法，包括：从连接到分布式网络交换机的第一交换机模块的第一物理端口的端点接收登录请求，其中所述分布式网络交换机包括多个交换机模块，其中每个交换机模块包括多个 ASIC响应于登录请求，在FCDF数据库中存储包括第一物理端口的标识符和端点的唯一标识符的条目，并且响应于从cFCF接收包括唯一标识符的分区更新的分区更新 所述端点和所述端点的FCID，将所述FCID存储在所述端点的FCDF数据库条目中，以识别连接到所述第一物理端口的所述第一交换机模块的所述多个ASIC中的第一ASIC，并且更新分区表 第一个ASIC包括分区更新。

    HANDLING LARGE FRAMES IN A VIRTUALIZED FIBRE CHANNEL OVER ETHERNET (FCOE) DATA FORWARDER
    6.
    发明申请
    HANDLING LARGE FRAMES IN A VIRTUALIZED FIBRE CHANNEL OVER ETHERNET (FCOE) DATA FORWARDER 有权
    在以太网（FCOE）数据转发器中的虚拟光纤通道中处理大型帧

    公开(公告)号：US20150312161A1

    公开(公告)日：2015-10-29

    申请号：US14263015

    申请日：2014-04-28

    Applicant: International Business Machines Corporation

    Inventor： Christoph RAISCH ,  Stefan ROSCHER ,  Alexander SCHMIDT ,  Daniel SENTLER

    IPC: H04L12/863 ,  H04L12/46 ,  H04L12/24

    CPC classification number: H04L47/62 ,  H04L12/462 ,  H04L12/4625 ,  H04L49/351 ,  H04L49/9052 ,  H04L49/9084

    Abstract: A switch unit has one frame buffer pool for storing received frames and another frame buffer pool for storing large frames. The frame size in the large frame buffer pool may be optimized to the largest amount of data the switch unit that an FCoE switching is running on can support (i.e., a limitation of zone entries). Should free space be unavailable in the large frame buffer pool, or if a sequence grows bigger than can be supported, the switch unit may still continue to send response frames back to the sender. While the switch unit may store header information of the frame, the switch unit does not store the data of subsequent frames any longer. Once the sequence has been received completely, a rejection message is sent back with an appropriate error or reason code. The rejection message enables the sender to attempt a retransmission or cancel the current request altogether.

    Abstract translation: 开关单元具有用于存储接收到的帧的一个帧缓冲池和用于存储大帧的另一个帧缓冲池。 可以将大帧缓冲池中的帧大小优化为运行FCoE交换的交换单元可以支持的最大数据量（即，区域条目的限制）。 如果大帧缓冲池中的空闲空间不可用，或者如果序列长度大于可支持的长度，则交换机单元仍然可以继续将响应帧发送回发送方。 虽然开关单元可以存储帧的标题信息，但是开关单元不再存储后续帧的数据。 一旦序列已被完全接收，就会以相应的错误或原因代码发回拒绝信息。 拒绝消息使得发送者能够尝试重传或完全取消当前的请求。

    FIBRE CHANNEL OVER ETHERNET (FCoE) ZONING IN A DISTRIBUTED ETHERNET SWITCH
    9.
    发明申请
    FIBRE CHANNEL OVER ETHERNET (FCoE) ZONING IN A DISTRIBUTED ETHERNET SWITCH 有权
    分布式以太网交换机中的以太网（FCoE）光纤通道

    公开(公告)号：US20150334017A1

    公开(公告)日：2015-11-19

    申请号：US14277434

    申请日：2014-05-14

    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

    Inventor： Joachim FENKES ,  Henry J. MAY ,  Christoph RAISCH ,  Stefan ROSCHER ,  Alexander SCHMIDT ,  Daniel SENTLER

    IPC: H04L12/741 ,  H04L12/931 ,  H04L12/947

    CPC classification number: H04L49/25 ,  H04L12/6418 ,  H04L45/745 ,  H04L49/351

    Abstract: Systems, methods, and computer program products to perform an operation comprising, receiving a login request from an endpoint connected to first physical port of a first switch module of a distributed network switch, wherein the distributed network switch comprises a plurality of switch modules, wherein each switch module comprises a plurality of ASICs, responsive to the login request, storing, in a FCDF database, an entry comprising an identifier of the first physical port and a unique identifier of the endpoint, and responsive to receiving, from a cFCF, a zoning update comprising the unique identifier of the endpoint and an FCID for the endpoint, storing the FCID in the FCDF database entry for the endpoint, identifying a first ASIC, of the plurality of ASICs of the first switch module, connected to the first physical port, and updating a zoning table of the first ASIC to include the zoning update.

    Abstract translation: 用于执行操作的系统，方法和计算机程序产品，包括：从连接到分布式网络交换机的第一交换机模块的第一物理端口的端点接收登录请求，其中所述分布式网络交换机包括多个交换机模块，其中 每个交换机模块包括多个ASIC，响应登录请求，在FCDF数据库中存储包括第一物理端口的标识符和端点的唯一标识符的条目，并且响应于从cFCF接收到 分区更新包括端点的唯一标识符和端点的FCID，将FCID存储在端点的FCDF数据库条目中，识别第一交换机模块的多个ASIC中连接到第一物理端口的第一ASIC 并且更新第一ASIC的分区表以包括分区更新。

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