Persistent Principal Switch for Fibre Channel Fabric
    21.
    发明申请
    Persistent Principal Switch for Fibre Channel Fabric 有权
    光纤通道结构的持续主开关

    公开(公告)号:US20130208625A1

    公开(公告)日:2013-08-15

    申请号:US13396831

    申请日:2012-02-15

    IPC分类号: H04L12/28

    CPC分类号: H04L49/357

    摘要: According to one aspect, a Fibre Channel (FC) switch that is currently serving as a Principal Switch among a plurality of FC switches in a FC Fabric sends an Exchange Fabric Parameters (EFP) frame having an empty domain identifier list to neighboring FC switches during a first portion a Principal Switch Selection phase. During a second portion of the Principal Switch Selection phase that is after the first portion, the first Fibre Channel switch sends to neighboring FC switches an EFP frame having a non-empty domain identifier list to indicate to the neighboring FC switches that the first FC switch is to remain serving as the Principal Switch in the FC Fabric.

    摘要翻译: 根据一个方面,在FC Fabric中的多个FC交换机之中当前用作主交换机的光纤通道(FC)交换机在相邻FC交换机之间发送具有空域标识符列表的交换结构参数(EFP)帧到相邻的FC交换机 主开关选择阶段的第一部分。 在第一部分之后的主交换机选择阶段的第二部分期间,第一光纤通道交换机向相邻FC交换机发送具有非空域标识符列表的EFP帧,以向相邻FC交换机指示第一FC交换机 将继续担任FC Fabric中的主交换机。

    Merging a Stand-Alone Switch to a Fibre Channel Network
    22.
    发明申请
    Merging a Stand-Alone Switch to a Fibre Channel Network 有权
    将独立交换机并入光纤通道网络

    公开(公告)号:US20130010638A1

    公开(公告)日:2013-01-10

    申请号:US13176940

    申请日:2011-07-06

    IPC分类号: H04L12/28

    CPC分类号: H04L49/357 H04L49/65

    摘要: A Fibre Channel (FC) switch and related methods are provided for merging the FC switch with an existing FC network. During a merge process of a stand-alone switch with an FC network, a first Exchange Fabric Parameters (EFP) frame is sent from the stand-alone switch to an FC switch in the existing FC network. The first EFP frame has an empty domain identifier (ID) list. The stand-alone switch receives a second EFP frame from the FC switch. The second EFP frame contains a domain ID list of domain IDs already in use in the FC network. The stand-alone switch compares the domain ID list in the second EFP frame with a stored list of one or more domain IDs associated with the stand-alone switch to determine if there is a domain ID overlap or conflict. If no conflict is detected, the stand-alone switch merges with the existing network without initiating a Build Fabric phase or a Principal Switch Selection phase that could cause disruption of traffic in the network.

    摘要翻译: 提供了光纤通道(FC)交换机和相关方法,用于将FC交换机与现有的FC网络进行合并。 在具有FC网络的独立交换机的合并过程中,第一个Exchange Fabric参数(EFP)帧从独立交换机发送到现有FC网络中的FC交换机。 第一个EFP帧具有空域标识符(ID)列表。 独立交换机从FC交换机接收第二个EFP帧。 第二个EFP帧包含已在FC网络中使用的域ID的域ID列表。 独立交换机将第二EFP帧中的域ID列表与与独立交换机相关联的一个或多个域ID的存储列表进行比较,以确定是否存在域ID重叠或冲突。 如果没有检测到冲突,则独立交换机与现有网络合并,而不会发起可能导致网络流量中断的构建结构阶段或主交换机选择阶段。

    Less loss in-order delivery protocol for fibre connection architecture
    23.
    发明授权
    Less loss in-order delivery protocol for fibre connection architecture 有权
    光纤连接体系结构的丢失按顺序传送协议较少

    公开(公告)号:US08154990B2

    公开(公告)日:2012-04-10

    申请号:US12480447

    申请日:2009-06-08

    IPC分类号: G01R31/08

    摘要: Methods and apparatus for providing in-order delivery in Fibre Channel (FC) fabric are disclosed. A topological change between a first switch and a second switch is evaluated to determine whether the topological change may result in out-of-order delivery. If it is determined that the topological change may result in out-of-order delivery, a flush frame is sent to the second switch and stop-on-mark is performed on all interfaces of affected links. Upon receiving the flush frame, the second switch drains all virtual output queues (VOQs) and sends an acknowledgement frame to the first switch. The first switch resumes in-order-delivery in an affected link after receiving the acknowledgement frame or expiration of a lifetime time of a frame.

    摘要翻译: 公开了在光纤通道(FC)结构中提供按顺序传送的方法和设备。 评估第一开关和第二开关之间的拓扑变化以确定拓扑变化是否可能导致无序传送。 如果确定拓扑变化可能导致无序传送,则将冲洗帧发送到第二交换机,并且在受影响的链路的所有接口上执行停止标记。 在接收到刷新帧时,第二开关排出所有虚拟输出队列(VOQ),并向第一交换机发送确认帧。 第一个交换机在接收到确认帧或帧的终身时间到期后,在受影响的链路中恢复按顺序传送。

    SUB-AREA FCID ALLOCATION SCHEME
    24.
    发明申请
    SUB-AREA FCID ALLOCATION SCHEME 有权
    子域FCID分配方案

    公开(公告)号:US20110219183A1

    公开(公告)日:2011-09-08

    申请号:US12716955

    申请日:2010-03-03

    摘要: Certain embodiments of the present disclosure generally relate to allocating a sub-area of Fibre Channel addresses (FCIDs) to a device. A range of addresses may be assigned to the device using a mask address, where the most significant bits represent a mask and the least significant bits represent a sub-range of FCIDs available to be assigned to the device. Therefore, routing information may be stored efficiently in a Ternary Content Addressable Memory (TCAM) by storing a single entry in the TCAM for each sub-area of FCIDs allocated to a device, instead of storing an entry for each FCID. The single entry may indicate the mask address and the width of the mask.

    摘要翻译: 本公开的某些实施例一般涉及将光纤通道地址(FCID)的子区域分配给设备。 可以使用掩码地址向设备分配一系列地址,其中最高有效位表示掩码,最低有效位表示可用于分配给设备的FCID的子范围。 因此,通过为分配给设备的FCID的每个子区域存储TCAM中的单个条目而不是存储每个FCID的条目,可以将路由信息有效地存储在三元内容可寻址存储器(TCAM)中。 单个条目可以指示掩码地址和掩码的宽度。

    Hop cost as secondary metric for equal cost multi-paths
    25.
    发明授权
    Hop cost as secondary metric for equal cost multi-paths 有权
    Hop成本作为等成本多路径的次要度量

    公开(公告)号:US07995481B2

    公开(公告)日:2011-08-09

    申请号:US12221143

    申请日:2008-07-31

    IPC分类号: G01R31/08

    摘要: Systems, methods, and other embodiments associated with computing path costs based on link cost as a primary metric and hop cost as a secondary metric are presented. The secondary metric facilitates distinguishing between what would be equal cost multi-paths if only link cost was employed. One example method includes computing a modified link cost for a plurality of paths between switches. The example method may also include determining a lowest modified link cost associated with a path between the switches. The example method may also include providing a signal identifying the lowest modified link cost.

    摘要翻译: 呈现了基于作为主要度量的链路成本和作为次要度量的跳跃成本的计算路径成本的系统,方法和其他实施例。 如果仅使用链路成本,次要度量有助于区分什么是相等的成本多路径。 一个示例性方法包括计算交换机之间的多个路径的修改的链路成本。 示例性方法还可以包括确定与开关之间的路径相关联的最低修改的链路成本。 示例性方法还可以包括提供标识最低修改的链路成本的信号。

    LESS LOSS IN-ORDER DELIVERY PROTOCOL FOR FIBRE CONNECTION ARCHITECTURE
    26.
    发明申请
    LESS LOSS IN-ORDER DELIVERY PROTOCOL FOR FIBRE CONNECTION ARCHITECTURE 有权
    用于光纤连接架构的LOS LOS订单交付协议

    公开(公告)号:US20100310253A1

    公开(公告)日:2010-12-09

    申请号:US12480447

    申请日:2009-06-08

    IPC分类号: H04J14/00

    摘要: Methods and apparatus for providing in-order delivery in Fibre Channel (FC) fabric are disclosed. A topological change between a first switch and a second switch is evaluated to determine whether the topological change may result in out-of-order delivery. If it is determined that the topological change may result in out-of-order delivery, a flush frame is sent to the second switch and stop-on-mark is performed on all interfaces of affected links. Upon receiving the flush frame, the second switch drains all virtual output queues (VOQs) and sends an acknowledgement frame to the first switch. The first switch resumes in-order-delivery in an affected link after receiving the acknowledgement frame or expiration of a lifetime time of a frame.

    摘要翻译: 公开了在光纤通道(FC)结构中提供按顺序传送的方法和设备。 评估第一开关和第二开关之间的拓扑变化以确定拓扑变化是否可能导致无序传送。 如果确定拓扑变化可能导致无序传送,则将冲洗帧发送到第二交换机,并且在受影响的链路的所有接口上执行停止标记。 在接收到刷新帧时,第二开关排出所有虚拟输出队列(VOQ),并向第一交换机发送确认帧。 第一个交换机在接收到确认帧或帧的终身时间到期后,在受影响的链路中恢复按顺序传送。