公开(公告)号：US07586850B2

公开(公告)日：2009-09-08

申请号：US11064550

申请日：2005-02-23

申请人： Bruce Gregory Warren ,  William P. Goodwin ,  Terrence R. Doherty ,  Carl Joseph Mies

发明人： Bruce Gregory Warren ,  William P. Goodwin ,  Terrence R. Doherty ,  Carl Joseph Mies

IPC分类号： H04L12/26

CPC分类号： H04L49/508 ,  H04L49/357

摘要： A method is disclosed for maintaining a table of recent accesses for each port for use in predicting whether a request for data from a source device is likely to be sent to a high speed or low speed destination device. The table of recent accesses lists every source device attached to that port and the speed of the destination device with the most recent access to each source device. When an OPN primitive is received at the source port, the source device is identified and used with the table of recent accesses to predict whether the destination device is likely to be high speed or low speed, and ultimately whether to send data from the source device or reject the request.

摘要翻译： 公开了一种用于维护每个端口的最近访问的表的方法，用于预测来自源设备的数据的请求是否可能被发送到高速或低速目的地设备。 最近访问表列出了连接到该端口的每个源设备和目标设备的速度，最近访问每个源设备。 当在源端口接收到OPN原语时，源设备被识别并与最近的访问表一起使用以预测目的地设备是否可能是高速或低速的，并且最终是否从源设备发送数据 或拒绝该请求。

公开(公告)号：US07382790B2

公开(公告)日：2008-06-03

申请号：US10617148

申请日：2003-07-10

申请人： Bruce Gregory Warren ,  William P. Goodwin ,  Carl Mies ,  Bruce E. Johnson ,  Michael L. White ,  Warren Eng

发明人： Bruce Gregory Warren ,  William P. Goodwin ,  Carl Mies ,  Bruce E. Johnson ,  Michael L. White ,  Warren Eng

IPC分类号： H04L12/28

CPC分类号： H04L12/4637 ,  H04L12/433

摘要： Methods and apparatus for switching Fibre Channel Arbitrated Loop Systems is provided between a plurality of Fibre Channel Loop devices. In one aspect of the invention, the system switches based at least in part on arbitrated loop primitives. An exemplary interconnect system may include a first port and a second port, both including port logic to monitor certain arbitrated loop primitives, a connectivity apparatus, a route determination apparatus including a routing table consisting of ALPA addresses and their associated ports, the route determination apparatus coupled to each port and the connectivity apparatus, where the connectivity apparatus creates paths between the ports based on arbitrated loop primitives. In one embodiment, the connectivity apparatus is a crossbar switch. Examples of the arbitrated loop primitives that cause the switch to create paths between ports includes one or more of the following: ARB, OPN and CLS. In yet other aspects, the system ensures device access fairness through one or more techniques, including a rotating priority system, a counter to count the number of OPNs, especially sequential OPNs, and/or priority based on port type. Device zoning may be implemented. In one implementation, the system includes trunking such that frames may be transferred on multiple ports.

摘要翻译： 在多个光纤通道环路设备之间提供用于交换光纤通道仲裁环路系统的方法和设备。 在本发明的一个方面，系统至少部分地基于仲裁的循环原语来切换。 示例性互连系统可以包括第一端口和第二端口，两者都包括用于监视某些仲裁环路原语的端口逻辑，连接装置，包括由ALPA地址及其相关联的端口组成的路由表的路由确定装置，路由确定装置 耦合到每个端口和连接装置，其中连接装置基于仲裁的循环基元在端口之间创建路径。 在一个实施例中，连接装置是交叉开关。 导致交换机在端口之间创建路径的仲裁循环图元的示例包括以下一个或多个：ARB，OPN和CLS。 在另一方面，该系统通过一种或多种技术来确保设备访问的公平性，包括旋转优先级系统，计数OPN数量的计数器，特别是连续的OPN，和/或基于端口类型的优先级。 可以实现设备分区。 在一个实现中，系统包括中继，使得帧可以在多个端口上传送。

公开(公告)号：US07403481B1

公开(公告)日：2008-07-22

申请号：US10769580

申请日：2004-01-30

申请人： William P. Goodwin

发明人： William P. Goodwin

IPC分类号： G01R31/08

CPC分类号： H04L12/66

摘要： Lockup conditions are solved while trunking in Fibre Channel switched arbitrated loop systems. Within a particular switch, a particular combination of pending OPN conditions is detected, indicating a lockup condition. At least one of the detected pending OPN conditions is closed, which alleviates the lockup condition.

摘要翻译： 在光纤通道交换仲裁环路系统中进行中继时解锁。 在特定的交换机内，检测到未决的OPN条件的特定组合，指示锁定条件。 检测到的待处理OPN条件中的至少一个被关闭，这减轻了锁定条件。