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2. 发明授权

US07630300B2 Methods and apparatus for trunking in fibre channel arbitrated loop systems 有权
标题翻译：在光纤通道仲裁环路系统中进行中继的方法和装置
公开(公告)号：US07630300B2
公开(公告)日：2009-12-08
申请号：US10617149
申请日：2003-07-10
申请人： Bruce Gregory Warren , William Goodwin , Carl Mies , Thomas Hammond-Doel , Michael L. White
发明人： Bruce Gregory Warren , William Goodwin , Carl Mies , Thomas Hammond-Doel , Michael L. White
IPC分类号： H04L12/28 , H04J14/00
CPC分类号： H04L45/245 , H04L12/433 , H04L41/0681 , H04L43/0817 , H04L45/00 , H04L45/28 , H04L45/60 , H04L47/122 , H04L49/357 , Y02D50/30
摘要： Methods and apparatus for switching Fiber Channel Arbitrated Loop Systems is provided between a plurality of Fiber 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。

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