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1. 发明申请

US20090141657A1 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
标题翻译：光纤通道开关，在不同的织物上启用终端设备，以便在保留其独特的光纤通道DOMAIN_ID的情况下与另一个通信
公开(公告)号：US20090141657A1
公开(公告)日：2009-06-04
申请号：US12343843
申请日：2008-12-24
申请人： Dinesh G. Dutt , Thomas Edsall , Ankur Jain , Silvano Gai , Subrata Banerjee , Davide Bergamasco , Bruno Raimondo , Rajeev Bhardwaj
发明人： Dinesh G. Dutt , Thomas Edsall , Ankur Jain , Silvano Gai , Subrata Banerjee , Davide Bergamasco , Bruno Raimondo , Rajeev Bhardwaj
IPC分类号： H04L12/28 , G06F15/173 , H04L12/56
CPC分类号： H04L67/1097 , H04L45/04 , H04L45/74 , 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，使得不同结构中的终端设备能够彼此通信，同时保留其独特的光纤通道Domain_ID。开关耦合到具有第一组端部装置的第一织物和具有第二组端部装置的第二织物。交换机被配置为使用与第一组终端设备相关联的第二组终端设备的第一组终端设备与第一组织相关联的第一组终端设备进行通信，使用第一组和第二组端点中的每一个的唯一Domain_ID 设备。在本发明的一个实施例中，第一和第二织物分别是第一和第二虚拟存储阵列网络（VSAN）。在替代实施例中，第一织物和第二织物是分离的物理织物。

2. 发明授权

US08625460B2 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
标题翻译：光纤通道交换机可使不同结构中的终端设备彼此通信，同时保留其独特的光纤通道域ID
公开(公告)号：US08625460B2
公开(公告)日：2014-01-07
申请号：US12975072
申请日：2010-12-21
申请人： Dinesh G. Dutt , Thomas Edsall , Ankur Jain , Silvano Gai , Subrata Banerjee , Davide Bergamasco , Bruno Raimondo , Rajeev Bhardwaj
发明人： Dinesh G. Dutt , Thomas Edsall , Ankur Jain , Silvano Gai , Subrata Banerjee , Davide Bergamasco , Bruno Raimondo , Rajeev Bhardwaj
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L67/1097 , H04L45/04 , H04L45/74 , H04L2212/00
摘要： A Fiber Channel Switch which enables end devices in different Fabrics to communicate with one another while retaining their unique Fiber 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，使得不同结构中的终端设备能够彼此通信，同时保留其独特的光纤通道Domain_ID。开关耦合到具有第一组端部装置的第一织物和具有第二组端部装置的第二织物。交换机被配置为使用与第一组终端设备相关联的第二组终端设备的第一组终端设备与第一组织相关联的第一组终端设备进行通信，使用第一组和第二组端点中的每一个的唯一Domain_ID 设备。在本发明的一个实施例中，第一和第二织物分别是第一和第二虚拟存储阵列网络（VSAN）。在替代实施例中，第一织物和第二织物是分离的物理织物。

3. 发明授权

US07499410B2 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
标题翻译：光纤通道交换机可使不同结构中的终端设备彼此通信，同时保留其独特的光纤通道域ID
公开(公告)号：US07499410B2
公开(公告)日：2009-03-03
申请号：US10609442
申请日：2003-06-26
申请人： Dinesh G. Dutt , Thomas Edsall , Ankur Jain , Silvano Gai , Subrata Banerjee , Davide Bergamasco , Bruno Raimondo , Rajeev Bhardwaj
发明人： Dinesh G. Dutt , Thomas Edsall , Ankur Jain , Silvano Gai , Subrata Banerjee , Davide Bergamasco , Bruno Raimondo , Rajeev Bhardwaj
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L67/1097 , H04L45/04 , H04L45/74 , H04L2212/00
摘要： An 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：光纤通道交换机使得不同结构中的终端设备可以彼此通信，同时保留其独特的光纤通道Domain_ID。开关耦合到具有第一组端部装置的第一织物和具有第二组端部装置的第二织物。交换机被配置为使用与第一组终端设备相关联的第二组终端设备的第一组终端设备与第一组织相关联的第一组终端设备进行通信，使用第一组和第二组端点中的每一个的唯一Domain_ID 设备。在本发明的一个实施例中，第一和第二织物分别是第一和第二虚拟存储阵列网络（VSAN）。在替代实施例中，第一织物和第二织物是分离的物理织物。

4. 发明授权

US07876711B2 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
标题翻译：光纤通道交换机可使不同结构中的终端设备彼此通信，同时保留其独特的光纤通道域ID
公开(公告)号：US07876711B2
公开(公告)日：2011-01-25
申请号：US12343843
申请日：2008-12-24
申请人： Dinesh G. Dutt , Thomas Edsall , Ankur Jain , Silvano Gai , Subrata Banerjee , Davide Bergamasco , Bruno Raimondo , Rajeev Bharadwaj
发明人： Dinesh G. Dutt , Thomas Edsall , Ankur Jain , Silvano Gai , Subrata Banerjee , Davide Bergamasco , Bruno Raimondo , Rajeev Bharadwaj
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L67/1097 , H04L45/04 , H04L45/74 , 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：光纤通道交换机使得不同结构中的终端设备能够彼此通信，同时保留其独特的光纤通道域ID。开关耦合到具有第一组端部装置的第一织物和具有第二组端部装置的第二织物。交换机被配置为使用与第一组终端设备相关联的第二组终端设备的第一组终端设备与第一组织相关联的第一组终端设备进行通信，使用第一组和第二组端点中的每一个的唯一Domain_ID 设备。在本发明的一个实施例中，第一和第二织物分别是第一和第二虚拟存储阵列网络（VSAN）。在替代实施例中，第一织物和第二织物是分离的物理织物。

5. 发明授权

US07934023B2 Apparatus and method for performing fast fibre channel write operations over relatively high latency networks 有权
标题翻译：用于在相对高延迟的网络上执行快速光纤通道写入操作的装置和方法
公开(公告)号：US07934023B2
公开(公告)日：2011-04-26
申请号：US10726269
申请日：2003-12-01
申请人： Murali Basavaiah , Satish Ambati , Magesh Iyengar , Thomas Edsall , Dinesh G. Dutt , Silvano Gai , Varagur V. Chandrasekaran
发明人： Murali Basavaiah , Satish Ambati , Magesh Iyengar , Thomas Edsall , Dinesh G. Dutt , Silvano Gai , Varagur V. Chandrasekaran
IPC分类号： G06F3/00
CPC分类号： G06F3/0659 , G06F3/0613 , G06F3/0635 , G06F3/067 , H04L67/1097
摘要： A method and apparatus to improve the performance of a SCSI write over a high latency network. The apparatus includes a first Switch close to the initiator in a first SAN and a second Switch close to the target in a second SAN. In various embodiments, the two Switches are border switches connecting their respective SANs to a relatively high latency network between the two SANs. In addition, the initiator can be either directly connected or indirectly connected to the first Switch in the first SAN. The target can also be either directly or indirectly connected to the second Switch in the second SAN. During operation, the method includes the first Switch sending Transfer Ready (Xfr_rdy) frame(s) based on buffer availability to the initiating Host in response to a SCSI Write command from the Host directed to the target. The first and second Switches then coordinate with one another by sending Transfer Ready commands to each other independent of the target's knowledge. The second switch buffers the data received from the Host until the target indicates it is ready to receive the data. Since the Switches send frames to the initiating Host independent of the target, the Switches manipulate the OX_ID and RX_ID fields in the Fiber Channel header of the various commands associated with the SCSI Write. The OX_ID and RX_ID fields are manipulated so as to trap the commands and so that the Switches can keep track of the various commands associated with the SCSI write.
摘要翻译：一种通过高延迟网络提高SCSI写入性能的方法和装置。该设备包括靠近第一SAN中的发起者的第一交换机和在第二SAN中靠近目标的第二交换机。在各种实施例中，两个交换机是将它们各自的SAN连接到两个SAN之间相对较高延迟的网络的边界交换机。此外，启动器可以直接连接或间接连接到第一个SAN中的第一个交换机。目标也可以直接或间接地连接到第二个SAN中的第二个交换机。在操作期间，该方法包括响应于从指向目标的主机的SCSI写入命令，基于发起主机的缓冲区可用性的第一个交换机发送传输就绪（Xfr_rdy）帧。第一个和第二个交换机然后通过发送传输就绪命令相互协调，独立于目标的知识。第二个交换机缓存从主机接收的数据，直到目标指示它准备好接收数据。由于交换机将发送帧发送到独立于目标的发起主机，交换机将处理与SCSI写入相关联的各种命令的光纤通道报头中的OX_ID和RX_ID字段。操作OX_ID和RX_ID字段以捕获命令，以便交换机可以跟踪与SCSI写入相关联的各种命令。

6. 发明授权

US6032194A Method and apparatus for rapidly reconfiguring computer networks 失效
标题翻译：快速重新配置计算机网络的方法和装置
公开(公告)号：US6032194A
公开(公告)日：2000-02-29
申请号：US998412
申请日：1997-12-24
申请人： Silvano Gai , Keith McCloghrie , Dinesh G. Dutt
发明人： Silvano Gai , Keith McCloghrie , Dinesh G. Dutt
IPC分类号： H04L12/24 , H04L12/46 , H04L12/56 , G06F15/18 , G06F13/00
CPC分类号： H04L45/48 , H04L12/462 , H04L41/083 , H04L45/02 , H04L45/28
摘要： A method that rapidly reconfigures a computer network having a plurality of devices executing the spanning tree algorithm. First, one or more devices are configured and arranged so that one port, providing connectivity to the root, is in the forwarding state and the remaining ports, providing connectivity to the root, are in the blocked state. Next, one or more of the blocked ports are designated as back-up ports. Upon detection of a failure at the active forwarding port, one of the back-up ports immediately transitions from blocked to forwarding, thereby becoming the new active port for the device. Following the transition to a new active port, dummy multicast messages are transmitted, each containing the source address of an entity directly coupled to the affected device or downstream thereof. By examining the dummy multicast messages, other devices in the network learn to use to the new forwarding port of the affected device. Rapid reconfiguration of the network is also provided upon detection of a new or repaired link or device representing a better path toward the root. The method is also compatible with networks supporting virtual local area network (VLAN) designations and allows load balancing among different VLANs.
摘要翻译：一种快速重新配置具有执行生成树算法的多个设备的计算机网络的方法。首先，配置和布置一个或多个设备，使得提供与根的连接的一个端口处于转发状态，并且提供与根的连接的其余端口处于阻塞状态。接下来，一个或多个阻塞端口被指定为备份端口。在主动转发端口检测到故障后，其中一个备份端口立即从阻塞转发到转发，从而成为设备的新的活动端口。在转换到新的活动端口之后，传输虚拟多播消息，每个消息包含直接耦合到受影响设备或其下游的实体的源地址。通过检查虚拟组播消息，网络中的其他设备学习使用受影响设备的新转发端口。在检测到新的或修复的链接或设备，表示朝向根的更好路径时，也提供网络的快速重新配置。该方法还与支持虚拟局域网（VLAN）的网络兼容，并允许不同VLAN之间的负载平衡。

7. 发明授权

US07848264B1 Method and apparatus for rapidly reconfiguring computer networks 有权
标题翻译：快速重新配置计算机网络的方法和装置
公开(公告)号：US07848264B1
公开(公告)日：2010-12-07
申请号：US11113600
申请日：2005-04-25
申请人： Silvano Gai , Keith McCloghrie , Dinesh G. Dutt
发明人： Silvano Gai , Keith McCloghrie , Dinesh G. Dutt
IPC分类号： H04L12/28
CPC分类号： H04L12/4641
摘要： A method for operating a computer network includes: a become_root_primary command is issued to a first router to set an ID so that a spanning tree protocol (STP) selects the first router as a primary root router; a become_root_secondary command is issued to a second router to set an ID so that STP selects the second router as a secondary root router; transitioning, in response to failure of the first router, the second router to become the root router. An enable_uplinkfast command is issued to a router, and the router selects a backup designated port for a designated port, and selects a backup root port for a root port. Ports transmit BPDU messages as heartbeat messages, and a failure to detect the BPDU messages results in a backup port assuming the role of a port not detecting the BPDU messages.
摘要翻译：一种用于操作计算机网络的方法，包括：become_root_primary命令发布到一个第一路由器，使得生成树协议（STP）选择第一路由器作为主要根路由器设定的ID; 一个become_root_secondary命令发布到第二路由器设置一个ID，使得STP选择第二路由器作为二次根路由器; 转变，在响应于所述第一路由器的故障时，第二路由器成为根路由器。向路由器发出enable_uplinkfast命令，路由器为指定端口选择备份指定端口，并为根端口选择备份根端口。端口作为心跳消息发送BPDU消息，并且无法检测到BPDU消息导致备份端口假定端口的角色未检测到BPDU消息。

8. 发明授权

US07512123B1 Fibre channel fabric and switches with flexible prefix addressing 有权
标题翻译：光纤通道结构和交换机具有灵活的前缀寻址
公开(公告)号：US07512123B1
公开(公告)日：2009-03-31
申请号：US10778672
申请日：2004-02-13
申请人： Claudio DeSanti , Silvano Gai , Dante Malagrino , Dinesh G. Dutt
发明人： Claudio DeSanti , Silvano Gai , Dante Malagrino , Dinesh G. Dutt
IPC分类号： H04L12/28
CPC分类号： H04L61/6045 , H04L29/12452 , H04L29/12801 , H04L29/12886 , H04L45/00 , H04L45/54 , H04L49/252 , H04L49/357 , H04L61/2546 , H04L61/6004
摘要： A way to assign flexible prefixes to Switches in Fiber Channel Fabrics while using the currently defined FC_ID address space. This allows end devices in different Fiber Channel Fabrics to communicate with one another, without requiring modifications to existing end devices, nor to perform Network Address Translation between Fabrics. The existing address space for each Switch includes a dynamically configurable number of host bits sufficient to address all the end devices coupled to the Switch and the Switch itself. The remaining bits, called the Switch prefix, are used to identify the Switch in the switching Fabric. In an alternative embodiment, the Switch prefix bits may be further configured into a first sub-set of bits used to identify a specific Fabric (Fabric prefix) and a second sub-set of bits used to identify the Switch in the Fabric (Switch_ID). The flexible addressing scheme enables end devices in different Fabrics to communicate with one another without expanding the Fiber Channel address space or the need to perform Network Address Translations.
摘要翻译：在使用当前定义的FC_ID地址空间的同时，可以为光纤通道结构中的交换机分配灵活的前缀。这允许不同光纤通道结构中的终端设备彼此进行通信，而不需要修改现有的终端设备，也不需要在Fabric之间执行网络地址转换。每个交换机的现有地址空间包括可动态配置的主机位数，足以解决耦合到交换机和交换机本身的所有终端设备。称为交换机前缀的其余位用于标识交换结构中的交换机。在替代实施例中，交换机前缀比特可以被进一步配置为用于标识特定结构（结构前缀）的第一比特组，以及用于标识组合中的交换机（Switch_ID）的第二比特子组，。灵活的寻址方案使不同结构中的终端设备能够彼此通信，而不会扩展光纤通道地址空间或者需要执行网络地址转换。

9. 发明授权

US06976088B1 Method and apparatus for rapidly reconfiguring bridged networks using a spanning tree algorithm 有权
标题翻译：使用生成树算法快速重新配置桥接网络的方法和装置
公开(公告)号：US06976088B1
公开(公告)日：2005-12-13
申请号：US10259959
申请日：2002-09-27
申请人： Silvano Gai , Keith McCloghrie , Dinesh G. Dutt
发明人： Silvano Gai , Keith McCloghrie , Dinesh G. Dutt
IPC分类号： G06F15/173 , H04L12/28 , H04L12/46
CPC分类号： H04L12/4641
摘要： A method that rapidly reconfigures a computer network having a plurality of devices executing the spanning tree algorithm. First, one or more devices are configured and arranged so that one port, providing connectivity to the root, is in the forwarding state and the remaining ports, providing connectivity to the root, are in the blocked state. Next, one or more of the blocked ports are designated as back-up ports. Upon detection of a failure at the active forwarding port, one of the back-up ports immediately transitions from blocked to forwarding, thereby becoming the new active port for the device. Following the transition to a new active port, dummy multicast messages are transmitted, each containing the source address of an entity directly coupled to the affected device or downstream thereof. By examining the dummy multicast messages, other devices in the network learn to use to the new forwarding port of the affected device. Rapid reconfiguration of the network is also provided upon detection of a new or repaired link or device representing a better path toward the root. The method is also compatible with networks supporting virtual local area network (VLAN) designations and allows load balancing among different VLANs.
摘要翻译：一种快速重新配置具有执行生成树算法的多个设备的计算机网络的方法。首先，配置和布置一个或多个设备，使得提供与根的连接的一个端口处于转发状态，并且提供与根的连接的其余端口处于阻塞状态。接下来，一个或多个阻塞端口被指定为备份端口。在主动转发端口检测到故障后，其中一个备份端口立即从阻塞转发到转发，从而成为设备的新的活动端口。在转换到新的活动端口之后，传输虚拟多播消息，每个消息包含直接耦合到受影响设备或其下游的实体的源地址。通过检查虚拟组播消息，网络中的其他设备学习使用受影响设备的新转发端口。在检测到新的或修复的链接或设备，表示朝向根的更好路径时，也提供网络的快速重新配置。该方法还与支持虚拟局域网（VLAN）的网络兼容，并允许不同VLAN之间的负载平衡。

10. 发明申请

US20090162058A1 FIBRE CHANNEL FABRIC AND SWITCHES WITH FLEXIBLE PREFIX ADDRESSING 有权
标题翻译：具有灵活的前缀寻址的光纤通道织物和开关
公开(公告)号：US20090162058A1
公开(公告)日：2009-06-25
申请号：US12396302
申请日：2009-03-02
申请人： Claudio DeSanti , Silvano Gai , Dante Malagrino , Dinesh G. Dutt
发明人： Claudio DeSanti , Silvano Gai , Dante Malagrino , Dinesh G. Dutt
IPC分类号： H04J14/00
CPC分类号： H04L61/6045 , H04L29/12452 , H04L29/12801 , H04L29/12886 , H04L45/00 , H04L45/54 , H04L49/252 , H04L49/357 , H04L61/2546 , H04L61/6004
摘要： A way to assign flexible prefixes to Switches in Fibre Channel Fabrics while using the currently defined FC_ID address space. This allows end devices in different Fibre Channel Fabrics to communicate with one another, without requiring modifications to existing end devices, nor to perform Network Address Translation between Fabrics. The existing address space for each Switch includes a dynamically configurable number of host bits sufficient to address all the end devices coupled to the Switch and the Switch itself. The remaining bits, called the Switch prefix, are used to identify the Switch in the switching Fabric. In an alternative embodiment, the Switch prefix bits may be further configured into a first sub-set of bits used to identify a specific Fabric (Fabric prefix) and a second sub-set of bits used to identify the Switch in the Fabric (Switch_ID). The flexible addressing scheme enables end devices in different Fabrics to communicate with one another without expanding the Fibre Channel address space or the need to perform Network Address Translations.
摘要翻译：在使用当前定义的FC_ID地址空间的同时，可以为光纤通道结构中的交换机分配灵活的前缀。这允许不同光纤通道结构中的终端设备彼此进行通信，而不需要修改现有的终端设备，也不需要在Fabric之间执行网络地址转换。每个交换机的现有地址空间包括可动态配置的主机位数，足以解决耦合到交换机和交换机本身的所有终端设备。称为交换机前缀的其余位用于标识交换结构中的交换机。在替代实施例中，交换机前缀比特可以进一步配置为用于标识特定结构（结构前缀）的第一比特组，以及用于标识组合中的交换机（Switch_ID）的第二比特子集合，。灵活的寻址方案使不同结构中的终端设备能够彼此通信，而不会扩展光纤通道地址空间或者需要执行网络地址转换。

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