公开(公告)号：US08811406B2

公开(公告)日：2014-08-19

申请号：US13420259

申请日：2012-03-14

申请人： Claude Basso ,  Todd A. Greenfield ,  Bruce M. Walk

发明人： Claude Basso ,  Todd A. Greenfield ,  Bruce M. Walk

IPC分类号： H04L12/28 ,  H04L12/54 ,  H04J3/14 ,  H04W72/00

CPC分类号： H04L45/16 ,  H04L49/201 ,  H04L49/351 ,  H04L49/70

摘要： A distributed switch may include a plurality of sub-switches. These sub-switches may be arranged in a hierarchy that increases the available bandwidth for transmitting multicast data frames across the switch fabric. Moreover, the distributed switch may be compatible with link aggregation where multiple physical connections are grouped together to create an aggregated (logical) link. Link aggregation requires similar data frames to use the same data path when traversing the distributed switch. With a unicast data frame, the sub-switch in the distributed switch that receives the data frame typically identifies the destination port (during a process called link selection) and forwards the data frame to the sub-switch containing that port. However, with multicast data frames, instead of the receiving sub-switch performing link selection to determine the destination port, link selection may be done by a different sub-switch or not done at all.

公开(公告)号：US20130208721A1

公开(公告)日：2013-08-15

申请号：US13372921

申请日：2012-02-14

申请人： William J. Armstrong ,  Claude Basso ,  Josep Cors ,  David R. Engebretsen ,  Paul E. Movall ,  Eric Thiemann ,  Colin B. Verrilli ,  Bruce M. Walk

发明人： William J. Armstrong ,  Claude Basso ,  Josep Cors ,  David R. Engebretsen ,  Paul E. Movall ,  Eric Thiemann ,  Colin B. Verrilli ,  Bruce M. Walk

IPC分类号： H04L12/56

CPC分类号： H04L45/44 ,  H04L49/355

摘要： Techniques are provided for packet routing in a distributed network switch. The distributed network switch includes multiple switch modules operatively connected to one another, and each switch module includes multiple bridge elements and a management controller. In one embodiment, a shared interface routing (SIR) framework is provided that includes an analysis and bifurcation layer, at least one packet interface, and an analysis assist layer. A packet is received over a first logical network and via a physical port, the packet being destined for at least a first application executing on the management controller. The analysis assist layer analyzes the packet to determine a reason code to assign to the packet. The analysis and bifurcation layer then analyzes the packet based at least in part on the reason code.

公开(公告)号：US08447909B2

公开(公告)日：2013-05-21

申请号：US12839099

申请日：2010-07-19

申请人： Michael J. Corrigan ,  David R. Engebretsen ,  Bruce M. Walk

发明人： Michael J. Corrigan ,  David R. Engebretsen ,  Bruce M. Walk

IPC分类号： G06F13/36 ,  G06F13/00

CPC分类号： G06F15/1735 ,  H04L12/433 ,  H04L12/4641 ,  H04L45/741 ,  H04L49/356 ,  H04L49/70

摘要： Systems and methods to perform a register access are described. A particular method includes receiving a data frame at a bridge element of a plurality of bridge elements in communication with a plurality of server computers. The data frame may include a register access request and may be forwarded from a controlling bridge in communication with the plurality of bridge elements. A register may be accessed and execution of the register access request may be initiated in response to receiving the data frame.

摘要翻译： 描述了执行寄存器访问的系统和方法。 一种特定方法包括在与多个服务器计算机通信的多个桥接元件的桥接元件处接收数据帧。 数据帧可以包括寄存器访问请求，并且可以从与多个桥接单元通信的控制桥转发。 可以访问寄存器，并且可以响应于接收到数据帧来启动寄存器访问请求的执行。

公开(公告)号：US20120017022A1

公开(公告)日：2012-01-19

申请号：US12839099

申请日：2010-07-19

申请人： Michael J. Corrigan ,  David R. Engebretsen ,  Bruce M. Walk

发明人： Michael J. Corrigan ,  David R. Engebretsen ,  Bruce M. Walk

IPC分类号： G06F13/36

CPC分类号： G06F15/1735 ,  H04L12/433 ,  H04L12/4641 ,  H04L45/741 ,  H04L49/356 ,  H04L49/70

摘要： Systems and methods to perform a register access are described. A particular method includes receiving a data frame at a bridge element of a plurality of bridge elements in communication with a plurality of server computers. The data frame may include a register access request and may be forwarded from a controlling bridge in communication with the plurality of bridge elements. A register may be accessed and execution of the register access request may be initiated in response to receiving the data frame.

摘要翻译： 描述了执行寄存器访问的系统和方法。 一种特定方法包括在与多个服务器计算机通信的多个桥接元件的桥接元件处接收数据帧。 数据帧可以包括寄存器访问请求，并且可以从与多个桥接单元通信的控制桥转发。 可以访问寄存器，并且可以响应于接收到数据帧来启动寄存器访问请求的执行。

公开(公告)号：US20110264610A1

公开(公告)日：2011-10-27

申请号：US12767506

申请日：2010-04-26

申请人： William J. Armstrong ,  Claude Basso ,  Josep Cors ,  David R. Engebretsen ,  Kyle A. Lucke ,  David A. Shedivy ,  Colin B. Verrilli ,  Bruce M. Walk

发明人： William J. Armstrong ,  Claude Basso ,  Josep Cors ,  David R. Engebretsen ,  Kyle A. Lucke ,  David A. Shedivy ,  Colin B. Verrilli ,  Bruce M. Walk

IPC分类号： G06F15/18 ,  G06F15/16

CPC分类号： G06F15/17312 ,  H04L12/4625

摘要： Systems and methods to forward data frames are provided. A particular apparatus may include a plurality of server computers and a distributed virtual bridge. The distributed virtual bridge may include a plurality of bridge elements coupled to the plurality of server computers and configured to forward a data frame between the plurality of server computers. The plurality of bridge elements may further be configured to automatically learn address data associated with the data frame. A controlling bridge may be coupled to the plurality of bridge elements. The controlling bridge may include a global forwarding table that is automatically updated to include the address data and is accessible to the plurality of bridge elements.

摘要翻译： 提供了转发数据帧的系统和方法。 特定装置可以包括多个服务器计算机和分布式虚拟桥。 分布式虚拟桥可以包括耦合到多个服务器计算机并被配置为在多个服务器计算机之间转发数据帧的多个桥接元件。 多个桥接元件还可被配置为自动学习与数据帧相关联的地址数据。 控制桥可以耦合到多个桥元件。 控制桥可以包括全局转发表，该全局转发表被自动更新以包括地址数据，并且可被多个桥元件访问。

公开(公告)号：US20110258340A1

公开(公告)日：2011-10-20

申请号：US12763306

申请日：2010-04-20

申请人： William J. Armstrong ,  Claude Basso ,  Josep Cors ,  David R. Engebretsen ,  Kyle A. Lucke ,  Jeffrey J. Lynch ,  Bruce M. Walk

发明人： William J. Armstrong ,  Claude Basso ,  Josep Cors ,  David R. Engebretsen ,  Kyle A. Lucke ,  Jeffrey J. Lynch ,  Bruce M. Walk

IPC分类号： G06F15/173

CPC分类号： H04L12/4625 ,  H04L45/586

摘要： Systems and methods to forward data frames are described. A particular method may include receiving a data frame at a switch of a plurality of networked switches coupled to a plurality of server computers. The data frame may be forwarded from a controlling bridge coupled to the plurality of networked switches. The data frame may be determined to include management data, and an operating parameter of the switch may be modified.

摘要翻译： 描述转发数据帧的系统和方法。 特定方法可以包括在耦合到多个服务器计算机的多个网络交换机的交换机处接收数据帧。 数据帧可以从耦合到多个网络交换机的控制桥转发。 可以将数据帧确定为包括管理数据，并且可以修改交换机的操作参数。

公开(公告)号：US07895383B2

公开(公告)日：2011-02-22

申请号：US12043361

申请日：2008-03-06

申请人： Thomas A. Gregg ,  Richard L. Arndt ,  Bruce L. Beukema ,  David Craddock ,  Ronald E. Fuhs ,  Steven L. Rogers ,  Donald W. Schmidt ,  Bruce M. Walk

发明人： Thomas A. Gregg ,  Richard L. Arndt ,  Bruce L. Beukema ,  David Craddock ,  Ronald E. Fuhs ,  Steven L. Rogers ,  Donald W. Schmidt ,  Bruce M. Walk

IPC分类号： G06F13/24 ,  G06F3/00 ,  G06F13/40

CPC分类号： G06F9/546 ,  G06F2209/548 ,  H04L49/901

摘要： An information processing system is provided which includes a plurality of system resources, and an event queue having a maximum number of entries. An event recording mechanism of the information processing system is operable to make entries regarding events in the event queue, wherein the entries are limited to a predetermined number of active entries in the event queue per each type of event per each of the system resources. In a particular embodiment, the number of entries per each type of event for each of the system resources is limited to one.

摘要翻译： 提供了包括多个系统资源的信息处理系统和具有最大数量的条目的事件队列。 信息处理系统的事件记录机制可操作用于对事件队列中的事件进行条目，其中每个系统资源每个事件类型事件限制事件队列中预定数量的活动条目。 在特定实施例中，每个系统资源的每种类型的事件的条目数量被限制为一个。

公开(公告)号：US07548964B2

公开(公告)日：2009-06-16

申请号：US11247872

申请日：2005-10-11

申请人： Richard L. Arndt ,  Bruce L. Beukema ,  David Craddock ,  Ronald E. Fuhs ,  Thomas A. Gregg ,  Donald W. Schmidt ,  Bruce M. Walk

发明人： Richard L. Arndt ,  Bruce L. Beukema ,  David Craddock ,  Ronald E. Fuhs ,  Thomas A. Gregg ,  Donald W. Schmidt ,  Bruce M. Walk

IPC分类号： G06F15/177 ,  G06F15/16 ,  G06F15/173 ,  G06F3/00 ,  G06F5/00 ,  H04L12/28 ,  H04L12/56

CPC分类号： H04L43/00 ,  H04L41/046 ,  H04L41/5009 ,  H04L43/0847

摘要： Performance counters are provided for virtualized network interfaces of communications networks, while minimizing the use of hardware resources. A virtualized network interface includes physical resources, as well as logical resources. Dedicated performance counters are provided for the physical resources of the virtualized network interface, as well as for logical partitions coupled to that interface, while non-dedicated performance counters are provided for the logical resources. This enables the provision of performance counters for virtualized network interfaces, while minimizing hardware resources consumed by those interfaces.

摘要翻译： 为通信网络的虚拟网络接口提供性能计数器，同时最大限度地减少硬件资源的使用。 虚拟化网络接口包括物理资源以及逻辑资源。 为虚拟化网络接口的物理资源以及耦合到该接口的逻辑分区提供专用性能计数器，同时为逻辑资源提供非专用性能计数器。 这使得能够为虚拟化网络接口提供性能计数器，同时最小化这些接口所消耗的硬件资源。

公开(公告)号：US5537658A

公开(公告)日：1996-07-16

申请号：US484612

申请日：1995-06-07

申请人： Brian E. Bakke ,  Daniel F. Moertl ,  Bruce M. Walk

发明人： Brian E. Bakke ,  Daniel F. Moertl ,  Bruce M. Walk

IPC分类号： G06F3/06 ,  G11B20/00 ,  G06F17/30

CPC分类号： G06F3/0601 ,  G11B20/00007 ,  G06F2003/0697

摘要： A distributed directory structure and method are provided for writing directory information for compressed data on a direct access storage device (DASD). DASD includes a plurality of compression groups for storing compressed data. A micro directory table is written within each of the compression groups for the corresponding compressed data in the compression group. Compressed data and a directory update are written with a single write operation. A macro directory table is written in one area of the DASD. The macro directory table includes directory information used for translating a logical address to a physical base address for each compression group. The micro directory table includes directory information used for translating a logical address for a requested data page to a physical page address and page length within the compression group.

摘要翻译： 提供分布式目录结构和方法，用于在直接访问存储设备（DASD）上写入用于压缩数据的目录信息。 DASD包括用于存储压缩数据的多个压缩组。 在压缩组中的相应压缩数据的每个压缩组内写入微目录表。 压缩数据和目录更新通过单次写入操作进行写入。 宏目录表写在DASD的一个区域中。 宏目录表包括用于将逻辑地址转换为每个压缩组的物理基址的目录信息。 微目录表包括用于将所请求的数据页的逻辑地址翻译成压缩组内的物理页地址和页长的目录信息。

公开(公告)号：US08913620B2

公开(公告)日：2014-12-16

申请号：US13420203

申请日：2012-03-14

申请人： Claude Basso ,  Todd A. Greenfield ,  Bruce M. Walk

发明人： Claude Basso ,  Todd A. Greenfield ,  Bruce M. Walk

IPC分类号： H04L12/28 ,  H04L1/00 ,  H04L12/66 ,  H04H20/71 ,  H04J3/16 ,  H04J3/24 ,  H04J3/26 ,  G06F15/173 ,  H04W72/00

CPC分类号： H04L45/16 ,  H04L49/201 ,  H04L49/351 ,  H04L49/70

摘要： A distributed switch may include a hierarchy with one or more levels of surrogate sub-switches (and surrogate bridge elements) that enable the distributed switch to scale bandwidth based on the size of the membership of a multicast group. When a sub-switch receives a multicast data frame, it forwards the packet to one of the surrogate sub-switches. Each surrogate sub-switch may then forward the packet to another surrogate in a different hierarchical level or to a destination computing device. Because the surrogates may transmit the data frame in parallel using two or more connection interfaces, the bandwidth used to forward the multicast packet increases for each surrogate used.

摘要翻译： 分布式交换机可以包括具有使得分布式交换机能够基于多播组的成员资格的大小来缩放带宽的代理子交换机（和代理桥元素）的一个或多个级别的层级。 当子交换机接收到组播数据帧时，它将数据包转发到其中一个代理子交换机。 然后，每个代理子交换机可以将分组转发到不同层级的另一个代理或转发到目的地计算设备。 由于代理可以使用两个或多个连接接口并行传输数据帧，所以用于转发组播数据包的带宽随着使用的每个代理而增加。