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1. 发明授权

US07403484B2 Switching fabrics and control protocols for them 有权
标题翻译：为他们交换结构和控制协议
公开(公告)号：US07403484B2
公开(公告)日：2008-07-22
申请号：US10751930
申请日：2004-01-07
申请人： Maurice A Goodfellow , Paul J Moran , John P Stubley , Alan E Ainsworth
发明人： Maurice A Goodfellow , Paul J Moran , John P Stubley , Alan E Ainsworth
IPC分类号： G01R31/08
CPC分类号： H04L45/12 , H04L45/28 , H04L45/32 , H04L49/10 , H04L49/65
摘要： A network unit for use in a switching fabric stores for each network unit in the switching fabric a respective change identification number. In each unit this number is incremented on each change of state. The unit broadcasts protocol packets which indicates incremented change identification numbers; receives corresponding packets from the other units; and determines when the last change identification numbers in the table are the same for all the units. This allows a control based on whether all the units know that all the other units have been updated in response to all the changes of state in the fabric. The network unit can also participate in a routing algorithm, and particularly a shortest path algorithm, within a fabric that constitutes a single network entity.
摘要翻译：用于交换结构的网络单元为交换结构中的每个网络单元存储相应的改变标识号。在每个单位中，这个数字在每次状态变化时递增。单位广播协议报文，表示增量变化识别号码; 从其他单位接收相应的数据包; 并确定表中的最后一个更改标识号在所有单元中是否相同。这允许基于所有单元是否知道所有其他单元已经被更新以响应于结构中的状态的所有改变而进行的控制。网络单元还可以参与构成单个网络实体的结构内的路由算法，特别是最短路径算法。

2. 发明授权

US08175086B2 Switching fabrics and control protocols for them 有权
标题翻译：为他们交换结构和控制协议
公开(公告)号：US08175086B2
公开(公告)日：2012-05-08
申请号：US12140326
申请日：2008-06-17
申请人： Maurice A Goodfellow , Paul J Moran , John P Stubley , Alan E Ainsworth
发明人： Maurice A Goodfellow , Paul J Moran , John P Stubley , Alan E Ainsworth
IPC分类号： H04L12/50
CPC分类号： H04L45/12 , H04L45/28 , H04L45/32 , H04L49/10 , H04L49/65
摘要： A network unit for use in a switching fabric includes multiple units collectively constituting a single network entity, each having ports for the reception and forwarding of data packets. The network unit has at least one fabric port for connection to a partner port on another one of the units by at least one link. The network unit is organized to send and receive via the at least one fabric port protocol packets which contain information on the path costs between said units in the fabric and to perform an algorithm to determine, on the basis of said information, routes for data packets within the fabric to other units of the fabric.
摘要翻译：在交换结构中使用的网络单元包括共同构成单个网络实体的多个单元，每个单元具有用于接收和转发数据分组的端口。网络单元具有至少一个结构端口，用于通过至少一个链路连接到另一个单元上的伙伴端口。所述网络单元被组织成经由所述至少一个结构端口协议分组发送和接收，所述至少一个结构端口协议分组包含关于所述结构中的所述单元之间的路径开销的信息，并且执行算法以基于所述信息确定数据分组的路由在织物内面向织物的其他单位。

3. 发明授权

US08804707B2 Switching fabrics and control protocols for them 有权
标题翻译：为他们交换结构和控制协议
公开(公告)号：US08804707B2
公开(公告)日：2014-08-12
申请号：US13442591
申请日：2012-04-09
申请人： Maurice A Goodfellow , Paul J Moran , John P Stubley , Alan E Ainsworth
发明人： Maurice A Goodfellow , Paul J Moran , John P Stubley , Alan E Ainsworth
IPC分类号： H04L12/50
CPC分类号： H04L45/12 , H04L45/28 , H04L45/32 , H04L49/10 , H04L49/65
摘要： A network unit for use in a switching fabric includes multiple units collectively constituting a single network entity, each having ports for the reception and forwarding of data packets. The network unit has at least one fabric port for connection to a partner port on another one of the units by at least one link. The network unit is organized to send and receive via the at least one fabric port protocol packets which contain information on the path costs between said units in the fabric and to perform an algorithm to determine, on the basis of said information, routes for data packets within the fabric to other units of the fabric.
摘要翻译：在交换结构中使用的网络单元包括共同构成单个网络实体的多个单元，每个单元具有用于接收和转发数据分组的端口。网络单元具有至少一个结构端口，用于通过至少一个链路连接到另一个单元上的伙伴端口。所述网络单元被组织成经由所述至少一个结构端口协议分组发送和接收，所述至少一个结构端口协议分组包含关于所述结构中的所述单元之间的路径开销的信息，并且执行算法以基于所述信息确定数据分组的路由在织物内面向织物的其他单位。

4. 发明授权

US07289496B2 Cascade system for network units 有权
标题翻译：级联系统为网络单元
公开(公告)号：US07289496B2
公开(公告)日：2007-10-30
申请号：US10067738
申请日：2002-02-08
申请人： Bryan J Donoghue , Quang T Tran , Eugene O'Neill , David J Law , Paul J Moran , Edele O'Malley , Jerome Nolan , Kam Choi , Maurice A Goodfellow
发明人： Bryan J Donoghue , Quang T Tran , Eugene O'Neill , David J Law , Paul J Moran , Edele O'Malley , Jerome Nolan , Kam Choi , Maurice A Goodfellow
IPC分类号： H04L12/50
CPC分类号： H04L12/433
摘要： Network units such as switches for use in a cascaded stack are organised to provide a cascade connection in the form of a dual unidirectional connection so that, in its ordinary configuration, there is at least one and preferably more than one unidirectional ring for each direction around the cascade, each ring including a respective port on each unit. For each ring, each port on a unit is connected by a respective link to a corresponding port on the preceding unit and the following unit. The units provide a self-healing operation in the event of various kinds of operational failure. The self-healing operation includes loop-back of packets in units adjacent the failure and bypass of a packet switching process for other units. The units include control logic for passing control frames containing status information relating to the units and links between them and for co-operation with a CPU to control a switching engine to perform the self-healing operation in accordance with that status information. The units forward on the cascade packets with headers that identify a destination port and the unit on which that port is located and also indicate which units have and have not been traversed by a packet.
摘要翻译：网络单元（例如用于级联堆叠中的开关）被组织以提供双向单向连接形式的级联连接，使得在其普通配置中，每个方向周围存在至少一个并且优选地多于一个单向环级联，每个环包括每个单元上的相应端口。对于每个环，单元上的每个端口通过相应的链路连接到前一单元上的相应端口和随后的单元。在各种操作故障的情况下，这些单元提供自愈操作。自修复操作包括以故障为单位的分组的环回，并且对其他单元进行分组交换过程的旁路。这些单元包括控制逻辑，用于传递包含与它们之间的单元和链接相关的状态信息的控制帧，并且用于与CPU协作以控制切换引擎以根据该状态信息执行自愈操作。单元在级联数据包上转发标识目的端口和该端口所在单元的报头，并指示哪些单元已经和没有被数据包遍历。

5. 发明授权

US08879444B2 Cascade system for network units 有权
标题翻译：级联系统为网络单元
公开(公告)号：US08879444B2
公开(公告)日：2014-11-04
申请号：US13526251
申请日：2012-06-18
申请人： Bryan J Donoghue , Quang T Tran , Eugene O'Neill , David J Law , Paul J Moran , Edele O'Malley , Jerome Nolan , Kam Choi , Maurice A Goodfellow
发明人： Bryan J Donoghue , Quang T Tran , Eugene O'Neill , David J Law , Paul J Moran , Edele O'Malley , Jerome Nolan , Kam Choi , Maurice A Goodfellow
IPC分类号： H04B7/00 , H04L12/433
CPC分类号： H04L12/433
摘要： In one embodiment, a method is described for detecting an operational failure between the network unit and an adjacent network unit in the stack; controlling the switching engine to redirect packets which would otherwise be sent from a particular port to the adjacent network unit to be forwarded from another port to be sent to a different network unit in the stack; and entering the switching engine into a bypass mode in response to control data indicating an operational failure between at least two other network units in the stack to cause packets to be forwarded without being re-directed by the switching engine.
摘要翻译：在一个实施例中，描述了一种用于检测网络单元和堆叠中的相邻网络单元之间的操作故障的方法; 控制交换引擎将否则将从特定端口发送到相邻网络单元的分组，以从要发送到堆栈中的不同网络单元的另一端口转发; 以及响应于指示所述堆叠中的至少两个其他网络单元之间的操作故障的控制数据，将所述交换引擎进入旁路模式，以使转发引擎不重新引导分组。

6. 发明授权

US07123615B2 Stacked network routers 有权
公开(公告)号：US07123615B2
公开(公告)日：2006-10-17
申请号：US10093506
申请日：2002-03-11
申请人： Raphael J Weyman , Maurice A Goodfellow
发明人： Raphael J Weyman , Maurice A Goodfellow
IPC分类号： H04L12/56
CPC分类号： H04L45/00 , H04L12/462 , H04L45/583
摘要： A cascaded stack of routing units each of which routes packets that it receives at its external ports and which conduct an election for a lead router that lends network and media access control addresses to the router interfaces of the other units in the stack. These other subordinate units have selected ancillary functions suppressed but otherwise have full routing capability. A packet entering the stack and requiring routing is routed by the unit that receives it and is thereafter bridged to its egress port.

7. 发明授权

US07720066B2 System and method for distributed multicast routing 有权
标题翻译：分布式组播路由的系统和方法
公开(公告)号：US07720066B2
公开(公告)日：2010-05-18
申请号：US11941316
申请日：2007-11-16
申请人： Raphael J Weyman , Francisco Aquino , Maurice A Goodfellow
发明人： Raphael J Weyman , Francisco Aquino , Maurice A Goodfellow
IPC分类号： H04L12/06
CPC分类号： H04L45/04 , H04L45/16 , H04L45/44
摘要： A distributed router composed of individual units connected by links in a routing fabric which appears to be a single network entity routes multicast packets by bridging to the final unit in the fabric. At the final unit the packet is replicated as necessary and routed. The scheme avoids multiple transmission of the same packet across the fabric.
摘要翻译：由路由结构中通过链路连接的单个单元组成的分布式路由器，其似乎是单个网络实体，通过桥接到结构中的最终单元来路由多播分组。在最后的单元中，根据需要复制数据包并进行路由。该方案避免了跨整个结构的多个传输相同的数据包。

8. 发明授权

US07522589B2 Network units for use in and organisation of cascade systems 有权
标题翻译：用于级联系统的网络单元和组织
公开(公告)号：US07522589B2
公开(公告)日：2009-04-21
申请号：US10337299
申请日：2003-01-07
申请人： Eugene O'Neill , Kam Choi , Edele O'Malley , Maurice A Goodfellow
发明人： Eugene O'Neill , Kam Choi , Edele O'Malley , Maurice A Goodfellow
IPC分类号： H04L12/28
CPC分类号： H04L45/02 , H04L45/26 , H04L45/742 , H04L49/201 , H04L49/30 , H04L49/3009 , H04L49/351
摘要： A multi-port network unit for use in a cascade system of network units sends from a cascade port a packet including a special header having a source port ID, a destination port ID and a ‘destination port known’ field. The port IDs identify both a unit and a port within a unit. A routing database is set up, optionally by a discovery protocol, in terms of ports and either destination units (within the cascade) or source units (within the cascade). The database includes a mesh table, indicating from which cascade port a packet with a known destination port ID should be forwarded, without needing a fresh look-up. The database also includes a multicast exclusion table which allows ingress of packets with source unit IDs matched to an ingress port. The scheme allows a general mesh type of cascade while dynamically preventing closed loops.
摘要翻译：用于网络级联系统的多端口网络单元从级联端口发送包括具有源端口ID，目的端口ID和“目的端口已知”字段的特殊报头的分组。端口ID标识单元中的单元和端口。根据端口和目标单元（级联）或源单元（级联内），路由数据库可选地由发现协议来设置。数据库包括网格表，指示哪个级联端口具有应该转发具有已知目的地端口ID的分组，而不需要新的查找。该数据库还包括一个组播排除表，允许进入与进入端口匹配的源单元ID的数据包。该方案允许一般网格类型的级联，同时动态地防止闭环。

9. 发明授权

US06819680B2 Link aggregation control for network devices 有权
标题翻译：网络设备的链路聚合控制
公开(公告)号：US06819680B2
公开(公告)日：2004-11-16
申请号：US09816313
申请日：2001-03-26
申请人： Graeme A Hickman , Maurice A Goodfellow , Ernest L Bell
发明人： Graeme A Hickman , Maurice A Goodfellow , Ernest L Bell
IPC分类号： H04J324
CPC分类号： H04L45/00 , H04L45/245 , Y02D50/30
摘要： A link aggregator control which produces for a system in which the aggregator is located data units identifying the system and a partner identity for a partner system, and in response to a change from an old system identity to a new system identity produces data units identifying the new system identity and distinctively identifying the old system identity in place of the partner identity. Where the system identity and partner identity are each in the form of a globally administered unicast media access control the old system identity is represented in the form of a locally administered multicast address in place of the partner identity.
摘要翻译：链路聚合器控制，其为聚合器所在的系统产生识别系统的数据单元和伙伴系统的伙伴身份，并且响应于从旧的系统标识向新的系统标识的改变，产生标识新的系统身份，并且明确地识别旧的系统身份而不是合作伙伴身份。在系统身份和伙伴身份各自以全局管理的单播媒体访问控制的形式的情况下，旧的系统身份以本地管理的多播地址的形式来代替伙伴身份。

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