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1. 发明授权

US06314106B1 Receive processing for dedicated bandwidth data communication switch backplane 失效
公开(公告)号：US06314106B1
公开(公告)日：2001-11-06
申请号：US09063493
申请日：1998-04-20
申请人： Wai King , Geoffrey C. Stone , Christopher Haywood
发明人： Wai King , Geoffrey C. Stone , Christopher Haywood
IPC分类号： H04L1228
CPC分类号： H04L49/351 , H04L45/7453 , H04L49/101 , H04L49/254 , H04L49/3018
摘要： A dedicated bandwidth switch backplane has efficient receive processing capable of handling highly parallel traffic. Packets must pass a filtering check and a watermark check before the receive port is allowed to release them to a queue. Highly efficient algorithms are applied to conduct the checks on the packets in a way which expedites receive processing and avoids contention. A hybrid priority/port-based arbitration algorithm is used to sequence filtering checks on pending packets. A watermark comparison algorithm performs preliminary calculations on the current packet using “projected” output queue write addresses for each possible outcome of the queueing decision on the preceding packet and using the actual outcome to select from among preliminary calculations to efficiently address the outcome-dependence of the current packet's watermark check on the queueing decision made on the preceding packet. Receive ports are operatively divided into full-write receive ports and selective-write receive ports for delivering their packets to the output queue. On the clock cycles where the selective-write receive port is assigned writing privileges, data is read from the queue, unless the selective-write receive port has indicated it wishes to write to the queue, in which case the selective-write receive port writes to the queue. The full-write receive ports always write data, if available, to the queue on the clock cycles where they are assigned writing privileges.

2. 发明授权

US06931019B2 Receive processing for dedicated bandwidth data communication switch backplane 失效
标题翻译：接收处理专用带宽数据通信交换机背板
公开(公告)号：US06931019B2
公开(公告)日：2005-08-16
申请号：US09871868
申请日：2001-06-01
申请人： Wai King , Geoffrey C. Stone , Christopher Haywood
发明人： Wai King , Geoffrey C. Stone , Christopher Haywood
IPC分类号： H04L12/46 , H04L12/56 , G06F3/00 , G06F13/00
CPC分类号： H04L49/351 , H04L45/7453 , H04L49/101 , H04L49/254 , H04L49/3018
摘要： A dedicated bandwidth switch backplane has efficient receive processing capable of handling highly parallel traffic. Packets must pass a filtering check and a watermark check before the receive port is allowed to release them to a queue. Highly efficient algorithms are applied to conduct the checks on the packets in a way which expedites receive processing and avoids contention. A hybrid priority/port-based arbitration algorithm is used to sequence filtering checks on pending packets. A watermark comparison algorithm performs preliminary calculations on the current packet using “projected” output queue write addresses for each possible outcome of the queueing decision on the preceding packet and using the actual outcome to select from among preliminary calculations to efficiently address the outcome-dependence of the current packet's watermark check on the queueing decision made on the preceding packet. Receive ports are operatively divided into full-write receive ports and selective-write receive ports for delivering their packets to the output queue. On the clock cycles where the selective-write receive port is assigned writing privileges, data is read from the queue, unless the selective-write receive port has indicated it wishes to write to the queue, in which case the selective-write receive port writes to the queue. The full-write receive ports always write data, if available, to the queue on the clock cycles where they are assigned writing privileges.
摘要翻译：专用带宽交换机背板具有能够处理高度并行流量的高效接收处理。在允许接收端口将其释放到队列之前，数据包必须通过过滤检查和水印检查。应用高效算法，以加快接收处理的方式对数据包进行检查，避免争用。混合优先级/基于端口的仲裁算法用于对未决数据包进行过滤检查。水印比较算法使用“投影”输出队列写地址对前一分组的排队决策的每个可能结果执行对当前分组的初步计算，并使用实际结果从初步计算中选择以有效地解决结果依赖性当前数据包的水印检查对上一个数据包进行排队决定。接收端口可操作地分为全写接收端口和选择性写入接收端口，用于将其数据包传送到输出队列。在选择性写入接收端口被分配写入特权的时钟周期中，从队列中读取数据，除非选择性写入接收端口已经表示希望写入队列，在这种情况下，选择性写入接收端口写入到队列全写入接收端口始终将数据（如果可用）写入队列，在它们被分配写入权限的时钟周期中。

3. 发明授权

US07012896B1 Dedicated bandwidth data communication switch backplane 失效
公开(公告)号：US07012896B1
公开(公告)日：2006-03-14
申请号：US09154966
申请日：1998-09-17
申请人： Christopher Haywood , Geoffrey C. Stone
发明人： Christopher Haywood , Geoffrey C. Stone
IPC分类号： H04L12/26 , H04L12/28
CPC分类号： H04L49/351 , H04L12/4641 , H04L45/7453 , H04L49/354
摘要： A LAN switch has a backplane matrix in which each controller has a dedicated packet bus for propagating packet data. Each bus has a root interfacing with the transmitting (root) controller and a plurality of leaves interfacing with receiving (leaf) controllers. This configuration enables each controller to simultaneously transmit packet data on the root of a bus and receive packet data off a plurality of leaves of other buses without contention. An efficient filtering and stalling system employed at the receive side of the backplane prevents the highly parallel traffic from causing receive side congestion.

4. 发明授权

US07586849B2 Dedicated bandwidth data communication switch backplane 有权
标题翻译：专用带宽数据通信交换机背板
公开(公告)号：US07586849B2
公开(公告)日：2009-09-08
申请号：US11231920
申请日：2005-09-21
申请人： Christopher Haywood , Geoffrey C. Stone
发明人： Christopher Haywood , Geoffrey C. Stone
IPC分类号： H04L12/26 , H04L12/28
CPC分类号： H04L49/351 , H04L12/4641 , H04L45/7453 , H04L49/354
摘要： A LAN switch has a backplane matrix in which each controller has a dedicated packet bus for propagating packet data. Each bus has a root interfacing with the transmitting (root) controller and a plurality of leaves interfacing with receiving (leaf) controllers. This configuration enables each controller to simultaneously transmit packet data on the root of a bus and receive packet data off a plurality of leaves of other buses without contention. An efficient filtering and stalling system employed at the receive side of the backplane prevents the highly parallel traffic from causing receive side congestion.
摘要翻译： LAN交换机具有背板矩阵，其中每个控制器具有用于传播分组数据的专用分组总线。每个总线具有与传输（根）控制器的根接口以及与接收（叶）控制器接口的多个叶。该配置使得每个控制器能够在总线的根部上同时发送分组数据，并且在没有争用的情况下从多个其他总线的叶片接收分组数据。在背板的接收侧使用的有效的滤波和停止系统防止高度并行的业务造成接收端拥塞。

5. 发明授权

US6070243A Deterministic user authentication service for communication network 失效
公开(公告)号：US6070243A
公开(公告)日：2000-05-30
申请号：US874754
申请日：1997-06-13
申请人： Michael E. See , John W. Bailey , Charles L. Panza , Yuri Pikover , Geoffrey C. Stone
发明人： Michael E. See , John W. Bailey , Charles L. Panza , Yuri Pikover , Geoffrey C. Stone
IPC分类号： G06F1/00 , H04K1/00 , H04L29/06 , G06F11/00
CPC分类号： H04L63/08 , G06F21/31 , G06F21/445 , H04L63/102 , G06F2221/2101 , G06F2221/2137 , G06F2221/2141 , H04L12/4641 , H04L63/0823 , H04L63/083 , H04L63/101
摘要： A user authentication service for a communication network authenticates local users before granting them access to personalized sets of network resources. Authentication agents on intelligent edge devices present users of associated end systems with log-in challenges. Information supplied by the users is forwarded to an authentication server for verification. If successfully verified, the authentication server returns to the agents authorized connectivity information and time restrictions for the particular authenticated users. The agents use the information to establish rules for filtering and forwarding network traffic originating from or destined for particular authenticated users during authorized time periods. An enhanced authentication server may be engaged if additional security is desired. The authorized connectivity information preferably includes identifiers of one or more virtual local area networks active in the network. Log-in attempts are recorded so that the identity and whereabouts of network users may be monitored from a network management station.

6. 发明授权

US5546390A Method and apparatus for radix decision packet processing 失效
标题翻译：用于基数决策包处理的方法和装置
公开(公告)号：US5546390A
公开(公告)日：1996-08-13
申请号：US366222
申请日：1994-12-29
申请人： Geoffrey C. Stone
发明人： Geoffrey C. Stone
IPC分类号： H04L29/06 , H04L12/56 , G06F9/28
CPC分类号： H04L29/06 , H04L69/22
摘要： A decision process is optimized through selectively examining only those bits of a protocol data unit received from a communication network which affect the decision process. These decision-significant bits include two non-contiguous bits of the protocol data unit. Subsequently, a portion of the received protocol data unit is compared with a predetermined tuple to validate the decision process. The predetermined tuple includes known values for a specific portion of the protocol data unit having the two non-contiguous decision-significant bits. Associated directives are generated for the protocol data unit based upon the validated decision process. Alternatively, this processing is a radix tree-type decision process in which the decision-significant bits are grouped together into decision groups and decisions are made based on decision groups rather than individual decision-significant bits. In addition, a preprocessing device, a decision processor, and a protocol data unit processing system are provided which perform either decision process.
摘要翻译：通过选择性地仅检查从影响决策过程的通信网络接收的协议数据单元的那些比特来优化决策过程。这些决定有效位包括协议数据单元的两个非连续位。随后，将接收到的协议数据单元的一部分与预定的元组进行比较以验证决策过程。该预定元组包括具有两个不连续的判定有效位的协议数据单元的特定部分的已知值。基于经过验证的决策过程，为协议数据单元生成相关指令。或者，该处理是基数树决策过程，其中决策有效位被分组在一起成为决策组，并且基于决策组而不是单个决策有效位进行决策。此外，提供执行任一决策处理的预处理装置，决策处理器和协议数据单元处理系统。

7. 发明授权

US09154478B2 Deterministic user authentication service for communication network 有权
公开(公告)号：US09154478B2
公开(公告)日：2015-10-06
申请号：US13618862
申请日：2012-09-14
申请人： Michael E. See , John W. Bailey , Charles L. Panza , Yuri Pikover , Geoffrey C. Stone , Michele Wright Goodwin , Robert Leon Sangroniz
发明人： Michael E. See , John W. Bailey , Charles L. Panza , Yuri Pikover , Geoffrey C. Stone , Michele Wright Goodwin , Robert Leon Sangroniz
IPC分类号： H04L29/06 , G06F21/31 , G06F21/44 , H04L12/46
CPC分类号： H04L63/08 , G06F21/31 , G06F21/445 , G06F2221/2101 , G06F2221/2137 , G06F2221/2141 , H04L12/4641 , H04L63/0823 , H04L63/083 , H04L63/101 , H04L63/102
摘要： A user authentication service for a communication network authenticates local users before granting them access to personalized sets of network resources. Authentication agents on intelligent edge devices present users of associated end systems with log-in challenges. Information supplied by the users is forwarded to an authentication server for verification. If successfully verified, the authentication server returns to the agents authorized connectivity information and time restrictions for the particular authenticated users. The agents use the information to establish rules for filtering and forwarding network traffic originating from or destined for particular authenticated users during authorized time periods. An enhanced authentication server may be engaged if additional security is desired. The authorized connectivity information preferably includes identifiers of one or more virtual local area networks active in the network. Log-in attempts are recorded so that the identity and whereabouts of network users may be monitored from a network management station.

8. 发明授权

US06874090B2 Deterministic user authentication service for communication network 有权
标题翻译：通信网络的确定性用户认证服务
公开(公告)号：US06874090B2
公开(公告)日：2005-03-29
申请号：US09886930
申请日：2001-06-21
申请人： Michael E. See , John W. Bailey , Charles L. Panza , Yuri Pikover , Geoffrey C. Stone
发明人： Michael E. See , John W. Bailey , Charles L. Panza , Yuri Pikover , Geoffrey C. Stone
IPC分类号： G06F1/00 , H04K1/00 , H04L29/06 , G06F11/30 , G06F12/14 , H04L9/00 , H04L9/32
CPC分类号： H04L63/08 , G06F21/31 , G06F21/445 , G06F2221/2101 , G06F2221/2137 , G06F2221/2141 , H04L12/4641 , H04L63/0823 , H04L63/083 , H04L63/101 , H04L63/102
摘要： A user authentication service for a communication network authenticates local users before granting them access to personalized sets of network resources. Authentication agents on intelligent edge devices present users of associated end systems with log-in challenges. Information supplied by the users is forwarded to an authentication server for verification. If successfully verified, the authentication server returns to the agents authorized connectivity information and time restrictions for the particular authenticated users. The agents use the information to establish rules for filtering and forwarding network traffic originating from or destined for particular authenticated users during authorized time periods. An enhanced authentication server may be engaged if additional security is desired. The authorized connectivity information preferably includes identifiers of one or more virtual local area networks active in the network. Log-in attempts are recorded so that the identity and whereabouts of network users may be monitored from a network management station.
摘要翻译：用于通信网络的用户认证服务在给予他们访问个性化的网络资源集之前认证本地用户。智能边缘设备上的认证代理向相关终端系统的用户提供登录挑战。用户提供的信息被转发到认证服务器进行验证。如果成功验证，认证服务器将返回到特定经过身份验证的用户的代理授权连接信息和时间限制。代理使用信息来建立规则，用于在授权的时间段内过滤和转发源自或发往特定认证用户的网络流量。如果需要额外的安全性，则可以使用增强的认证服务器。授权的连接性信息优选地包括在网络中活动的一个或多个虚拟局域网的标识符。记录登录尝试，以便可以从网络管理站监控网络用户的身份和下落。

9. 发明授权

US06757286B1 Self-configuring communication network 失效
标题翻译：自配置通信网络
公开(公告)号：US06757286B1
公开(公告)日：2004-06-29
申请号：US09629362
申请日：2000-08-01
申请人： Geoffrey C. Stone
发明人： Geoffrey C. Stone
IPC分类号： H04L1228
CPC分类号： H04L45/26 , H04L12/4645 , H04L45/02 , H04L45/10 , H04L45/16 , H04L2012/562 , H04L2012/5642 , H04Q11/0478
摘要： Methods for configuring, maintaining connectivity in and utilizing an ATM network. Neighboring switches share topology information and enable links to neighboring switches for tag switching. Point-to-point tagged virtual connections are established between switches on the best and next-best paths learned from topology information. Point-to-multipoint tagged virtual connections are established on the spanning tree path. Multiple tag allocation requests are included in a single message to preserve bandwidth. Next-best paths are established to reduce latency in event of link failure. Forwarding operations may be performed in hardware to reduce latency during message forwarding.
摘要翻译：用于配置，维护和利用ATM网络的连接的方法。相邻交换机共享拓扑信息并启用到相邻交换机的链路以进行标签交换。在拓扑信息学习的最佳和最佳路径上的交换机之间建立点对点标记的虚拟连接。在生成树路径上建立点对多点标记的虚拟连接。单个消息中包含多个标签分配请求以保留带宽。建立下一个最佳路径，以减少链路故障时的延迟。可以在硬件中执行转发操作以减少消息转发期间的延迟。

10. 发明授权

US6041057A Self-configuring ATM network 失效
标题翻译：自配ATM网络
公开(公告)号：US6041057A
公开(公告)日：2000-03-21
申请号：US823078
申请日：1997-03-24
申请人： Geoffrey C. Stone
发明人： Geoffrey C. Stone
IPC分类号： H04L12/46 , H04L12/56 , H04Q11/04 , H04L12/28
CPC分类号： H04L45/26 , H04L12/4645 , H04L12/4675 , H04L45/02 , H04L45/10 , H04L45/16 , H04Q11/0478 , H04L2012/562 , H04L2012/5642
摘要： Methods for configuring, maintaining connectivity in and utilizing an ATM network. Neighboring switches share topology information and enable links to neighboring switches for tag switching. Point-to-point tagged virtual connections are established between switches on the best and next-best paths learned from topology information. Point-to-multipoint tagged virtual connections are established on the spanning tree path. Multiple tag allocation requests are included in a single message to preserve bandwidth. Next-best paths are established to reduce latency in event of link failure. Forwarding operations may be performed in hardware to reduce latency during message forwarding.
摘要翻译：用于配置，维护和利用ATM网络的连接的方法。相邻交换机共享拓扑信息并启用到相邻交换机的链路以进行标签交换。在从拓扑信息学习的最佳和最佳路径上的交换机之间建立点对点标记的虚拟连接。在生成树路径上建立点对多点标记的虚拟连接。单个消息中包含多个标签分配请求以保留带宽。建立下一个最佳路径，以减少链路故障时的延迟。可以在硬件中执行转发操作以减少消息转发期间的延迟。

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