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21. 发明授权

US07764703B1 Apparatus and method for dynamically limiting output queue size in a quality of service network switch 有权
标题翻译：用于在服务质量网络交换机中动态地限制输出队列大小的装置和方法
公开(公告)号：US07764703B1
公开(公告)日：2010-07-27
申请号：US11523185
申请日：2006-09-19
申请人： Hugh Walsh , Donald Pannell
发明人： Hugh Walsh , Donald Pannell
IPC分类号： H04L12/28
CPC分类号： H04L49/90 , H04L47/50 , H04L47/6215 , H04L49/901
摘要： A method for sending a frame of data from a first channel to a second channel comprises reserving q of n available buffers of m total buffers to the first channel. A frame that is received from the first channel in i of the q buffers is stored and the status is changed to unavailable. The frame is selectively assigned to the second channel based on a number of the buffers j assigned to the second channel and a number of the buffers h neither reserved nor assigned to any channel, wherein i+j≦m and h+q≦n. The i buffers storing the frame are assigned to the second channel if the frame is assigned to the second channel. The status of the i buffers is changed to available if the frame is subsequently sent over the second channel.
摘要翻译：用于将数据帧从第一通道发送到第二通道的方法包括将总共缓冲器的n个可用缓冲器的q保留到第一通道。从q缓冲器的i中的第一通道接收到的帧被存储，状态改变为不可用。基于分配给第二通道的缓冲器j的数量和既不保留也不分配给任何通道的缓冲器h的数量，选择性地将帧分配给第二通道，其中i + j＆nlE; m和h + q＆nlE; n。如果帧被分配给第二通道，则存储帧的i缓冲器被分配给第二通道。如果帧随后通过第二个通道发送，则i缓冲区的状态将更改为可用。

22. 发明授权

US07715415B1 Router having a single CPU MAC 有权
标题翻译：路由器具有单个CPU MAC
公开(公告)号：US07715415B1
公开(公告)日：2010-05-11
申请号：US11809844
申请日：2007-06-01
申请人： Donald Pannell , Yosef Meyouhas , Peter Wang , Maxim Mondaeev
发明人： Donald Pannell , Yosef Meyouhas , Peter Wang , Maxim Mondaeev
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L45/60 , H04L12/2852 , H04L45/66
摘要： A network device for transferring data from a first network to a second network comprises a switch comprising a first port adapted to receive a frame of the data from the first network and a second port adapted to transmit the frame to the second network. The frame comprises a plurality of words including a first word comprising a first portion of an internet protocol address and a second word comprising a second portion of the internet protocol address. The switch adds one or more bits to the frame so that the first and second portions of the internet protocol address appear within a single word of the frame. A processor receives the frame from the switch, and to modify the internet protocol address in the frame. The switch receives the frame from the processor, and removes the one or more bits from the frame before the second port transmits the frame to the second network.
摘要翻译：用于将数据从第一网络传送到第二网络的网络设备包括交换机，其包括适于从第一网络接收数据帧的第一端口和适于将帧发送到第二网络的第二端口。该帧包括多个单词，包括包括因特网协议地址的第一部分的第一个单词和包含因特网协议地址的第二部分的第二单词。交换机将一个或多个比特添加到该帧，使得互联网协议地址的第一和第二部分出现在帧的单个单词内。处理器从交换机接收帧，并修改帧中的因特网协议地址。交换机从处理器接收帧，并且在第二端口将帧发送到第二网络之前从帧中移除一个或多个比特。

23. 发明授权

US07680053B1 Inter-device flow control 有权
标题翻译：设备间流量控制
公开(公告)号：US07680053B1
公开(公告)日：2010-03-16
申请号：US11254588
申请日：2005-10-20
申请人： Donald Pannell , Hong Yu Chou
发明人： Donald Pannell , Hong Yu Chou
IPC分类号： H04L12/26
CPC分类号： H04L47/10 , H04L47/26 , H04L49/506
摘要： A network switching device comprises first and second ports. A queue communicates with the second port, stores frames for later output by the second port, and generates a congestion signal when filled above a threshold. A control module selectively sends an outgoing flow control message to the first port when the congestion signal is present, and selectively instructs the second port to assert flow control when a flow control message is received from the first port if the received flow control message designates the second port as a target.
摘要翻译：网络交换设备包括第一和第二端口。队列与第二端口通信，存储帧以供稍后由第二端口输出，并且当填充在阈值以上时产生拥塞信号。当拥塞信号存在时，控制模块选择性地向第一端口发送流出控制消息，并且如果接收的流量控制消息指定了从第一端口接收到流控制消息，则有选择地指示第二端口断言流量控制第二个港口作为目标。

24. 发明授权

US07564857B1 Router having a single CPU MAC 有权
标题翻译：路由器具有单个CPU MAC
公开(公告)号：US07564857B1
公开(公告)日：2009-07-21
申请号：US11809823
申请日：2007-06-01
申请人： Donald Pannell , Yosef Meyouhas , Peter Wang , Maxim Mondaeev
发明人： Donald Pannell , Yosef Meyouhas , Peter Wang , Maxim Mondaeev
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L45/00 , H04L45/302 , H04L45/60
摘要： A router comprises a processor, a single media access controller connected to the processor; and a switch comprising a plurality of ports, wherein one of the ports is connected to the single media access controller.
摘要翻译：路由器包括处理器，连接到处理器的单个媒体访问控制器; 以及包括多个端口的交换机，其中一个端口连接到单个媒体访问控制器。

25. 发明授权

US07321554B1 Method and apparatus for preventing blocking in a quality of service switch 有权
标题翻译：防止服务质量开关阻塞的方法和装置
公开(公告)号：US07321554B1
公开(公告)日：2008-01-22
申请号：US11789315
申请日：2007-04-24
申请人： Hugh Walsh , Donald Pannell
发明人： Hugh Walsh , Donald Pannell
IPC分类号： G01R31/08
CPC分类号： H04L47/6205 , H04L47/11 , H04L47/24 , H04L47/29 , H04L47/30 , H04L47/32 , H04L47/50 , H04L47/56 , H04L49/102 , H04L49/20 , H04L49/3036
摘要： A method, apparatus, and computer-readable media for sending a frame of data from a first channel to a second channel using at least one of m memory buffers for storing a frame, m being at least 2, in which n of the m buffers have an available status and p of the m buffers have an unavailable status, wherein m=n+p comprises reserving to the first channel one or more of the n buffers having the available status when a number q of the buffers reserved to the first channel is less than a capacity r, wherein q≦r; when a frame is received from the first channel, storing the frame in i of the q buffers and changing the status of the i buffers to unavailable, wherein 1≦i≦q; selectively assigning the frame to the second channel based on a number s of the q buffers, wherein s≦q; wherein if the frame is assigned to the second channel, the frame is sent to the second channel from the i buffers and the status of the i buffers is changed to available; wherein if the frame is not assigned to the second channel, the frame is discarded and the status of the i buffers is changed to available; wherein h of the n buffers having the available status are not reserved to any channel, wherein h+q≦n; stopping reserving buffers to the first channel when the second channel is congested and the number of buffers h not reserved to any channel is less than, or equal to, a first predetermined threshold; and starting reserving buffers to the first channel when the number of buffers h not reserved to any channel is greater than, or equal to, a second predetermined threshold.
摘要翻译：一种用于使用用于存储帧的m个存储器缓冲器中的至少一个来将数据帧从第一通道发送到第二通道的方法，装置和计算机可读介质，m至少为2，其中n个m个缓冲器具有可用状态，并且m个缓冲器的p具有不可用状态，其中m = n + p包括当第一通道保留的缓冲器数量q时，向第一通道预留具有可用状态的n个缓冲器中的一个或多个小于容量r，其中q <= r; 当从第一信道接收到帧时，将该帧存储在q个缓冲器的i中并将i个缓冲器的状态改变为不可用，其中1 <= i <= q; 基于q个缓冲器的数量s，选择性地将帧分配给第二信道，其中s = q; 其中如果所述帧被分配给所述第二信道，则将所述帧从所述i个缓冲器发送到所述第二信道，并且所述i个缓冲器的状态改变为可用的; 其中如果所述帧未被分配给所述第二信道，则所述帧被丢弃并且所述i缓冲器的状态改变为可用; 其中具有可用状态的n个缓冲器的h不保留给任何通道，其中h + q <= n; 当所述第二信道拥塞时，停止向所述第一信道预留缓冲器，并且没有预留给任何信道的缓冲器h的数量小于或等于第一预定阈值; 以及当没有为任何信道保留的缓冲器h的数量大于或等于第二预定阈值时，开始将预留缓冲器保留到第一信道。

26. 发明申请

US20070183349A1 Duplex mismatch detection 有权
标题翻译：双工不匹配检测
公开(公告)号：US20070183349A1
公开(公告)日：2007-08-09
申请号：US11523389
申请日：2006-09-19
申请人： Donald Pannell , Ozdal Barkan
发明人： Donald Pannell , Ozdal Barkan
IPC分类号： H04L5/14 , H04B1/56 , H04J3/02
CPC分类号： H04L5/14
摘要： Embodiments of the present invention provide techniques for both ends of a link suffering from duplex mismatch to correct the duplex mismatch. According to some embodiments, the half-duplex end of the link can detect that the other end of the link is in full-duplex mode by detecting late and/or very late collisions, and can correct the duplex mismatch by changing to full-duplex mode. According to some embodiments, the full-duplex end of the link can detect that the other end of the link is in half-duplex mode by one or more techniques including detecting cyclic redundancy check (CRC) errors and frame fragments, and can correct the duplex mismatch by changing to half-duplex mode.
摘要翻译：本发明的实施例提供了用于双工不匹配以纠正双工不匹配的链路的两端的技术。根据一些实施例，链路的半双工端可以通过检测延迟和/或非常晚的冲突来检测链路的另一端处于全双工模式，并且可以通过改变为全双工来校正双工不匹配模式。根据一些实施例，链路的全双工端可以通过一种或多种技术来检测链路的另一端是半双工模式，包括检测循环冗余校验（CRC）错误和帧片段，并且可以校正通过更改为半双工模式来实现双工不匹配。

27. 发明授权

US09584342B1 Enhanced audio video bridging (AVB) methods and apparatus 有权
标题翻译：增强音视频桥接（AVB）方法和设备
公开(公告)号：US09584342B1
公开(公告)日：2017-02-28
申请号：US13115868
申请日：2011-05-25
申请人： Donald Pannell
发明人： Donald Pannell
IPC分类号： H04L12/46 , H04L12/54 , H04L12/913
CPC分类号： H04L49/354 , H04J3/16 , H04L12/28 , H04L12/462 , H04L12/56 , H04L45/745 , H04L45/7453 , H04L47/24 , H04L47/2408 , H04L47/245 , H04L47/2458 , H04L47/6215 , H04L47/70 , H04L47/724 , H04L49/201 , H04L49/3027 , H04L49/90 , H04L2012/5638
摘要： A packet is received via a port of the network device, and a database lookup is performed using header information of the packet. A priority associated with the packet is determined, and it is determined whether the priority is associated with a particular communication protocol that provides guaranteed delivery, defined latency, and/or defined throughput. When it is determined that the priority is associated with the particular communication protocol, i) it is determined, based on the database lookup, whether a destination address (DA) of the packet is associated with the particular communication protocol, and ii) when it is determined that the DA of the packet is associated with the particular communication protocol, the packet is prevented from egressing from ports of the network device that are operating according to the particular communication protocol with a frame priority indicator corresponding to a value reserved for the particular communication protocol.
摘要翻译：通过网络设备的端口接收分组，并且使用分组的报头信息来执行数据库查找。确定与分组相关联的优先级，并且确定优先级是否与提供保证传递，定义的等待时间和/或定义的吞吐量的特定通信协议相关联。当确定优先级与特定通信协议相关联时，i）基于数据库查找确定分组的目的地地址（DA）是否与特定通信协议相关联，以及ii）何时确定分组的DA与特定通信协议相关联，防止分组从根据特定通信协议操作的网络设备的端口出来，其中帧优先级指示符对应于为特定通信协议保留的值通讯协议。

28. 发明授权

US08705416B2 Duplex mismatch detection 有权
标题翻译：双工不匹配检测
公开(公告)号：US08705416B2
公开(公告)日：2014-04-22
申请号：US13315800
申请日：2011-12-09
申请人： Donald Pannell , Ozdal Barkan
发明人： Donald Pannell , Ozdal Barkan
IPC分类号： H04B1/44
CPC分类号： H04L5/14
摘要： An apparatus including a port to transmit first frames and receive second frames over a communication channel, the port including a collision detect circuit and a duplex mismatch circuit. The collision detect circuit detects collisions on the communication channel between the first frames and the second frames. The duplex mismatch circuit declares a duplex mismatch when the communication channel was established without attempting auto-negotiation, the port is in a half-duplex mode, and the collision detect circuit detects a very late collision involving one of the first frames. The very late collision occurs after a predetermined amount of data has been transmitted in the one of the first frames. The duplex mismatch indicates that a full-duplex mode is used with respect to the second frames.
摘要翻译：一种装置，包括用于发送第一帧并通过通信信道接收第二帧的端口，所述端口包括冲突检测电路和双工不匹配电路。冲突检测电路检测第一帧和第二帧之间的通信信道上的冲突。当通信信道建立而不尝试自动协商，端口处于半双工模式，并且冲突检测电路检测到涉及其中一个第一帧的非常晚的冲突时，双工不匹配电路声明双工不匹配。在第一帧之一中发送预定量的数据之后发生非常晚的冲突。双工不匹配表示相对于第二帧使用全双工模式。

29. 发明授权

US08335878B2 Multiport memory architecture, devices and systems including the same, and methods of using the same 有权
标题翻译：多端口存储器架构，包括相同的器件和系统以及使用它们的方法
公开(公告)号：US08335878B2
公开(公告)日：2012-12-18
申请号：US12494076
申请日：2009-06-29
申请人： Winston Lee , Sehat Sutardja , Donald Pannell
发明人： Winston Lee , Sehat Sutardja , Donald Pannell
IPC分类号： G06F7/00 , G11C11/401
CPC分类号： G11C7/1075
摘要： A multiport memory architecture, systems including the same and methods for using the same. The architecture generally includes (a) a memory array; (b) a plurality of ports configured to receive and/or transmit data; and (c) a plurality of port buffers, each of which is configured to transmit the data to and/or receive the data from one or more of the ports, and all of which are configured to (i) transmit the data to the memory array on a first common bus and (ii) receive the data from the memory array on a second common bus. The systems generally include those that embody one or more of the inventive concepts disclosed herein. The methods generally relate to writing blocks of data to, reading blocks of data from, and/or transferring blocks of data across a memory. The present invention advantageously reduces latency in data communications, particularly in network switches, by tightly coupling port buffers to the main memory and advantageously using point-to-point communications over long segments of the memory read and write paths, thereby reducing routing congestion and enabling the elimination of a FIFO. The invention advantageously shrinks chip size and provides increased data transmission rates and throughput, and in preferred embodiments, reduced resistance and/or capacitance in the memory read and write busses.
摘要翻译：多端口内存架构，系统包括相同以及使用方法。架构通常包括（a）存储器阵列; （b）配置成接收和/或发送数据的多个端口; 以及（c）多个端口缓冲器，每个端口缓冲器被配置为从一个或多个端口发送数据和/或从一个或多个端口接收数据，并且所有端口缓冲器被配置为（i）将数据发送到存储器阵列在第一公共总线上，（ii）在第二公共总线上从存储器阵列接收数据。系统通常包括体现本文公开的一个或多个发明构思的系统。所述方法通常涉及将数据块写入到数据块，从存储器读取数据块和/或传送数据块。本发明有利地通过将端口缓冲器紧密地耦合到主存储器并且有利地使用存储器读写路径的长段上的点对点通信来减少数据通信中的特别是网络交换机中的等待时间，从而减少路由拥塞和启用消除FIFO。本发明有利地缩小芯片尺寸并提供增加的数据传输速率和吞吐量，并且在优选实施例中，存储器读和写总线中的电阻和/或电容减小。

30. 发明申请

US20120076057A1 Duplex Mismatch Detection 有权
标题翻译：双工不匹配检测
公开(公告)号：US20120076057A1
公开(公告)日：2012-03-29
申请号：US13315800
申请日：2011-12-09
申请人： Donald Pannell , Ozdal Barkan
发明人： Donald Pannell , Ozdal Barkan
IPC分类号： H04L5/14 , H04L5/16
CPC分类号： H04L5/14
摘要： An apparatus including a port to transmit first frames and receive second frames over a communication channel, the port including a collision detect circuit and a duplex mismatch circuit. The collision detect circuit detects collisions on the communication channel between the first frames and the second frames. The duplex mismatch circuit declares a duplex mismatch when the communication channel was established without attempting auto-negotiation, the port is in a half-duplex mode, and the collision detect circuit detects a very late collision involving one of the first frames. The very late collision occurs after a predetermined amount of data has been transmitted in the one of the first frames. The duplex mismatch indicates that a full-duplex mode is used with respect to the second frames.
摘要翻译：一种装置，包括用于发送第一帧并通过通信信道接收第二帧的端口，所述端口包括冲突检测电路和双工不匹配电路。冲突检测电路检测第一帧和第二帧之间的通信信道上的冲突。当通信信道建立而不尝试自动协商，端口处于半双工模式，并且冲突检测电路检测到涉及其中一个第一帧的非常晚的冲突时，双工不匹配电路声明双工不匹配。在第一帧之一中发送预定量的数据之后发生非常晚的冲突。双工不匹配表示相对于第二帧使用全双工模式。

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