公开(公告)号：US06249756B1

公开(公告)日：2001-06-19

申请号：US09206481

申请日：1998-12-07

申请人： William Patterson Bunton ,  David A. Brown ,  David T. Heron ,  Charles Edward Peet, Jr. ,  William Joel Watson ,  John C. Krause

发明人： William Patterson Bunton ,  David A. Brown ,  David T. Heron ,  Charles Edward Peet, Jr. ,  William Joel Watson ,  John C. Krause

IPC分类号： G06F1300

CPC分类号： G06F5/06 ,  G06F5/12 ,  G06F2205/126

摘要： An improved hybrid flow control protocol for providing FIFO capacity to prevent overflow due to bytes arriving after the FIFO indicates it is not ready to receive any more bytes utilizes a combination of a high/low watermark and credit based system. In one embodiment, when the byte count exceed the high watermark fixed credits are sent when N bytes are pulled from the FIFO. In a second embodiment, variable credits are sent depending on the difference between the number of bytes received in and pulled from the FIFO.

摘要翻译： 一种改进的混合流控制协议，用于提供FIFO容量以防止在FIFO之后到达的字节溢出，这表明它尚未准备好接收任何更多字节，利用高/低水印和基于信用的系统的组合。 在一个实施例中，当字节数超过高水平时，当从FIFO中提取N个字节时，发送固定信用。 在第二实施例中，根据在FIFO中接收和从FIFO中接收的字节数之间的差异来发送可变信用。

公开(公告)号：US5455917A

公开(公告)日：1995-10-03

申请号：US384346

申请日：1995-02-01

申请人： James E. Holeman ,  Robert R. Teisberg ,  Gary R. Morrison ,  David T. Heron ,  Jeffrey A. Boyd

发明人： James E. Holeman ,  Robert R. Teisberg ,  Gary R. Morrison ,  David T. Heron ,  Jeffrey A. Boyd

IPC分类号： G06F13/364 ,  H04L12/56 ,  G06F13/14 ,  H04Q11/04

CPC分类号： G06F13/364 ,  H04L12/56

摘要： A data communication system embodying an apparatus and a method provides simultaneous paths between a plurality of transmit ports and a plurality of receive ports for transmitting therebetween data identifying their destination receive ports. Such data are signals which are constructed in accordance with a standard serial protocol for frame element communication, such as HDLC (High-level Data Link Control). The system is assembled in a chassis containing a backplane and multiple cards having transmit and receive ports through which the cards couple the backplane. The system includes: a receiver of data transmitted by a source transmit port, a recognizer of the destination receive port identified by the received data, a determiner of the availability of the recognized destination receive port, a connector of a path between the source transmit port and the destination receive port in response to a determination that the recognized destination receive port is available, and a transmitter of the received data to the destination receive port through the connected path.

摘要翻译： 体现装置和方法的数据通信系统提供多个发送端口和多个接收端口之间的同时路径，用于在其间传输识别其目的地接收端口的数据。 这样的数据是根据用于帧单元通信的标准串行协议（例如HDLC（高级数据链路控制））构成的信号。 该系统组装在包含背板的机箱中，并且具有多个具有发送和接收端口的卡，卡通过卡连接背板。 该系统包括：由源发送端口发送的数据的接收器，由接收的数据标识的目的地接收端口的识别器，识别的目的地接收端口的可用性的确定器，源发送端口之间的路径的连接器 以及响应于所识别的目的地接收端口可用的确定的目的地接收端口，以及通过所连接的路径将接收到的数据的发送器发送到目的地接收端口。

公开(公告)号：US06950428B1

公开(公告)日：2005-09-27

申请号：US09670174

申请日：2000-09-25

申请人： Robert W. Horst ,  William J. Watson ,  David A. Brown ,  David J. Garcia ,  William P. Bunton ,  David T. Heron ,  William F. Bruckert

发明人： Robert W. Horst ,  William J. Watson ,  David A. Brown ,  David J. Garcia ,  William P. Bunton ,  David T. Heron ,  William F. Bruckert

IPC分类号： H04J1/16 ,  H04L12/56 ,  H04L29/06

CPC分类号： H04L49/357 ,  H04L45/00 ,  H04L49/101 ,  H04L49/254 ,  H04L69/14

摘要： Adaptive sets of lanes are configured between routers in a system area network. Source nodes determine whether packets may be adaptively routed between the lanes by encoding adaptive control bits in the packet header. The adaptive control bits also facilitate the flushing of all lanes of the adaptive set. Adaptive sets may also be used in uplinks between levels of a fat tree.

摘要翻译： 在系统区域网络中的路由器之间配置自适应通道组。 源节点通过对分组报头中的自适应控制位进行编码来确定分组是否可以在通道之间自适应地路由。 自适应控制位还有助于冲洗自适应组的所有通道。 自适应集合也可以用于胖树级别之间的上行链路。