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公开(公告)号：US07573916B1
公开(公告)日：2009-08-11
申请号：US10804349
申请日：2004-03-17
CPC分类号： H04L12/4641 , H04L12/4633
摘要： A high speed communications interface divides data into a plurality of lanes, each lane encoded with clocking information, serialized, and sent to an interface. During cycles when there is no available data to send, IDLE_EVEN and IDLE_ODD cells are sent on alternating cycles. Data is transmitted by sending a header which spans all lanes and includes a START symbol. The final data transaction includes a Frame Check Sequence (FCS) which operates over the entire header and data. The packet is terminated by an END symbol, which is sent after the final data, and the remainder of the lanes are padded with IDLE_EVEN, IDLE_ODD, IDLE_EVEN_BUSY, or IDLE_ODD_BUSY cycles. The interface has a variable clock rate.
摘要翻译： 高速通信接口将数据划分为多个通道，每个通道用时钟信息编码，串行化并发送到接口。 在没有可用数据发送的周期期间，IDLE_EVEN和IDLE_ODD单元是以交替周期发送的。 通过发送跨越所有通道的头部并包括START符号来发送数据。 最终数据事务包括在整个报头和数据上操作的帧校验序列（FCS）。 数据包由END符号终止，该符号在最终数据之后发送，剩余的通道以IDLE_EVEN，IDLE_ODD，IDLE_EVEN_BUSY或IDLE_ODD_BUSY循环填充。 该接口具有可变的时钟速率。
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公开(公告)号：US6029202A
公开(公告)日：2000-02-22
申请号：US997042
申请日：1997-12-23
申请人： Howard M. Frazier , Shimon Muller
发明人： Howard M. Frazier , Shimon Muller
CPC分类号： H04L47/10 , H04L12/4013 , H04L12/413 , H04L47/13 , H04L47/266 , H04L49/351
摘要： CSMA/CD is used to implement flow control in a full-duplex Ethernet network in a lossless fashion. Uniquely identifiable flow control transmit on/off ("XON/XOFF") messages are transmitted, preferably during IPG, by a receiving station about to be congested to the transmitting station whose data output is to be controlled. The transmitting station physical layer receives and decodes these messages. If XOFF is recognized, the transmitting station continuously asserts CRS to its MAC layer at the MII, regardless of the prior CRS current state. CRS is continuously asserted until the receiving station transmits an XON flow control signal, indicating its ability to accept further data. During CRS assertion, the transmitting station defers transmission, e.g., is flow controlled. The MAC layer is slightly modified (but is still backward compatible with half-duplex networks) to provide separate transmit deferral receive data frame mechanisms using separate and independent input status signals, namely CRS and RX.sub.-- DV. CRS provides a carrierSense signal used for deferral within the MAC transmit process, and RX.sub.-- DV provides a receive.sub.-- carrierSense signal that frames data within the MAC receive process. As long as CRS remains asserted, the transmitting station defers transmission, thereby implementing flow control. In addition to slight MAC layer modification, the present invention slightly modified the physical layer, MII interface and reconciliation sublayer.
摘要翻译： CSMA / CD用于在全双工以太网网络中以无损耗方式实现流量控制。 发送/发送（“XON / XOFF”）消息的唯一可识别信息最好在IPG期间被接收站发送到要控制其数据输出的发送站。 发送站物理层接收并解码这些消息。 如果识别出XOFF，则无论先前的CRS当前状态如何，发射台在MII处连续断言CRS到其MAC层。 连续断言CRS，直到接收站发送XON流量控制信号，指示其接受进一步数据的能力。 在CRS断言期间，发送站延迟传输，例如被流控制。 MAC层略微修改（但仍然向下兼容半双工网络），以使用单独和独立的输入状态信号即CRS和RX-DV提供单独的发送延迟接收数据帧机制。 CRS提供用于在MAC发送过程中延迟的载波信号，RX-DV提供在MAC接收过程中帧数据的接收载波信号。 只要CRS保持断言，发送站就会延迟传输，从而实现流量控制。 除了轻微的MAC层修改之外，本发明稍微修改了物理层，MII接口和协调子层。
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公开(公告)号：USRE38309E1
公开(公告)日：2003-11-11
申请号：US09616347
申请日：2000-07-14
申请人： Howard M. Frazier , Shimon Muller
发明人： Howard M. Frazier , Shimon Muller
IPC分类号： H04J116
CPC分类号： H04L47/10 , H04L12/4013 , H04L12/413 , H04L47/13 , H04L47/266 , H04L49/351
摘要： CSMA/CD is used to implement flow control in a full-duplex Ethernet network in a lossless fashion. Uniquely identifiable flow control transmit on/off (“XON/XOFF”) messages are transmitted, preferably during IPG, by a receiving station about to be congested to the transmitting station whose data output is to be controlled. The transmitting station physical layer receives and decodes these messages. If XOFF is recognized, the transmitting station continuously asserts CRS to its MAC layer at the MII, regardless of the prior CRS current state. CRS is continuously asserted until the receiving station transmits an XON flow control signal, indicating its ability to accept further data. During CRS assertion, the transmitting station defers transmission, e.g., is flow controlled. The MAC layer is slightly modified (but is still backward compatible with half-duplex networks) to provide separate transmit deferral receive data frame mechanisms using separate and independent input status signals, namely CRS and RX_DV. CRS provides a carrierSense signal used for deferral within the MAC transmit process, and RX_DV provides a receive_carrierSense signal that frames data within the MAC receive process. As long as CRS remains asserted, the transmitting station defers transmission, thereby implementing flow control. In addition to slight MAC layer modification, the present invention slightly modified the physical layer, MII interface and reconciliation sublayer.
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公开(公告)号：US5784559A
公开(公告)日：1998-07-21
申请号：US554097
申请日：1995-11-06
申请人： Howard M. Frazier , Shimon Muller
发明人： Howard M. Frazier , Shimon Muller
CPC分类号： H04L47/10 , H04L12/4013 , H04L12/413 , H04L47/13 , H04L47/266 , H04L49/351
摘要： CSMA/CD is used to implement flow control in a full-duplex Ethernet network in a lossless fashion. Uniquely identifiable flow control transmit on/off ("XON/XOFF") messages are transmitted, preferably during IPG, by a receiving station about to be congested to the transmitting station whose data output is to be controlled. The transmitting station physical layer receives and decodes these messages. If XOFF is recognized, the transmitting station continuously asserts CRS to its MAC layer at the MII, regardless of the prior CRS current state. CRS is continuously asserted until the receiving station transmits an XON flow control signal, indicating its ability to accept further data. During CRS assertion, the transmitting station defers transmission, e.g., is flow controlled. The MAC layer is slightly modified (but is still backward compatible with half-duplex networks) to provide separate transmit deferral receive data frame mechanisms using separate and independent input status signals, namely CRS and RX.sub.-- DV. CRS provides a carrierSense signal used for deferral within the MAC transmit process, and RX.sub.-- DV provides a receive.sub.-- carrierSense signal that frames data within the MAC receive process. As long as CRS remains asserted, the transmitting station defers transmission, thereby implementing flow control. In addition to slight MAC layer modification, the present invention slightly modified the physical layer, MII interface and reconciliation sublayer.
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公开(公告)号：US06956852B1
公开(公告)日：2005-10-18
申请号：US09339963
申请日：1999-06-25
IPC分类号： H04L12/00 , H04L12/413 , H04L12/46
CPC分类号： H04L12/4641 , H04L12/4633
摘要： A high speed communications interface divides data into a plurality of lanes, each lane encoded with clocking information, serialized, and sent to an interface. During cycles when there is no available data to send, IDLE_EVEN and IDLE_ODD cells are sent on alternating cycles. Data is transmitted by sending a header which spans all lanes and includes a START symbol. The final data transaction includes a Frame Check Sequence (FCS) which operates over the entire header and data. The packet is terminated by an END symbol, which is sent after the final data, and the remainder of the lanes are padded with IDLE_EVEN, IDLE_ODD, IDLE_EVEN_BUSY, or IDLE_ODD_BUSY cycles. The interface has a variable clock rate.
摘要翻译： 高速通信接口将数据划分成多个通道，每个通道用时钟信息编码，串行化并发送到接口。 在没有可用数据发送的周期期间，IDLE_EVEN和IDLE_ODD单元是以交替周期发送的。 通过发送跨越所有通道的头部并包括START符号来发送数据。 最终数据事务包括在整个报头和数据上操作的帧校验序列（FCS）。 数据包由END符号终止，该符号在最终数据之后发送，剩余的通道以IDLE_EVEN，IDLE_ODD，IDLE_EVEN_BUSY或IDLE_ODD_BUSY循环填充。 该接口具有可变的时钟速率。
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6.发明授权Carrier extension for gigabit/second ethernet networks operable up to at least 200 m distances 失效千兆/秒以太网网络的载波扩展可以运行至少200米的距离
公开(公告)号：US5940401A
公开(公告)日：1999-08-17
申请号：US781417
申请日：1997-01-10
IPC分类号： H04L12/413 , H04L12/44
CPC分类号： H04L12/44 , H04L12/413
摘要： Transmission rates of 1 Gb/sec. at up to at least 200 m diameter distances are achieved in an Ethernet environment by functionally decoupling frame size to network roundtrip time. This decoupling is achieved by extending the duration of the minimum size event to exceed the network roundtrip time. This extension of the carrier event is made without extending the data field and without altering the frame check sequence. Code implementing the media access control layer and reconciliation layer at the transmitting and receiving end of the network is modified such that at 1 Gb/sec. half-duplex, non-data symbols are appended to the end of short packet frames. The collision window is extended to include these symbols, which extension symbols are also included in fragment discard calculations. The extension is removed, however, before checking the frame check sequence, and before passing the frame to logical link and control. In a switched environment, the extension is not propagated to network links operating at less than 1000 Mb/sec. flowrates, which feature makes the invention backward compatible with existing slower transmission rate Ethernet networks. In full-duplex Ethernet environments, the media access control does not form the carrier extension.
摘要翻译： 传输速率为1 Gb / s。 在以太网环境中，通过功能上将帧大小去耦到网络往返时间，可以达到至少200米的直径距离。 通过将最小尺寸事件的持续时间延长超过网络往返时间来实现该去耦。 在不扩展数据字段而不改变帧校验序列的情况下进行载波事件的扩展。 在网络的发送和接收端实现媒体访问控制层和协调层的代码被修改为使得在1Gb /秒。 半双工，非数据符号附加到短数据包帧的末尾。 冲突窗口扩展为包括这些符号，扩展符号也包括在片段丢弃计算中。 然而，在检查帧检查序列之前，在将帧传递到逻辑链路和控制之前，该扩展被去除。 在交换环境中，扩展不传播到以小于1000 Mb /秒运行的网络链路。 流量，其特征使得本发明向下兼容现有的较慢传输速率的以太网。 在全双工以太网环境中，媒体访问控制不会形成载波扩展。
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