Enhanced port activity monitor for an integrated multiport repeater
    31.
    发明授权
    Enhanced port activity monitor for an integrated multiport repeater 失效
    增强的端口活动监视器,用于集成多端口转发器

    公开(公告)号:US5459714A

    公开(公告)日:1995-10-17

    申请号:US21008

    申请日:1993-02-22

    摘要: A system is provided on an Integrated Multiport Repeater (IMR) to monitor the activity of the IMR when the repeater is in minimum mode. Through this system the serial output pin outputs status based upon inputs at two input pin the signal in and the clock signal. In a preferred embodiment there are four different status outputs, partition, loopback/link, Bitrate and SQE/Polarity. This system finds use in low end applications where complex control circuitry is not desired.

    摘要翻译: 在集成多端口中继器(IMR)上提供一个系统,用于在中继器处于最小模式时监视IMR的活动。 通过该系统,串行输出引脚基于两个输入引脚输入信号输入和时钟信号的状态。 在优选实施例中,存在四种不同的状态输出,分区,环回/链路,比特率和SQE /极性。 该系统适用于不需要复杂控制电路的低端应用。

    Address tracking over repeater based networks
    32.
    发明授权
    Address tracking over repeater based networks 失效
    基于中继器网络的地址跟踪

    公开(公告)号:US5414694A

    公开(公告)日:1995-05-09

    申请号:US19926

    申请日:1993-02-19

    CPC分类号: H04L12/4625 H04L12/46

    摘要: A system is provided for use in a network to provide authentication of packets of data, provide security to ensure the prevention of unauthorized receipt of data, to provide improved monitoring of the packets of data transmitted and received over such a network, and to detect changes in the network topology. Repeaters utilized in the network are provided with the capability to detect and interpret packet data and the source address (SA) and destination address (DA) fields to provide the improved features.

    摘要翻译: 提供一种在网络中使用的系统来提供数据分组的认证,提供安全性以确保防止未经授权的数据接收,提供对通过这样的网络发送和接收的数据分组的改进的监视,以及检测变化 在网络拓扑中。 在网络中使用的中继器具有检测和解释分组数据和源地址(SA)和目的地址(DA)字段以提供改进的特征的能力。

    Method and apparatus for controlling data transfer between EEPROM and a physical layer device
    33.
    发明授权
    Method and apparatus for controlling data transfer between EEPROM and a physical layer device 有权
    用于控制EEPROM和物理层设备之间的数据传输的方法和装置

    公开(公告)号:US08856391B1

    公开(公告)日:2014-10-07

    申请号:US12616111

    申请日:2009-11-10

    CPC分类号: G06F13/1684

    摘要: An IEEE 802.3 compliant physical layer device provides efficient loading of configuration information of the physical layer device. The configuration information is written into a volatile memory in the physical layer device, and then uploaded to at least one EEPROM. The configuration information is downloaded to the volatile memory during startup of the physical layer device. The system controller can also directly access the EEPROMs, bypassing the volatile memory. By providing a bridge between the system controller and the EEPROMs and providing additional bits in the volatile memory of the physical layer device, the system controller can read and write the EEPROMs one byte at a time. During reset time, the content of the EEPROMs is written to registers in the physical layer device to configure the physical layer device.

    摘要翻译: 符合IEEE 802.3标准的物理层设备提供物理层设备的配置信息的高效加载。 配置信息被写入物理层设备中的易失性存储器中,然后上传到至少一个EEPROM。 配置信息在物理层设备启动期间被下载到易失性存储器。 系统控制器也可以直接访问EEPROM,绕过易失性存储器。 通过在系统控制器和EEPROM之间提供桥接器,并在物理层器件的易失性存储器中提供额外的位,系统控制器可以一次读取一个字节的EEPROM。 在复位期间,将EEPROM的内容写入物理层设备中的寄存器,以配置物理层设备。

    Methods and apparatus for performing reverse auto-negotiation in network communication
    34.
    发明授权
    Methods and apparatus for performing reverse auto-negotiation in network communication 有权
    在网络通信中执行反向自动协商的方法和装置

    公开(公告)号:US08665901B1

    公开(公告)日:2014-03-04

    申请号:US13280098

    申请日:2011-10-24

    IPC分类号: H04J3/22

    CPC分类号: H04L41/0806 H04L12/4013

    摘要: The present invention relates to methods and apparatus for performing reverse auto-negotiation, in which one network device establishes a link with another network device at a preferred operating mode (e.g., the lowest speed) common to both devices without linking twice. The physical layer of a local network device (local PHY) may stall the normal auto-negotiation process with the link partner, while receiving the abilities of the link partner. The local PHY may then transmit a signal having only the preferred common operating mode (e.g., the lowest speed) encoded within. The link partner may then conclude that the local PHY is only capable of the preferred common operating mode (e.g., the lowest speed) and a link between the two devices may be established at that common mode.

    摘要翻译: 本发明涉及用于执行反向自动协商的方法和装置,其中一个网络设备在两个设备共同的优选操作模式(例如,最低速度)下建立与另一个网络设备的链路,而不链接两次。 本地网络设备(本地PHY)的物理层可以在接收到链路伙伴的能力的同时阻止与链路伙伴的正常自动协商过程。 本地PHY然后可以发送仅具有在其内编码的优选公共操作模式(例如,最低速度)的信号。 然后,链路伙伴可以得出结论,本地PHY仅能够具有优选的公共操作模式(例如,最低速度),并且可以在该共同模式下建立两个设备之间的链路。

    Fast link down
    35.
    发明授权
    Fast link down 有权
    快速链接下来

    公开(公告)号:US08599679B1

    公开(公告)日:2013-12-03

    申请号:US12945262

    申请日:2010-11-12

    申请人: William Lo

    发明人: William Lo

    IPC分类号: H04L1/00

    CPC分类号: H04L1/24 H04L43/0823

    摘要: An apparatus including a monitoring module, a first timer, and a first circuit. The monitoring module is configured to (i) monitor a link when the link is up and (ii) detect when the link fails. The first timer is configured to expire in a predetermined time after the link fails. The first circuit is configured to generate an indication that the link is down. The first circuit is configured to generate the indication (i) in response to the monitoring module detecting that the link has failed and (ii) before the first timer expires.

    摘要翻译: 一种包括监视模块,第一定时器和第一电路的装置。 监控模块被配置为(i)当链路启动时监控链路,(ii)检测链路何时失败。 第一定时器被配置为在链路发生故障之后的预定时间内过期。 第一电路被配置为产生链路关闭的指示。 第一电路被配置为响应于监视模块检测到链路已经失败并且(ii)在第一定时器期满之前产生指示(i)。

    Physical layer devices for network switches
    37.
    发明授权
    Physical layer devices for network switches 有权
    网络交换机的物理层设备

    公开(公告)号:US08576865B1

    公开(公告)日:2013-11-05

    申请号:US13174096

    申请日:2011-06-30

    IPC分类号: H04L12/28 H04L12/56 H04L12/66

    CPC分类号: H04L49/557 H04L49/30

    摘要: A switch includes a first IC and a second IC. The first IC includes a first set of (N+1) serializer/deserializer (SERDES) modules communicating with a first set of (N+1) SERDES modules of a switch IC; a first set of N SERDES modules communicating with a first set of N ports; and a first set of N multiplexer modules communicating with (i) the first set of N SERDES modules and (ii) the first set of (N+1) SERDES modules of the first IC. The second IC includes a second set of (N+1) SERDES modules communicating with a second set of (N+1) SERDES modules of the switch IC; a second set of N SERDES modules communicating with a second set of N ports; and a second set of N multiplexer modules communicating with (i) the second set of N SERDES modules and (ii) the second set of (N+1) SERDES modules of the second IC.

    摘要翻译: 开关包括第一IC和第二IC。 第一IC包括与开关IC的第一组(N + 1)SERDES模块通信的第一组(N + 1)串行器/解串器(SERDES)模块; 与第一组N个端口通信的第一组N SERDES模块; 以及与(i)第一组N个SERDES模块和(ii)第一IC的第(N + 1)个SERDES模块组通信的第一组N个多路复用器模块。 第二IC包括与开关IC的第(N + 1)个SERDES模块通信的第二组(N + 1)SERDES模块; 与第二组N个端口通信的第二组N SERDES模块; 以及第二组N个多路复用器模块,其与(i)第二组N个SERDES模块和(ii)第二IC的第(N + 1)个SERDES模块组通信。

    Network interface with autonegotiation and cable length measurement
    38.
    发明授权
    Network interface with autonegotiation and cable length measurement 有权
    具有自动协商和电缆长度测量的网络接口

    公开(公告)号:US08472340B1

    公开(公告)日:2013-06-25

    申请号:US13224920

    申请日:2011-09-02

    申请人: William Lo

    发明人: William Lo

    IPC分类号: H04L12/26

    摘要: A network device including a transceiver module, an autonegotiation module, and a cable length estimator. The transceiver module is configured to communicate with a second network device via a wire medium. The autonegotiation module is configured to i) detect a selector field of the second network device, ii) transmit, in response to the selector field of the second network device matching a first predetermined value, a first base page to the second network device via the transceiver module, and iii) transmit, in response to the selector field of the second network device matching a second predetermined value, a second base page to the second network device via the transceiver module. The cable length estimator is configured to, in response to the selector field of the second network device matching the second predetermined value, determine a physical length of the wire medium.

    摘要翻译: 一种包括收发器模块,自动协商模块和电缆长度估计器的网络设备。 收发器模块被配置为经由有线介质与第二网络设备进行通信。 自动协商模块被配置为i)检测第二网络设备的选择器字段,ii)响应于与第一预定值匹配的第二网络设备的选择器字段,经由第一网络设备将第一基页发送到第二网络设备 收发器模块,以及iii)响应于与第二预定值匹配的第二网络设备的选择器字段,经由收发器模块将第二基页发送到第二网络设备。 电缆长度估计器被配置为响应于与第二预定值匹配的第二网络设备的选择器字段来确定有线介质的物理长度。

    Cable tester
    39.
    发明授权
    Cable tester 有权
    电缆测试仪

    公开(公告)号:US08416699B1

    公开(公告)日:2013-04-09

    申请号:US12887910

    申请日:2010-09-22

    申请人: William Lo

    发明人: William Lo

    IPC分类号: G01R31/08

    CPC分类号: H04L43/50

    摘要: A physical layer device for a network interface, in which the physical layer device includes a cable-test module and a data processing module. The physical layer module is configured to selectively test a cable connected to the physical layer device and to generate test data. The data processing module includes a first processor configured to process the test data and to generate test results indicating a cable status of the cable. The first processor is configured to selectively communicate the cable status to a second processor of a medium access controller.

    摘要翻译: 一种用于网络接口的物理层设备,其中物理层设备包括电缆测试模块和数据处理模块。 物理层模块被配置为选择性地测试连接到物理层设备的电缆并生成测试数据。 数据处理模块包括被配置为处理测试数据并产生指示电缆的电缆状态的测试结果的第一处理器。 第一处理器被配置为选择性地将电缆状态传送到介质访问控制器的第二处理器。

    System and method for generating a frequency rich spectrum in a data stream
    40.
    发明授权
    System and method for generating a frequency rich spectrum in a data stream 有权
    用于在数据流中生成频谱丰富频谱的系统和方法

    公开(公告)号:US08165176B1

    公开(公告)日:2012-04-24

    申请号:US12241253

    申请日:2008-09-30

    IPC分类号: H04J3/02

    摘要: A system and method for generating a frequency rich spectrum in a data stream is disclosed. A network interface comprises a substitutor module, a symbol replacement module, and an encoder module. The substitutor module replaces idle streams in a first data stream with alignment symbols, boundary symbols and disposable symbols to generate a second data stream. The symbol replacement module receives the second data stream, generates random data, and replaces one or more of the disposable symbols in the second data stream with the random data in order to generate a third data stream. The encoder module encodes the third data stream.

    摘要翻译: 公开了一种在数据流中产生频谱丰富频谱的系统和方法。 网络接口包括替代模块,符号替换模块和编码器模块。 替代模块用对准符号,边界符号和一次性符号代替第一数据流中的空闲流,以产生第二数据流。 符号替换模块接收第二数据流,产生随机数据,并用随机数据替换第二数据流中的一个或多个一次性符号,以便生成第三数据流。 编码器模块对第三数据流进行编码。