Method and system for transporting constant bit rate clients across a packet interface
    1.
    发明授权
    Method and system for transporting constant bit rate clients across a packet interface 有权
    用于在分组接口上传输恒定比特率客户端的方法和系统

    公开(公告)号:US09019997B1

    公开(公告)日:2015-04-28

    申请号:US13843459

    申请日:2013-03-15

    IPC分类号: H04J3/06 H04B10/07

    摘要: This disclosure describes a method and apparatus for signaling the phase and frequency of OTN and Constant Bit Rate (CBR) clients in an OTN network. The principles discussed are applicable when multiple stages of OTN multiplexing and demultiplexing are utilized. They are also applicable for use with the Generic Mapping Procedure (GMP) and Asynchronous Mapping Procedure (AMP). A method to use the phase and frequency of an ODUk/ODUflex to adjust a local reference clock to enable the recovery of the phase and frequency of a CBR client demapped from the ODUk/ODUflex is described.

    摘要翻译: 本公开描述了用于在OTN网络中用信号通知OTN和恒定比特率(CBR)客户端的相位和频率的方法和装置。 所讨论的原理适用于使用多级OTN复用和解复用的多个阶段。 它们也适用于通用映射过程(GMP)和异步映射过程(AMP)。 描述了使用ODUk / ODUflex的相位和频率来调整本地参考时钟以使得能够恢复从ODUk / ODUflex解映射的CBR客户端的相位和频率的方法。

    High bandwidth GFP demapper
    2.
    发明授权
    High bandwidth GFP demapper 有权
    高带宽GFP解映射器

    公开(公告)号:US09276874B1

    公开(公告)日:2016-03-01

    申请号:US13839961

    申请日:2013-03-15

    摘要: A system and method of delineating GFP data. The GFP framer comprises a candidate generator for generating an array of core header candidates from a data word received on a data bus, a candidate processor for generating a plurality of candidate tours and a frame delineator for identifying a candidate tour as an active tour and delineating the boundaries of the GFP frames defined by the active tour. Each core header candidate defines a reference position of one of the plurality of candidate tours. Each of the plurality of candidate tour comprises a record of core header positions for a series of GFP frames from the data word.

    摘要翻译: 描述GFP数据的系统和方法。 GFP成帧器包括候选发生器,用于从数据总线上接收的数据字生成核心标题候选的阵列,用于产生多个候选旅行的候选处理器和用于识别作为活动巡视的候选游览的帧描绘符,并且描绘 由主动巡视定义的GFP帧的边界。 每个核心头候选者定义多个候选旅游之一的参考位置。 多个候选巡视中的每一个包括来自数据字的一系列GFP帧的核心头部位置的记录。

    Self-synchronous scrambler/descrambler and method for operating same
    3.
    发明授权
    Self-synchronous scrambler/descrambler and method for operating same 有权
    自同步加扰器/解扰器及其操作方法

    公开(公告)号:US08976816B1

    公开(公告)日:2015-03-10

    申请号:US13842175

    申请日:2013-03-15

    IPC分类号: H04J3/06 H04L29/06

    CPC分类号: H04J3/0605 H04L12/6418

    摘要: A self-synchronous scrambler/descrambler and method for operating same are disclosed. A self-synchronous scrambler/descrambler comprises an M-bit Scrambler State memory for retaining M previously scrambled/descrambled bits, a SOP/EOP Zero Inserter for receiving replacing certain bytes of the bus word with a value of zero, a Mid-Packet Word Logic for scrambling/descrambling the received bits using the previously scrambled/descrambled bits from the M-bit Scrambler State memory; and a Barrel Shifter for rotating the M-bit Scrambler State memory backwards. The method for scrambling/descrambling bits, comprising receiving a bus word, replacing certain bytes of the bus word, scrambling/descrambling bits of the bus word by exclusive-ORing with previously scrambled/descrambled bits, retaining the scrambled/descrambled bits of the bus word; and rotating the scrambled/descrambled bits of the bus word backwards an amount.

    摘要翻译: 公开了一种自同步扰码器/解扰器及其操作方法。 自同步扰频器/解扰器包括用于保留M个先前被加扰/解扰比特的M比特加扰器状态存储器,SOP / EOP零插入器,用于接收替换零值的总线字的某些字节;中分组字 用于使用来自M位加扰器状态存储器的先前加扰/解扰比特来对接收到的比特进行加扰/解扰的逻辑; 以及用于向后旋转M位加扰器状态存储器的桶移位器。 用于加扰/解扰比特的方法,包括接收总线字,替换总线字的某些字节,通过与先前加扰/解扰比特异或来对总线字进行加扰/解扰比特,保持总线的加扰/解扰比特 字; 并且将总线字的加扰/解扰比特的数据向后旋转一定量。

    System and method for network switching
    4.
    发明授权
    System and method for network switching 有权
    网络切换的系统和方法

    公开(公告)号:US09313563B1

    公开(公告)日:2016-04-12

    申请号:US13830231

    申请日:2013-03-14

    IPC分类号: H04Q11/00

    摘要: Provided is a method and system for switching between signals in an optical transport network. The method includes extracting identification data from an OTN signal at a termination sink and inserting the identification data into an Ethernet packet. The system includes a termination sink configured to extract identification data from an OTN signal and insert the identification data into an Ethernet packet.

    摘要翻译: 提供了一种用于在光传输网络中切换信号的方法和系统。 该方法包括从终端宿中的OTN信号提取识别数据,并将识别数据插入到以太网分组中。 该系统包括一个配置成从OTN信号中提取标识数据并将识别数据插入到以太网数据包中的终端接收端。

    GFP frame filter
    5.
    发明授权
    GFP frame filter 有权
    GFP帧过滤器

    公开(公告)号:US09374265B1

    公开(公告)日:2016-06-21

    申请号:US13839249

    申请日:2013-03-15

    IPC分类号: H04L29/08 H04L29/06

    CPC分类号: H04L29/0653 H04L69/22

    摘要: A GFP frame filter is provided to filter GFP frame data based on extracted GFP header data. The header data comprises EXI, PTI, and UPI fields. The header data can also comprise a generic header that can be customized to provide additional GFP frame filtering applications. The GFP frame filter comprises a plurality of programmable filters arranged to process GFP header data in parallel according to various programmable filter configurations. The plurality of programmable filters can be configured to operate in conjunction in a particular sequence.

    摘要翻译: 提供GFP帧滤波器以基于提取的GFP标题数据来过滤GFP帧数据。 标题数据包括EXI,PTI和UPI字段。 报头数据还可以包括可以被定制以提供附加的GFP帧过滤应用的通用报头。 GFP帧滤波器包括多个可编程滤波器,其被布置为根据各种可编程滤波器配置并行处理GFP标题数据。 多个可编程滤波器可以被配置为以特定顺序结合操作。

    Demultiplexing high-order to low-order ODU signals in an optical transport network
    6.
    发明授权
    Demultiplexing high-order to low-order ODU signals in an optical transport network 有权
    在光传输网络中解复用高阶到低阶的ODU信号

    公开(公告)号:US09288006B1

    公开(公告)日:2016-03-15

    申请号:US13837798

    申请日:2013-03-15

    IPC分类号: H04J14/00 H04J14/02

    摘要: A method and apparatus are provided for de-multiplexing one or more Low-Order ODUj/ODUflex clients from a High-Order ODUk carrier. The number of TribSlots assigned to an ODUflex may be increased and decreased hitlessly, in accordance to ITU-T G.7044. In the Multiplexing direction, a Space-Time-Space switch is used to interleave bytes from Low-Order ODUk words into High-Order ODUk words. In the De-multiplexing direction, a similar switch is used to extract Low-Order ODUj bytes that are interleaved inside High-Order ODUk words and re-arrange them into Low-Order ODUj words.

    摘要翻译: 提供一种用于从高阶ODUk载波解复用一个或多个低阶ODUj / ODUflex客户端的方法和装置。 根据ITU-T G.7044,分配给ODUflex的TribSlot的数量可能会无级增加和减少。 在多路复用方向,使用空时空间交换机将低阶ODUk字节的字节交织成高阶ODUk字。 在解复用方向上,类似的开关用于提取高阶ODUk字中交错的低阶ODUj字节,并重新排列成低阶ODUj字。

    Multiplexing low-order to high-order ODU signals in an optical transport network
    7.
    发明授权
    Multiplexing low-order to high-order ODU signals in an optical transport network 有权
    在光传输网络中复用低阶到高阶ODU信号

    公开(公告)号:US09025594B1

    公开(公告)日:2015-05-05

    申请号:US13835443

    申请日:2013-03-15

    摘要: A method and apparatus are provided for multiplexing one or more Low-Order (LO) ODUj/ODUflex clients into a High-Order (HO) ODUk in an Optical Transport Network (OTN). LO bytes are multiplexed in accordance with a tributary slot assignment for a selected LO ODUj of the HO ODUk stream using a permutation matrix. In an implementation, each byte on each ingress port of a W-port space-time-space switch is configurably assigned to an associated timeslot of an associated egress port, using time-division multiplexing. The number of TribSlots assigned to an ODUflex may be increased and decreased hitlessly. A Clos-like Space-Time-Space switch is used to interleave bytes from Low-Order ODUk words into High-Order ODUk words.

    摘要翻译: 提供一种用于将一个或多个低阶(LO)ODUj / ODUflex客户端复用到光传输网络(OTN)中的高阶(HO)ODUk中的方法和装置。 根据使用置换矩阵的HO ODUk流的选择的LO ODUj的分支时隙分配,LO字节被复用。 在一个实现中,使用时分复用将W端口空时交换机的每个入口端口上的每个字节配置为相关联的出口端口的相关联的时隙。 分配给ODUflex的TribSlot的数量可能会无限增加和减少。 Clos-like Space-Time-Space交换机用于将低阶ODUk字节的字节交织成高阶ODUk字。

    Justification insertion and removal in generic mapping procedure in an optical transport network
    8.
    发明授权
    Justification insertion and removal in generic mapping procedure in an optical transport network 有权
    在光传输网络中的通用映射过程中的对齐插入和删除

    公开(公告)号:US08989222B1

    公开(公告)日:2015-03-24

    申请号:US13836100

    申请日:2013-03-15

    IPC分类号: H04J3/16 H04J14/02

    摘要: A method and apparatus are provided for generating Generic Mapping Procedure (GMP) stuff/data decisions, which avoids brute force modulo arithmetic and is efficient for hitless adjustment of ODUFIex (G.7044) in an Optical Transport Network (OTN). Addition operations are used, rather than multiplication operations, to facilitate faster and less computationally expensive calculation of data/stuff decisions, based on calculated residue values. Residue values are logically arranged in rows to facilitate residue calculation, such as based on relationships with previously calculated residue values. This method is also applicable for mapping and de-mapping Constant Bit Rate (CBR) clients into and from an ODUk carrier.

    摘要翻译: 提供了一种用于生成通用映射过程(GMP)填充/数据决策的方法和装置,其避免了强力模运算,并且对于在光传输网络(OTN)中的ODUFIex(G.7044)进行无中断调整是有效的。 使用加法运算,而不是乘法运算,以便根据计算的残差值来促进更快,更少的计算量昂贵的数据/物料决策计算。 残留值在逻辑上排列排列以便于残差计算,例如基于与先前计算的残差值的关系。 该方法也适用于将常数比特率(CBR)客户端映射和解映射到ODUk运营商中。