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    • 2. 发明申请
    • METHOD FOR SYNCHRONIZING A CLOCK OF A NETWORK COMPONENT WITH A CLOCK OF FURTHER NETWORK COMPONENT AND NETWORK COMPONENT THEREFOR
    • 用于与网络组件的时钟同步的进一步网络组件及其网络组件的时钟的方法
    • WO2008138850A1
    • 2008-11-20
    • PCT/EP2008/055677
    • 2008-05-08
    • THOMSON LICENSINGSIEMENS, EduardAUST, AndreasBROCKE, JensGLÄSER, FrankKÖHLER, RalfKUBSCH, Stefan
    • SIEMENS, EduardAUST, AndreasBROCKE, JensGLÄSER, FrankKÖHLER, RalfKUBSCH, Stefan
    • H04J3/06H04L12/56
    • H04J3/0667
    • The invention relates to a method for synchronizing a clock of a network component (A) with a clock of a further network component (B) communicatively connected to the network component (A) in a network and a network component, whereby the method comprises the following steps: determining a set of forward transition delays for transmission of messages from the network component (A) to the further network component (B) and a set of corresponding backward transition delays for transmission of messages from the further network component (B) to the network component (A), selecting a minimum forward transition delay (minF) from the set of forward transition delays, selecting a minimum backward transition delay from the set of backward transition delays (minB), deriving an estimated value for an offset between the clock of the network component (A) and the clock of the further network component (B) from the selected minimum forward transition delay (minF) and minimum backward transition delay (minB), and adjusting the clock of the network component (A) in accordance with the estimated value for the offset estimate.
    • 本发明涉及一种使网络组件(A)的时钟与网络和网络组件中的网络组件(A)通信连接的另一网络组件(B)的时钟同步的方法,由此该方法包括: 以下步骤:确定用于从网络组件(A)到另外的网络组件(B)的消息传输的一组前向转换延迟以及用于从所述另外的网络组件(B)到所述另外的网络组件(B)的消息传输的一组相应的后向过渡延迟 所述网络组件(A)从所述一组正向转移延迟中选择最小正向转移延迟(minF),从所述一组反向转移延迟(minB)中选择最小反向转移延迟,导出所述后向转移延迟 网络组件(A)的时钟和另外的网络组件(B)的时钟从所选择的最小正向转变延迟(minF)和最小向后转换段 y(minB),并且根据偏移估计的估计值调整网络组件(A)的时钟。
    • 3. 发明申请
    • A METHOD FOR TRANSFERRING DATA PACKETS, COMPUTER NETWORK ASSEMBLY AND ADAPTED NETWORK STATION
    • 传输数据分组的方法,计算机网络组件和适配网络站
    • WO2009109469A2
    • 2009-09-11
    • PCT/EP2009/051990
    • 2009-02-19
    • THOMSON LICENSINGAUST, AndreasKÖHLER, RalfGLÄSER, FrankKUBSCH, StefanSIEMENS, EduardBROCKE, Jens
    • AUST, AndreasKÖHLER, RalfGLÄSER, FrankKUBSCH, StefanSIEMENS, EduardBROCKE, Jens
    • H04L12/56H04N7/68
    • H04N19/89H04N21/6437
    • The invention relates to a method for transferring data packets from a source entity (10) connected to a network into a destination entity (20) by a zero-copy mechanism over a data transfer connection, the method comprising steps of : sending, by the source entity (10), the data packets received from the network to the destination entity (20) over the data packet transfer connection, receiving the data packets by the storage entity (20), and storing the received data packets in a memory space of the destination entity (20) according to a data packet memory assignment (50), wherein for the received data packets a consistency of order check is performed for the received data packets, and the data packet memory assignment (50) is updated according to a data packet order update information indicating an inconsistency of order in the received data packets when the inconsistency of order is observed in the consistency of order check. The invention further relates to a computer network assembly, especially a video or film production computer network assembly, comprising a software-implemented order check module configured to perform the method. The invention also relates to an adapted network station.
    • 本发明涉及一种通过数据传输连接通过零拷贝机制将数据分组从连接到网络的源实体(10)传送到目标实体(20)的方法,所述方法包括以下步骤: 源实体(10),通过数据分组传送连接从网络向目的实体(20)接收的数据分组,由存储实体(20)接收数据分组,并将接收到的数据分组存储在 所述目的实体(20)根据数据分组存储器分配(50),其中对于所接收的数据分组,对所接收的数据分组执行顺序校验的一致性,并且数据分组存储器分配(50)根据 数据分组顺序更新信息指示在顺序检查的一致性中观察到顺序不一致时接收到的数据分组中的顺序不一致。 本发明还涉及一种计算机网络组件,特别是视频或电影制作计算机网络组件,其包括被配置为执行该方法的软件实现的顺序检查模块。 本发明还涉及一种适应的网络站。
    • 5. 发明申请
    • A METHOD OF MANAGING A PACKET ADMINISTRATION MAP
    • 管理分发管理地图的方法
    • WO2010108958A1
    • 2010-09-30
    • PCT/EP2010/053840
    • 2010-03-24
    • THOMSON LICENSINGKUBSCH, StefanSIEMENS, EduardAUST, Andreas
    • KUBSCH, StefanSIEMENS, EduardAUST, Andreas
    • H04L1/18G06F17/30
    • H04L1/1835H04L1/1838H04L1/1841
    • The present invention relates to a method of managing a packet administration map for data packets to be received via a network, particularly for packet groups organized in sequences of consecutive packets. In the field of networking and reliable data transport, as for example in case of TCP, bursty packet drops occur during a data transmission. Especially in high speed networks like in 10 Gb Ethernet, the handling of lost and retransmitted packets can introduce a disproportionate decrease of the net data rate. A reliable transport protocol usually retransmits a data packet that a receiver was not able to receive and thus was not acknowledged. In order to manage data packets that are retransmitted, a receiver in the network monitors sequence numbers and stores missing sequence numbers within an internal data structure, called packet administration map. According to the invention a reversed keying is used which means that the upper limit of the range of contiguous missing data packets is used as the key entry in the administration map. As the retransmitted packets usually are retransmitted in an increasing order of sequence numbers, with the help of the invention it becomes very seldomly necessary to split a packet administration entry or to create a new packet administration entry.
    • 本发明涉及一种管理要经由网络接收的数据分组的分组管理映射的方法,特别是针对以连续分组的顺序组织的分组组。 在网络和可靠数据传输领域,例如在TCP的情况下,在数据传输期间发生突发分组丢失。 特别是在像10 Gb以太网这样的高速网络中,丢失和重发数据包的处理可能会导致净数据速率的不成比例的下降。 可靠的传输协议通常重传接收机不能接收的数据分组,因此未被承认。 为了管理重传的数据包,网络中的接收器监视序列号,并在内部数据结构中存储丢失的序列号,称为数据包管理映射。 根据本发明,使用反向键控,这意味着连续丢失数据分组的范围的上限被用作管理图中的键入口。 由于重传的分组通常按照序列号的增加顺序被重传,借助于本发明,分割分组管理条目或者创建新的分组管理条目变得非常必要。