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    • 41. 发明公开
    • Mechanism for dispatching packets via a telecommunications network
    • 机械工程师Verteilen von Paketenüberein Telekommunikationsnetz
    • EP0912028A2
    • 1999-04-28
    • EP98402355.6
    • 1998-09-24
    • Sun Microsystems, Inc.
    • Bellaton, GillesBancilhon, Herve L.
    • H04L29/06H04L12/56
    • H04L49/9021H04L29/06H04L47/62H04L49/90H04L49/901H04L49/9084
    • A mechanism for dispatching a sequence of packets via a telecommunications network includes a queue for packets for transmission and a queue controller responsive to receipt of a new packet for transmission to compare parameters of the new packet to parameters of any packet already in the queue, the queue controller determining whether to queue or drop the new packet depending on the result of the comparison(s). The queue can be implemented as a linked list of packet entries with individual pointers to the respective packets concerned. The queue entries can include details relating to the packet including data relating to the information flow and also the packet identity. In a TCP environment, the flow information can include the source IP address and the source TCP port, as well as the destination IP address and the destination TCP port. The identity information can include sequence numbers and acknowledgement numbers for the packet concerned. In order to optimize network usage, it can be useful to drop some packets at a routing node. A decision to drop a packet can be made if the new packet and a queued packet relate to the same information flow, the new packet sequence number equals the queued packet sequence number and the new packet acknowledgement number is less than the queued packet acknowledgement number. The new packet is dropped where the new packet is a retransmission of a queued packet and the length of the queued packet is greater than or equal to that of the new packet. A queued packet is replaced by a new packet when the new packet is determined to be a retransmission of the queued packet and the length of the new packet is greater than that of the queued packet.
    • 用于通过电信网络分发分组序列的机制包括用于传输的分组的队列(116)和响应于接收到用于传输的新分组的队列控制器(112),以将新分组的参数与任何分组的参数进行比较 已经在队列(116)中,队列控制器(112)根据比较的结果确定是否排队或删除新的分组。 队列(116)可以被实现为具有到相关分组的单独指针的分组条目的链表。 队列条目可以包括与分组有关的细节,包括与信息流相关的数据以及分组身份。 在TCP环境中,流信息可以包括源IP地址和源TCP端口,以及目的IP地址和目标TCP端口。 身份信息可以包括有关分组的序列号和确认号码。 为了优化网络使用,丢弃路由节点上的一些数据包可能是有用的。 如果新分组和排队分组与相同的信息流相关,新的分组序列号等于排队的分组序列号,新的分组确认号小于排队的分组确认号,则可以进行丢弃分组的决定。 新分组丢弃,其中新分组是队列分组的重传,并且排队分组的长度大于或等于新分组的长度。 当新分组被确定为排队分组的重传并且新分组的长度大于排队分组的长度时,排队的分组被新分组替换。
    • 42. 发明公开
    • Continuous data server apparatus and data transfer scheme enabling multiple simultaneous data accesses
    • 服务器的连续数据和数据传输方案的多个并发数据访问
    • EP0727750A2
    • 1996-08-21
    • EP96102361.1
    • 1996-02-16
    • KABUSHIKI KAISHA TOSHIBA
    • Kanai, TatsunoriAsano, ShigehiroAikawa, TakeshiAmano, Shinya
    • G06F17/30G06F3/06
    • H04L49/90G06F3/0601G06F11/1076G06F11/1088G06F2003/0692H04L47/50H04L49/9021H04L49/9047H04L49/9073
    • A continuous data server apparatus incorporating a plurality of buffer memory units for storing the continuous data read out by the data memory control units and to be given to the communication control unit, at least one buffer memory unit being provided dedicatedly for each combination of one data memory control unit group formed by at least one data memory control unit and one communication control unit group formed by at least one communication control unit. The apparatus may further incorporate a plurality of calculation units connected in series, where each calculation unit is connected between corresponding one data memory control unit group and at least one buffer memory unit, and carrying out a prescribed calculation processing. The continuous data can be arranged over a plurality of data memory control units in word units, such that the data memory control units read out the continuous data in block units, the buffer memory units store the continuous data in block units, and the communication control unit transfers the continuous data obtained by reading out data the buffer memory units sequentially in word units.
    • 连续数据服务器装置结合的缓冲存储器单元的多个用于存储所述连续数据读出由数据存储控制单元和将被提供给通信控制单元,被用于一个数据的每个组合专用地设置的至少一个缓冲存储器单元 存储器控制单元组由至少一个数据存储控制单元,并通过至少一个通信控制单元形成的一个通信控制单元组而形成。 该装置可并入串联连接的进一步计算单元,其中每个计算单元被连接对应的一个数据存储控制单元组和至少一个缓冲存储器单元,并进行规定的计算处理之间的复数。 连续数据可以通过的以字为单位的数据的存储器控​​制单元的多元被布置,检查做了数据存储器的控制单元读出在块单元中的连续数据和缓冲存储器单元存储在块单元中的连续数据,和通信控制 单元将通过读出的数据在缓冲存储器单元顺序地以字为单位获得的连续数据。