Packet flow monitor and control system
    1.
    发明授权
    Packet flow monitor and control system 失效
    分组流量监控系统

    公开(公告)号:US06226265B1

    公开(公告)日:2001-05-01

    申请号:US08679362

    申请日:1996-07-08

    IPC分类号: H04J116

    摘要: In a first UPC, a PCR is set as a monitor rate for each connection. If a transfer rate of a cell exceeds the PCR set for the connection, the cell is discarded. In a second UPC, an ACR is set as a monitor rate for each connection. If the transfer rate of the cell exceeds the ACR set for the connection, a lower priority is assigned to that cell. Additionally, with a configuration where one UPC monitors a varying rate, a parameter change process is controlled by obtaining a time between a passage time of a detected B-RM cell and an arrival of a user cell and comparing the obtained time with maximum and minimum delay standard values. A parameter table including some parameters is provided. A header of an arrived cell in a forward direction is extracted, and it is determined whether or not the arrived cell is a violation cell using the leaky bucket algorithm, etc. If the arrived cell is a violation cell, it is discarded. An RM cell in a backward direction is received and extracted, and the parameter table is updated by calculating the minimum cell interval, etc. based on data included in a payload of the RM cell.

    摘要翻译: 在第一UPC中,将PCR设置为每个连接的监视速率。 如果小区的传输速率超过连接的PCR集,则丢弃该小区。 在第二UPC中,将ACR设置为每个连接的监视速率。 如果小区的传输速率超过为连接设置的ACR,则将较低的优先级分配给该小区。 此外,利用一个UPC监视变化速率的配置,通过获得检测到的B-RM单元的通过时间与用户单元的到达之间的时间来控制参数改变处理,并将获得的时间与最大和最小值进行比较 延迟标准值。 提供了包括一些参数的参数表。 提取到向前方的到达小区的报头,并且使用泄漏桶算法等确定到达的小区是否是违规小区。如果到达的小区是违规小区,则将其丢弃。 接收并提取向后方向的RM单元,并且通过基于包括在RM单元的有效载荷中的数据来计算最小单元间隔等来更新参数表。

    Connection admission control system
    3.
    发明授权
    Connection admission control system 失效
    连接准入控制系统

    公开(公告)号:US5751691A

    公开(公告)日:1998-05-12

    申请号:US274687

    申请日:1994-07-14

    IPC分类号: H04L12/56 H04Q11/04 H04L29/02

    摘要: In an ATM switching system responsive to a call setup request from each of B-ISDN terminals, a band for an accepted call is estimated in accordance with fuzzy decision on the basis of the fact that the network traffic characteristics can be determined empirically. Therefore, it is possible to estimate the band without any complicated band estimation calculations, improve the call acceptance processing response speed, and further improve the availability efficiency of the network transmission line. In the consequents of the fuzzy rules in particular, the respective band estimation values are represented by the respective input functions, or particularly by the linear couplings coupled by predetermined linear parameters of respective inputs, thus improving the descriptive capacity of the rules.

    摘要翻译: 在响应于来自每个B-ISDN终端的呼叫建立请求的ATM交换系统中,基于可以凭经验确定网络业务特性的事实,根据模糊决定来估计用于接受呼叫的频带。 因此,可以在没有任何复杂的频带估计计算的情况下估计频带,提高呼叫接收处理响应速度,并且进一步提高网络传输线的可用性效率。 在特别是模糊规则的结果中,相应的带估计值由相应的输入函数表示,特别是通过由相应输入的预定线性参数耦合的线性耦合来表示,从而提高了规则的描述能力。

    Connection admission control system
    4.
    发明授权
    Connection admission control system 失效
    连接准入控制系统

    公开(公告)号:US5341366A

    公开(公告)日:1994-08-23

    申请号:US32113

    申请日:1993-03-17

    摘要: In an ATM switching system responsive to a call setup request from each of B-ISDN terminals, a band for an accepted call is estimated in accordance with fuzzy decision on the basis of the fact that the network traffic characteristics can be determined empirically. Therefore, it is possible to estimate the band without any complicated band estimation calculations, improve the call acceptance processing response speed, and further improve the availability efficiency of the network transmission line. In the consequents of the fuzzy rules in particular, the respective band estimation values are represented by the respective input functions, or particularly by the linear couplings coupled by predetermined linear parameters of respective Inputs, thus improving the descriptive capacity of the rules.

    摘要翻译: 在响应于来自每个B-ISDN终端的呼叫建立请求的ATM交换系统中,基于可以凭经验确定网络业务特性的事实,根据模糊决定来估计用于接受呼叫的频带。 因此,可以在没有任何复杂的频带估计计算的情况下估计频带,提高呼叫接收处理响应速度,并且进一步提高网络传输线的可用性效率。 在特别是模糊规则的结果中,相应的带估计值由相应的输入函数表示,特别是通过由相应输入的预定线性参数耦合的线性耦合,从而提高规则的描述能力。

    ATM exchange for monitoring congestion and allocating and transmitting
bandwidth-guaranteed and non-bandwidth-guaranteed connection calls
    6.
    发明授权
    ATM exchange for monitoring congestion and allocating and transmitting bandwidth-guaranteed and non-bandwidth-guaranteed connection calls 失效
    ATM交换机用于监控拥塞并分配和发送带宽保证和非带宽保证的连接呼叫

    公开(公告)号:US5696764A

    公开(公告)日:1997-12-09

    申请号:US403907

    申请日:1995-04-13

    摘要: An ATM including both a bandwidth-guaranteed connection call and a non-bandwidth-guaranteed connection call together, with respect to the bandwidth-guaranteed connection call, a scheduler 21 allocates the number of time slots which correspond to a required bandwidth to the bandwidth-guaranteed connection call from among the N time slots which constitute one period and so controls as to transmit an ATM cell at an allocated time slot. A non-bandwidth-guaranteed cell transmitting element 31 transmits an ATM cell of a non-bandwidth-guaranteed connection call at a time slot which is not allocated at any bandwidth-guaranteed connection call. A congestion/normal state monitoring element 121 sets in advance a queue length which is regarded as the occurrence of a long-term congestion in a queuing buffer 111, and compares the actual queue length with the preset queue length so as to detect the occurrence of a long-term congestion.

    摘要翻译: PCT No.PCT / JP94 / 01199 Sec。 371日期1995年04月13日 102(e)1995年4月13日PCT PCT 1994年7月21日PCT公布。 第WO95 / 03657号公报 日期1995年2月2日,一个包括有带宽保证连接呼叫和非带宽保证连接呼叫的ATM,相对于带宽保证连接呼叫,调度器21分配与所需的连接呼叫相对应的时隙数 带宽到构成一个周期的N个时隙中的带宽保证的连接呼叫,因此控制在分配的时隙发送ATM信元。 非带宽保证小区发送单元31在没有在任何带宽保证的连接呼叫下分配的时隙发送非带宽保证的连接呼叫的ATM信元。 拥塞/正常状态监视元件121预先设置队列长度,该队列长度被认为是排队缓冲器111中的长期拥塞的发生,并将实际队列长度与预设队列长度进行比较,以便检测 长期拥堵。

    Connection admission control method and system in a network for a
bandwidth allocation based on the average cell rate
    7.
    发明授权
    Connection admission control method and system in a network for a bandwidth allocation based on the average cell rate 失效
    基于平均单元速率的带宽分配的网络中的连接准入控制方法和系统

    公开(公告)号:US5583857A

    公开(公告)日:1996-12-10

    申请号:US406012

    申请日:1995-03-16

    IPC分类号: H04Q3/00 H04L12/911 H04L12/56

    摘要: A connection admission control method for allocating many calls to a transmission line while guaranteeing the quality of service such as the cell loss ratio, where an average cell rate/peak cell rate comparator judges that a call requesting admission has a variable-speed traffic property when the average cell rate Ra and the peak cell rate Rp which are declared by the user are different. A traffic class judging portion determines the traffic class to which the call belongs on the basis of the peak cell rate. A required bandwidth calculator obtains the required bandwidth for guaranteeing the quality on the basis of the sum of the average cell rate of the call requesting admission and the average cell rates of all the calls that belong to the traffic class and that are already allocated to a transmission line, and outputs the calculated bandwidth as the estimated bandwidth. An estimated bandwidth calculator for calls having a variable-speed traffic property calculates the estimated total bandwidth for all the traffic classes, and a call admission judging portion judges whether or not there is a vacant bandwidth in the transmission line which is necessary for accepting the call requesting admission with consideration of the calculated estimated total bandwidth and the physical bandwidth, and accept the call if vacant bandwidth exists, otherwise reject the call.

    摘要翻译: 一种用于在保证诸如信元丢失率的服务质量的同时分配许多呼叫到传输线路的连接许可控制方法,其中平均信元速率/峰值信元速率比较器判断呼叫请求准入具有可变速度业务属性, 由用户声明的平均单元速率Ra和峰值单元速率Rp是不同的。 业务类别判断部分基于峰值信元速率来确定呼叫所属的业务等级。 所需带宽计算器基于呼叫请求准入的平均信元速率和属于业务类别的所有呼叫的平均信元速率之和并且已经被分配给业务类别而获得用于保证质量的所需带宽 传输线路,并输出计算出的带宽作为估计带宽。 用于具有可变速度业务属性的呼叫的估计带宽计算器计算所有业务等级的估计总带宽,并且呼入许可判断部分判断传输线中是否存在接受呼叫所必需的空闲带宽 考虑到计算的估计总带宽和物理带宽请求准入,如果存在空闲带宽,则接受该呼叫,否则拒绝该呼叫。

    Boundary apparatus and method for establishing the network connection using a resource reserving function
    9.
    发明授权
    Boundary apparatus and method for establishing the network connection using a resource reserving function 失效
    使用资源预留功能建立网络连接的边界装置和方法

    公开(公告)号:US06760774B1

    公开(公告)日:2004-07-06

    申请号:US09489822

    申请日:2000-01-24

    IPC分类号: G06F1516

    摘要: A boundary apparatus on the transmission side provided on the boundary between an IP network accommodating a transmitting terminal and an ATM network separates the requests for bandwidth which are received from receiving terminals via boundary apparatuses on the reception side into a plurality of groups on the basis of a required bandwidth, establishes a point-multipoint connection between the boundary apparatus on the transmission side and each of the boundary apparatuses on the reception side for each group, and transmits the data from the transmitting terminal to each of the receiving terminals via the connection. When there is a change in the number of the requests for bandwidth due to the delivery of a new request for bandwidth or the interruption of a flow of requests, the boundary apparatus on the transmission side calculates the effective bandwidth allocation ratio of the group in which there is a change in the number of the requests for bandwidth, and if the effective bandwidth allocation ratio is not more than a preset value, the boundary apparatus separates the requests belonging to the group into two groups, and establishes a connection for each group.

    摘要翻译: 设置在容纳发送终端的IP网络与ATM网络之间的边界上的发送侧的边界装置将接收侧的边界装置的从接收端子接收到的带宽请求,基于 所需的带宽,在发送侧的边界装置和每个组的接收侧的边界装置之间建立点对多点连接,并且经由连接将数据从发送终端发送到每个接收终端。 当由于传送新的带宽请求或请求流中断而导致带宽请求数量发生变化时,发送侧的边界设备计算出其中的有效带宽分配比率,其中, 带宽请求数量有变化,如果有效带宽分配比不大于预设值,则边界设备将属于该组的请求分成两组,并建立每个组的连接。

    Feedback control method and device in ATM switching system
    10.
    发明授权
    Feedback control method and device in ATM switching system 失效
    ATM交换系统中的反馈控制方法和装置

    公开(公告)号:US06671257B1

    公开(公告)日:2003-12-30

    申请号:US09613597

    申请日:2000-07-10

    IPC分类号: H04L1256

    摘要: In an ATM switching system, an ABR service is implemented with a specific ABR control capability. A subscriber line processing device includes calculating a turnaround delay time of a cell, based on a period during which the cell doubles back at a terminal. A switch or a demultiplexer capable of detecting congestion. A rate calculator calculates a transmission rate corresponding to an output channel, and writes the calculated rate to the cell. A rate changer changes the transmission rate according to congestion. The rate changer counts the number of communicating connections. Then the number of communicating connections which should exist in a certain predetermined period is estimated based on the counted number of communicating connections. A coefficient is determined based on the estimated number of communicating connections and an actual number of communicating connections, and a next estimated value is estimated using the coefficient.

    摘要翻译: 在ATM交换系统中,ABR业务具有特定的ABR控制能力。 用户线路处理设备包括:基于小区在终端处的双倍的周期来计算小区的周转延迟时间。 能够检测拥塞的开关或解复用器。 速率计算器计算与输出通道对应的传输速率,并将计算出的速率写入单元。 速率变化器根据拥塞来改变传输速率。 速率更改器计算通信连接的数量。 然后,基于所计算的通信连接数来估计应该存在于特定预定周期内的通信连接数。 基于通信连接的估计数和通信连接的实际数量来确定系数,并且使用系数来估计下一个估计值。