公开(公告)号：US5485456A

公开(公告)日：1996-01-16

申请号：US326972

申请日：1994-10-21

申请人： Ronen Shtayer ,  Roni Eliyahu ,  Yehuda Shvager ,  Yaron Ben-Arie

发明人： Ronen Shtayer ,  Roni Eliyahu ,  Yehuda Shvager ,  Yaron Ben-Arie

IPC分类号： H04J3/24 ,  H04L12/56 ,  H04Q11/04

CPC分类号： H04J3/247 ,  H04Q11/0478 ,  H04L2012/5616 ,  H04L2012/5672

摘要： An asynchronous transfer mode (ATM) system has a plurality of physical layers (24, 50, 52, and 26) coupled to one ATM layer (12) for communicating ATM data cells. In order to allow bi-directional communication, both the receive interface and the transmit interface of FIGS. 14 and 15 are coupled between the ATM layer and each physical (PHY) layer in the plurality of physical layers. In order to identify which physical layer of the plurality of physical layers is to either receive or transmit a data cell, a physical layer ID byte is transmitted along with the UTOPIA protocol multi-byte ATM data cell to address one physical layer in the plurality of physical layers.

摘要翻译： 异步传输模式（ATM）系统具有耦合到一个ATM层（12）的多个物理层（24,50,52和26），用于传送ATM数据单元。 为了允许双向通信，图1和图2的接收接口和发送接口都是可以的。 14和15耦合在多个物理层中的ATM层和每个物理（PHY）层之间。 为了识别多个物理层的哪个物理层要接收或发送数据单元，物理层ID字节与UTOPIA协议多字节ATM数据单元一起发送以寻址多个物理层中的一个物理层 物理层。

公开(公告)号：US5892755A

公开(公告)日：1999-04-06

申请号：US768013

申请日：1996-12-13

申请人： Yaron Ben-Arie ,  Roni Eliyahu ,  Ronen Shtayer ,  Yehuda Shvager

发明人： Yaron Ben-Arie ,  Roni Eliyahu ,  Ronen Shtayer ,  Yehuda Shvager

IPC分类号： H04Q3/00 ,  H04L12/56 ,  H04Q11/04

CPC分类号： H04L49/3081 ,  H04L49/30 ,  H04Q11/0478 ,  H04L2012/5679 ,  H04L2012/5681

摘要： A transfer layer of an ATM type used between a switch (216) and a number N of communication channels (218). Each communication channel (218) has second storage arrangement B.sub.0, . . . , B.sub.N-1 for storing cell queues having a length of up to P cells each, one of the second storage arrangements being in a busy condition if a minimum number M of cells is stored therein, where M is lesser of equal P. Each communication channel is assigned to one of the switch queues. The transfer layer (217) has third storage arrangement T for storage of a cell queue having a length of up to L cells. Furthermore the transfer layer (217) selectively disables the input of a cell from one of the switch queues into the third storage arrangement if the second storage arrangement is in a busy condition.

摘要翻译： 在交换机（216）和数目为N个通信信道（218）之间使用的ATM类型的传送层。 每个通信信道（218）具有第二存储布置B0，。 。 。 ，BN-1，用于存储每个具有多达P个单元的长度的单元队列，如果存储有最小数量M的单元，则第二存储装置中的一个处于忙状态，其中M较小的相等P。每个通信 通道分配给其中一个交换机队列。 转移层（217）具有第三存储装置T，用于存储具有长达L个小区的长度的小区队列。 此外，如果第二存储装置处于忙状态，则转移层（217）有选择地将小区的输入从交换队列之一进入第三存储装置。

公开(公告)号：US5717858A

公开(公告)日：1998-02-10

申请号：US324192

申请日：1994-10-17

申请人： Ronen Shtayer ,  Roni Eliyahu ,  Aviel Livay

发明人： Ronen Shtayer ,  Roni Eliyahu ,  Aviel Livay

IPC分类号： H04L12/56 ,  H04Q11/04 ,  G06F13/00

CPC分类号： H04Q11/0478 ,  H04L2012/5636 ,  H04L2012/5651

摘要： A method (FIGS. 5-6) and a structure (FIGS. 3-4) are taught herein for prioritizing and transmitting forward monitoring cells (FMCs) for performance monitoring in an asynchronous transfer mode (ATM) system. An ATM system may have multiple physical lines which have many virtual paths which have multiple virtual connections. These paths/connections may be performance monitored by transmitting an FMC each time N ATM data cells are received for the connection/path (wherein N is number which may be different for each connection/path). The number of data cells are stored via a counter for each connection/path being monitored. Once N ATM cells are received on a given connection/path, an FMC descriptor is queued which indicates that the FMC cell for the given connection/path must be transmitted before receipt of N/2 subsequent cells received by the given connection/path. A priority (which is a function of one of the counters) is used to ensure that the N/2 requirement is satisfied.

摘要翻译： 本文教导了一种方法（图5-6）和结构（图3-4），用于在异步传输模式（ATM）系统中优先化和发送用于性能监视的前向监控单元（FMC）。 ATM系统可以具有多条具有多个虚拟连接的虚拟路径的物理线路。 每当接收到连接/路径的N个ATM数据单元（其中N是对于每个连接/路径可能不同的数量）时，可以通过发送FMC来性能来监视这些路径/连接。 每个被监视的连接/路径通过计数器存储数据单元的数量。 一旦在给定的连接/路径上接收到N个ATM信元，则FMC描述符被排队，其指示在接收到由给定连接/路径接收的N / 2个后续信元之前，给定连接/路径的FMC信元必须被发送。 优先级（其中一个计数器的功能）用于确保满足N / 2要求。

公开(公告)号：US5414701A

公开(公告)日：1995-05-09

申请号：US279140

申请日：1994-07-22

申请人： Ronen Shtayer ,  Roni Eliyahu ,  Aviel Livay

发明人： Ronen Shtayer ,  Roni Eliyahu ,  Aviel Livay

IPC分类号： H04L12/56 ,  H04Q11/04

CPC分类号： H04L49/309 ,  H04L49/256 ,  H04L49/3009 ,  H04L49/3081 ,  H04Q11/0478 ,  H04L2012/5615 ,  H04L2012/5619

摘要： An asynchronous transfer mode (ATM) address compression method uses a PHY ID (14). The PHY ID (14) is provided before the transmission of a 53-byte ATM data cell (12, 16, and 18). The PHY ID (14) (also referred to as a link) is used to access a link table (20). The link table (20) contains address compression mode information which allows for many address compression modes and an enable bit, an address pointer, and a mask value which are used to both reduce ATM addressing bits and identify a virtual path table/entry in the ATM system. In some address compression modes, the identified virtual path contains the ingress connection identifier (ICI) which identifies a physical data routing path in the ATM system. In other address compression modes, further address compression of virtual channel identifiers is required beyond the virtual path tables in order to identify a virtual channel table/entry which then contains the ICI.

摘要翻译： 异步传输模式（ATM）地址压缩方法使用PHY ID（14）。 在发送53字节的ATM数据单元（12,16和18）之前提供PHY ID（14）。 PHY ID（14）（也称为链路）用于访问链接表（20）。 链路表（20）包含地址压缩模式信息，其允许许多地址压缩模式以及使能位，地址指针和掩码值，它们都用于减少ATM寻址比特并且识别虚拟路径表/条目 ATM系统。 在一些地址压缩模式中，所识别的虚拟路径包含标识ATM系统中的物理数据路由路径的入口连接标识符（ICI）。 在其他地址压缩模式中，虚拟通道标识符的进一步地址压缩需要超出虚拟路径表，以便识别然后包含ICI的虚拟通道表/条目。

公开(公告)号：US5923658A

公开(公告)日：1999-07-13

申请号：US856835

申请日：1997-05-15

申请人： Ronen Shtayer ,  Ron Eliyahu

发明人： Ronen Shtayer ,  Ron Eliyahu

IPC分类号： H04Q3/00 ,  H04L12/56 ,  H04Q11/04

CPC分类号： H04L49/3081 ,  H04Q11/0478 ,  H04L2012/5625

摘要： An ATM line card is provided wherein a microprocessor bus is selectively coupled to a memory bus during maintenance time intervals. This allows direct transfer of connection memory data to the microprocessor system of the line card and thus to the RAM of the system. After the transfer is accomplished the busses are decoupled again so that further maintenance work of the connection memory and the transferred data can be done independently. If the access to the connection memory is due to a destructive read operation the corresponding memory locations in the connection memory are reset simultaneous to the transfer of the data which are read out from the DMA of the microprocessor system to the RAM. This results in a dramatic reduction of the time required for maintenance of the ATM system.

摘要翻译： 提供了ATM线卡，其中在维护时间间隔期间，微处理器总线选择性地耦合到存储器总线。 这允许将连接存储器数据直接传送到线路卡的微处理器系统，从而直接传送到系统的RAM。 传输完成后，总线再次去耦，从而可以独立完成连接存储器和传输数据的进一步维护工作。 如果对连接存储器的访问是由于破坏性读取操作，则连接存储器中的相应存储器位置与从微处理器系统的DMA读取到RAM的数据的传送同时复位。 这导致维护ATM系统所需的时间大大减少。

公开(公告)号：US5491691A

公开(公告)日：1996-02-13

申请号：US291225

申请日：1994-08-16

申请人： Ronen Shtayer ,  Naveh Alon ,  Joffe Alexander

发明人： Ronen Shtayer ,  Naveh Alon ,  Joffe Alexander

IPC分类号： H04J3/24 ,  H04L12/56 ,  H04Q11/04 ,  H04L12/433

CPC分类号： H04Q11/0478 ,  H04J3/247 ,  H04L2012/5616 ,  H04L2012/5672 ,  H04L2012/5679 ,  H04L2012/5681

摘要： A method for scheduling asynchronous transfer mode (ATM) data cells for transmission in an ATM system uses a plurality of queues. The plurality of queues are separated into waiting queues of a lower priority and transmit queues of a higher priority. ATM tokens which identify one active channel a piece are positioned in the queues and rotated/shifted to new positions over time. As time progresses, ATM tokens are shifted/rotated from waiting queues of a lower priority to transfer queues of a higher priority wherein the tokens (and therefore specific ATM channels) are selected and ATM data cell(s) are transmitted in response to the selection. This queued/shifted selection process ensures that bandwidth requirements are adhered to in the ATM system. The selected tokens are eventually (after all needed ATM data cell(s) are transmitted for a single selection) re-scheduled to a queue of lower priority.

摘要翻译： 用于调度在ATM系统中传输的异步传输模式（ATM）数据单元的方法使用多个队列。 多个队列被分成较低优先级的等待队列，并且发送更高优先级的队列。 标识一个活动通道的ATM令牌，其中一个定位在队列中并且随着时间的推移而旋转/移动到新的位置。 随着时间的推移，ATM令牌被从较低优先级的等待队列移位/转移到更高优先级的传送队列，其中令牌（并且因此特定的ATM信道）被选择并响应于选择发送ATM数据信元 。 这种排队/移位选择过程确保在ATM系统中遵守带宽需求。 所选择的令牌最终（在所有需要的ATM数据单元被发送用于单个选择之后）重新调度到较低优先级的队列。