公开(公告)号：US07065052B1

公开(公告)日：2006-06-20

申请号：US09261197

申请日：1999-03-03

申请人： Brian E. McBride

发明人： Brian E. McBride

IPC分类号： H04L1/00

CPC分类号： H04L12/5601 ,  H04L43/50 ,  H04L49/203 ,  H04L2012/5628 ,  H04L2012/5672

摘要： The digital data stream (e.g. ATM cell stream) replicating device features an input port for receiving a continuous digital data stream at an input transmission rate; a broadcast mechanism for replicating the input digital data stream N times; N output ports for transmitting each such replicated digital data stream through a separate output port at an output transmission rate at least equal to the input transmission rate; and a delay mechanism for introducing a relative delay for each said output digital data stream with respect to the input digital data stream such that the output streams are identical but out of phase with one another. Use of such a device enables a multi-port digital data communications device such as an ATM network switch to be tested using only one (expensive) performance test generator while still respecting the statistical multiplexing advantages of the multi-port digital data communications device.

摘要翻译： 数字数据流（例如ATM信元流）复制装置具有用于以输入传输速率接收连续数字数据流的输入端口; 用于复制输入数字数据流N次的广播机制; N个输出端口，用于以至少等于输入传输速率的输出传输速率通过单独的输出端口发送每个这样的复制数字数据流; 以及延迟机构，用于相对于输入数字数据流引入每个所述输出数字数据流的相对延迟，使得输出流彼此相同但不同相。 使用这样的设备使得能够仅使用一个（昂贵的）性能测试发生器来测试诸如ATM网络交换机之类的多端口数字数据通信设备，同时仍然遵循多端口数字数据通信设备的统计复用优点。

公开(公告)号：US06671278B1

公开(公告)日：2003-12-30

申请号：US09261196

申请日：1999-03-03

申请人： Brian E. McBride ,  Jean Belanger

发明人： Brian E. McBride ,  Jean Belanger

IPC分类号： H04L1256

CPC分类号： H04L43/50

摘要： A reference load model generator for testing ATM communication devices. The generator comprises an interface for specifying a frame size (FS), an inter-frame gap (IFG) and an inter-cell gap (ICG) for modelling frame sources, and generates source ATM cell streams having the specified FS, IFG and ICG of the corresponding frame source. The generator also includes a multiplexer which receives the source cell streams and generates a single output cell stream.

摘要翻译： 用于测试ATM通信设备的参考负载模型发生器。 发生器包括用于指定帧大小（FS），帧间间隙（IFG）和用于对帧源建模的小区间间隙（ICG）的接口，并且生成具有指定的FS，IFG和ICG的源ATM信元流 的相应帧源。 发生器还包括多路复用器，其接收源单元流并生成单个输出单元流。