We present a new integrated approach for multicasting in ATM switches which takes advantage of both the broadcast approach and copy approach. The multicast cells are first separated from the unicast cells. Then a multicast cell is routed using either the broadcast approach or the copy approach, depending on its number of destinations. Cell replication is done by fan-out without using a copy network. This approach allows fast multicast call set-up, fast additions and deletions of the destinations from an on-going multicast call, supports up to N destinations per call in an N/spl times/N switch. It implements multicasting with a minimum amount of memory and, requires a minimum increase in the switch complexity. The paper illustrates the implementation of this technique on a 64/spl times/64 three-router sunshine switch architecture and discusses how it can be implemented on other switch fabric configurations.
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机译：我们提出了一种在ATM交换机中进行多播的新的集成方法，该方法同时利用了广播方法和复制方法。首先将多播小区与单播小区分开。然后，根据广播目标的数量，使用广播方法或复制方法对多播小区进行路由。单元复制是通过扇出完成的，无需使用复制网络。这种方法允许快速建立多播呼叫，从正在进行的多播呼叫中快速添加和删除目的地，在N / spl次/ N交换机中，每个呼叫最多支持N个目的地。它以最少的内存量实现多播，并且要求交换机的复杂性增加到最小。本文说明了此技术在64 / spl times / 64三路由器日光交换器体系结构上的实现，并讨论了如何在其他交换矩阵配置上实现该技术。
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