用于1.2 Gbps共享缓冲ATM交换机的单芯片控制器

N. Mizukoshi, R. Fan, H. Suzuki, Y. Tomimitsu, N. Sato, H. Ishida, M. Ichihara, K. Kirino, M. Tawada, H. Nagano, M. Shinohara
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引用次数: 1

摘要

首次研制了具有1.2 Gbps交换容量的共享缓冲ATM交换机的单片机控制器。使用外部标准sram可以实现低成本的单元缓冲区、标头转换表和控制存储器。该芯片可以支持各种线路接口速度与标准乌托邦2级。通过一种新的缓冲区控制方案“重新排队”,实现了高吞吐量的组播交换能力。该芯片还支持ATM论坛标准化的多种服务类别。最后对所研制芯片的性能进行了评价。
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A single-chip controller for 1.2 Gbps shared buffer ATM switches
A single chip controller for the shared buffer ATM switch with 1.2 Gbps switching capacity has been developed for the first time. Using external standard SRAMs enables low cost implementation of cell buffers, header translation tables and control memories. The chip can support various line interface speeds with standard UTOPIA level 2. High throughput multicast switching capability is achieved by novel buffer control scheme, "re-queuing". The chip also supports multiple service classes standardized by the ATM forum. The performance of the developed chip is also evaluated.
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