Abstract
Input queuing has advantages for building ultra-broadband
ATM switches with the throughput beyond 100 Gbps because it imposes
minimal memory bandwidth requirements.
Using a novel Multi-Tag-Queue (MTQ) input module
and a novel Matrix-Unit-Cell-Scheduling (MUCS) module,
our input queue-based ATM switch avoids
head-of-line blocking and provides almost 100% utilization.
In a 32-port configuration, the switch can deliver an
aggregate throughput of 128 Gb/s.