Internet traffic loads are increasing. Sustaining packet switching throughput of a core node
will be difficult. A major reason for this is power consumption and packaging volume. As long as we
use only current semiconductor technology, the switching capacity will be limited. Rapid single flux
quantum (RSFQ) superconducting technology can overcome such difficulties because of high-speed
operation and low-power consumption characteristics. A superconducting wiring also enables
high-speed inter-chip communication. We report on progress on packet switch circuit
implementation and cryo-cooled packaging for a RSFQ packet switch system. In addition, we discuss
a possible packet switch architecture over 100 Tbps that uses RSFQ technology.
Congestion-Aware Multistage Packet-Switch Architecture for Data Center Networks
