Staged Circuit Switching for Network Computers.
STATE UNIV OF NEW YORK AT STONY BROOK DEPT OF COMPUTER SCIENCE
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Staged circuit switching SCS is a message-switching technique that combines a new protocol with new communication hardware. Protocol and hardware are designed specifically for networks that are intended to function as integrated, general-purpose MIMD machines, i.e. for network computers. The SCS protocol is a form of circuit-switching that degrades automatically into packet-switching when unavailable output lines make further extension of a partial circuit impossible. The SCS hardware uses a front-end crossbar switch to multiplex some small number of communication channels among all of a given nodes incident links. Together, hardware and protocol represent an attempt to convert spare bandwidth into lower network delays. They also allow experimentation with networks that reconfigure themselves dynamically in response to measured traffic. We compare SCS to packet-switching, circuit switching and the virtual cut-through protocol of Kermani and Kleinrock, and discuss an SCS implementation designed for the SBN network computer. Author
- Electrical and Electronic Equipment
- Non-Radio Communications