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Abstract : |
The Computer Networks Laboratory at the University of Virginia has implemented the SAFENET lightweight protocol suite on the Navy's Desktop Tactical Computer (DTC-2). The software includes the Xpress Transfer Protocol (XTP), a new transport and network layer protocol to support high-throughput, low-latency, priority-sensitive communications. One of our research questions was whether to embed XTP in the DTC-2's UNIX kernel or run XTP on an attached processor on the machine's VMEbus. We implemented both strategies and the attached processor approach proved to have somewhat higher performance. Our conclusions identify both the advantages and performance concerns inherent in off-host protocol execution., |
