We took a public domain implementation of the TCP/IP protocol stack and ported into user space. The user space implementation was then optimized by a one-to-one mapping of transport connections onto ATM connections and a packet filter. We describe the user space implementation and compare its latency and throughput performance with the existing kernel implementation.
Demultiplexing on the ATM adapter : experiments with internet protocols in user space
Journal of High speed networks, special issue : Hipparch, Volume 5, n°2, 1996
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