Queue pair IP: A hybrid architecture for system area networks

  • Buonadonna P
  • Culler D
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Abstract

We propose a SAN architecture called Queue Pair IP (QPIP) that
combines the interface from industry proposals for low overhead, high
bandwidth networks, e.g. Infiniband, with the well established
inter-network protocol suite. We evaluate how effectively the queue pair
abstraction enables inter-network protocol offload We develop a
prototype QPIP system that implements basic queue pair operations over a
subset of TCP, UDP and IPv6 protocols using a programmable network
adapter. We assess this prototype in terms of basic application
performance, underlying processing costs, and a network storage
application. With modest hardware support, QPIP can perform as well as
traditional inter-network protocol implementations at a fraction of the
host CPU overhead. With hardware support equivalent to Infiniband, QPIP
would achieve similar performance targets

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Authors

  • Philip Buonadonna

  • David Culler

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