RFC 4297

Remote Direct Memory Access (RDMA) over IP Problem Statement, December 2005

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A. Romanow
J. Mogul
T. Talpey
S. Bailey
rddp (tsv)

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DOI:  https://doi.org/10.17487/RFC4297

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Overhead due to the movement of user data in the end-system network I/O processing path at high speeds is significant, and has limited the use of Internet protocols in interconnection networks, and the Internet itself -- especially where high bandwidth, low latency, and/or low overhead are required by the hosted application.

This document examines this overhead, and addresses an architectural, IP-based "copy avoidance" solution for its elimination, by enabling Remote Direct Memory Access (RDMA). This memo provides information for the Internet community.

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.

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