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This is the mailing list of the former IETF rddp Working Group, which has been closed. The original description of this WG's activity was the following:
The purpose of the IETF rddp WG is to enable Remote Direct Data Placement (rddp) capabilities with IP transport protocols, in particular with SCTP. RDDP capabilities refer to the ability to place data directly from the NIC into application buffers, without intensive CPU usage. This strategy avoids the costs of data copying and enables using IP as a method for high speed buffer to buffer transfer, allowing IP to replace special purpose networks currently in use. Remote Direct Memory Access (RDMA) is an example of this concept.
Conceptually, RDDP functionality can be viewed as consisting of two layers. First the direct data placement capability, which is accomplished through a tag and a lookup table on the NIC. Above this core functionality, an RDDP control protocol is needed to specify how the direct data placement can be used, for example READ and WRITE
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