The IESG has approved the following document: - 'Stream Control Transmission Protocol (SCTP) Direct Data Placement (DDP) Adaptation ' <draft-ietf-rddp-sctp-07.txt> as a Proposed Standard This document is the product of the Remote Direct Data Placement Working Group. The IESG contact persons are Lars Eggert and Magnus Westerlund. A URL of this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-rddp-sctp-07.txt Technical Summary This document describes a method to adapt Direct Data Placement (DDP) and Remote Direct Memory Access (RDMA) to Stream Control Transmission Protocol (SCTP) RFC2960 using a generic description found in the RDMA and DDP specifications. This adaption provides a method for two peers to know that each side is performing DDP or RDMA thus enabling hardware acceleration if available. Some implementations may include this adaptation layer within their SCTP implementations to obtain maximum performance but the behavior of SCTP will be unaffected. In order to accomplish this we specify the use of the new adaptation layer indication as defined in the SCTP ADDIP specification. Working Group Summary In contrast to the lengthy discussion of how to adapt rddp to TCP, there has been very little controversy over or dissent from this draft's approach for adapting rddp to SCTP. Protocol Quality The protocol has been reviewed for the rddp WG by David L. Black. Randy Stewart, an SCTP expert, is a co-author of this draft. David Black (Black_David@emc.com) has acted as PROTO Document Shepherd. Eric Gray (Eric.Gray@marconi.com) has reviewed this document for Gen-ART. Lars Eggert (eggert@netlab.nec.de has reviewed this document for the IESG. RFC Editor Note OLD: The DDP Segment Chunk serves the same purpose as the [I-D.ietf-rddp-mpa] Upper Layer NEW: The DDP Segment Chunk serves the same purpose as the MPA [I-D.ietf-rddp-mpa] Upper Layer ^^^ Add the following paragraph to the end of Section 13 Security Considerations: Additional requirements apply to security for RDDP over SCTP, due to the use of SCTP as the transport protocol. An implementation of IPsec for RDDP over SCTP: a) MUST support IPsec functionality for SCTP equivalent to the IPsec functionality for TCP that is required by RFC 3723, b) SHOULD support the same level of IPsec functionality for SCTP and TCP unless there is no support for TCP, and c) MUST support at least the level of protocol and port selector functionality for SCTP that is supported for TCP. _______________________________________________ IETF-Announce@ietf.org https://www1.ietf.org/mailman/listinfo/ietf-announce
