Marker PDU Aligned Framing for TCP Specification
RFC 5044, “Marker PDU Aligned Framing for TCP Specification”, is a Proposed Standard document published in October 2007 by P. Culley, U. Elzur, R. Recio, S. Bailey, J. Carrier. It has since been updated by RFC 6581, RFC 7146. The canonical text is published by the RFC Editor.
Abstract
Marker PDU Aligned Framing (MPA) is designed to work as an "adaptation layer" between TCP and the Direct Data Placement protocol (DDP) as described in RFC 5041. It preserves the reliable, in-order delivery of TCP, while adding the preservation of higher-level protocol record boundaries that DDP requires. MPA is fully compliant with applicable TCP RFCs and can be utilized with existing TCP implementations. MPA also supports integrated implementations that combine TCP, MPA and DDP to reduce buffering requirements in the implementation and improve performance at the system level. [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 5044 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 5043 Stream Control Transmission Protocol Direct Data Placement Adaptation
- RFC 5045 Applicability of Remote Direct Memory Access Protocol and Direct Data Placement
- RFC 5042 Direct Data Placement Protocol / Remote Direct Memory Access Protocol Security
- RFC 5046 Internet Small Computer System Interface Extensions for Remote Direct Memory Access
- RFC 5041 Direct Data Placement over Reliable Transports
- RFC 5047 DA: Datamover Architecture for the Internet Small Computer System Interface
- RFC 5040 A Remote Direct Memory Access Protocol Specification
- RFC 5048 Internet Small Computer System Interface Corrections and Clarifications