The following proposal provides a new FIX session layer for high performance. FIX Performance Session Layer (FIXP) is a “lightweight point-to-point protocol” introduced to provide an open industry standard for high performance computing requirements currently encountered by the FIX Community. FIXP is a derived work. The origin and basis for FIXP are the FIX session layer protocols and the designed and implemented by NASDAQOMX, SoupTCP, SoupBinTCP, and UFO (UDP for Orders). Every attempt was made to keep FIXP as close to the functionality and behavior of SoupBinTCP and UFO as possible. Extensions and refactoring were performed as incremental improvements. Every attempt was made to limit the FIXP to establishing and maintaining a communication session between two end points in a reliable manner, regardless of the reliability of the underlying transport.

Issues for corrections and proposed enhancements may be entered for future versions within the FIXP GitHub project:
https://github.com/FIXTradingCommunity/fixp-specification

The proposed technical standard for FIXP is following the technical standards review process described in the document found here.

Version 1.1 Draft Standard

Icon

FIXP Session Layer Technical Proposal Version 1.1 - Draft Standard 401.43 KB 514 downloads May 8, 2019

FIXP V1.1 Draft Standard ...
Icon

FIXP Session Layer Technical Standard Version 1.1 - Draft Standard 1.53 MB 385 downloads May 8, 2019

FIXP V1.1 Draft Standard - Technical Standard ...

    Version 1.1 Release Candidate 1

    Icon

    FIXP Session Layer Technical Proposal Version 1.1 - Release Candidate 1 292.25 KB 56 downloads January 9, 2019

    Technical proposal submission for Version 1.1 Release Candidate 1 of FIXP Session Layer Specification. ...
    Icon

    FIXP Session Layer Technical Standard Version 1.1 - Release Candidate 1 1.43 MB 63 downloads January 9, 2019

    Technical Specification document for FIXP Session Layer Version 1.1 Release Candidate 1 ...

      Version 1.0 Draft Standard

      Icon

      FIXP Session Layer Specification - Draft Standard 1.14 MB 329 downloads August 17, 2018

      Technical Specification document for FIX Performance Session Layer (FIXP). ...

        Version 1.0 Release Candidate 4

        Icon

        FIXP Session Layer Release Candidate 4 - Technical Proposal 511.03 KB 104 downloads May 3, 2018

        Technical standard submission for Release Candidate 4 of FIXP Session Layer Specification. ...
        Icon

        FIXP Session Layer Specification - Release Candidate 4 522.39 KB 105 downloads May 3, 2018

        Release Candidate 4 of FIX Performance Session Layer Specification. ...

          Version 1.0 Release Candidate 3

          Icon

          FIXP Session Layer Specification- Release Candidate 3 1.61 MB 62 downloads July 28, 2016

          Release Candidate 3 of FIX Performance Session Layer Specification. ...
          Icon

          FIXP Session Layer Release Candidate 3 - Technical Proposal 536.26 KB 74 downloads July 28, 2016

          Technical Standard proposal submission for Release Candidate 3 of FIXP Session Layer Specification. ...

            Version 1.0 Release Candidate 2

            Icon

            FIXP Session Layer Release Candidate 2 - Technical Proposal 414.67 KB 12 downloads March 17, 2017

            Technical Standard proposal submission for Release Candidate 2 of FIXP Session Layer Specification. ...
            Icon

            FIXP Session Layer Specification - Release Candidate 2 1.11 MB 12 downloads March 17, 2017

            Release Candidate 2 of FIX Performance Session Layer Specification. ...

              Version 1.0 Release Candidate 1

              Icon

              FIXP Session Layer Specification - Release Candidate 1 1.00 MB 17 downloads March 17, 2017

              Release Candidate 1 of FIX Performance Session Layer Specification. ...