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 Release Candidate 1

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FIXP Session Layer Technical Proposal Version 1.1 - Release Candidate 1 292.25 KB 24 downloads

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

Create date: January 9, 2019
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FIXP Session Layer Technical Standard Version 1.1 - Release Candidate 1 1.43 MB 18 downloads

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

Create date: January 9, 2019

    Version 1.0 Draft Standard

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    FIXP Session Layer Specification - Draft Standard 1.14 MB 152 downloads

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

    Create date: August 17, 2018

      Version 1.0 Release Candidate 4

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      FIXP Session Layer Release Candidate 4 - Technical Proposal 511.03 KB 64 downloads

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

      Create date: May 3, 2018
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      FIXP Session Layer Specification - Release Candidate 4 522.39 KB 58 downloads

      Release Candidate 4 of FIX Performance Session Layer Specification.

      Create date: May 3, 2018

        Version 1.0 Release Candidate 3

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        FIXP Session Layer Release Candidate 3 - Technical Proposal 536.26 KB 64 downloads

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

        Create date: July 28, 2016
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        FIXP Session Layer Specification- Release Candidate 3 1.61 MB 52 downloads

        Release Candidate 3 of FIX Performance Session Layer Specification.

        Create date: July 28, 2016

          Version 1.0 Release Candidate 2

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          FIXP Session Layer Release Candidate 2 - Technical Proposal 414.67 KB 4 downloads

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

          Create date: March 17, 2017
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          FIXP Session Layer Specification - Release Candidate 2 1.11 MB 5 downloads

          Release Candidate 2 of FIX Performance Session Layer Specification.

          Create date: March 17, 2017

            Version 1.0 Release Candidate 1

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            FIXP Session Layer Specification - Release Candidate 1 1.00 MB 8 downloads

            Release Candidate 1 of FIX Performance Session Layer Specification.

            Create date: March 17, 2017