/COMPRESSION
       /NOCOMPRESSION

    Enables or disables sending compressed data by the specified VCs.
    The default is /NOCOMPRESSION.

    Usage notes:

    o  Compression is used only if the partner node has a PEdriver
       version that supports it.

    o  You can also enable the use of compression with the NISCS_
       PORT_SERV system parameter. For more information about NISCS_
       PORT_SERV, see the System Parameter appendix in this manual.

    o  The /NOCOMPRESSION qualifier does not override compression
       enabled by setting bit 2 of NISCS_PORT_SERV.