Library /sys$common/syshlp/nclhelp.hlb set, ddcmp (OpenVMS VAX), link, receive_buffers  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Default: 4             Value: 1-255

    Specifies the number of receive buffers reserved for the link.
    You can only increase the characteristic value.

    set [node node-id] ddcmp link link-name receive buffers integer

    Example:

    set ddcmp link ddcmp-0 receive buffers 8