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

    Default: 5             Value: 0-255

    Relative weighting to apply to the current estimate and to a new
    sample when estimating round-trip delay. This attribute works
    with protocol class 4 only.

    set [node node-id] osi transport delay weight integer

    Example:

    set osi transport delay weight 5