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

    Default: False         Value: True or false

    Indicates whether the network Routing layer's error report
    facility should be used when performing connection establishment.
    If set to true, this may result in faster detection of an
    unreachable node at the time of connection establishment. This
    characteristic should not be set to true on an end system that
    is either dual-railed or connected to a network that has a high
    probability of duplication. This is valid only if network service
    equals clns.

    set  [node node-id] osi transport template template-id -
         use clns error reports boolean

    Example:

    set osi trans temp osit$loop_clns use clns err rep true