Library /sys$common/syshlp/nclhelp.hlb set, x25_protocol, dte, maximum_clear_attempts  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Default: Supplied by   Value: Bounded by profile
    profile

    Number of times that sending a clear packet can be attempted on
    a virtual circuit on the DTE. The value 1 indicates that a clear
    packet is sent only once; that is, there are no retries.