Library /sys$common/syshlp/nclhelp.hlb set, llc2, sap, link, acknowledge_timer  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Default: 1000          Value: 1-60000

    Specifies the time, in milliseconds, the link waits for an
    acknowledgment before initiating recovery action.

    The granularity of this timer is 10 milliseconds. Values that are
    not multiples of 10 are rounded up.