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

    set  [node node-id] osak disconnect timer integer

    Example:

    set osak disconnect timer 30

    Disconnect timer is the length of time in seconds that the
    OSAK software waits when it expects the remote peer to disconnect
    a transport connection. If the timer expires and the remote peer
    has not disconnected the connection, the OSAK software
    disconnects the connection.  The default disconnect timer is 30
    seconds.