Using the NCP Emulator, you can manage remote Phase IV nodes
    with the "tell" and "set executor node" commands.  Before you
    invoke the NCP Emulator, make sure the NET$MOP process is
    running.  To invoke the NCP Emulator, enter:

    $ run sys$system:ncp

    The following example modifies the cost on circuit sva-0 on
    boston, a remote Phase IV node:

    NCP> tell boston"bostonaccount bostonpwd" -
    _NCP> set circuit sva-0 cost 4

    The NCP Emulator was designed to facilitate software
    installations on DECnet Phase V systems; it was not intended
    as a replacement for NCL.  For more information on the NCP
    Emulator and the limited set of NCP commands it supports,
    refer to the Network Management manual.