{%
    local connect_exist = false
    local print_table = {}
    for _, connect in pairs(connect_table) do
        table.insert(print_table, {id = tonumber(connect.Id), src = connect.Source, dst = connect.Destination, avail = connect.Availability})
        if connect.Id == option then
            connect_exist = true
            if connect.CurrentConnectStatus == 1 then
                echo('Set serial port direction successfully.')
            else
                echo('Set serial port direction failed.')
            end
            break
        end
    end

    if not connect_exist then
        table.sort(print_table, function (a, b) return a.id < b.id end)
        echo('Usage: ipmcset -d serialdir -v <option> [-s <systemid>]\nOptions are:\n')
        for _, v in ipairs(print_table) do
            if v.avail ~= 2 then
                echo(string.format(' %-3d     Serial switch from %s to %s\n', v.id, v.src, v.dst))
            end
        end
    end
%}