Maximum buffer size is an optional argument that specifies the
    maximum number of octets to be used for event processing of this
    stream. The current value is displayed in the buffer size status
    attribute. You can specify a size smaller than the
    implementation's default, provided it is still sufficient to hold
    the events lost event. It is recommended that you use the default
    buffer size, which is 16384.

    Example:

    create event dispatcher outbound stream local_stream -
        maximum buffer size 16384