The document is well written and clear to follow. I have not found any major issue. I have some recommendations/questions for the authors: * Page 3: RFC 7919 --> RFC 7819. * It would be good to have a section (maybe an annex) in which authors describe the differences (if any) found in the experiments performed with IPv4 vs IPv6. Since IPv6 does not do broadcast, there may be important differences to highlight. * While I understand that the authors do not provide details about the apps analyzed, it would be good to include more information for example about the distribution of the frequency of broadcast/multicast messages found in the experiments. And it would also be nice (though I don't know if this would be feasible) to provide some recommended values for the frequencies to use (an app developer could benefit from some additional guidelines). * Page 5: "In that respect broadcast can be [...]" --> "In that respect, multicast can be [...]" or "In that respect, broadcast/multicast can be [...]". Note that the examples used are IPv6, so "broadcast" alone would not apply.