Re: Which MQTT control packets can use if Request Problem Information is 0 ?

Hi Richard,

I'm not sure that you are right person to send follow up mail.
I reported the following issue but not responding, so far.
Could you check this?

Thanks,
Takatoshi

On Tue, Apr 14, 2020 at 11:36 AM Takatoshi Kondo <> wrote:
>
> Hi,
>
> I have a comment about the following part of MQTT Version 5.0 document:
>
> https://docs.oasis-open.org/mqtt/mqtt/v5.0/os/mqtt-v5.0-os.html#_Toc3901053
>
> > If the value of Request Problem Information is 0, the Server MAY return a Reason String or User Properties on a CONNACK or DISCONNECT packet, but MUST NOT send a Reason String or User Properties on any packet other than PUBLISH, CONNACK, or DISCONNECT [MQTT-3.1.2-29]. If the value is 0 and the Client receives a Reason String or User Properties in a packet other than PUBLISH, CONNACK, or DISCONNECT, it uses a DISCONNECT packet with Reason Code 0x82 (Protocol Error) as described in section 4.13 Handling errors.
>
>
> At first, the spec refer to CONNACK and DISCONNECT. But from the
> middle, PUBLISH is mixed.
>
> Which MQTT control packets can use Reason String and/or User
> Properties if Request Problem Information is 0 ?
>
> Thanks,
> Takatoshi