Thanks for the clarification. I'm not aware of any current or planned effort to implement MQTT-SN.
Justin On Mon, Jun 14, 2021 at 6:36 AM Mark Raynsford <list+org.apache.activ...@io7m.com.invalid> wrote: > On 2021-06-13T16:24:49 -0500 > Justin Bertram <jbert...@apache.org> wrote: > > > I didn't realize that UDP was suitable for MQTT. Section 4.2 of both the > > 3.1.1 [1] and 5.0 [2] MQTT specifications say: > > > > > The MQTT protocol requires an underlying transport that provides an > > ordered, lossless, stream of bytes from the Client to Server and Server > to > > Client. > > > ... > > > Connectionless network transports such as User Datagram Protocol > (UDP) > > are not suitable on their own because they might lose or reorder data. > > > > Can you elaborate on the use-case here? > > Ah, sorry, my mistake - I keep referring to MQTT-SN as MQTT. It is > essentialy the same protocol, but slightly adjusted for use in > unreliable wireless networks. It can work over UDP, but it can also > work over protocols such as Bluetooth. > > This is the current spec: > > > https://www.oasis-open.org/committees/download.php/66091/MQTT-SN_spec_v1.2.pdf > > -- > Mark Raynsford | https://www.io7m.com > >
