Re: [mqtt-comment] $SYS topics on 2nd level

Tim

Thank you for the comments.

I'm very reticient about making a change like this to MQTT 3.11 at this point. Perhaps we could carry thid forward as an idea for the next version.

Raph

On 17 Mar 2014 20:40, "Tim Kellogg" <> wrote:

Hi,

The 3.1.1 spec says that “#” subscriptions should not receive messages from topics starting with “$” as the first character of the topic.  At 2lemetry, our broker uses $SYS topics the same as Mosquitto does, except that “$SYS” is on the 2nd level of the topic. For instance, “com.example/$SYS” gives metadata for topics under “com.example/#”.

I think it would be appropriate to make the clause more generic, to include 2nd level $SYS topics.

Tim Kellogg

Sr. Software Engineer, Protocols

2lemetry

605-593-7099

@kellogh