[OASIS Issue Tracker] (MQTT-555) Clarification of broker behaviour when client REGISTERs a PREDEFINED topic

[OASIS Issues Tracker <workgroup_mailer@lists.oasis-open.org>]

    [ https://issues.oasis-open.org/browse/MQTT-555?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=82031#comment-82031 ] 

Simon Johnson commented on MQTT-555:
------------------------------------

Agreed and applied to WD 22.Â

> Clarification of broker behaviour when client REGISTERs a PREDEFINED topic
> --------------------------------------------------------------------------
>
>                 Key: MQTT-555
>                 URL: https://issues.oasis-open.org/browse/MQTT-555
>             Project: OASIS Message Queuing Telemetry Transport (MQTT) TC
>          Issue Type: Improvement
>          Components: MQTT-SN
>    Affects Versions: MQTT-SN-1.2
>            Reporter: Simon Johnson [X]
>            Assignee: Ian Craggs
>            Priority: Minor
>              Labels: Implementation-notes
>
> If a client issues a âREGISTER âagainst the topic that happens to also be predefined, should  this be allowed? If so, does this yield a normalId in the REGACK, in which case the broker must use an order of precedence when selecting the topic id scheme to use in deliveries to this client.



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