[OASIS Issue Tracker] (MQTT-573) Subscription Options

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

     [ https://issues.oasis-open.org/browse/MQTT-573?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ian Craggs updated MQTT-573:
----------------------------
    Assignee: Ian Craggs

> Subscription Options
> --------------------
>
>                 Key: MQTT-573
>                 URL: https://issues.oasis-open.org/browse/MQTT-573
>             Project: OASIS Message Queuing Telemetry Transport (MQTT) TC
>          Issue Type: Improvement
>          Components: MQTT-SN
>    Affects Versions: MQTT-SN-1.2
>            Reporter: Ian Craggs
>            Assignee: Ian Craggs
>            Priority: Major
>
> Subscription options were added to MQTT 5.0.  These are generally well received.  Similar capabilities should be added to MQTT-SN especially as they can result in more efficient operations.
> Subscribe flags field:
> 2 bits - max QoS as now
> 1 bit - noLocal
> 1 bit - retain as published
> 2 bits - retain handling
> 2 bits - topic ID type
> (I think DUP is not needed on subscribe - rely on suback).



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