[OASIS Issue Tracker] (MQTT-591) DISCONNECT retainRegistrations flag for sleep

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

Simon Johnson created MQTT-591:
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             Summary: DISCONNECT retainRegistrations flag for sleep
                 Key: MQTT-591
                 URL: https://issues.oasis-open.org/browse/MQTT-591
             Project: OASIS Message Queuing Telemetry Transport (MQTT) TC
          Issue Type: Improvement
          Components: MQTT-SN
            Reporter: Simon Johnson
            Assignee: Simon Johnson


Registrations being removed across SLEEPING states has been raised as a concern due to the overhead of the need to reestablish using REGISTER packets during the AWAKE state.

Both cases are valid, since some devices want to truly SLEEP and will clear ephemeral data during this phase. Therefore we should add optionality to this function using a retain registrations, sent by the client during the DISCONNECT session-expiry-interval packet.



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