[OASIS Issue Tracker] Commented: (MQTT-23) Should Message Identifier be called as Packet Identifier

[ http://tools.oasis-open.org/issues/browse/MQTT-23?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=33876#action_33876 ] 

Nick O'Leary commented on MQTT-23:
----------------------------------

Agree with all of Dave's points.

The change from getMessageId() to getPacketId() is an unfortunate, but likely necessary side-effect.

> Should Message Identifier be called as Packet Identifier
> --------------------------------------------------------
>
>                 Key: MQTT-23
>                 URL: http://tools.oasis-open.org/issues/browse/MQTT-23
>             Project: OASIS Message Queuing Telemetry Transport (MQTT) TC
>          Issue Type: Improvement
>          Components: core
>            Reporter: Rahul Gupta
>
> As Part of issue MQTT-17, it was proposed and agreed to use term "MQTT Control Packet" consistently and not "MQTT Command Message" in the specification. 
> However this change causes a problem in understanding of another term "message Identifier". Comments and discussion may be needed on the use of word Message Identifier and if it should be called as Packet Identifier.  I am opening this JIRA issue for further discussion in TC calls.
> example - from WD-04, line 383 - 385
> "A non zero  message identifier (MessageId) MUST be present in the variable header of the following MQTT command messages: PUBLISH(where Qos!=0), PUBACK, PUBREC, PUBREL, PUBCOMP, SUBSCRIBE, SUBACK, UNSUBSCRIBE, UNSUBACK "
> In WD-05
> "A non zero  message identifier (MessageId) MUST be present in the variable header of the following MQTT Control Packets: PUBLISH(where Qos!=0), PUBACK, PUBREC, PUBREL, PUBCOMP, SUBSCRIBE, SUBACK, UNSUBSCRIBE, UNSUBACK "
> Should message Identifier be called as Packet Identifier ?

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