[OASIS Issue Tracker] (MQTT-278) Server keepalive

[ https://issues.oasis-open.org/browse/MQTT-278?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ken Borgendale updated MQTT-278:
--------------------------------

    Summary: Server keepalive  (was: Server initiated ping)

> Server keepalive
> ----------------
>
>                 Key: MQTT-278
>                 URL: https://issues.oasis-open.org/browse/MQTT-278
>             Project: OASIS Message Queuing Telemetry Transport (MQTT) TC
>          Issue Type: Improvement
>          Components: futures
>            Reporter: Ken Borgendale
>
> The MQTT 3.1.1 spec allows the client to send a PINGREQ to the server which has the dual affect of telling the server that the client is still up, and telling the client that the server is still up. 
> Change to also allow the server to also send a PINGREQ to the client. 
> While a server is often informed when a client connection is terminated, it has no method to check this if it is not informed. 
> Also change PINGRESP to be allowed from client to server. 
> While we are at this, we should clarify the expected behavior of either side if they receive a PINGRESP without having send a PINGREQ. My suggestion is that it should be ignored but there is currently no text (normative or not) to indicate what should be done 



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