IApp does not match microsot recomendation
Our MS Exchange administrator has come to me with a problem with an issue relating to how the BigIP is handling ActiveSync connections. They are regularly seeing the following warnings:
The average of the most recent heartbeat intervals [540] for request [Ping] used by clients is less than or equal to [540]. Make sure that your firewall configuration is set to work correctly with Exchange ActiveSync and direct push technology. Specifically, make sure that your firewall is configured so that requests to Exchange ActiveSync do not expire before they have the opportunity to be processed.
He has pointed me to this article https://technet.microsoft.com/en-us/library/aa997252(v=exchg.141).aspx. It seems to say that firewalls (and possibly the BigIP) should have a time out of 30 minutes set.
We have used the iApp f5.microsoft_exchange_2010_2013_cas.v1.4.0 to configure the BigIP. (I've checked and there is now a 1.5.0 version but this appears to have the same issue). From what I can see when the iApps creates the TCP profiles for exchange is doesn't change the Idle Timeout values from 300 seconds (the default) to match the recommendations from Microsoft to 1800 seconds. If the option to enable RPC connectivity is selected then it appears that the Idle Timeout value is changed to 7200 seconds.
Can any one from Microsoft coment on why the iApp does not follow the recomendations from microsoft with regards tothe session time outs and if it is likely to be changed in future releases?
I have already tried asking this to the support TAC but as this is not a brake fix they are unable to assist (fair enough)