I have installed CUCM version 7.1.3 (2 servers : Publisher and Subscriber).
I have implemented EM redundancy using DNS,
i've created hostname in my DNS poiting to both nodes ( PUB & SUB) IP adresses and i've changed the URL service from IP adresse to the hostname.
Everything work fine when both nodes are up. Once one fo node goes down some ip phone take a very long time requesting the EM service. from my observation, i noticed that some ip phone point always to the Publisher and other point always to the Subscriber, once the server that they point to is down they take a long time to process EM login operation.
i'm wondering if there is any solution that makes this kind rendundancy work more quickley.
thx in advance for your valuable help.