Hi all ,
I have a question about free/busy information request , can someone help me clarify this please.
Context : Exchange migration from an exchange 2010 environment to a exchange 2013 environment with a lots of mailbox to migrate lets say 10 000. The 2 environment are separate by a wan link. I don't have any trust put In place between the two environment. I have configure the availability service for free/busy lookup in an untrusted cross-forest topology as per the following link.http://technet.microsoft.com/en-us/library/bb125182(v=exchg.150).aspx. Free/busy information are retrieve on an organization wide basis and not per-user basis.
Question : when a user do a free/busy request for two different user from the source exchange 2010 to the target exchange 2013 will the availability service read the 10 000 users free/busy over the wan link or only the 2 user free/busy. in other words is the 10 000 user free/busy information's go trough the wan link every time a user request free/busy information ?
thanks you for your help
Frédéric Bédard