I am trying to get the correct DNS entries in place for Lync 2010. Currently I have _sipinternaltls defined for our current OCS environment with three records, FE & BE OCS servers plus OCS pool name. I will have a total of 2 Lync pools, 2 FE each and 1 BE server each. Do I just add more _sipinternaltls entries under _tcp including the 4 FE, 2 BE, and 2 Pools? I am just curious how this will affect our current OCS environment...? Will these be the only entries needed to get the topology published? I am also confused about the A records. Wouldn't that be registered with DNS automatically? Thanks!