A brief about the issue. I read http://technet.microsoft.com/en-us/library/gg412949.aspx which tells to run Set-CsSipDomain -Identity fabrikam.com -IsDefault $True to make additional domain as default domain.
Want to know the exact procedures before I need to follow without affecting the existing set up before merging the topology again.
We have OCS 2007 in production where abc.company.com is primary sip domain and company.com is additional sip domain.
Recently installed Lync 2010 with primary sip domain as company.com and abc.company.com as additional sip domain.
Tried to merge both the topology after installing CU and OCS backward compatibility tool on Lync 2010 and it ended up with below error.
System.Management.Automation.CmdletInvocationException: The value of default domain in “Office Communications Server 2007” / “Office Communications Server 2007 R2” is “abc.company.com”. The value of default domain in Lync Server 2010 is “Company.com”. These values need to be equal before you continue merging the topology.
