connection string IP instead of instance name
We have Two Site ( "A" & "B" ) and both site are different subnet (Site "A" 125 sunbet ) (Site "B" 240)and we has been installed Two type of SQL Cluster 2014 one site "A" and another one Site "B" currently all our branches application are connected via Site "A" cluster Virtual IP ( 192.168.125.50) not instance name our application are working well no issues currently ! we are going to do a maintenance in site "A" so we would like to run the site "B" but site "B" cluster virtual IP is ( 192.168.240.50) if i run site "B" SQL cluster our branches application are not able to connect due to the virtual IP issues as i say the above line
How can we solve this issues via connection string ? or is there any best option are available ?