GTM - Load Balancing an existing URL

Hi All,

I have configured 2 BIG-IP VE provisioned with DNS. I am looking for an advise just to make sure my logic is working correctly.

I have an existing URL tv.northclient.com that needs to be balanced between 2 DCs. I have configured the listeners and created a WIP with the same name tv.northclient.com. I am thinking in the LDNS I need to create 2 new A records gtm1.wip.northclient.com-10.10.10.1 (listener dc1) and gtm2.wip.northclient.com-10.10.20.1 (listener dc2).

Also, I am going to create 2 NS records like

tv.northclient.com IN NS gtm1.wip.northclient.com tv.northclient.com IN NS gtm2.wip.northclient.com

Is my logic working correctly or I am missing something to get this working ?