Yep, that’s it but use a comma:
browserip=ctxdc1,ctxdc2
No need to put every server in just the Most preferred DC first and the preferred DC second.
I like to use CNAME’s rather than server name as in makes it easy to use DNS to point to different servers. Also this is only fault tolerant, it will not round robin the names in the list,
Cheers,
-TT