Domain trusts and functional level issues

I'm planing for next year to make a 2 way trust between 2 domains, I wonder if there are issues re. domain and forrest functional levels of the 2 domains.
Right now both domains are Server 2008 R2 for both domain and forrest functional levels. Should I keep it like this, or can I raise one of the domains to
Server 2012 R2 for both domain and forrest functional levels before making the trust

Please be free to give other advices. Trusts is new for me.
palle501Asked:
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Will SzymkowskiSenior Solution ArchitectCommented:
You should have no impact at all. If you were sitting on a 2000 domain with FFL/DFL sitting trying to create a trust with 2012R2 you might have some difficulty, but for 2008R2 and 2012R2 you should have absolutely no issues at all.

Will.

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Will SzymkowskiSenior Solution ArchitectCommented:
Another note is if both Forests are at least 2003 forest functional level you should not have any issues at all.

Will.
palle501Author Commented:
I would be glad if you have comments re. trusts that I should be aware of
br. Palle
palle501Author Commented:
ok. Thanks
Palle
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