Required ports between 2 FE servers

Hi All,
We have 2 FE pools in two Geographical locations, each FE pool has 3 Lync 2013 Ent servers. Uses from each locations  IM, av and video conference among them. In such case what ports need to be opened between the pools?
In case of DR at any locations users from DR locations will be moved to surviving node. In such case what ports need to be opened between the pools?

please refer to this amazing tool...
http://blogs.technet.com/b/nexthop/archive/2012/07/03/lync-firewall-rules-viewer.aspx
http://www.lync-solutions.com/Documents/LyncFirewallViewer.zip
You can thank me later... it's great.
I am looking to find any real changes from 2010 to 2013 ... in your scenario.
SIP/MTLS TCP 5061
DCOM TCP 135
SIP/MTLS TCP 5062
SIP/MTLS TCP 8404
SIP/MTLS TCP 5080
HTTPS TCP 444
Ports 50001 to 50003 need to be open for each server.

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