Can I have my Exchange 2010 MAPI and REPLICATION NICs in the same network segment

Our network has become very flat and network team is refusing to create private VLANs accross data centers so I am wondering if the following scenario will work for my Exchange 2010. Please do not ask why Exchange 2010, long explanation :)

I have a 4 member DAG distributed accross two data centers: SITEA and SITEB
Each server on SITEA will have a NIC team for MAPI communications on subnet 10.12.239.0/22 and REPLICATION team in the same network segment.
Each server on SITEB will have a NIC team for MAPI communications on subnet 10.15.84.0/22 and REPLICATION team in the same network segment.
Will it suffice to Exclude the MAPI Teams  from replication on the Exchange console since all MAPI and REPLICATION teams are in the same segment? Notice replication will flow across data centers in the following manner:

ServerA in SITEA will replicate to ServerA in SITEB
ServerB in SITEA will replicate to ServerB in SITEB  

Hope question is clear otherwise please let me know.
regards,
Dolores
doloresmjAsked:
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Will SzymkowskiConnect With a Mentor Senior Solution ArchitectCommented:
Your scenario will work but Microsoft recommends private vlans for this data to pass.

They state this specifically because if you have a failed DAG member and you need to reseed the database and depending on the size of database you are reseeding it can saturate your network.

This is why the recommended approach is to separate vlans so that replication traffic will not disrupt the production network.

Will.
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