Exchange Mapi and Network Traffic

In Exchange DAG there is an option to separate Mapi Traffic from Network Traffic.
I am not sure if I am correct, this can be done only if each Exchange server has at least 2 Network Adapters.

I need to understand What is exactly Mapi Traffic and what is exactly Network traffic with regards to Exchange.

Assuming this Exchange organization is in one Site.

Thanks
jskfanAsked:
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imkotteesSenior Messaging EngineerCommented:
Hi,

Please check DAG name and requirements section in below article.

http://technet.microsoft.com/en-in/library/dd638104(v=exchg.150).aspx

Configuring DAG Networks in Exchange 2010:
http://blog.gothamtg.com/2012/09/26/configuring-dag-networks/
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Jamie McKillopIT ManagerCommented:
Hello,

There are two types of network traffic with an Exchange DAG. MAPI traffic is used for communication between Exchange servers and between clients and the Exchange servers. Replication traffic is used for log shipping between DAG members. You need two NICs in each DAG member in order to have a separate replication network. You would want to create a separate replication network so that replication traffic doesn't have a negative impact on client performance.

-JJ
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jskfanAuthor Commented:
Thanks
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