Are there benefits to adding crossover cable between two servers for DFS replication and SQL Always On?

i have 2 identical servers 4 network interfaces each. primary usage 2 servers hosting sql server instance on high availability , dfs replication. 2 network interfaces each server used connect main network, while other 2 (on each) thinking using crossover cable possibly provide shorter path 2 servers communicate.

will there benefits doing so, moreover, teaming 2 crossover cable more?

edit: below link article got idea of moving dfs replication traffic crossover. wasn't able find info whether same thing applied sql on high availability.

http://blogs.technet.com/b/filecab/archive/2006/08/24/449013.aspx

hi,

according description, understanding want connect 2 servers crossed cable(2 nics).

just blog suggested, directly connect servers crossed cable , configure corresponding route entries improve efficiency.

if both servers have 2 nics connect, recommend team 2 nics bandwidth aggregation. nic teaming supported windows server 2012/2012 r2, detailed information may reference:
nic teaming overview
https://technet.microsoft.com/en-us/library/hh831648.aspx

besides, file servers, smb multichannel (a feature included windows server 2012/2012 r2 , part of smb 3.0 protocol) helpful increasing network performance , availability. detailed information reference:
the basics of smb multichannel, feature of windows server 2012 , smb 3.0
http://blogs.technet.com/b/josebda/archive/2012/05/13/the-basics-of-smb-multichannel-a-feature-of-windows-server-2012-and-smb-3-0.aspx

for sql server, suggestions in sql server best practices helpful you:
https://technet.microsoft.com/en-us/sqlserver/bb671430.aspx

best regards,
eve wang

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Windows Server  >  Platform Networking