One of our servers with Windows 2008 R2 Enterprise Edition runs on VmWare as a Virtual Machine. This server is an application server and connects to hundreds of systems transferring large amounts of data over network with FTP and Oracle SQLLOADER. We provided the best network environment by means of RAM, bandwidth, etc. However sometimes we face to bottlenecks.
Could you please provide me advanced tips and techniques to harden this server which has heavy network load?