Forefront TMG uses asynchronous input/output (I/O) to manage multiple I/O requests simultaneously. This results in more efficient use of resources because the Microsoft Firewall service can continue I/O while waiting for particular data.
Asynchronous I/O operation follows these steps:
For this process to take place, the application filter follows these steps:
Note This process differs for Windows overlapped operations. For more information, see IFWXExternalIOCompletion.
The following objects are directly related to the Forefront TMG implementation of asynchronous I/O:
Build date: 11/30/2009
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