This paper provides information about a new innovation in Microsoft networking - TCP Chimney protocol stack offload. TCP Chimney offloads the TCP protocol stack to a Network Interface Card (NIC) while preserving customer investments in applications, manageability, and security. Applications that are currently bound by network processing overhead will generally scale better when used with TCP Chimney. This paper is for the technical community that wants to have a deeper insight into how TCP Chimney operates. It is targeted to provide specific insights into implementation issues for the Independent Hardware Vendors (IHVs) as well as advanced system administrators who wish to understand how the technology works.
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