Program or serviceĮxpected behavior when both the service and TCP Chimney Offload are enabled The following table shows how TCP Chimney Offload coexists with other programs and services. When the TCP Chimney Offload technology offloads TCP/IP processing for a given TCP connection to a dedicated network adapter, it must coexist with other programs or services that rely on lower layer services in the networking subsystem. How TCP Chimney Offload coexists with other programs and services On the Advanced tab, click Enabled or Disabled in the box next to the TCP offload entry.ĭifferent manufacturers may use different terms to describe TCP Chimney Offload on the Advanced properties page of the network adapter.Under Network Adapters, double-click the network adapter that you want.To enable or disable TCP Chimney Offload, follow these steps:
#Netsh int ip fast how to#
How to configure TCP Chimney Offload on the network adapter At the command prompt, type the netsh int tcp show global command, and then press ENTER.To determine the current status of TCP Chimney Offload, follow these steps: At the command prompt, type the netsh int tcp set global chimney=disabled command, and then press ENTER.To disable TCP Chimney Offload, follow these steps: At the command prompt, type the netsh int tcp set global chimney=enabled command, and then press ENTER。.Use administrative credentials to open a command prompt.To enable TCP Chimney Offload, follow these steps:
How to configure TCP Chimney Offload in the operating system However, OEM installations may enable TCP Chimney Offload in the operating system, in the network adapter, or in both the operating system and the network adapter. By default, TCP Chimney Offload is disabled in both these locations. TCP Chimney Offload will work only if it is enabled in both locations. The advanced properties page of the network adapter.TCP Chimney Offload can be enabled or disabled in the following two locations:
#Netsh int ip fast windows#
How to enable and disable TCP Chimney Offload in Windows Server 2008 Both TCP/IPv4 connections and TCP/IPv6 connections can be offloaded if the network adapter supports this feature. TCP Chimney Offload is available in all versions of Windows Server 2008 and Windows Vista. In Windows Server 2008, TCP Chimney Offload enables the Windows networking subsystem to offload the processing of a TCP/IP connection to a network adapter that includes special support for TCP/IP offload processing. TCP Chimney Offload is a networking technology that helps transfer the workload from the CPU to a network adapter during network data transfer. This article describes the TCP Chimney Offload, Receive Side Scaling (RSS), and Network Direct Memory Access (NetDMA) features that are available for the TCP/IP protocol in Windows Server 2008.Īpplies to: Windows Server 2012 R2 Original KB number: 951037 TCP Chimney Offload overview
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