Enabling NetDMA

업데이트 날짜: 2010년 9월

적용 대상: Windows Server 2008 R2

NETDMA provides services for offloading the memory copy operation performed by the networking subsystem, when receiving network packets, to a dedicated DMA engine.

NetDMA must be enabled in the BIOS before performing this procedure. NetDMA support is often labeled IOAT support. See the computer manufacturer’s documentation for information about modifying BIOS settings.

레지스트리를 잘못 편집하면 시스템에 심각한 손상을 줄 수 있으므로 레지스트리를 변경하기 전에 컴퓨터의 중요한 데이터를 반드시 백업해야 합니다.

To enable or disable NetDMA

  1. 레지스트리 편집기를 열려면 시작, 실행을 차례로 클릭하고 regedit를 입력한 다음 확인을 클릭합니다.

  2. Locate the registry sub-key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters and click it.

  3. Locate the EnableTCPA registry entry. If this registry entry does not exist, right-click the Parameters sub-key, point to New, and then click DWORD (32-bit) Value).

  4. Replace New Value #1 by typing EnableTCPA, and then press ENTER.

  5. Double-click the EnableTCPA registry value you just created and do one of the following:

    • To enable NetDMA, type 1 in Value data, and then click OK.

    • To disable NetDMA, type 0 in Value data, and then click OK.

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