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已答覆How to disable TCP Offload options

  • Thursday, 1 May, 2008 12:01Markus Schuhmacher 使用者勳章使用者勳章使用者勳章使用者勳章使用者勳章
     

    Because of network performence problems I have to disable "TCP Large Send Offload" and "TCP Checksum Offload" at the NIC of the Hyper-V manager (not at the physical NIC). I tested this at a full installation and it seems to help. But I plan to use the Core installation.

    How to disable the TCP Offload [...] there without the device manager (which is not available at the core installation (a grate function, really...))?

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  • Thursday, 1 May, 2008 22:53Andrew Mason - MSFTMSFT, 擁有者使用者勳章使用者勳章使用者勳章使用者勳章使用者勳章
     

    Hi,

     

    For the NIC, you'll need to modify the registry. There is an earlier thread on changing the binding order, which has the information to get you to the right place.

     

    There are some settings for TCP/IP, go to "netsh interface tcp" and then run "set global" and you'll see all the options for some of the advanced TCP/IP configuration. One of those may help.

     

    Andrew

     

  • Friday, 2 May, 2008 0:26Markus Schuhmacher 使用者勳章使用者勳章使用者勳章使用者勳章使用者勳章
     已答覆

    These settings are not at this place. They are saved at "HKLM\System\CurrentControlSet\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}\00<Index>

    - Ip4IpChecksum

    - Ip4TcpChecksum

    - Ip4TcpLsoV1

     

    --> http://msdn.microsoft.com/en-us/library/aa938424.aspx

     

    Changing these values showed the expected effects.

  • Monday, 6 July, 2009 17:20JohnGalt 使用者勳章使用者勳章使用者勳章使用者勳章使用者勳章
     
    Made all of the difference in the world! Thank you!