Jumbo_Frame.txt Driver File Contents (Install_Vista_6198_1022.zip)

================ All PCI/PCIe 8169/8168 10/100/1000 NETWORK ADAPTER =============

Q. What is 'Jumbo Frame' ? What is the purpose of this feature ? 

A. This feature is for performance. It increases the maximum length of one packet.

   This feature is out of ethernet specific and has ethernet switch/hub compatibility.
   If the ethernet switch could not support the jumbo frame, the packet will be discarded.
   Users may directly link the 2 machines to avoid the maximum length limitation but this also limit the connectivity.

   Driver will disable 'Large Send Offload (IPv4)' after user enables this feautre, 
   TCP/IP could has better performance if it use jumbo frame without large send.
   If users enable both of them, the driver automatically chooses 'Jumbo Packet'.

   For switch compatibility and TCP/IP performance ,  it is better to use 'Large Send Offload (IPv4)' rather than 'Jumbo frame'

 PS:

 Althrough, the 'Advanced' page has 'Disable, 2KB MTU, 3KB MTU, ... 7KB MTU'. 
 Driver will not enable the option which exceeds the NIC hardware limitation.
 If exceeds, driver automatically decreases the length to a proper value.

 How to verify jumboframe works :

 1. Both sides enable the jumboframe to a identical value.  
    If two sides has different jumboframe length limitation, use smaller value.
    For example, cardbus 8169 and PCI 8169 should use 3KB.

 2. Both side must disable firewall.

 3. To avoid switch/hub compatiblity issue , please connect the two NICs directly.

 4. Ping a large packet to the other machine.  Ping xxx.xxx.xxx.xxx -l 65000

 5. If responses successfully, the jumboframe works.
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How To Update Drivers Manually

After your driver has been downloaded, follow these simple steps to install it.

  • Expand the archive file (if the download file is in zip or rar format).

  • If the expanded file has an .exe extension, double click it and follow the installation instructions.

  • Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.

  • Find the device and model you want to update in the device list.

  • Double-click on it to open the Properties dialog box.

  • From the Properties dialog box, select the Driver tab.

  • Click the Update Driver button, then follow the instructions.

Very important: You must reboot your system to ensure that any driver updates have taken effect.

For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.

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