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Configuring Your Network to Enable Jumbo Frames › How to Exploit Jumbo Frames for CA Cloud Storage for System z › Modify MTU Size

Modify MTU Size

To decrease the amount of overhead that is caused when using a small block size modify the MTU size. The default MTU is 1492 bytes for networks in Layer 3 mode. When using jumbo frames the MTU is 8992.

Follow these steps:

  1. Type the following command: 
    yast
  2. Navigate to Network devices, Network settings in the YaST Control Center to modify your MTU type.
  3. Move your cursor to the line for your OSA adapter in Network Settings. Tab to Edit and press Enter.
  4. Go to the General tab in Network Card Setup and change the MTU to 8992. Tab to NEXT and press Enter.
  5. Select OK to save the network configuration changes.
  6. Reboot your CA Cloud Storage for System z Linux Server.