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Configure and Customize Dell PowerFlex v3.6.x

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Jumbo Frame configuration for Linux

Configure Jumbo Frames for NIC cards in the Linux-based PowerFlex servers.

About this task

Perform the following steps, for all the NIC cards in the PowerFlex system:

Steps

  1. Run the ifconfig command to get the NIC information.
  2. Depending on the OS, run the command:
    Operating SystemCommand
    RHEL/CentOSEdit /etc/sysconfig/network-scripts/ifcfg-<NIC_NAME>
    SLESEdit /etc/sysconfig/network/ifcfg-<NIC_NAME>
  3. Add parameter mtu=9000 to the file.
  4. To apply the changes, type: service network restart
  5. Execute ifconfig again to verify that the settings have been changed.
  6. To test the command, type: ping –M do –s 8972<DESTINATION_IP_ADDRESS>
    Output should look similar to this:
    Figure 1. Test ping to ensure mtu setting
    Test ping to ensure mtu setting

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