Configure and Customize Dell PowerFlex v3.6.x

Jumbo Frame configuration for Windows

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

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

Change the Maximum Transmission Unit (mtu)setting to 9,000, or the highest value that is supported by the switch and the connected nodes.
NOTE:In some Windows OS versions the highest Jumbo Frame value is 9014 instead of 9000. If applicable, set the mtu to 9014 instead of 9000.
Determine the appropriate NIC name by typing the command:
```
netsh interface ipv4 show interface
```
Output similar to the following appears:
Figure 1. Show interface output
In this example, index 7 is the appropriate network.
In the Advanced tab of the Adapter Properties dialog for your vendor and driver, change the value of Jumbo Packet to 9014, as illustrated in the following figure:
Figure 2. Adapter properties
Click OK.
The network connection may disconnect briefly during this phase.
Type the command:
```
netsh interface ipv4 set subinterface <network_ID> mtu=9028 store=persistent
```
where, network_ID is the ID from the output in the previous step; in this case, the ID is 7.
Verify that the configuration is working, by typing the command:
```
ping –f –l 8972 <Destination_IP_Address>
```
Output similar to the following should be displayed:
Figure 3. Ping output
NOTE:Ensure that the switch supports 10 GB Ethernet.