Jumbo frames has high MTU value ( Maximum transmission unit).
When you enable Jumbo frames the MTU value will be 9000.
Jumbo frames are enabled to transmit packets of large size.
Suppose when you have a Onpremise Server and You want to transfer packet from Onpremise to AWS EC2 which is linked using a Site to Site VPN.
The first step will be to enable Network share (SMB) and then try to transmit a data from onpremise to AWS Windows EC2 using copy -paste method.
If you face the below error while accessing the AWS EC2 from Onpremise then you must enable Jumbo frames on both Servers. Please note this requires downtime for 2–3 mins.
Error -
Steps to enable Jumbo Frames :
In the run command type ncpa.cpl and a window appears showing your Ethernet
- Right click the Ethernet and choose properties. Shown below.
- Once the properties is opened … Choose Internet Protocol Version 4 and click configure
- Once configure is clicked a new window opens, out of the available tabs click on Advanced
- Once after clicking advanced a new window opens, choose Jumbo packet and then choose value as 9015
- Click on apply , close the window, go to cmd prompt and type the below to see the MTU value.
The above figure means the MTU value is changed to 9001.
You will be able to transfer the data from Onpremise to AWS EC2 at ease.
Happy learning!
(Since medium blog is not free, I have replicated my medium blog here)
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