Best practice guide about Jumbo Frames
What is jumbo frame?
In computer networking, jumbo frames or jumbos are Ethernet frames with more than 1500 bytes of payload, the limit set by the IEEE 802.3 standard.[1] Conventionally, jumbo frames can carry up to 9000 bytes of payload, but variations exist and some care must be taken using the term. Many Gigabit Ethernet switches and Gigabit Ethernet network interface cards can support jumbo frames. Some Fast Ethernet switches and Fast Ethernet network interface cards can also support jumbo frames. (Wiki)
What speed to expect in the real life?
How to set it all up?
How to set the MTU
Mac: Open “System Preferences” → go to “Network” → Select the QNA Thunderbolt Ethernet → click “Advanced…” → go to the “Hardware” tab → change “Configure” to “Manually” → set “MTU” to “9000”.
Windows: Open “Settings” → go to “Network & Internet” → click “Change your adapter options” → right click on the Thunderbolt 3 Ethernet adapter and click “Properties” → click “Configure…” → go to the “Advanced” tab → select “Jumbo Frame” and set the value to “9KB MTU”.
NAS: Open “Network & Virtual Switch” → go to “Network” > “Interfaces” → find the applicable Ethernet adapter, click and select “Configure” → go to the “IPv4” tab → set “Jumbo Frame” to 9000
And Synology
Products Supporting Jumbo Frames
Cisco 6500 switches
Cisco Nexus 7K/5K switches