Hassio MTU size > 1500?

dchui · July 6, 2019, 5:03am

Hi everyone,

I trying to find out if Hassio with RaspberryPi supports jumbo frames in a LAN network. Running Tasmoto with Core 2.3.

walaj · July 8, 2019, 4:40am

why?

https://kb.netgear.com/25091/Guidance-on-the-use-of-jumbo-frames

dchui · July 8, 2019, 6:33am

Any problems with Home Assistant with jumbo frames?

walaj · July 9, 2019, 4:35am

home assistant itself doesn’t know about jumbo frames - only the low level drivers for your NIC know about jumbo frames.

But everything you want home assistant to talk to (including your internet router if you have any external access requirements) will need to be set to jumbo frames.

Looking online, buildroot (base for Hassio) seems to support jumbo frames. No idea about tasmoto.

oriolism · July 9, 2019, 5:29am

The Internet itself use an MTU of 1500, jumbo frames are used on MPLS networks, data centers and some applications that needs a larger packet size without fragmentation. A larger MTU on your LAN if supported by all you networks devices may lower you latency a save some cpu cycles.

dchui · July 9, 2019, 6:48am

Thanks. Let me try that again.

dchui · July 9, 2019, 6:49am

Cool. I will give another try.