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Pumping up MTUs is mostly viable on a file transfer networks. Tried it on 10G NAS - worked pretty well. But that's LAN, where retransmits are pretty non-existen
by IYasha 5y ago
Pumping up MTUs is mostly viable on a file transfer networks. Tried it on 10G NAS - worked pretty well. But that's LAN, where retransmits are pretty non-existent. On the internet larger damaged packets will cause larger retransfers. And one uncapable router/switch can ruin the whole profit.
- sneak 5y agoFun fact: the default mainline kernel driver (or at least the one used by Raspbian and Ubuntu) for the Raspberry Pi gigabit interface does not support jumbo frames without patching and recompiling the kernel. :/ This is a colossal pain if you run your home lan at 9000 for the aforementioned storage/NAS reason.
- IYasha 5y agoWow. I haven't used Raspberry, but I hope someone fixes that. Another thing I forgot to mention - MTU mismatch is hard to debug. Everything works until you hit the packet limit. I had a very funny case when I worked through SSH console normally until I maximized its window )) Also, diferent devices have different ways of setting MTU up - with or without headers, etc. In my case there was linux-based NAS, proprietary managed switch, linux, win7 and android clients. And because of the Ethernet-to-USB adapter I had to revert the whole LAN MTU setup to minimum.