(re-adding Adam's text that didn't get quoted, but matters) On Wed, 08 Jul 2020 13:49:56 +0300, Saku Ytti said:
On Wed, 8 Jul 2020 at 13:46, Radu-Adrian Feurdean <nanog@radu-adrian.feurdean.net> wrote: On Wed, Jul 8, 2020, at 00:09, Adam Thompson wrote:
Good luck with tunnelling LACP, no matter what boxes you have - LACP has (de facto) hard jitter requirements of under 1msec, or you'll be getting TCP resets coming out your ears due to mis-ordered packets. Errr.... sorry, but at the latest news, TCP was supposed to handle out of order packets and reorder them before sending them to upper layer. Yes, however new reno and the like are tuned for practical Internet. Practical Internet has lot more packet loss than reordering, so TCP algorithm considers any amount of reordering a packet loss, causing an immediate resend, destroying your performance.
There's a difference between a TCP *resend*, and a *RESET*. Triggering a resend on a re-order is reasonably sane, sending an RST isn't....