On 2019-10-03 02:49, Jason Bacon wrote: > I saw frequent hangs (self-resolving) with an MTU of 65520. Cutting it > in half improved reliability by orders of magnitude, but still > occasional issues. Halving it again to 16380 seemed to be the sweet spot. Try this fix: https://svnweb.freebsd.org/changeset/base/352955 --HPS