> And how do you tell the difference between cut off packets, and a mtu drop? You don't, apart from enforcing a bare-minimum MTU for sanity's sake. If your jum

> And how do you tell the difference between cut off packets, and a mtu drop? You don't, apart from enforcing a bare-minimum MTU for sanity's sake. If your jumbo-size packets are getting randomly cut off by a middlebox, then they probably aren't stable at that size anyway.