Re: no route to host incrementing in show interfaces flow-statistics
I worked with JTAC back in 2009(9.x code) extensively on this but never came up with root cause. As I have seen this increment on later versions of code I am pretty sure this is related to multicast traffic on a interface not configured for mcast or a group that is not in our scope. I have never seen this increment via the method you described using ping. I can also say this counter incrementing has not been attributed and traffic loss for our production traffic. Sorry if this is not much help.