Using a 1/10th of a second interval is rather anti-social. I know we rate-limit ICMP traffic down, and such a short interval would be detected as attack traffic, and treated as such. ... For what it is worth, I used to think the same, until I saw several providers themselves suggest that 1000 packets should be sent, with the 0.1 s interval. So, this is considered normal and appropriate nowadays.
Disagree. You are of course free to use whatever rate you want between your own end points. If you want a response from routers on the public Internet, you should *expect* this to be rate limited. I certainly don't think that a 0.1s interval is appropriate - and configure control plane policing on "my" routers accordingly. Steinar Haug, Nethelp consulting, sthaug@nethelp.no