right. its important though that this is a fairly radical
underestimate of the two-way loss since most of the packets didn't
actually have to make it all the way to the destination and back
4. The current TTL is max, and something resolved, but it
wasn't the precise target. Then we don't know, as this could either
be a logical proxy for the target, or it could be something else.
Punt.
I don't see any reason not to treat this as the same as reaching the
final destination...but if this is a small number of samples then its
probably best just to throw them out
2. The current TTL is max, and nothing resolved. Then take all such
complete failures, moving back, until at least one IP resolved for a
given TTL, this last non-inclusive.
this case is fairly hard...since the loss rate at this instant was
essentially infinite..if you express each of the traceroutes as a
probability then 1.0 works...maybe it would be better if you tabulated
ocurrences of total reachabilty failure seperately