So the conclusion of Frank-Michael is correct: It must
be a libzypp issue.
If I follow well the thread it seems this is a meta-data
anyway, could it be possible to have
* a guess of the dowloading time
* a way to stop this (I don't know for 10.1, but on 10.0
clickin,g stop didn't stop anything)
and a background upgrade should be nice (cron?).