Description of problem:
Sometimes dnf cannot connect to a mirror. After some time it tries with the next mirror, after printing something like "Connection timed out after 120001 milliseconds". A timeout of 120s for a connection is just too big. If a connection to a server does not succeed in 1s it probably isn't worth using it anyway. I think a timeout of 3s would be suitable and reduce the pain caused by non-responsive mirrors.

[MIRROR] colord-libs-1.2.8-1.fc22.x86_64.rpm: Curl error: Timeout was reached for ftp://mirrors.zimcom.net/pub/fedora/linux/development/rawhide/x86_64/os/Packages/c/colord-libs-1.2.8-1.fc22.x86_64.rpm [Connection timed out after 120001 milliseconds]

Version-Release number of selected component (if applicable):
dnf-0.6.3-3.fc22.noarch