openSUSE:Leap:42.1 openSUSE Leap 42.1 https://download.opensuse.org/distribution/leap/42.1/repo/oss/ iftop Real-Time Interface Bandwidth Usage iftop does for network usage what top(1) does for CPU usage. It listens to network traffic on a named interface and displays a table of current bandwidth usage by pairs of hosts. It is handy for explaining why the network links slow.