Linux Display Bandwidth Usage on Network Interface By Host Using iftop command
sudo apt-get install iftop
iftop
iftop -i interface
iftop [options]
However, iftop works best when you use filters. For example, if you want to find out how much bandwidth users are wasting or trying to figure out why the network is slow, run:
# iftop -f icmp
You can display or analyses packet flowing in and out of the 192.168.1.0/24 network:
# iftop -F 192.168.1.0/24
Disable output for DNS traffic by using filter code such as:
# iftop -f 'not port domain'
