nettop

Display updated information about the network. More information: https://keith.github.io/xcode-man-pages/nettop.1.html.

Monitor TCP and UDP sockets from all interfaces:

nettop

Monitor TCP sockets from Loopback interfaces:

nettop -m {{tcp}} -t {{loopback}}

Monitor a specific process:

nettop -p "{{process_id|process_name}}"

Display a per-process summary:

nettop -P

Print 10 samples of network information:

nettop -l {{10}}

Monitor changes every 5 seconds:

nettop -d -s {{5}}

While running nettop, list interactive commands:

h

Display help:

nettop -h