some time ago i was using this https://iperf.fr/ to check/stress test my network …(samba,sftp,ssh)
edit: i like this LED color based on bandwidth usage , i found it very handy , so no need to check luci stats/graphs …just the rainbow on leds 
some time ago i was using this https://iperf.fr/ to check/stress test my network …(samba,sftp,ssh)
edit: i like this LED color based on bandwidth usage , i found it very handy , so no need to check luci stats/graphs …just the rainbow on leds