Allied Telesis AT-S63 - Manual (Page 53)

AT-S63 Management Software Web Browser User’s Guide
Section I: Basic Operations 53
5. To clear all the counters for the port, click Clear. To clear the counters
for all ports on the switch, click Clear All. (The Clear and Clear All
buttons are only available when you log on as a manager. They are not
available when you log on as an operator.)