The act of trying repeatedly to connect to an unavailable
FTP server with little or no
time between connection attempts. It can be compared to repeatedly hitting the "redial" button on a telephone when dialing a phone number that is busy until the other
phone is no longer busy
Most
FTP sites have policies against hammering and require
FTP clients to set retry times at specific intervals, commonly at least 120 seconds between each attempt to connect. Most FTP sites can also monitor for devices that hammer, and once detected the server
will ban access to the offending IP address either permanently or for a limited amount of time.