The clone operation results in a very large number of packets

[9LLPPLL6]

I recently implemented some of my own ideas on this project. I tried a clone3 on a leaf node switch, I started ping, I captured packets using tcpdump at the ingress and eexit of the switch, and then analyzed it in wireshark. The number of egress packets will be much more than the ingle. About 1000 times more than the ingle. Don't the number of egress packets be the same as the number of ingle. I wonder.
clone.pdf