We are using BCM57508 100GbE 2-port NIC AOC-A100G-B2CM
https://www.supermicro.com/en/products/accessories/addon/AOC-A100G-b2CM.php

Running alma linux 5.15.133 kernel with dpdk v21.08. Both 100G ports are
working normal and able to tx/rx. But when I bring the link down using
"ifconfig ethx down" the link status shows it is down. But on that interface,
packets are still coming, also peer side link is not going down. Is there a
patch available for this? If I bring the link down from peer side, link goes
down on my machine side.