Disable flow control on the devices at each end of the link.
If the above is not possible, please note:
Disabling flowcontrol does not stop pause frames.
If there is a port with a pauseframe issue and you want to try and stop the pauseframes, you need to run the command
clear port advertise port.x.x pause
A warning, if you run this command on a up link port then there will be a topology change