Enabling or disabling flow control

You must enable flow control on both ports in a given link. Otherwise, flow control does not operate on the link and appears as Off in the show interfaces brief port listing, even if flow control is configured as enabled on the port in the switch. Also, the port (speed-duplex) mode must be set to Auto (the default).

To disable flow control on some ports, while leaving it enabled on other ports, just disable it on the individual ports you want to exclude.