Ethernet flow control should be disabled by default
Plus Target Version:
Ethernet flow control has no place on a firewall except in very rare scenarios and should be disabled by default.
ix0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
media: Ethernet autoselect (10Gbase-Twinax <full-duplex,*rxpause*,*txpause*>)