We bought a couple 5524's to use strictly as iSCSI switches for our SAN. Inisde the gui it has an SCSI optimization setting but i need to also enable portfast and mtu 9216 globally. i have 2 switches connected with hdmi so that i have unit 1 and 2. if i do interface range gi1/0/1-24 i can then do spanning-tree portfast. but im not sure how to also enable it for the two 10GbE ports. i am also unsure how to set mtu to 9216. someone told me to just type mtu 9216 but its not a recognized command.