cisco#show in tethernet 1/12
Ethernet1/12 is up
admin state is up,D edicated Interface
 Hardware: 100/1000/10000/25000 Ethernet, address:0081.c4b1.8a65(bia 0081.c4b1.8a65）
 MTU 1500 bytes, BW 25000000 Kbit, DLY 10 usec
 reliability2 55/255, txload 1/255, rxload 1/255
 Encapsulation ARPA, medium is broadcast
 Port mode is access
 full-duplex, 25 Gb/s, media type is 25G
 Beacon is turned off
 Auto-Negotiationis turned off FEC mode is Auto
 Input flow-control is off, output flow-control is off
 Auto-mdix is turned off
 Rate mode is dedicated
 Switchport monitor is off
 EtherType is 0x8100
 EEE(efficient-ethernet): n/a
  admin fec state is auto, oper fec state is Fc-fec