R1#sh int fa0/0
FastEthernet0/0 is administratively down, line protocol is down
…<omitted>
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
…<omitted>
R1#   conf t
Enter configuration commands, one per line.  End with CNTL/Z.
R1(config)#int fa0/0
R1(config-if)#load
R1(config-if)#load-interval ?
  <30-600>  Load interval delay in seconds

R1(config-if)#load-interval 600
R1(config-if)#do sh int fa0/0
FastEthernet0/0 is administratively down, line protocol is down
…<omitted>
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  10 minute input rate 0 bits/sec, 0 packets/sec
  10 minute output rate 0 bits/sec, 0 packets/sec
…<omitted>