R7#sh run | b nba
ip nbar port-map ftp tcp 20 21
!
class-map match-all telnet
 match protocol telnet
class-map match-all ftp
 match protocol ftp
!
policy-map Prob20to22
 class ftp
  bandwidth percent 25
 class telnet
  bandwidth percent 25
 class class-default
  bandwidth percent 50
!
!
interface FastEthernet0/0
 ip address 208.28.1.1 255.255.255.0
 duplex half
 speed auto
 max-reserved-bandwidth 100
 service-policy output Prob20to22
!