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
class-map match-any sql
 match protocol sqlnet
 match protocol sqlserver
class-map match-all TheSqlServer
 match access-group name Prob2122
 match class-map sql

!
npolicy-map Prob20to22
 class TheSqlServer
  priority 56 128
 class ftp
  bandwidth remaining percent 25
 class telnet
  bandwidth remaining percent 25
 class class-default
  bandwidth remaining 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
!
ip access-list extended Prob2122
 permit ip host 83.23.11.123 any
 permit ip any host 83.23.11.123
!