Cisco Cisco IOS Software Release 12.2(27)SBC

priority
police rate
bandwidth rate

priority
police rate
bandwidth rate

Compatibility: If a policy map has classes with the bandwidth command configured, the 
PRE2 allows you to configure the priority command in another class before configuring the 
police command in the class. For example:

class Child2

priority

police 8000

class Child1

bandwidth 8000

If a policy map has classes with the bandwidth command configured, the PRE3 allows you to 
configure the priority command in another class only after you configure the police command 
in the class. For example:

class Child2

police 8000

priority

class Child1

bandwidth 8000O

The PRE3 accepts the PRE2 configuration order (priority configured before police command) 
when the router is switching over to the redundant PRE.