Refer to the Cisco IOS XR policy-map configuration exhibit.
What is wrong with the policy-map configuration?
A.
missing the priority percent command under class one and class two
B.
missing the police command under class one and class two
C.
missing the police command under class three
D.
missing the priority bandwidth command under class one and class two
E.
missing the bandwidth command under class one and class two
Explanation:
Hierarchical policing is also supported. In such a configuration, both parent and child policies have
class-maps
containing policing statements, as in the following example:
!
policy-map child
class gold
police rate percent 50 conform-action set precedence immediate exceed-action
drop
! !
policy-map parent
class match_all
police rate 10000 kbps burst 15000 exceed-action drop
service-policy child
IOS XR
LLQ example:
policy-map LLQ-policy
__class voice-internal
____priority level 1 << priority queue has precedence but requires a throttle (policing)
____police rate percent 5 <<< REQUIRED
____queue-limit 20 ms << default max threshold for priority queues is 10ms
__class bulk
____bandwidth percent 60 << cbwfq queue with min bw guar
____queue-limit 50 ms << default max threshold for regular queues is 100 ms
__class voice-external
____priority level 1
____Police rate percent 10
__class video
____priority level 2
____police rate percent 20
!
interface gig 0/0/0/1
__service-policy input LLQ-policy
interface gig0/0/0/2
__service-policy output LLQ-policy
0
0