Refer to the Exhibit.
Traffic is flowing through an MX Series router. Traffic using the top and critical schedulers is out of
profile, while all other traffic is currently in profile.
Referring to the exhibit, which two statements are correct? (Choose two.)
A.
The top queue is serviced before the best-effort queue.
B.
The top queue is serviced after the best-effort queue.
C.
The critical queue is serviced before the best-effort queue.
D.
The critical queue is serviced after the best-effort queue.
WHY?
PLZ Explain????
Junos OS performs priority queueing using the following steps:
1. Services the strict-high priority queue before any other queues are served
— “top” will always be serviced first
2. Services the minimum bandwidth (transmit rate) of low-priority queues until the minimum is met or the queues are empty
— “less-critical”, “data”, and “best-effort” will be serviced before “critical” since “critical” is out-of-profile
3. Services all other low-priority queues and needs that exceed the minimum bandwidth
— service “critical” since it’s out-of-profile