Which statement describes the Cisco best practice recommendation about priority queue
bandwidth allocation in relationship to the total link bandwidth when multiple strict priority LLQs are
configured on the same router interface?
A.
Each LLQ should be limited to one-third of the link bandwidth capacity.
B.
The sum of all LLQs should be limited to two-thirds of the link bandwidth capacity.
C.
The sum of all LLQs should be limited to one-half of the link bandwidth capacity.
D.
The sum of all LLQs should be limited to one-third of the link bandwidth capacity.
E.
Cisco does not recommend more than one strict priority LLQ per interface.
Explanation:
Cisco Technical Marketing testing has shown a significant decrease in data application response
times when Real-Time traffic exceeds one-third of a link’s bandwidth capacity. Cisco IOS Software
allows the abstraction (and, thus, configuration) of multiple LLQs. Extensive testing and
production-network customer deployments have shown that limiting the sum of all LLQs to 33
percent is a conservative and safe design ratio for merging real-time applications with data
applications.