350-001 · Question #29
A branch router is configured with an egress QoS policy that was designed for a total number of 10 concurrent VOIP Calls. Due to Expansion, 15 VOIP Calls are now running over the link, but after the…
The correct answer is D. Increase the policing rate for the priority queue. The question works on the premise that there was no congestion on the link upto the 13th call. When you please the 14th call there is congestion on the link. When there is NO congestion the priority command is allowed to take as much bandwidth as required. When there is…
Question
A branch router is configured with an egress QoS policy that was designed for a total number of 10 concurrent VOIP Calls. Due to Expansion, 15 VOIP Calls are now running over the link, but after the 14th call was established, all calls were affected and the voice quality was dramatically degraded. Assuming that there is enough bandwidth on the link for all of this traffic, which part of the QOS configuration should be updated due to the new traffic profile?
Options
- AIncrease the shaping rate for the priority queue.
- BRemove the policer applied on the priority queue.
- CRemove the shaper applied on the preiority queue.
- DIncrease the policing rate for the priority queue.
How the community answered
(60 responses)- A10% (6)
- B5% (3)
- C20% (12)
- D65% (39)
Explanation
The question works on the premise that there was no congestion on the link upto the 13th call. When you please the 14th call there is congestion on the link. When there is NO congestion the priority command is allowed to take as much bandwidth as required. When there is congestion on the link the Priority command has to only use the configured bandwidth. Adding the 14th call caused congestion, which in turn made the priority command restrict the calls to the configured value of 10 hence affect the quality of all calls.
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