Referring to the configuration shown in the exhibit, only the assured-forwarding queue exceeds its
configured transmission rate. Given this scenario, in which order will the queues be serviced?
A.
Assured-forwarding, expedited-forwarding, network-control, best-effort
B.
Assured-forwarding, network-control, expedited-forwarding, best-effort
C.
Expedited-forwarding, best-effort, network-control, assured-forwarding
D.
Expedited-forwarding, network-control, best-effort, assured-forwarding
Explanation:
Does not A) make more sense as the order should be high, then medium-high and finally low ?
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The DWRR services high priority with positive, until they go negative,
then it moves on to service low priority with positive credit.
In this question AF queue is already negative credit. hence it will be EF- then NC – then BE – then AF. D is correct.
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