
Using Protocol Prioritization Queues
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The Dequeuing Process
After queuing packets, the router empties the priority queues by sending the traffic
to the transmit queue using one of two dequeuing algorithms:
• Band
width Allocation Algorithm
• Strict Dequeuing Algorithm
By default, protocol prioritization uses the bandwidth allocation algorithm to send
traffic from the three priority queues to the transmit queue. You specify the active
dequeuing algorithm by setting the Pr
ioritization Algorithm Type parameter, as
described in “Editing Pr
otocol Prioritization Parameters” later in this chapter.
F
igure 2-1 illustrates the dequeuing process, with default configuration values.
Figure 2-1. Protocol Prioritization Dequeuing
Transmit
queue
Physical
interface
High
queue
Low
queue
Dequeuing algorithm
(Default algorithm = bandwidth allocation)
70% of bandwidth
20% of bandwidth
10% of bandwidth
(Default latency
= 250 ms)
Normal
queue
TF0001A
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