Avaya Configuring DLSw Services Manual de usuario Pagina 159

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Using DLSw Prioritization
6-5
The Dequeue List
Three factors determine a packet’s weighted score:
Size of the packet
Percent of bandwidth allocated to the packet’s queue
Time spent in the dequeue list
The dequeuing algorithm calculates a packet’s dequeue weight using the
following formula:
Weighted Dequeuing Algorithm
Weighted dequeuing works as follows:
1. Each priority queue enters its first (oldest) entry on a dequeue list.
2. The dequeue list orders the packets according to a weighted score.
3. TCP requests DLSw packets.
4. The router sends the requested number of packets or bytes to TCP from the
top of the dequeue list, up to the configured queue limit.
5. TCP transmits the packets.
6. The sequence repeats at Step 1.
Figure 6-1 illustrates weighted dequeuing.
Weight =
Size of packet
Bandwidth %
- Time in dequeue list
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