Fig. 7.2 Weighted Fair Queuing; Fig. 7.3 Strict Priority Queuing - Siemens S223 User Manual

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Weighted Fair Queuing
Fig. 7.2
Strict Priority Queuing (SP)
SPQ processes first more important data than the others. Since all data are processed by
their priority, data with high priority can be processed fast but data without low priority
might be delayed and piled up. This method has a strong point of providing the distin-
guished service with a simple way. However, if the packets having higher priority enter,
the packets having lower priority are not processed.
The processing order in Strict Priority Queuing in case of entering
packets having the Queue numbers as below
Lowest priority
3
3
1 3
1 3 3 3
Strict Priority Queuing
Fig. 7.3
4
4 6
Output Scheduler
4 4 6 7
SURPASS hiD 6615 S223/S323 R1.5
highest priority
7
7
7
7
7 7 7
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User Manual