Siemens S223 Manual Do Utilizador

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UMN:CLI                                                                                                                                                              User  Manual 
SURPASS hiD 6615 S223/S323 R1.5 
148                                                                         A50010-Y3-C150-2-7619 
 
Fig. 7.2 
Weighted Fair Queuing 
 
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. 
3
7
6
7
7
4
1
The processing order in Strict Priority Queuing in case of entering 
packets having the Queue numbers as below
3
3
4
7
Output Scheduler
Lowest priority
highest priority
7
7
7
7
6
4
4
3
3
3
1
 
Fig. 7.3 
Strict Priority Queuing