QoS Components
Cisco offers a wealth of QoS resources on its switch and router platforms. These resources are classified into one of three categories, which are discussed in this section. The category of QoS resources used most often in production, however, is the Differentiated Services category, which offers greater scalability and flexibility than the resources found in the Best-Effort or Integrated Services categories.
QoS Categories
All of the Cisco QoS features are categorized into one of the following three categories:
• Best-Effort—Best-Effort does not truly provide QoS, because there is no reordering of packets. Best-Effort uses the first-in first-out (FIFO) queuing strategy, where packets are emptied from a queue in the same order in ...
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