LevelOne ProCon GSW-4896, Руководство пользователя

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User Manual
66
3-6. QoS(Quality of Service) Configuration
The
switch
offers seven powerful QoS functions. Moreover, Priority
Configuration function set for each port by different precedence is also provided.
QoS enables you to provide better service to certain flows. This is done by either
raising the priority of a flow or limiting the priority of another flow. When using congestion-
management tools, you try to raise the priority of a flow by queuing and servicing queues in
different ways. The queue management tool used for congestion avoidance raises priority by
dropping lower-priority flows before higher-priority flows. Policing and shaping provide priority
to a flow by limiting the throughput of other flows. Link efficiency tools limit large flows to
show a preference for small flows.
3-6-1. Priority
Fig. 3-22