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Quality of Service
(QoS)
This chapter describes the concept of Quality of Service (QoS) and
explains how to configure QoS on the Intel
®
NetStructure
™
480T routing
switch.
Overview of Policy-Based Quality of
Service
Policy-based QoS allows you to assign specific levels of service to
different traffic types traversing the switch. Policy-based QoS is an
effective control mechanism for networks that have heterogeneous traffic
patterns.
Using Policy-based QoS,
you can specify the
service level for a
particular traffic type.
Policy-based QoS allows you to protect bandwidth for important
categories of applications or specifically limit the bandwidth associated
with less critical traffic.
For example, if voice-over IP traffic requires a reserved amount of
bandwidth to function properly, using policy-based QoS, you can reserve
sufficient bandwidth to preserve latency characteristics critical to this type
of application. Less critical applications can also be limited to preserve
bandwidth.
The switch contains separate hardware queues on every physical port.
Each hardware queue is programmed with bandwidth-management and
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