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Network Administration: Quality of Service
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Network Administration: Quality of
Service
This section provides information for configuring Quality of Service (QoS).
It contains the following topics:
• Overview
• Global Settings
• QoS Mapping
• QoS Statistics
Overview
The QoS feature is used to optimize network performance. It provides
classification of incoming traffic into traffic classes, based on one or more
attributes, including:
–
Device configuration
–
Ingress interface
–
Packet contents
QoS includes the following features:
•
Traffic Classification
— Classifies each incoming packet, as belonging to
a specific traffic flow, based on the packet contents and/or interface. The
classification is done by an ACL (Access Control List), and only traffic
that meets the ACL criteria is subject to classification.
•
Assignment to Hardware Queues
— Assigns incoming packets to
forwarding queues. Packets are sent to a particular queue for handling as a
function of the traffic class to which they belong.
•
Other Traffic Class-Handling Attribute
— Applies QoS mechanisms to
various classes, including bandwidth management.
