Understanding Qos - Cisco ONS 15454 SDH Configuration Manual

Configuring Quality of Service
This chapter describes the quality of service (QoS) features built into your ML-Series card and how to
map QoS scheduling at both the system and interface levels.
This chapter contains the following major sections:
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The ML-Series card employs the Cisco IOS Modular QoS command-line interface (CLI), known as the
MQC. For more information on general MQC configuration, refer to the following Cisco IOS
documents:
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Understanding QoS

QoS is the ability of the network to provide better or special treatment to a set of services to the detriment
of less critical services. The ML-Series card uses QoS to dynamically allocate transmission bandwidth
for the different services it multiplexes onto the SONET/SDH circuit. Through QoS, you can configure
the ML-Series card to provide different levels of treatment to the different services. The different levels
are defined through the service elements of bandwidth, including loss and delay. A service-level
agreement (SLA) is a guaranteed level of these service elements.
Understanding QoS, page 14-1
ML-Series QoS, page 14-4
QoS on Cisco Proprietary RPR, page 14-10
Configuring QoS, page 14-12
Monitoring and Verifying QoS Configuration, page 14-17
QoS Configuration Examples, page 14-18
Understanding Multicast QoS and Priority Multicast Queuing, page 14-24
Configuring Multicast Priority Queuing QoS, page 14-25
QoS not Configured on Egress, page 14-27
ML-Series Egress Bandwidth Example, page 14-27
Understanding CoS-Based Packet Statistics, page 14-29
Configuring CoS-Based Packet Statistics, page 14-29
Understanding IP SLA, page 14-31
Cisco IOS Quality of Service Solutions Configuration Guide, Release 12.2
Cisco IOS Quality of Service Solutions Command Reference, Release 12.2
Cisco ONS 15454 and Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration Guide, R8.0
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