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Module 8: Quality of Service

Module Overview
8.1 Quality of Service Requirements
8.1.1 Quality of Service defined
8.1.2 Loss
8.1.3 Delay or latency
8.1.4 Delay variation or jitter
8.1.5 Network availability
8.1.6 Provisioning
8.1.7 Quality of Service requirements for data
8.1.8 Quality of Service requirements for voice
8.1.9 Quality of Service requirements for video
8.2 Quality of Service Mechanisms
8.2.1 Quality of Service mechanisms
8.2.2 Best-effort service
8.2.3 Integrated services model
8.2.4 Differentiated services model
8.2.5 Traffic marking
8.2.6 Modular QoS command-line interface (CLI)
8.2.7 Using the class-map command to define traffic classes
8.2.8 Defining the QoS policy – the policy-map
8.2.9 Applying the policy to an interface – the service-policy
8.3 Classification at the Access Layer
8.3.1 Classification at the access layer
8.3.2 Trusting the CoS
8.3.3 Configuring CoS trust using the IOS 
8.3.4 Assigning CoS on a per-port basis
8.3.5 Re-writing the CoS
8.3.6 Using a MAC ACL to assign a DSCP value
8.3.7 Configuring DSCP using a MAC ACL
8.3.8 Using an IP ACL to define the DSCP or precedence
8.4 Policing and Marking
8.4.1 Policing and marking
8.4.2 Individual policers
8.4.3 Aggregate policers
8.4.4 Token bucket
8.4.5 Classification and policing using Committed Access Rate (CAR)
8.4.6 Configuring the policed DSCP map
8.4.7 Configuring classification using CAR
8.4.8 Configuring policing using CAR
8.5 Scheduling
8.5.1 Scheduling
8.5.2 FIFO queue
8.5.3 Weighted Fair Queuing (WFQ)
8.5.4 WFQ and IP precedence
8.5.5 Class Based Weighted Fair Queuing (CBWFQ)
8.5.6 Configuring CBWFQ
8.5.7 CBWFQ bandwidth allocation
8.6 Congestion Avoidance
8.6.1 Congestion avoidance
8.6.2 Weighted random early detection (WRED)
8.6.3 Configuring WRED on a physical interface
8.6.4 Verifying WRED configuration
8.6.5 Configuring WRED with CBWFQ
8.6.6 Low Latency Queuing (LLQ)
8.6.7 Configuring LLQ
8.7 Traffic Shaping
8.7.1 Traffic shaping overview
8.7.2 Generic Traffic Shaping (GTS)
8.7.3 Configuring GTS for an interface
8.7.4 GTS for Frame Relay networks
8.7.5 Configuring GTS for Frame Relay networks
8.7.6 Verifying GTS configuration
8.8 QoS Using Low Speed Links
8.8.1 QoS using low speed links
8.8.2 Link efficiency mechanisms
8.8.3 Link fragmentation and interleaving
8.8.4 Link fragmentation and interleaving (LFI): Multilink PPP
8.8.5 Compressed Real-Time Protocol (cRTP)
8.8.6 Configuring cRTP
8.9 Hands-on Lab Exercises
8.9.1 Classifying traffic using CoS at the access layer
8.9.2 Introduction to the modular QoS command-line interface
8.9.3 QoS classification and policing using CAR
8.9.4 Weighted Fair Queuing
8.9.5 Configuring WRED on an interface
8.9.6 Configuring WRED with CBWFQ
8.9.7 Configuring LLQ
8.9.8 Configuring GTS
8.9.9 QoS manually configured FRTS
8.9.10 QoS dynamically configured FRTS
8.9.11 Link fragmentation and interleaving
8.9.12 QoS cRTP
Module Summary

Module Quiz

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