|
Implementing Cisco Quality of Service 2.2 (QOS)
5 days instructor-Led
Course Overview
Implementing Cisco Quality of Service (QoS) v2.2 provides learners with in-depth knowledge of quality of service (QoS) requirements, conceptual models such as Best Effort, Integrated Services (IntServ) and Differentiated Services (DiffServ), and the implementation of QoS on Cisco IOS platforms. This five-day course covers the theory of QoS, design issues, and configuration of various QoS mechanisms to facilitate the creation of effective administrative policies providing QoS.
Case studies and lab exercises included in the course help learners to apply the concepts mastered in individual modules to real-life scenarios. The course also gives learners design and usage rules for various advanced QoS features and the integration of QoS with underlying Layer 2 QoS mechanisms. This gives learners the opportunity to design and implement efficient, optimal, and trouble-free multiservice networks. Upon completion of this course, the learner will be able to identify, describe, and correctly implement the appropriate QoS mechanisms that are required to create an effective administrative policy providing QoS. This course helps students prepare for QoS Exam #642-642.
Who will benefit from this course?
Pre- and post-sales technical engineers responsible for designing, implementing, or troubleshooting networks
Network architects responsible for designing multiservice networks to carry voice, video, and data traffic in an enterprise or service provider environment
CCIP & CCVP candidatesPrerequisites:
Before attending this course, students need to have:
Completion of ICND1 and ICND2 or CiscoCCNA certification
BGP or equivalent is recommended because some BGP background is assumed
Course Outline
Module 1: Introduction to QoS
Lesson 1: Understanding the Need for QoS
Converged Networks
Converged Networks Quality Issues
Available Bandwidth
End-to-End Delay
Packet Loss
Lesson 2: Understanding QoS
Qos Defined
QoS for Converged Networks
QoS Requirements
QoS Traffic Classes
QoS Policy
Lesson 3: Implementing QoS
Methods for Implementing QoS Policy
Legacy CLI
Modular QoS CLI
AutoQoS VoIP and Enterprise
QoS Implementation Methods Compared
QoS Policy Manager
Network MIBs for Monitoring QoS
MIBs for Managing QoS
Module 2: The Building Blocks of QoS
Lesson 1: Identifying Models for Implementing QoS
QoS Models
Best-Effort Model
IntServ Model
DiffServ Model
Lesson 2: Understanding the Integrated Services Model
Integrated Services Model
RSVP Components
RSVP Interface Bandwidth Queuing
Enabling RSVP on an Interface
IntServ and DiffServ Integration
Lesson 3: Understanding the Differentiated Services Model
Differentiated Services Model
DSCP Encoding
Per-Hop Behaviors
Backward Compatibility Using the Class Selector
Lesson 4: Identifying QoS MEchanisms
QoS Mechanisms
Classification
Marking
Congestion Management
Congestion Avoidance
Policing and Shaping
Link Efficiency Mechanisms
Link Fragmentation and Interleaving
Applying QoS to Input and Output Interfaces
Lesson 5: Understanding QoS in the Life of a Packet
QoS and Packets
Life of a High-Priority (VoIP) Packet
Life of a Low-Priority (FTP) Packet
Module 3: Introduction to Modular QoS CLI and AutoQoS
Lesson 1: Introducing Modular QoS CLI
Modular QoS CLI
Modular QoS CLI Components
Class Maps
Configuring and Monitoring Class Maps
Policy Maps
Configuring and Monitoring Policy Maps
Service Policy
Attaching Service Policies to Interfaces
Lesson 2: Introducing Cisco AutoQoS VoIP
Cisco AutoQoS VoIP
AutoQoS VoIp: Router Platforms
AutoQoS VoIP: Switch Platforms
Configuring AutoQoS VoIP
Monitoring AutoQoS VoIP
Automation with Cisco AutoQoS
Lesson 3: Introducing Cisco AutoQoS Enterprise
Cisco AutoQoS Enterprise
AutoQoS Enterprise Router Platforms
Configuring AutoQoS Enterprise
Monitoring AutoQoS Enterprise
Module 4: Classification and Marking
Lesson 1: Understanding Classification and Marking
Classification
Classification and Marking at the Data-Link Layer
Classification and Marking at the Network Layer
Marking
Mapping CoS to Network Layer QoS
QoS Service Defined
Implementing a QoS Policy Using a QoS Service Class
Trust Boundaries
Lesson 2: Using UQC for Classification
MQC Classification Options
Configuring Classification with MQC
Configuring Classification Using Input Interface
Configuring Classification Using CoS
Configuring Classification Using Access Lists
Configuring Classification Using IP Precedence
Configuring Classification Using DSCP
Configuring Classification Using a UDP Port Range
Monitoring Class Maps
Lesson 3: Using MQC for Class-Based Marking
Class-Based Marking Overview
MQC Marking Options
Configuring Class-Based Marking
Configuring CoS Marking
Configuring IP Precedence Marking
Configuring IP DSCP Marking
Monitoring Class-Based Marking
Lesson 4: Using NBAR for Classification
Network-Based Application Recognition
NBAR Application Support
Packet Description Language Module
Protocol Discovery
Configuring and Monitoring Protocol Discovery
Configuring NBAR for Static Protocols
Configuring NBAR for Stateful Protocols
Lesson 5: Configuring QoS Preclassify
Implementing QoS with Preclassify
QoS Preclassify Applications
QoS Preclassify Deployment Options
Configuring QoS Preclassify
Monitoring QoS Preclassify
Lesson 6: Configuring QoS Policy Propagation Through BGP
QoS Policy Propagation Through BGP
QoS and BGP Interaction
Cisco Express Forwarding
QPPB Configuration Tasks
Configuring QPPB
Lesson 7: Configuring LAN Classification and Marking
LAN-Based Classification and Marking
QoS Trust Boundaries
LAN Classification and Marking Platforms
Configuring LAN-Based Classification and Marking
Monitoring LAN-Based Classification and Marking
Module 5: Congestion Management
Lesson 1: Introducing Queuing
Congestion and Queuing
Queuing Algorithms
First In First Out
Priority Queuing
Round Robin
Weighted Round Robin
Deficit Round Robin
Lesson 2: Understanding Queuing Implementations
Queuing Components
Hardware Queue (TxQ) Size
Congestion on Software Interfaces
Queuing Implementations in Cisco IOS
Lesson 3: Configuring FIFO and WFQ
FIFO Queuing
Weighted Fair Queuing
WFQ Classification
WFQ Insertion and Drop Policy
WFQ Scheduling
Benefits and Drawbacks of WFQ
Configuring WFQ
Monitoring WFQ
Lesson 4: Configuring CBWFQ and LLQ
CBWFQ and LLQ
Class-Based Weighted Fair Queuing
CBWFQ Architecture
CBWFQ Benefits
Configuring and Monitoring CBWFQ
Low-Latency Queuing
LLQ Architecture
LLQ Benefits
Configuring and Monitoring LLQ
Lesson 5: Configuring LAN Congestion Management
Queuing on Catalyst Switches
Weighted Round Robin
Configuring CoS-to-Queue Mappings for PQ on Catalyst 2950 Switches
Configuring WRR on Catalyst 2950
Monitoring Queuing on Catalyst 2950 Switches
Module 6: Congestion Avoidance
Lesson 1: Introducing Congestion Avoidance
Behavior of TCP Senders and Receivers
Congestion and TCP
Managing Interface Congestion with Tail Drop
Tail Drop Limitations
Lesson 2: Introducing RED
Random Early Detection
RED Profiles
RED Modes
TCP Traffic Before and After RED
Applying Congestion Avoidance
Lesson 3: Configuring Class-Based Weighted RED
Weighted Random Early Detection
WRED Profiles
Configuring CB-WRED
Configuring DSCP-Based CB-WRED
Monitoring CB-WRED
Lesson 4: Configuring Explicit Congestion Notification
Explicit Congestion Notification
ECN Field Defined
ECN and WRED
Configuring ECN-Enabled WRED
Monitoring ECN-Enabled WRED
Module 7: Traffic Policing and Shaping
Lesson 1: Understanding Traffic Policing and Shaping
Traffic Policing and Shaping Overview
Why Use Traffic Conditioners?
Policing vs. Shaping
Measuring Traffic Rates
Single Token Bucket Class-Based Policing
Dual Token Bucket Class-Based Policing
Dual-Rate Token Bucket Class-Based Policing
Class-Based Traffic Shaping
Cisco IOS Traffic Policing and Shaping Mechanisms
Applying Traffic Conditioners
Lesson 2: Configuring Class-Based Policing
Class-Based Policing Overview
Configuring Single-Rate Class-Based Policing
Configuring Dual-Rate Class-Based Policing
Configuring Percentage-Based Class-Based Policing
Monitoring Class-Based Policing
Lesson 3: Configuring Class-Based Shaping
Class-Based Shaping Overview
Traffic Shaping Methods
Configuring Class-Based Shaping
Monitoring Class-Based Shaping
Lesson 4: Configuring Class-Based Shaping on Frame Relay Interfaces
Frame Relay Refresher
Frame Relay Congestion Control
Frame Relay Congestion Adaptation
FECN-to-BECN Propagation
Configuring Frame Relay Adaptive Class-Based Shaping
Monitoring MQC-Based Frame Relay Traffic Shaping
MQC-Based Frame Relay Traffic Shaping Example on Multipoint Main Interface
Lesson 5: Frame Relay Voice-Adaptive Traffic Shaping and Fragmentation
Frame Rely Voice-Adaptive Traffic Shapingand Fragmentation
Benefits in Deploying FR-VATS
Prerequisites for Deploying FR-VATS
Supported Platforms
Frame Relay Voice-Adaptive Traffic Shaping and Fragmentation Operation
Configuring the Frame Relay Voice-Adaptive Feature
Monitoring the Frame Relay Voice-Adaptive Feature
Module 8: Link Efficiency Mechanisms
Lesson 1: Understanding Link Efficiency Mechanisms
Link Efficiency Mechanisms Overview
L2 Payload Compression
Header Compression
Large Packets Freeze Out Voice on Slow WAN Links
Link Fragmentation and Interleaving
Applying Link Efficiency Mechanisms
Lesson 2: Configuring Class-Based Header Compression
Header Compression Overview
Class-Based TCP Header Compression
Class-Based RTP Header Compression
Configuring Class-Based Header Compression
Monitoring Class-Based Header Compression
Lesson 3: Configuring Link Fragmentation and Interleaving
Fragmentation Options
Serialization Delay and Fragment Sizing
Configuring MLP with Interleaving
Monitoring MLP with Interleaving
FRF.12 Frame Relay Fragmentation
Configuring FRF.12 Frame Relay Fragmentation
Monitoring FRF.12 Frame Relay Fragmentation
Module 9: QoS Best Practices
Lesson 1: Understanding Traffic Classification Best Practices
QoS Best Practices
Voice, Video, and Data QoS Requirements
QoS Requirements Summary
Traffic Classification
Enterprise to Service Provider QoS Class Mapping
Lesson 2: Deploying End-to-End QoS
QoS Service Level Agreements
Deploying End-to-End Qos
Enterprise Campus QoS Implementations
WAN Edge (CE/PE) QoS Implementations
Service Provider Backbone QoS Implementations
Lesson 3: Providing QoS for Security
Business Security Threat
Increasing Occurrence of Network Attacks
The Impact of an Internet Work Attack
QoS Tools and Tactics for Security
Control Plane Policing
Data Plane Policing
NBAR Known-Worm Policing
Integrating Security Through QoS
