Chapter 1 - Network RequirementsNetwork Requirements
IIN and Cisco SONA Framework
Intelligent Information Network
Cisco SONA Framework
Cisco SONA Layers
Cisco Network Models
Cisco Enterprise Architecture
Cisco Hierarchical Network Model
Example: Enterprise Network
Traffic Conditions in a Converged Network
Network Traffic Mix and Requirements
Example: Integrated Services
Chapter 1 Review
Chapter 2 - Describe Cisco VoIPImplementations
Introducing VoIP Implementations
Benefits of Packet Telephony Networks
Packet Telephony Components
Two Basic Methods for Voice over IP
Analog Interfaces
Digital Interfaces
Stages of a Phone Call
Distributed vs. Centralized Call Control
Distributed Call Control
Centralized Call Control
Section 1 Review
Digitizing and Packetizing Voice
Converting Analog to Digital
Analog-to-Digital Conversion Steps
Converting Digital to Analog
Digital-to-Analog Conversion Steps
The Nyquist Theorem
Example: Sampling of Voice
Quantization
Quantization Techniques
Example: Quantization of Voice
Digital Voice Encoding
Compression Bandwidth Requirements
Voice Codec Characteristics
Mean Opinion Score
What is a DSP?
Example: DSP Used for Conferencing
Example: DSP Used for Transcoding
Section 2 Review
Encapsulating Voice Packets for Transport
Voice Transport in Circuit-Based Networks
Voice Transport in IP Networks
Explaining Protocols Used in Voice Encapsulation
Which Protocols to Use for VoIP?
Voice Encapsulation Examples
Reducing Header Overhead
Voice Encapsulation Overhead
RTP Header Compression
When to Use RTP Header Compression
Section 3 Review
Calculating Bandwidth Requirements
Factors Influencing Bandwidth
Bandwidth Implications of Codecs
How the Packetization Period Impacts VoIP Packet Size and Rate
VoIP Packet Size and Packet Rate Examples
Data Link Overhead
Data Link Overhead is Different per Link
Security and Tunneling Overhead
Extra Headers in Security and Tunneling Protocols
Example: VoIP over IPsec VPN
Calculating the Total Bandwidth for a VoIP Call
Total Bandwidth Required for a VoIP Call
Total Bandwidth Calculation Procedure
Quick Bandwidth Calculation
Effects of VAD on Bandwidth
VAD Characteristics
VAD Bandwidth-Reduction Examples
Section 4 Review
Implementing Voice Support in Enterprise Networks
Enterprise Voice Implementations
Voice Gateway Functions on a Cisco Router
Cisco Unified CallManager Functions
Example: Signaling and Call Processing
Enterprise IP Telephony Deployment Models
Example: Single Site
Example: Multisite with Centralized Call Processing
Example: Clustering over WAN
Identifying Voice Commands in IOS Configurations
Identifying Voice Commands in Cisco IOS VoIP Configurations
What is CAC?
Example: CAC Deployment
Demo - Commands to Create a Route Pattern for VoIP Traffic
Section 5 Review
Chapter 3 - Introduction to IP QoSIntroducing QoS
Converged Networks Quality Issues
Available Bandwidth
Lack of Bandwidth
Bandwidth Availability
Efficient Use of Available Bandwidth
End-to-End Delay
Types of Delay
The Impact of Delay on Quality
Ways to Reduce Delay
Efficient Use of Ways to Reduce Delay
Packet Loss
Impact of Packet Loss
Ways to Prevent Packet Loss
Packet Loss Solution
QoS Defined
Implementing QoS
The Requirements of Different Traffic Types
Identify Traffic and Its Requirements
The Requirements of Different Traffic Types (Cont.)
QoS Policy
Section 1 Review
Identifying Models for Implementing QoS
QoS Models
Best Effort Model
Benefits and Drawbacks of the Best-Effort Model
IntServ Model
IntServ Functions
Benefits and Drawbacks of the IntServ Model
RSVP and the IntServ QoS Model
Resource Reservation Protocol
RSVP Operation
RSVP in Action
DiffServ Model
Benefits and Drawbacks of the DiffServ Model
Section 2 Review
Identifying Methods for Implementing QoS
Methods for Implementing QoS Policy
Legacy CLI
Legacy CLI Usage Guidelines
Legacy CLI Example
Modular QoS CLI
Modular QoS CLI Components
Class Maps
Configuring Class Maps
ACLs for Traffic Classification
Policy Maps
Configuring Policy Maps
Service Policy
Attaching Service Policies to Interfaces
MQC Example
Basic Verification Commands
AutoQoS
Cisco AutoQoS
The Features of Cisco AutoQoS
Cisco AutoQoS Usage Guidelines
Cisco AutoQoS Example
SDM QoS Wizard
QoS Features
Getting Started with Cisco SDM
Create QoS Policy
QoS Wizard
Interface Selection
QoS Policy Generation
QoS Wizard (Cont.)
Command Delivery Status
QoS Status
QoS Implementation Methods Compared
Demo - Creating Manual Pieces through Modular QoS
Section 3 Review
Chapter 4 - Implement the DiffServ QoS ModelIntroducing Classification and Marking
Classification
Marking
Classification and Marking at the Link Layer
Classification and Marking in the LAN with IEEE 802.1Q
Classification and Marking in the Enterprise
DiffServ Model
IP Precedence and DSCP Compatibility
Per Hop Behaviors
EF PHB
AF PHB
DSCP Summary
Mapping CoS to Network Layer QoS
QoS Service Class Defined
Example: Defining QoS Service Class
Implementing QoS Policy Using a QoS Service Class
Example: Application Service Classes
Trust Boundaries
Trust Boundaries: Classify Where?
Trust Boundaries: Mark Where?
Section 1 Review
Using NBAR for Classification
Network Based Application Recognition
NBAR Application Support
Packet Description Language Module
Protocol Discovery
NBAR Protocol Discovery
Configuring and Monitoring Protocol Discovery
Configuring NBAR for Static Protocols
Example
Configuring Stateful NBAR for Dynamic Protocols
Example
Demo -Working with Modular QoS and NBAR
Section 2 Review
Introducing Queuing Implementations
Congestion and Queuing
Speed Mismatch
Aggregation
Queuing Algorithms
Definition
Congestion and Queuing (Cont.)
Queuing Algorithms (Cont.)
FIFO
Priority Queuing
Round Robin
Weighted Round Robin
Router Queuing Components
The Software Queue
The Hardware Queue
Congestion on Software Interfaces
Section 3 Review
Configuring WFQ
Weighted Fair Queuing
WFQ Architecture and Benefits
WFQ Architecture
WFQ Classification
WFQ Insertion and Drop Policy
Benefits and Drawbacks of WFQ
Configuring and Monitoring WFQ
Configuring WFQ (Cont.)
Additional WFQ Configuration Parameters
Monitoring WFQ
Section 4 Review
Configuring CBWFQ and LLQ
Describing Advanced Queuing Mechanisms
Queuing Methods Combined
Class-Based Weighted Fair Queuing
CBWFQ Architecture and Benefits
CBWFQ Architecture
Classification
Scheduling
Available Bandwidth
CBWFQ Benefits and Drawbacks
Configuring and Monitoring CBWFQ
Configuring CBWFQ
Example of CBWFQ
Monitoring CBWFQ
Low Latency Queuing
LLQ Architecture and Benefits
LLQ Architecture
LLQ Benefits
Configuring and Monitoring LLQ
Configuring LLQ
Monitoring LLQ
Demo - LLQ Configuration
Section 5 Review
Introducing Congestion Avoidance
Managing Interface Congestion with Tail Drop
Tail Drop Limitations
TCP Synchronization
TCP Delay, Jitter, and Starvation
Random Early Detection
RED Profiles
RED Modes
TCP Traffic Before and After RED
Weighted Random Early Detection
WRED Building Blocks
Class-Based WRED
Configuring CBWRED
Changing the WRED Traffic Profile
CBWFQ Using IP Precedence with CBWRED
WRED Profiles: DSCP-Based WRED (Assured Forwarding)
Configuring DSCP-Based CBWRED
Changing the WRED Traffic Profile
CBWRED Using DSCP with CBWFQ
Monitoring CBWRED
Demo - CBWRED Using DSCP with CBWFQ
Section 6 Review
Introducing Traffic Policing and Shaping
Traffic Policing and Shaping Overview
Why Use Policing?
Why Use Shaping?
Why Use Traffic Conditioners?
Traffic Policing Example
Traffic Policing and Shaping Example
Policing vs. Shaping
Measuring Traffic Rates
Single Token Bucket
Single Token Bucket Class-Based Policing
Cisco IOS Traffic Policing and Shaping Mechanisms
Cisco IOS Traffic Policing Mechanism
Cisco IOS Traffic-Shaping Mechanisms
Applying Traffic Conditioners
Applying Rate Limiting
Section 7 Review
Understanding WAN Link Efficiency Mechanisms
Link Efficiency Mechanisms Overview
Compression
Link Efficiency Mechanisms
Layer 2 Payload Compression
Layer 2 Payload Compression Results
Header Compression
Header Compression Results
Large Packets "Freeze Out" Voice on Slow WAN Links
Link Fragmentation and Interleaving
Applying Link Efficiency Mechanisms
Example
Section 8 Review
Implementing QoS Preclassify
Virtual Private Networks
VPN Types
Encryption Overview
VPN Protocols
Implementing QoS with Preclassification
QoS Preclassify
QoS Preclassify Applications
GRE Tunneling
IPsec AH
IPsec ESP
QoS Pre-classification Deployment Options
Configuring QoS Preclassify
QoS Preclassify: Example
Section 9 Review
Deploying End-to-End QoS
QoS SLAs
Enterprise Network with Traditional Layer 2 Service
Enterprise Network with IP Service
Know the SLA Offered by Your Service Provider
Typical SLA Requirements for Voice
Deploying End-to-End QoS
Enterprise Campus QoS Implementations
Campus QoS General Guidelines
Campus Access / Distribution Layer QoS Implementation
WAN Edge QoS Implementations
Traffic Leaving Enterprise Network
Traffic Leaving Service Provider Network
Managed Customer Edge with Three Service Classes
WAN Edge Design
What Is CoPP?
Cisco Router Planes
CoPP Deployment
CoPP Example
Section 10 Review
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Chapter 5 - Implement Cisco AutoQoSIntroducing Cisco AutoQoS
Cisco AutoQoS
Enterprise QoS Challenges
Cisco AutoQoS: Automating the Delivery of Network QoS
Cisco AutoQoS Evolution
Cisco AutoQoS: Automating Elements of QoS Deployment
Protocol Discovery with NBAR
Cisco AutoQoS Enterprise: Router Deployment Restrictions
AutoQoS on Enterprise: Deployment Restrictions
Cisco AutoQoS: Router Design Considerations
Configuring Cisco AutoQoS: Router Prerequisites
Deploying AutoQoS for Enterprise: Two-Phase
Configuring AutoQoS: Traffic Profiling with Autodiscovery
Configuring AutoQoS: QoS Policies
Cisco AutoQoS for Enterprise: Router Configuration Example
Deploying Cisco AutoQoS VoIP on Switches
AutoQoS on Catalyst 2950 (EI) and 3550 Switches
Cisco AutoQoS VoIP Switch Configuration Example
Verifying AutoQoS
How to Verify Cisco AutoQoS
Monitoring AutoQoS
Section 1 Review
Mitigating Common Cisco AutoQoS Issues
Automation with Cisco AutoQoS
QoS Mechanisms Must Meet Enterprise QoS Requirements
DiffServ QoS Mechanisms Enabled by Cisco AutoQoS
Automated Cisco AutoQoS DiffServ Class Provisioning
Interpreting AutoQoS Configurations
Interpreting Generated Cisco AutoQoS Configuration
Interpreting the show auto qos Command Output
Modifying the Active AutoQoS Configuration with MQC
When Is Manual Modification of AutoQoS Configuration Required?
Classification
Policy
Section 2 Review
Chapter 6 - Implement Wireless ScalabilityImplementing WLAN QoS
WLAN and LAN
The Need for WLAN QoS
The Need for QoS Wireless
WLAN QoS Description
WLAN QoS Queuing Overview
WLAN QoS RF Backoff Timing
Lightweight Access Point Split MAC Architecture
QoS WLAN Deployment Issues
QoS Description
WLAN QoS Implementation
QoS Implementation Overview
QoS Implementation- Ethernet to Controller
Feature: QoS Packet-Marking Translations
From Access Point to Wireless Client
From Client to Access Point
Traffic from Access Point to Controller
From Controller to Ethernet Switch
QoS Implementation
WLAN QoS Configuration
QoS-Configurable Profiles
Configuring WLAN IDs for QoS
Section 1 Review
Introducing 802.1x
The Need for WLAN Security
Security Methods Authentication and Encryption
WLAN Security Issues
WEP Attacks
Overview of WLAN Security
802.11 WEP
802.11 Open Authentication
802.11 Shared Key Authentication
Cisco Enhanced 802.11 WEP Security
Enhanced 802.11 Security
Encryption-TKIP and MIC
Encryption-AES
802.1x Overview
802.1x Authentication Overview
802.1x Authentication Key Benefits
802.1x and EAP Authentication Protocols
Components Required for 802.1x Authentication
EAP-Cisco Wireless
Cisco LEAP
Cisco LEAP Authentication
EAP-FAST
EAP-FAST: Flexible Authentication via Secure Tunneling
EAP-FAST Authentication
EAP-TLS
EAP-TLS Authentication
EAP-PEAP
EAP-PEAP Authentication
Wi-Fi Protected Access
802.11i and WPA Authentication and Key Management Overview
WPA Issues
IEEE 802.11i-WPA2
Wireless Intrusion Detection Systems
WPA and WPA2 Modes
WPA2 Issues
Section 2 Review
Configuring Encryption and Authentication on Lightweight Access Points
Open Authentication
Static WEP Key Authentication
Static WEP Key
WPA Preshared Key
Web Authentication
802.1x Authentication
WPA with 802.1x
WPA2
Section 3 Review
Managing WLANs
Business Drivers
Cisco Unified Wireless Network
Cisco WLAN Implementation
Describing WLAN Components
Wireless LAN Components
Comparison of WLAN Solutions
The WLAN Solution Engine
CiscoWorks WLSE Software Features
CiscoWorks WLSE Key Benefits
CiscoWorks WLSE and CiscoWorks WLSE Express
Simplified CiscoWorks WLSE Express Setup
CiscoWorks WLSE Configuration Template
CiscoWorks WLSE Benefits
The Cisco Wireless Control System
Cisco WCS Overview
Cisco WCS Location Tracking Options
Cisco WCS Feature Set Overview
Cisco WCS Base Software Features
Cisco WCS Location Software Features
Cisco WCS System Requirements
Cisco WCS Network Summary Page
Cisco WCS Controller Summary Page
Wireless Location Appliance
Cisco Wireless Location Appliance Overview
Cisco Wireless Location Appliance Architecture
Cisco Wireless Location Appliance Applications
Cisco WCS Configuration Example
Cisco WCS Server Login
Cisco WCS Network Summary
Adding a Controller
Configure > Controller > Add Controller > Go
Configure > Access Points
Cisco WCS Maps
Monitor > Maps > New Campus > Go
Adding a New Building
Rogue AP Detection
Detecting and Locating Rogue Access Points
Rogue Access Points Alarms
Rogue Access Points Location
Section 4 Review
Course Closure
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