1. QoS Overview
1.1. QoS: Tuning Bandwidth, Delay, Jitter, and Loss
1.1.1. Bandwidth
1.1.2. Delay
1.1.3. Jitter
1.1.4. Loss
1.2. Traffic Characteristics of Voice, Video, and Data
1.2.1. Voice Traffic Characteristics
1.2.2. Video Traffic Characteristics
1.3. Data Traffic Characteristics
1.3.1. IP Data Basics
1.3.2. Data Bandwidth Considerations
1.3.3. Data Delay Considerations
1.3.4. Data Jitter Considerations
1.3.5. Data Loss Considerations
1.3.6. Comparing Voice, Video, and Data: Summary
2. QoS Tools and Architectures
2.1. Introduction to IOS QoS Tools
2.1.1. Classification and Marking
2.1.2. Queuing
2.1.3. Shaping and Policing
2.1.4. Congestion Avoidance
2.1.5. Link Efficiency
2.1.6. Call Admission Control and RSVP
2.1.7. Management Tools
2.2. The Good-Old Common Sense QoS Model
2.2.1. GOCS Flow-Based QoS
2.2.2. GOCS Class-Based QoS
2.3. The Differentiated Services QoS Model
2.3.1. DiffServ Specifications and Terminology
2.3.2. DiffServ Per-Hop Behaviors
3. Classification and Marking
3.1. Classification and Marking Concepts
3.1.1. Classification
3.1.2. Marking
3.1.3. Classification and Marking Design Choices
3.2. Classification and Marking Tools
3.2.1. Class-Based Marking (CB Marking)
3.2.2. Committed Access Rate (CAR)
3.2.3. Policy-Based Routing (PBR)
3.2.4. VoIP Dial Peer
4. Congestion Management
4.1. Queuing Concepts
4.1.1. Output Queues, TX Rings, and TX Queues
4.1.2. Queuing on Interfaces Versus Subinterfaces and Virtual Circuits (VCs)
4.2. Queuing Tools
4.2.1. FIFO Queuing
4.2.2. Priority Queuing
4.2.3. Custom Queuing
4.2.4. Weighted Fair Queuing (WFQ)
4.2.5. Class-Based WFQ (CBWFQ)
4.2.6. Low Latency Queuing (LLQ)
4.2.7. IP RTP Priority
5. Traffic Policing and Shaping
5.1. Traffic-Policing and Traffic-Shaping Concepts
5.1.1. When and Where to Use Shaping and Policing
5.1.2. How Shaping Works
5.1.3. How Policing Works
5.1.4. Traffic-Shaping Tools
5.1.5. Traffic-Policing Tools
6. Congestion Avoidance Through Drop Policies
6.1. Congestion-Avoidance Concepts and Random Early Detection (RED)
6.1.1. TCP and UDP Reactions to Packet Loss
6.1.2. Tail Drop, Global Synchronization, and TCP Starvation
6.1.3. Random Early Detection (RED)
6.2. Weighted RED (WRED)
6.2.1. How WRED Weights Packets
6.2.2. WRED and Queuing
6.2.3. WRED Configuration
6.2.4. WRED Summary
6.3. Flow-Based WRED (FRED)
6.3.1. FRED Configuration
7. Link-Efficiency Tools
7.1. Payload and Header Compression
7.1.1. Payload Compression
7.1.2. Header Compression
7.1.3. Payload Compression Configuration
7.1.4. TCP and RTP Header Compression Configuration
7.2. Link Fragmentation and Interleaving
7.2.1. Multilink PPP LFI
7.2.2. Frame Relay LFI Using FRF.12
7.2.3. Multilink PPP Interleaving Configuration
7.2.4. Frame Relay Fragmentation Configuration
8. Call Admission Control and QoS Signaling
8.1. Call Admission Control Overview
8.1.1. Call Rerouting Alternatives
8.1.2. Bandwidth Engineering
8.1.3. CAC Mechanisms
8.1.4. CAC Mechanism Evaluation Criteria
8.2. Local Voice CAC
8.2.1. Physical DS0 Limitation
8.2.2. Max-Connections
8.2.3. Voice over Frame Relay—Voice Bandwidth
8.2.4. Trunk Conditioning 8.2.5. Local Voice Busyout
8.3. Measurement-Based Voice CAC
8.3.1. Service Assurance Agents
8.3.2. Advanced Voice Busyout
8.3.3. PSTN Fallback
8.4. Resource-Based CAC
8.4.1. Resource Availability Indication
8.4.2. Cisco CallManager Resource-Based CAC
8.4.3. Gatekeeper Zone Bandwidth
8.4.4. Integrated Services / Resource Reservation Protocol
9. Management Tools and QoS Design
9.1. QoS Management Tools
9.1.1. QoS Device Manager
9.1.2. QoS Policy Manager
9.1.3. Service Assurance Agent
9.1.4. Internetwork Performance Monitor
9.1.5. Service Management Solution
9.1.6. QoS Management Tool Summary
9.2. QoS Design for the Cisco QoS Exams
9.2.1. Four-Step QoS Design Process
9.2.2. QoS Design Guidelines for Voice and Video
10. LAN QoS 10.1. The Need for QoS on the LAN
10.1.1. Buffer Overflow (Overrun)
10.1.2. Marking and Classification
10.1.3. Layer 3-to-Layer 2 Classification Mapping
10.1.4. Layer 2 Queues
10.1.5. Drop Thresholds
10.1.6. Trust Boundries
10.2. Cisco Catalyst Switch QoS Features
10.2.1. Catalyst 6500 QoS Features
10.2.2. QoS Flow on the Catalyst 6500
10.2.3. Catalyst 6500 QoS Summary
10.2.4. Cisco Catalyst 4500/4000 QoS Features
10.2.5. Cisco Catalyst 3550 QoS Features
10.2.6. Cisco Catalyst 3524 QoS Features
10.3. QoS Configurations on Catalyst Switches
10.3.1. Configuration of a Catalyst Switch Using Catalyst OS
10.3.2. Configuration of a Catalyst Switch Using IOS
