QOS v2.5 - Implementing Cisco Quality of Service

Overview Implementing Cisco Quality of Service (QOS) v2.5 provides learners with in-depth knowledge of QoS requirements, conceptual models such as best effort, IntServ, and DiffServ, and the implementation of QoS on Cisco platforms. The curriculum 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 from the individual modules to real-life scenarios. The course also gives learners design and usage rule for advanced QoS features. This gives the learners the opportunity to design and implement efficient, optimal, and trouble-free multiservice networks. _ To participate in the hands-on labs in this class, you need to bring a laptop computer with the following: Windows 7 or 8.1 or 10 is recommended. Mac OSX 10.6 or greater is supported as well. Intel Celeron or better processors are preferred. 1 GB or more of RAM Browser Requirements: Internet Explorer 10 or greater or Mozilla Firefox. (Safari and Mozilla Firefox for Mac OSX) All students are required to have administrator rights to their PCs and cannot be logged in to a domain using any Group Policies that will limit their machine's capabilities. If you do not have administrator rights to your PC, you at least need permissions to download, install, and run Cisco Any Connect Client. If you are participating in a WebEx event, it is highly recommended to take this class at a location that has bandwidth speeds at a minimum of 1 Mbps bandwidth speeds. Note: Students registering for this course will be receiving their course kit in a digital format. To be able to view your digital kit you will need to bring a laptop PC and/or a compatible iPad or Android tablet. The recommended system requirements and instructions to access the course kit content can be found at the following link: Digital Course Kit Requirements and Instructions _ Please be aware that this digital version is designed for online use, not for printing. You can print up to 10 pages only in each guide within a course. Please note that every time you click the Print button in the book, this counts as one page printed, whether or not you click OK in the Print dialog. Objectives Upon completing this course, the learner will be able to meet these overall objectives: You will be able to identify, describe, and correctly implement the appropriate QoS mechanisms required to create an effective administrative policy providing QoS Prerequisites The knowledge and skills that a learner must have before attending this course are as follows: Interconnecting Cisco Networking Devices, Part 1 and 2 (ICND1 and ICND2) Cisco Certified Networking Associate Who Should Attend The primary audience for this course is as follows: 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 enterprise or service provider environments Advanced Unified Communications Specialization Master UC Specialization Master Telepresence ATP _ The secondary audience for this course is as follows: CCIE R&S Candidates Course Outline Module 1: Introduction to QoS Lesson 1: Review Converged Networks Converged Networks Quality Issues in Converged Networks Available Bandwidth Components of Network Delay Calculating End-to-End Delay Jitter Packet Loss Summary Lesson 2: Understand QoS QoS Defined QoS Policy Defined Implement a QoS Policy Identify Network Traffic Voice Traffic Profile Videoconferencing Traffic Profile Cisco TelePresence Traffic Profile Data Traffic Profile Divide Network Traffic into Classes Define Policies for Traffic Classes QoS Mechanisms QoS Implementation Methods QoS Monitoring Methods Cisco Medianet QoS Design Summary Case Study 1-1: QoS Mechanisms Task 1: Apply QoS Mechanisms Lesson 3: Describe Best-Effort and Integrated Services Models QoS Models Best-Effort QoS Model IntServ Model Resource Reservation Protocol RSVP Components RSVP Interface Bandwidth Queuing Summary Lesson 4: Describe the Differentiated Services Model DiffServ Model DiffServ Terminology DSCP Encoding Per-Hop Behaviors Expedited Forwarding Assured Forwarding AF Drop Probability Class Selector Integration of IntServ and DiffServ Summary Lesson 5: Module Summary References Lesson 6: Module Self-Check Module 2: Implement and Monitor QoS Lesson 1: MQC Introduction Modular QoS CLI MQC Components Example: MQC Policy Configuration Class Maps Overview Match Operation in Class Maps Policy Maps Overview Service Policy Overview Hierarchical Policy Summary Lesson 2: Monitor QoS SNMP Management of QoS Describe Class-Based QoS MIB Cisco NBAR Cisco NBAR Protocol Discovery Cisco NBAR Protocol Discovery MIB NetFlow Cisco Flexible NetFlow Cisco Flexible NetFlow Integration with NBAR Class-Based Flexible NetFlow Cisco Performance Monitor Cisco Mediatrace Cisco IP SLA IP SLA: UDP Jitter Summary Lab 2-1: IP SLA Setup and QoS Baseline Measurement Task 1: Verify Network Connectivity Task 2: Create a Baseline Measurement of Network Traffic Task 3: Measure the Network Performance Under Traffic Load Task 4: QoS Measurement Lab Results Lesson 3: Define Campus AutoQoS AutoQoS AutoQoS Macros Trust Boundaries Campus AutoQoS Trust Campus AutoQoS Conditional Trust Campus AutoQoS Video Campus AutoQoS VoIP Campus AutoQoS Classify Monitoring AutoQoS in the Campus Summary Lesson 4: Define WAN AutoQoS Cisco AutoQoS for Routers WAN AutoQoS VoIP AutoQoS for the Enterprise Overview Configuring AutoQoS for the Enterprise Monitoring AutoQoS in the WAN Summary Lab 2-2: Configuring QoS with Cisco AutoQoS Task 1: Configure Cisco AutoQoS Classify on the Catalyst 2960-S Switch Task 2: Configure Cisco AutoQoS for the Enterprise on Cisco IOS Routers Task 3: Measure Network Performance with Cisco AutoQoS for the Enterprise Task 4: QoS Measurement Results Lesson 5: Module Summary References Lesson 6: Module Self-Check Module 3: Classification and Marking Lesson 1: Classification and Marking Overview Classification Marking Classification and Marking at the Data Link Layer Classification and Marking at the Network Layer Mapping QoS Marking Between OSI Layers QoS Service Class Defined Service Class Templates RFC 4594 Marking Recommendations Summary Case Study 3-1: Classification and Marking Task 1: Classification and Marking Task 2: Identify Network Locations Where Classification and Marking Should Be Applied Lesson 2: MQC for Classification and Marking MQC Classification Options Configuring Class Maps Monitoring Classification MQC Marking Options Configuring Class-Based Marking Monitoring Class-Based Marking Configuring IPV6 Classification and Marking Summary Lab 3-2: Classification and Marking Using MQC Task 1: Configure an IP Extended Access List Task 2: Configure MQC Classification Task 3: Configure Class-Based Marking Lesson 3: NBAR for Classification Cisco NBAR NBAR Application Support Configuring NBAR With MQC Classifying HTTP Traffic NBAR2 Application Grouping NBAR Port Map NBAR Custom Protocols Configuring Custom Protocols NBAR Worm Policing NBAR versus Future Worms Summary Lab 3-3: Using NBAR for Classification Task 1: Upgrade the NBAR Protocol Pack Task 2: Discover Applications and Traffic by Using NBAR Task 3: Configure Classification with NBAR Lesson 4: Use of QoS Preclassify Issues with QoS on VPNs ToS Byte Preservation QoS Preclassify Operation Configuring QoS Preclassify Monitoring QoS Preclassify Summary Lab 3-4: Configuring QoS Preclassify Task 1: Configure a GRE Tunnel Task 2: Configure QoS Preclassify Lesson 5: Campus Classification and Marking Campus Classification and Marking Overview of QoS Trust Boundaries Campus Ingress QoS Models QoS Map Tables: Marking Internal DSCP Applying Campus Switch Classification and Marking Monitoring Campus Classification and Marking Summary Lab 3-5: Campus Classification and Marking Using MQC Task 1: Configure a Trust Boundary Task 2: Configure CoS-to-DSCP Mapping Task 3: Configure Class-Based Marking Task 4: Verify QoS Markings Task 5: Adjust Router Classification and Marking Policy Lesson 6: Module Summary References Lesson 7: Module Self-Check Module 4: Congestion Management Lesson 1: Queuing Introduction Congestion and Queuing Queuing Components Hardware Queue Size Congestion on Logical Interfaces Queuing Algorithms FIFO Queuing Priority Queuing Round-Robin Queuing WRR Queuing DRR Queuing Summary Lesson 2: Configure WFQ Weighted Fair Queuing WFQ Classification WFQ Scheduling WFQ Drop Operation Benefits and Drawbacks of WFQ Configuring WFQ Monitoring WFQ Summary Lab 4-1: Configuring Fair Queuing Task 1: Configure Fair Queuing Task 2: Measure Network Performance with Fair Queuing Task 3: Adjust the Fair Queuing Configuration Task 4: Measure Network Performance with Fair Queuing Configured with 256 Dynamic Queues Task 5: QoS Measurement Lab Results Lesson 3: Configure CBWFQ and LLQ Class-Based Weighted Fair Queuing CBWFQ Architecture Benefits and Drawbacks of CBWFQ Configuring CBWFQ Low Latency Queuing LLQ Architecture Configuring LLQ Monitoring LLQ-CBWFQ Summary Lab 4-2: Configuring LLQ-CBWFQ Task 1: Configure a CBWFQ Policy with LLQ Task 2: Apply and Monitor CBWFQ with LLQ Operation Task 3: Measure Network Performance with CBWFQ Task 4: QoS Measurement Lab Results Lesson 4: Configure Campus Congestion Management Campus Queuing Catalyst Switch Hardware Queue Nomenclature Queue Mapping WRR on Campus Switches WRR Bandwidth and Buffer Settings SRR on Campus Switches SRR Common and Reserved Buffers Configuring Ingress Queuing on Cisco Catalyst 3750 Series Switches Configuring Egress Queuing on Cisco Catalyst 3750 Series Switches Monitoring Congestion Management On Cisco Catalyst 3750 Series Switches Summary Lab 4-3: Configuring Campus-Based Queuing Mechanisms Task 1: Review Egress Queuing Defaults Task 2: Configure Global Egress Queuing Parameters Task 3: Configure and Monitor Egress Queuing Lesson 5: Module Summary References Lesson 6: Module Self-Check Module 5: Congestion Avoidance Lesson 1: Congestion Avoidance Introduction TCP Behavior Congestion and TCP Example: TCP Congestion Control Algorithms Managing Congestion with Tail Drop Impact of Tail Drop Random Early Detection RED Profiles and Modes TCP Behavior Before and After RED Summary Lesson 2: Configure Class-Based WRED Weighted Random Early Detection Class-Based WRED WRED Building Blocks WRED Profiles IP Precedence-Based WRED DSCP-Based WRED Configure CBWRED Changing WRED Sensitivity to Bursts Example: DSCP-Based WRED Monitoring CBWRED Summary Case Study 5-1: WRED Traffic Profiles Task 1: Create WRED Traffic Profiles Lesson 3: Configure ECN Explicit Congestion Notification ECN Field ECN and WRED ECN Operation Configuring ECN Monitoring ECN Summary Lab 5-2: Configuring DSCP-Based WRED Task 1: Configure DSCP-Based WRED Task 2: Monitor DSCP-Based WRED Task 3: Configure DSCP-Based CBWRED with ECN Task 4: Monitor DSCP-Based WRED with ECN Lesson 4: Describe Campus-Based Congestion Avoidance Congestion Avoidance in the Campus Weighted Tail Drop Configuring WTD Thresholds on the Cisco Catalyst 3750 Series Switch WRED on Campus Switches Dynamic Buffer Limiting Summary Lab 5-3: Configuring WTD Thresholds Task 1: Configure and Monitor Weighted Tail Drop Lesson 5: Module Summary References Lesson 6: Module Self-Check Module 6: Traffic Policing and Shaping Lesson 1: Traffic Policing and Shaping Overview Traffic Policing and Traffic Shaping Policing and Shaping Use Cases Policing vs. Shaping Single Token Bucket Model Single Token Bucket Class-Based Policing Dual Token Bucket Class-Based Policing Dual-Rate Token Bucket Class-Based Policing Class-Based Traffic Shaping Summary Lesson 2: Configure Class-Based Policing Class-Based Policing Configuring Class-Based Policing Example: Single-Rate Single Token Policer Example: Single-Rate Dual Token Policer Example: Dual-Rate Policer Monitoring Class-Based Policing Summary Lesson 3: Campus Policing Campus Policing Overview QoS Map Tables: Policing Applying Campus Switch Policing Campus Aggregate Policing Campus Microflow Policing Summary Lab 6-1: Configuring Class-Based Policing Task 1: Configure Single Token Bucket Class-Based Policing Task 2: Monitor Single Token Bucket Class-Based Policing Task 3: Configure Dual Token Bucket Class-Based Policing Task 4: Monitor Dual Token Bucket Class-Based Policing Lesson 4: Configure Class-Based Shaping Class-Based Shaping Shaping Methods Configuring Class-Based Shaping Example: Shaping Configuration Example: Hierarchical Shaping Monitoring Class-Based Shaping Summary Lab 6-2: Configuring Class-Based Shaping Task 1: Migrate Traffic to the MPLS Service Task 2: Configure Class-Based Shaping Task 3: Configure Hierarchical Shaping Lesson 5: Configure Class-Based Shaping on Frame Relay Interfaces Frame Relay Refresher Frame Relay Congestion Control Frame Relay Congestion Adaptation FECN-to-BECN Propagation Configuring Adaptive Class-Based Shaping Monitoring FRTS Summary Lesson 6: Configure Frame Relay Voice-Adaptive Traffic Shaping and Fragmentation Frame Relay Voice-Adaptive Traffic Shaping and Fragmentation Benefits of Frame Relay Voice-Adaptive Traffic Shaping and Fragmentation Frame Relay Voice-Adaptive Traffic Shaping and Fragmentation Operation Configuring Frame Relay Voice-Adaptive Traffic Shaping and Fragmentation Monitoring Frame Relay Voice-Adaptive Traffic Shaping and Fragmentation Summary Lesson 7: Module Summary References Lesson 8: Module Self-Check Module 7: Link Efficiency Mechanisms Lesson 1: Link Efficiency Mechanisms Overview Link Efficiency Mechanisms Layer 2 Payload Compression Header Compression Large Packet "Freeze Out" Serialization Delay Link Fragmentation and Interleaving Fragment Size Recommendations for Voice Summary Lesson 2: Configure Class-Based Header Compression Header Compression Class-Based TCP Header Compression Example: Class-Based TCP Header Compression Configuration Class-Based RTP Header Compression Example: Class-Based RTP Header Compression Configuring Class-Based Header Compression Monitoring Class-Based Header Compression Summary Lab 7-1: Configuring Class-Based Header Compression Task 1: Configure Class-Based Header Compression Task 2: Monitor Class-Based Header Compression Lesson 3: Configure LFI LFI Options Configuring MLP with Interleaving Monitoring MLP Interleaving FRF.12 Frame Relay Fragmentation Configuring FRF.12 Frame Relay Fragmentation Monitoring FRF.12 Frame Relay Fragmentation Summary Lab 7-2: Configuring LFI Task 1: Configure LFI Task 2: Monitor LFI Lesson 4: Module Summary References Lesson 5: Module Self-Check Module 8: Deploying End-to-End QoS Lesson 1: Apply Best Practices for QoS Policy Design Optimally Deploying QoS Within the Enterprise Strategically Defining QoS Objectives Cisco Modified RFC 4594 Marking Recommendations and Class Expansion Understanding Application Service-Level Requirements QoS Requirements for Control Plane Traffic Control Plane Policing Data Plane Policing Classification and Marking Best Practices Policing and Markdown Best Practices Queuing and Dropping Best Practices Link Efficiency Mechanisms Best Practices Summary Lesson 2: End-to-End QoS Deployments Deploying End-to-End QoS Enterprise Campus QoS Guidelines Campus QoS Deployment Steps and Options Branch Router QoS Guidelines WAN Edge QoS Design Considerations Enterprise Network with Layer 2 Service Enterprise Network with Layer 3 Service QoS Service Level Agreements QoS Implications of Layer 3 Service Offerings Enterprise-to-Service Provider QoS Class Mapping Re-Marking DSCP at SP MPLS Edge Summary Lab 8-1: Mapping Enterprise QoS Policy to the Service Provider Policy Task 1: Adjust QoS Markings to Match the Service Provider QoS Policy Task 2: Re-mark Inbound Traffic from the Service Provider Lesson 3: Module Summary References Lesson 4: Module Self-Check