- Course overview
- Course details
- Prerequisites
Course overview
This two-day course provides students with advanced class-of-service (CoS) knowledge and configuration examples. The course begins with an overview of CoS before going into classification, policing, scheduling, and rewriting. The course then covers classbased forwarding and finishes with a case study. Through demonstrations and hands-on labs, students will gain experience in configuring and verifying Junos CoS features. This course is based on the Junos operating system Release 16.2R1.6.
Course details
Day 1
Module 1: CoS Overview
• CoS History and Evolution
• CoS and DiffServ
• CoS Fields in Packet Headers
• CoS Processing
Module 2: Packet Classification
• Classification Overview
• Forwarding Classes and Packet Loss Priority
• Fixed Classification
• Multifield Classification
• Behavior Aggregate Classification
LAB 1: Configuring Packet Classification
Module 3: Policing
• Policing Overview
• Single-Rate Two-Color Policer
• Tricolor Marking Policers
• Hierarchical Policers
• Application—Directly on an Interface
• Application—Within a Firewall Filter
LAB 2: Configuring Policers
Module 4: Scheduling
• Scheduling Overview
• Transmission Rate
• Queue Priority
• Delay Buffers
• Drop Profiles and Drop Profile Maps
• Scheduling Configuration
LAB 3: Configuring Schedulers
Day 2
Module 5: Hierarchical Scheduling
• Hierarchical Scheduling Overview
• Scheduler Modes
• Hierarchical Scheduling Levels
• Throughput Example
• Remaining Traffic
• Queue Properties in a Hierarchical Scheduling Context
• Putting It All Together
LAB 4: Configuring Hierarchical Schedulers
Module 6: Rewrite Rules
• Packet Header Rewrite Overview
• Rewrite Rules and Tables
• Rewrite Combinations
LAB 5: Configuring Rewrite Rules
Module 7: CoS-Based Forwarding
• CBF Overview
• CBF Configuration
LAB 6: Configuring CBF
Module 8: Case Study
• VoIP Case Study Overview
• VoIP Case Study: Ingress Node
• VoIP Case Study: Transit and Egress Nodes
LAB 7: Case Study
Appendix A: CoS Processing on M Series, T Series, and MX Series Devices
• M Series and T Series Architecture
• M Series and T Series CoS Packet Handling
• IQ2 PIC CoS Packet Handling
• MX Series (DPC and MPC/MIC) Architecture and CoS Packet Handling
Prerequisites
Students should attend the Introduction to the Junos Operating System (IJOS) course and the Junos Intermediate Routing (JIR) course, or have equivalent experience prior to attending this class. General knowledge of CoS concepts is also helpful.
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Course : Junos Class of Service
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request for : Junos Class of Service
