COURSE OBJECTIVE:
• Understand the history and evolution of CoS.• Identify the CoS fields in various packet headers.• List the CoS processing stages on devices running the Junos OS.• Identify the default CoS settings on devices running the Junos OS.• Configure and verify behavior aggregate (BA) and multifield (MF) classification.• Configure and verify two-color and tricolor marking policers.• Configure and verify schedulers and their components.• Configure and verify the multiple levels of hierarchical schedulers.• Configure and verify packet header rewriting.• Configure and verify class-based forwarding.• Create a CoS configuration based on a set of design requirements.
TARGET AUDIENCE:
This course is intended for network administrators who configure and administer class-of-service features on MX routers running the Junos OS.
COURSE PREREQUISITES:
• A strong base of networking fundamentals• Experience and familiarity with the Junos OS• Familiarity with the Junos command-line interface (CLI)• Completion of the Introduction to the Junos Operating System (IJOS) course• Completion of the Junos Intermediate Routing (JIR) course
COURSE CONTENT:
DAY 1Course IntroductionCoS Overview• CoS History and Evolution• CoS and DiffServ• CoS Fields in Packet Headers• CoS Processing Packet Classification• Classification Overview• Forwarding Classes and Packet Loss Priority• Fixed Classification• Multifield Classification• Behavior Aggregate ClassificationLab 1: Configuring Packet ClassificationPolicing• Policing Overview• Single-Rate Two-Color Policer• Tricolor Marking Policers• Hierarchical Policers• Application—Directly on an Interface• Application—Within a Firewall FilterLab 2: Configuring PolicersScheduling• Scheduling Overview• Transmission Rate• Queue Priority• Delay Buffers• Drop Profiles and Drop Profile Maps• Scheduling ConfigurationLab 3: Configuring SchedulersDAY 2 Hierarchical Scheduling• Hierarchical Scheduling Overview• Scheduler Modes• Hierarchical Scheduling Levels• Throughput Example• Remaining Traffic• Queue Properties in a Hierarchical Scheduling Context• Putting It All TogetherLab 4—Configuring Hierarchical SchedulingRewrite Rules• Packet Header Rewrite Overview• Rewrite Rules and Tables• Rewrite CombinationsLab 5: Configuring Rewrite RulesCoS-Based Forwarding• CBF Overview• CBF ConfigurationLab 6: Configuring CBF Case Study• VoIP Case Study Overview• VoIP Case Study: Ingress Node• VoIP Case Study: Transit and Egress Nodes
FOLLOW ON COURSES:
Not available. Please contact.