<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE FL_Course SYSTEM "https://www.flane.de/dtd/fl_course095.dtd"><?xml-stylesheet type="text/xsl" href="https://portal.flane.ch/css/xml-course.xsl"?><course productid="2925" language="fr" source="https://portal.flane.ch/swisscom/fr/xml-course/juniper-jcos" lastchanged="2025-12-05T17:31:39+01:00" parent="https://portal.flane.ch/swisscom/fr/xml-courses"><title>Junos Class of Service</title><productcode>JCOS</productcode><vendorcode>JP</vendorcode><vendorname>Juniper Networks</vendorname><fullproductcode>JP-JCOS</fullproductcode><version>16.a</version><objective>&lt;ul&gt;
&lt;li&gt;Identify the fundamentals of CoS.&lt;/li&gt;&lt;li&gt;Identify and configure packet classification.&lt;/li&gt;&lt;li&gt;Describe and configure policers.&lt;/li&gt;&lt;li&gt;Configure firewall applications.&lt;/li&gt;&lt;li&gt;Identify and configure scheduling components.&lt;/li&gt;&lt;li&gt;Identify and configure the components of hierarchical scheduling.&lt;/li&gt;&lt;li&gt;Identify and configure rewrite rules.&lt;/li&gt;&lt;li&gt;Describe and configure CoS-based forwarding.&lt;/li&gt;&lt;li&gt;Discuss and configure an end-to-end VoIP case study.&lt;/li&gt;&lt;li&gt;Explain the high-level design for backend and compute networks.&lt;/li&gt;&lt;/ul&gt;</objective><essentials>&lt;ul&gt;
&lt;li&gt;Basic networking knowledge&lt;/li&gt;&lt;li&gt;Experience and familiarity with Junos OS&lt;/li&gt;&lt;li&gt;Familiarity with the Junos CLI&lt;/li&gt;&lt;li&gt;Completion of &lt;span class=&quot;cms-link-marked&quot;&gt;&lt;a class=&quot;fl-href-prod&quot; href=&quot;/swisscom/fr/course/juniper-ijos&quot;&gt;&lt;svg role=&quot;img&quot; aria-hidden=&quot;true&quot; focusable=&quot;false&quot; data-nosnippet class=&quot;cms-linkmark&quot;&gt;&lt;use xlink:href=&quot;/css/img/icnset-linkmarks.svg#linkmark&quot;&gt;&lt;/use&gt;&lt;/svg&gt;Introduction to the Junos Operating System &lt;span class=&quot;fl-prod-pcode&quot;&gt;(IJOS)&lt;/span&gt;&lt;/a&gt;&lt;/span&gt; course&lt;/li&gt;&lt;li&gt;Completion of the &lt;span class=&quot;cms-link-marked&quot;&gt;&lt;a class=&quot;fl-href-prod&quot; href=&quot;/swisscom/fr/course/juniper-jir&quot;&gt;&lt;svg role=&quot;img&quot; aria-hidden=&quot;true&quot; focusable=&quot;false&quot; data-nosnippet class=&quot;cms-linkmark&quot;&gt;&lt;use xlink:href=&quot;/css/img/icnset-linkmarks.svg#linkmark&quot;&gt;&lt;/use&gt;&lt;/svg&gt;Junos Intermediate Routing &lt;span class=&quot;fl-prod-pcode&quot;&gt;(JIR)&lt;/span&gt;&lt;/a&gt;&lt;/span&gt; course&lt;/li&gt;&lt;/ul&gt;</essentials><audience>&lt;p&gt;Individuals responsible for network administration who configure and administer class-of-service features on Juniper Networks&amp;reg; MX Series Universal Routers running Junos OS&lt;/p&gt;</audience><contents>&lt;ul&gt;
&lt;li&gt;Class-of-Service Overview&lt;/li&gt;&lt;li&gt;Packet Classification&lt;/li&gt;&lt;li&gt;Policing&lt;/li&gt;&lt;li&gt;Interface and Firewall Applications&lt;/li&gt;&lt;li&gt;Scheduling&lt;/li&gt;&lt;li&gt;Hierarchical Scheduling&lt;/li&gt;&lt;li&gt;Rewrite Rules&lt;/li&gt;&lt;li&gt;CoS-Based Forwarding&lt;/li&gt;&lt;li&gt;CoS VoIP Case Study&lt;/li&gt;&lt;li&gt;Congestion Control in Machine Learning Networks&lt;/li&gt;&lt;/ul&gt;</contents><outline>&lt;h5&gt;Class-of-Service Overview&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Discuss the history and evolution of CoS&lt;/li&gt;&lt;li&gt;Define the characteristics of CoS and Differentiated Services&lt;/li&gt;&lt;li&gt;Identify the CoS fields in packet headers&lt;/li&gt;&lt;li&gt;Discuss the processing of CoS on Junos platforms&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Packet Classification&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Discuss classification overview&lt;/li&gt;&lt;li&gt;Identify forwarding classes and packet loss priority&lt;/li&gt;&lt;li&gt;Configure fixed classification&lt;/li&gt;&lt;li&gt;Configure multifield classification&lt;/li&gt;&lt;li&gt;Configure behavior aggregate classification&lt;/li&gt;&lt;/ul&gt;&lt;p&gt;Lab 1: Configuring Packet Classification&lt;/p&gt;
&lt;h5&gt;Policing&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Review policing&lt;/li&gt;&lt;li&gt;Configure a single-rate two-color-policer&lt;/li&gt;&lt;li&gt;Configure tricolor marking policers&lt;/li&gt;&lt;li&gt;Configure hierarchical policers&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Interface and Firewall Applications&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Configure an interface application&lt;/li&gt;&lt;li&gt;Configure a firewall application&lt;/li&gt;&lt;/ul&gt;&lt;p&gt;Lab 2: Configuring Policers&lt;/p&gt;
&lt;h5&gt;Scheduling&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Describe scheduling components&lt;/li&gt;&lt;li&gt;Describe transmission rate&lt;/li&gt;&lt;li&gt;Describe queue priority&lt;/li&gt;&lt;li&gt;Describe delay buffers&lt;/li&gt;&lt;li&gt;Describe drop profiles&lt;/li&gt;&lt;li&gt;Configure scheduling components&lt;/li&gt;&lt;/ul&gt;&lt;p&gt;Lab 3: Configuring Schedulers&lt;/p&gt;
&lt;h5&gt;Hierarchical Scheduling&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Describe the components of hierarchical scheduling&lt;/li&gt;&lt;li&gt;Configure hierarchical scheduling&lt;/li&gt;&lt;/ul&gt;&lt;p&gt;Lab 4: Configuring Hierarchical Schedulers&lt;/p&gt;
&lt;h5&gt;Rewrite Rules&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Identify the purpose of rewriting packet headers&lt;/li&gt;&lt;li&gt;Configure and apply default and custom rewrite rules&lt;/li&gt;&lt;/ul&gt;&lt;p&gt;Lab 5: Configuring rewrite rules&lt;/p&gt;
&lt;h5&gt;CoS-Based Forwarding&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Identify the purpose of CoS-based forwarding&lt;/li&gt;&lt;li&gt;Configure CoS-based forwarding&lt;/li&gt;&lt;/ul&gt;&lt;p&gt;Lab 6: Configuring Class Based Forwarding&lt;/p&gt;
&lt;h5&gt;CoS VoIP Case Study&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Review the case study&lt;/li&gt;&lt;li&gt;Configure the ingress node&lt;/li&gt;&lt;li&gt;Configure the transit and egress nodes&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Congestion Control in Machine Learning Networks&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Describe IP services for congestion avoidance&lt;/li&gt;&lt;li&gt;Configure a lossless IP fabric for RoCEv2 traffic&lt;/li&gt;&lt;li&gt;Validate congestion avoidance parameters&lt;/li&gt;&lt;/ul&gt;</outline><objective_plain>- Identify the fundamentals of CoS.
- Identify and configure packet classification.
- Describe and configure policers.
- Configure firewall applications.
- Identify and configure scheduling components.
- Identify and configure the components of hierarchical scheduling.
- Identify and configure rewrite rules.
- Describe and configure CoS-based forwarding.
- Discuss and configure an end-to-end VoIP case study.
- Explain the high-level design for backend and compute networks.</objective_plain><essentials_plain>- Basic networking knowledge
- Experience and familiarity with Junos OS
- Familiarity with the Junos CLI
- Completion of Introduction to the Junos Operating System (IJOS) course
- Completion of the Junos Intermediate Routing (JIR) course</essentials_plain><audience_plain>Individuals responsible for network administration who configure and administer class-of-service features on Juniper Networks® MX Series Universal Routers running Junos OS</audience_plain><contents_plain>- Class-of-Service Overview
- Packet Classification
- Policing
- Interface and Firewall Applications
- Scheduling
- Hierarchical Scheduling
- Rewrite Rules
- CoS-Based Forwarding
- CoS VoIP Case Study
- Congestion Control in Machine Learning Networks</contents_plain><outline_plain>Class-of-Service Overview


- Discuss the history and evolution of CoS
- Define the characteristics of CoS and Differentiated Services
- Identify the CoS fields in packet headers
- Discuss the processing of CoS on Junos platforms
Packet Classification


- Discuss classification overview
- Identify forwarding classes and packet loss priority
- Configure fixed classification
- Configure multifield classification
- Configure behavior aggregate classification
Lab 1: Configuring Packet Classification

Policing


- Review policing
- Configure a single-rate two-color-policer
- Configure tricolor marking policers
- Configure hierarchical policers
Interface and Firewall Applications


- Configure an interface application
- Configure a firewall application
Lab 2: Configuring Policers

Scheduling


- Describe scheduling components
- Describe transmission rate
- Describe queue priority
- Describe delay buffers
- Describe drop profiles
- Configure scheduling components
Lab 3: Configuring Schedulers

Hierarchical Scheduling


- Describe the components of hierarchical scheduling
- Configure hierarchical scheduling
Lab 4: Configuring Hierarchical Schedulers

Rewrite Rules


- Identify the purpose of rewriting packet headers
- Configure and apply default and custom rewrite rules
Lab 5: Configuring rewrite rules

CoS-Based Forwarding


- Identify the purpose of CoS-based forwarding
- Configure CoS-based forwarding
Lab 6: Configuring Class Based Forwarding

CoS VoIP Case Study


- Review the case study
- Configure the ingress node
- Configure the transit and egress nodes
Congestion Control in Machine Learning Networks


- Describe IP services for congestion avoidance
- Configure a lossless IP fabric for RoCEv2 traffic
- Validate congestion avoidance parameters</outline_plain><duration unit="d" days="2">2 jours</duration><pricelist><price country="DE" currency="EUR">1500.00</price><price country="AT" currency="EUR">1500.00</price><price country="IL" currency="ILS">5210.00</price><price country="GR" currency="EUR">1200.00</price><price country="MK" currency="EUR">1200.00</price><price country="HU" currency="EUR">1200.00</price><price country="UA" currency="EUR">2250.00</price><price country="CH" currency="CHF">2000.00</price><price country="SI" currency="EUR">1500.00</price><price country="SK" currency="EUR">1500.00</price></pricelist><miles><milesvalue country="DE" vendorcurrency="JTC" vendorcurrencyname="Juniper Training Credits">1600.00</milesvalue></miles></course>