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  JUNOS Troubleshooting (JTNOC) 
  Course Fees: $3000 (Training Credits Accepted)  
  Course Duration: 4 Days  
  Course Code: EDU-JUN-JTNOC  
  Course Schedule: Click for Schedule and Registrationschd  
  Juniper Certification: N/A  

Juniper Troubleshooting Course Overview

Course Overview

This four-day course is designed to provide introductory troubleshooting skills for engineers in a network operations center (NOC) environment. Key topics within this course include troubleshooting methodology, troubleshooting tools, hardware monitoring and troubleshooting, interface monitoring and troubleshooting, troubleshooting the data plane and control plane on devices running the Junos operating system, securing the control plane, staging and acceptance methodology, troubleshooting routing protocols, monitoring the network, troubleshooting vMX devices, working with JTAC, and using Automated Support and Prevention (ASAP). This course uses virtual MX devices in the lab and is based on Junos OS release 17.3R1.10

Junos Troubleshooting in the NOC (JTNOC) is an introductory-level course.

The course content is aimed at operators of devices running the Junos OS in a NOC environment. These operators include network engineers, administrators, support personnel, and reseller support personnel.

Students should have basic networking knowledge and an understanding of the Open Systems Interconnection (OSI) reference model and theTCP/IP protocol suite. Students should also attend the Introduction to the Junos Operating System (IJOS) course, or have equivalent experience prior to attending this class.



  • Software
  • Junos OS
  • Support
  • Routing
  • Switching
  • EX Series
  • SRX Series
  • M Series
  • MX Series
  • PTX Series
  • T Series
  • Service Provider Routing and Switching Track
  • Enterprise Routing and Switching Track


  • Reduce the time it takes to identify and isolate the root cause of an issue impacting your network.
  • Gain familiarity with Junos products as they pertain to roubleshooting.
  • Become familiar with online resources valuable to Junos troubleshooting.
  • Gain familiarity with Junos tools used in troubleshooting.
  • Identify and isolate hardware issues.
  • Troubleshoot problems with the control plane.
  • Describe control plane protection features.
  • Troubleshoot problems with interfaces and other data plane components.
  • Describe the staging and acceptance methodology.
  • Troubleshoot routing protocols.
  • Describe how to monitor your network with SNMP, RMON, Junos Telemetry interface, Junos Traffic Vision (formerly known as Jflow), and port mirroring.
  • Monitor and troubleshoot vMX routers.
  • Become familiar with JTAC procedures.
  • Become familiar with Automated Support and Prevention tools in Junos Space.


Day 1

1- Course Introduction
2- Troubleshooting as a Process

  • Before You Begin
  • The Troubleshooting Process
  • Challenging Network Issues

3- Junos Product Families

  • The Junos OS
  • Control Plane and Data Plane
  • Field-Replaceable Units
  • Junos Product Families

Lab 1: Identifying Hardware Components

4- Troubleshooting Toolkit

  • Troubleshooting Tools
  • Best Practices

Lab 2: Monitoring Tools and Establishing a Baseline


Day 2

5- Hardware and Environmental Conditions

  • Hardware Troubleshooting Overview
  • Memory and Storage
  • Boot Monitoring
  • Hardware-Related System Logs
  • Chassis and Environmental Monitoring

Lab 3: Monitoring Hardware and Environmental Conditions

6- Control Plane

  • Control Plane Review
  • System and User Processes
  • Monitoring Routing Tables and Protocols
  • Monitoring Bridging
  • Monitoring the Address Resolution Protocol

Lab 4: Control Plane Monitoring and Troubleshooting

7- Control Plane Protection

  • Protection Overview
  • DDOS Protection
  • Loopback Filter

Lab 5:Monitoring and Verifying DDOS Protection


8- Data Plane- Interfaces

  • Interface Properties
  • General Interface Troubleshooting
  • Ethernet Interface Troubleshooting

Lab 6: Monitoring and Troubleshooting Ethernet Interfaces


Day 3

9- Data Plane- Other Components

  • Definition of a Data Plane Problem
  • Data Plane Components
  • Data Plane Forwarding
  • Load-Balancing Behaviour
  • Firewall Filters and Policers
  • Data Plane Troubleshooting Case Study

Lab 7:  Isolate and Troubleshoot PFE Issues


10- Staging and Acceptance Testing

  • Physical Inspection and Power-on
  • General Sysems Checks
  • Interface Testing

11- Troubleshooting Routing Protocols

  • Troubleshooting OSPF
  • Troubleshooting BGP
  • Troubleshooting Routing Loops and Remote Oscillation

Lab 8: Troubleshooting Routing Protocols


12- High Availability

  • High Availability Overview
  • Graceful routing Engine Switchover
  • Graceful Restart
  • Nonstop Active Routing and Bridging
  • Unified In-Service Software Upgrade


Day 4


13- Network Monitoring

  • SNMP
  • RMON
  • Telemetry
  • Flow Monitoring

Lab 9: Monitoring the Network

14- vMX Troubleshooting

  • vMX Overview
  • Troubleshooting

Lab 10: Monitoring vMX


15- JTAC Procedures

  • Opening a Support Case
  • Customer Support Tools
  • The Content of a PR
  • Transferring Files to JTAC

16- Automated Support and Prevention

  • Overview
  • Service Now
  • Service Insight

Lab 11: Automated Support and Prevention

A- Interface Troubleshooting

  • Interface Troubleshooting Chart
  • Troubleshooting Various Interface Types



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