Microsoft Skill Up Cards only €1,500 each!

Save up to €4,145 per delegate.

skill up card image

AJEX - Advanced Junos Enterprise Switching Using Enhanced Layer 2 Software

4.6 out of 5 rating

Jump to dates


2 Days

12 CPD hours

About this course

This course benefits individuals responsible for configuring and monitoring EX Series switches using Junos ELS.


After successfully completing this course, you should be able to:
Restrict traffic flow within a VLAN.
Manage dynamic VLAN registration.
Tunnel Layer 2 traffic through Ethernet networks.
Review the purpose and operations of a spanning tree.
Implement multiple spanning-tree instances in a network.
Implement one or more spanning-tree instances for a VLAN.
List the benefits of implementing end-user authentication.
Explain the operations of various access control features.
Configure and monitor various access control features.
Describe processing considerations when multiple authentication and access control features are enabled.
Describe some common IP telephony deployment scenarios.
Describe features that facilitate IP telephony deployments.
Configure and monitor features used in IP telephony deployments.
Explain the purpose and basic operations of CoS.
Describe CoS features used in Layer 2 networks.
Configure and monitor CoS in a Layer 2 network.
Describe a basic troubleshooting method.
List common issues that disrupt network operations.
Identify tools used in network troubleshooting.
Use available tools to resolve network issues.


This two-day course provides detailed coverage of virtual LAN (VLAN) operations.

Chapter 1: Course Introduction
  • Course Introduction
Chapter 2: Troubleshooting as a Process
  • Before You Begin
  • The Troubleshooting Process
  • Challenging Network Issues
  • The Troubleshooting Process Lab
Chapter 3: Junos Product Families
  • The Junos OS
  • Control Plane and Data Plane
  • Field-Replaceable Units
  • Junos Product Families
  • Lab: Identifying Hardware Components
Chapter 4: Troubleshooting Toolkit
  • Troubleshooting Tools
  • Best Practices
  • Lab: Using Monitoring Tools and Establishing a Baseline
Chapter 5: Hardware and Environmental Conditions
  • Hardware Troubleshooting Overview
  • Memory and Storage
  • Boot Monitoring
  • Hardware-Related System Logs
  • Chassis and Environmental Monitoring
  • Lab: Monitoring Hardware and Environmental Conditions
Chapter 6: Control Plane
  • Control Plane Review
  • System and User Processes
  • Monitoring Routing Tables and Protocols
  • Monitoring Bridging
  • Monitoring the Address Resolution Protocol
  • Lab: Control Plane Monitoring and Troubleshooting
Chapter 7: Control Plane Protection
  • Protection Overview
  • DDOS Protection
  • Loopback Filter
  • Lab: Control Plane Monitoring and Troubleshooting
Chapter 8: Data Plane Interfaces
  • Interface Properties
  • General Interface Troubleshooting
  • Ethernet Interface Troubleshooting
  • Lab: Monitoring and Troubleshooting Ethernet Interfaces
Chapter 9: Data Plane Other Components
  • Definition of a Data Plane Problem
  • Data Plane Components
  • Data Plane Forwarding
  • Load-Balancing Behavior
  • Firewall Filters and Policers
  • Data Plane Troubleshooting Case Study
  • Lab: Isolate and Troubleshoot PFE Issues
Chapter 10: Staging and Acceptance Testing
  • Initial Inspection and Power-on
  • General System Checks
  • Interface Testing
Chapter 11: Troubleshooting Routing Protocols
  • Troubleshooting OSPF
  • Troubleshooting BGP
  • Troubleshooting Routing Loops and Route Oscillation
  • Lab: Troubleshooting Routing Protocols
Chapter 12: High Availability
  • High Availability Overview
  • Graceful Routing Engine Switchover
  • Graceful Restart
  • Nonstop Active Routing and Bridging
  • Unified In-Service Software Upgrade
Chapter 13: Network Monitoring
  • SNMP
  • RMON
  • Telemetry
  • Flow Monitoring
  • Lab: Monitoring the Network
Chapter 14: vMX Troubleshooting
  • vMX Overview
  • Troubleshooting
  • Lab: Monitoring vMX
Chapter 15: JTAC Procedures
  • Opening a Support Case
  • Customer Support Tools
  • The Content of a PR
  • Transferring Files to JTAC
Chapter 16: Automated Support and Prevention
  • Overview
  • Service Now
  • Service Insight
  • Lab: Automated Support and Prevention
Additional course details:

Nexus Humans AJEX - Advanced Junos Enterprise Switching Using Enhanced Layer 2 Software training program is a workshop that presents an invigorating mix of sessions, lessons, and masterclasses meticulously crafted to propel your learning expedition forward.

This immersive bootcamp-style experience boasts interactive lectures, hands-on labs, and collaborative hackathons, all strategically designed to fortify fundamental concepts.

Guided by seasoned coaches, each session offers priceless insights and practical skills crucial for honing your expertise. Whether you're stepping into the realm of professional skills or a seasoned professional, this comprehensive course ensures you're equipped with the knowledge and prowess necessary for success.

While we feel this is the best course for the AJEX - Advanced Junos Enterprise Switching Using Enhanced Layer 2 Software course and one of our Top 10 we encourage you to read the course outline to make sure it is the right content for you.

Additionally, private sessions, closed classes or dedicated events are available both live online and at our training centres in Dublin and London, as well as at your offices anywhere in the UK, Ireland or across EMEA.

Training Insurance Included!

When you organise training, we understand that there is a risk that some people may fall ill, become unavailable. To mitigate the risk we include training insurance for each delegate enrolled on our public schedule, they are welcome to sit on the same Public class within 6 months at no charge, if the case arises.

What people say about us

Find out more about this course

Interested in alternative dates? Would like to book a private session of this course for your company? Or for any other queries please simply fill out the form below.