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Junos Enterprise Switching Skills Camp (JEX, AJEX)

Build your intermediate and advanced Juniper switching skills in this convenient, skills-focused course.

GK# 7206

Course Overview


We combined two authorized Juniper courses, Juniper Enterprise Switching (JEX) and Advanced Juniper Enterprise Switching (AJEX), to create this convenient, four-day course in which you will build your intermediate and advanced Junos enterprise switching skills. You will gain hands-on experience with the features of EX 4300 Series Ethernet switches, including:

  • Virtual LANs (VLANs)
  • Spanning Tree Protocol (STP), Multiple Spanning Tree Protocol (MSTP), and VLAN Spanning Tree Protocol (VSTP)
  • Authentication and access control for Layer 2 networks
  • Port and device security features
  • High availability (HA) features
  • IP telephony features
  • Class of Service (CoS)
  • Monitoring and troubleshooting


  • Delivery Format:
  • Date:
  • Location:
  • Access Period:


What You'll Learn

  • Benefits of implementing switched LANs
  • Transparent bridging concepts and operations
  • Terms and design considerations for switched LANs
  • Enterprise platforms that support Layer 2 switching
  • Configure interfaces for Layer 2 switching operations
  • Display and interpret the Ethernet switching table
  • VLAN concepts, including Voice and native VLANs
  • Access and trunk port modes
  • Configure and monitor VLANs
  • Inter-VLAN routing operation, configuration, and monitoring
  • Implement filter-based VLAN assignments and restrict traffic flow within a VLAN
  • Manage dynamic VLAN registration
  • Purpose and operations of a spanning tree
  • Configure and monitor STP and Rapid STP (RSTP) operations
  • Bridge protocol data unit (BPDU), Loop, and Root protection features configuration
  • Configure and monitor port security features and storm control
  • Implement multiple spanning-tree instances in a network
  • Implement one or more spanning-tree instances for a VLAN
  • Firewall filter support for EX Series Ethernet switches
  • Implement and monitor the effects of a firewall filter
  • Configure and monitor HA features
  • Implement and operate a virtual chassis with multiple EX4300 switches
  • Tunnel Layer 2 traffic through Ethernet networks
  • Benefits of implementing end-user authentication
  • Configure and monitor access control features
  • Processing considerations when multiple authentication and access control features are enabled
  • Configure and monitor features used in IP telephony deployments
  • Configure and monitor CoS in a Layer 2 network
  • Basic troubleshooting methods and tools
  • Common issues that disrupt network operations


Viewing outline for:

Classroom Live Outline

1. Layer 2 Switching

  • Ethernet Bridging Basics
  • Terminology and Design Considerations
  • Enterprise Switching Platforms
  • Enabling and Monitoring Layer 2 Switching Operations
  • EZ Setup
  • Junos Space Network Director Overview
  • Junos Spave Network Director Discovery 

2. Virtual Networks

  • VLANs
  • Configuring and Monitoring VLANs
  • Configuring and Deploying Network Director VLAN and Port Profiles
  • Voice VLAN
  • Native VLAN
  • Routed VLAN Interfaces

3. Spanning Tree

  • Spanning Tree Protocol (STP)
  • Rapid Spanning Tree Protocol (RSTP)
  • Configuring and Monitoring STP and RSTP
  • Protection Features
    • BPDU Protection
    • Loop Protection
    • Root Protection

4. Port Security

  • MAC Limiting
  • Persistent MAC Learning
  • DHCP Snooping
  • Dynamic ARP Inspection
  • IP Source Guard
  • MACsec

5. Device Security and Firewall Filters

  • Storm Control
  • Firewall Filters

6. Virtual Chassis

  • Configuring and Monitoring a Virtual Chassis

7. High Availability (HA) Features

  • HA Networks
  • Link Aggregation Groups
  • Redundant Trunk Groups
  • Graceful Routing Engine Switchover
  • Nonstop Active Routing
  • Nonstop Bridging

8. Advanced Ethernet Switching

  • VLANs
    • Assigning User Traffic to VLANs
    • Restricting User Traffic within a VLAN
  • Automating VLAN Administration
  • Tunneling Layer 2 Traffic

9. Advanced Spanning Tree

  • Multiple Spanning Tree Protocol (MSTP)
  • VLAN Spanning Tree Protocol (VSTP)

10. Authentication and Access Control

  • Access Control Features
    • 802.1X
    • Captive Portal
  • Authentication Processing

11. Deploying IP Telephony Features

  • Deployment Scenarios
  • IP Telephony Features
    • Power over Ethernet
    • Neighbor Discovery
    • Voice VLAN
  • Case Study

12. Class of Service

  • Implementing Class of Service
  • Case Study

13. Monitoring and Troubleshooting Layer 2 Networks

  • Monitoring and Troubleshooting Tools
  • Troubleshooting Case Studies
    • Reachability Issues
    • Network Congestion


Viewing labs for:

Classroom Live Labs

Lab 1: Implementing Layer 2 Switches

Lab 2: Implementing Virtual Networks

Lab 3: Implementing Spanning Tree

Lab 4: Implementing Port Security

Lab 5: Implementing Storm Control and Firewall Filters

Lab 6: Implementing High Availability Features

Lab 7: Advanced Ethernet Switching

Lab 8: Implementing MSTP and VSTP

Lab 9: Authentication and Access Control

Lab 10: Deploying IP Telephony Features

Lab 11: Class of Service

Lab 12: Monitoring and Troubleshooting



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

Who Should Attend


Network technicians responsible for configuring and monitoring EX4300 Series switches

Vendor Credits


This course can be purchased with Juniper Training Credits (JTCs).

Follow-On Courses

Course Delivery

This course is available in the following formats:

Classroom Live

Receive face-to-face instruction at one of our training center locations.

Duration: 4 day

Virtual Classroom Live

Experience expert-led online training from the convenience of your home, office or anywhere with an internet connection.

Duration: 4 day

Request this course in a different delivery format.