Networking Demo


This online instructor led training course is 1 part of 2 necessary training courses to prepare network engineers to take the JNCIS-ENT certification and is aimed at networking professionals with beginner to intermediate knowledge of switching implementations in Junos. In this course students will learn key topics including virtual LANs (VLANs), the Spanning Tree Protocol (STP), port and device security features, and High Availability (HA), and more!

Exam Number: JN0-348


Wesley Arnold

Course Information

Skills Learned

  • Benefits of implementing switched LANs
  • Bridging concepts and operations
  • Configuring Layer 2 switches
  • Access and trunk port modes
  • Configure and monitor VLANs
  • VLAN concepts
  • Advantages of RSTP and STP
  • Bridge protocol data unit (BPDU), loop, and root protection features configuration
  • Firewall filter support for EX Series switches
  • Configure and monitor High Availability (HA) features

Who Should Attend This Course

  • Individuals seeking the JNCIS-ENT certification should take this training course, plus the JNCIS-Route
  • Network technicians responsible for configuring and monitoring devices running the Junos OS


  • Basic networking knowledge and an understanding of the Open Systems Interconnection (OSI) reference model
  • Basic knowledge of TCP/IP protocol suite
  • JNCIA-Junos

Course Outline

Course Introduction
Layer 2 Switching

  • Implementing switched LANs
  • Bridging concepts and operations
  • Considerations for switched LANs
  • Enterprise Layer 2 switching
  • Layer 2 switching operations
  • Ethernet switching table


  • VLAN concpets
  • Access and trunk port modes
  • Monitoring and configuring VLANs
  • Voice and native VLAN concepts
  • Inter-VLAN routing operations
  • Configuring and monitoring inter-VLAN routing

Spanning Tree

  • When Spanning Tree is required
  • STP and RSTP operations
  • Monitoring RSTP
  • BPDUs, Loops and Root protection
  • Configure and monitor MSTP

Port Security

  • Port security features
  • Configure and monitor port security features

Device security and firewall filters

  • Storm control
  • EX Series firewall filter
  • Implement and monitor firewall filters

Virtual Chassis

  • Concepts and components of Virtual Chassis
  • Virtual Chassis operation details
  • Virtual Chassis implementaion and verification

High Availability

  • Features of HA
  • Configuration and monitoring of HA features


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