Junos Enterprise Switching (JEX)

This course benefits individuals responsible for configuring and monitoring EX Series switches running Junos Enhanced Layer 2 Software (ELS) 

• List the benefits of implementing switched LANs. 

• Describe transparent bridging concepts and operations. 

• Describe terms and design considerations for switched LANs. 

• List enterprise platforms that support Layer 2 switching. 

• Configure interfaces for Layer 2 switching operations. 

• Display and interpret the Ethernet switching table. 

• Explain the concept of a VLAN. 

• Describe access and trunk port modes. 

• Configure and monitor VLANs. 

• Describe voice VLAN and native VLAN concepts. 

• Explain inter-VLAN routing operations. 

• Configure and monitor inter-VLAN routing. 

• Explain when a spanning tree is required. 

• Describe STP and Rapid Spanning Tree Protocol (RSTP) operations. 

• List some advantages of using RSTP over STP. 

• Configure and monitor RSTP. 

• Describe the bridge protocol data unit (BPDU), loop, and root protection features. 

• Configure and monitor the BPDU, loop, and root protection features. 

• List and describe various port security features. 

• Configure and monitor port security features. 

• Describe the storm control feature. 

• Configure and monitor storm control. 

• Describe firewall filter support for EX Series Ethernet switches. 

• Implement and monitor the effects of a firewall filter. 

• List and describe some features that promote high availability. 

• Configure and monitor high availability features. 

• Describe the basic concepts and operational details of a virtual chassis. 

• Implement a virtual chassis with multiple EX4300 switches. 

• Explain the concepts of Multiple Spanning Tree Protocol (MSTP). 

• Configure and monitor MSTP. 

• Discover, configure, and troubleshoot EX Series switches using Junos Space Network Director.

Day 1

Course Introduction

Layer 2 Switching 

• Describe Ethernet bridging basic 

• Configure and monitor Layer 2 switching operations

Lab 1: Implementing Layer 2 Switching

Switching Design Considerations 

• Explain switching terminologies and design considerations 

• Describe various Enterprise Switching platforms 

Implement VLANs 

• Define VLANs 

• Create VLANs 

• Monitor VLANs 

Implement VLAN Features 

• Describe voice LAN concepts and operations 

• Describe native LAN concepts and operations 

• Describe and implement IRB interfaces 

Lab 2: Implementing Virtual Networks 

Spanning Tree Overview 

• Explain the operations of STP 

• Explain the operations of RSTP 

Deploy Spanning Tree 

• Configure STP and RSTP 

• Monitor STP and RSTP 

Spanning Tree Protection Features 

• Explain and configure BPDU protection on spanning tree 

• Explain and configure loop protection on spanning tree 

• Explain and configure root protection on spanning tree 

Lab 3: Implementing Spanning Tree 

Day 2

LAGs and RTGs 

• Describe link aggregation groups (LAGs) and redundant trunk groups (RTGs) 

• Configure and monitor LAG and RTG 

Lab 4: Implementing LAGs and RTGs 10 Storm Control 

• Describe storm control features 

• Configure and monitor storm control features

Layer 2 Firewall Filters 

• Describe firewall filter support for EX Series switches 

• Implement and monitor the effects of a firewall filter 

Lab 5: Implementing Storm Control and Firewall Filters 

Port Security—MAC Limiting, MAC Learning, and MACsec 

• Describe MAC limiting, MAC learning, and MACsec 

• Configure MAC limiting, MAC learning, and MACsec 

• Monitor MAC limiting, MAC learning, and MACsec 

Port Security—DHCP Snooping, Dynamic ARP Inspection, and IP Source Guard 

• Describe DHCP snooping, dynamic ARP inspection, and IP source guard 

• Configure DHCP snooping, dynamic ARP inspection, and IP source guard 

• Monitor DHCP snooping, dynamic ARP inspection, and IP source guard 

Lab 6: Implementing Port Security 

High Availability—GRES, NSR, and NSB 

• Overview of high availability networks 

• Explain graceful Routing Engine switchover (GRES) 

• Explain nonstop active routing (NSR) 

• Explain nonstop bridging (NSB) 

Virtual Chassis 

• Describe operational details of Virtual Chassis 

• Implement Virtual Chassis and verify its operation 

Deploy Virtual Chassis 

• Configure and monitor Virtual Chassis 

Lab 7: Implementing Virtual Chassis Systems

The following Appendices can be covered if requested at the time of booking and subject to time during the course:

Appendix A: Junos Space Network Director 

• Describe Junos Space Network Director 

• Configure Junos Space Network Director

Appendix B: MSTP 

• Explain the operations of MSTP 

• Configure and verify MSTP 

Appendix C: Mist Integration with EX Series Switches 

• Explain mist solution and supported devices 

• Describe provisioning and deployment process 

Appendix D: Mist Wired Assurance 

• Describe the deployment options 

• Explain wired assurance SLE and their classifiers 

• Describe the role of Mist within campus and branch architecture 

Appendix E: ELS and Non-ELS Configuration 

• Configure switching options 

• Understand IRB and RVI interfaces and its configuration 

• Describe Q-in-Q VLAN tagging

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

• Complete the Introduction to the Junos Operating System (IJOS) course, or equivalent knowledge

JNCIS-ENT exam topics are based on the content of the recommended instructor-led training courses, as well as the additional resources.

• Exam code: JN0-348

• Written exam

• Administered by Pearson VUE

• Exam length: 90 minutes

• Exam type: 65 multiple-choice questions

• Pass/fail status is available immediately

• Software Release:

o Junos 18.4

o Junos Space Network Director 3.1

The JNCIS-ENT certification is valid for three years.

Exams can be purchased and scheduled at https://home.pearsonvue.com/junipernetworks/

Advanced Junos Enterprise Switching (AJEX)

Delegates will receive an official set of e-kit courseware approximately 1 week prior to the start of the course.