Arrow Electronics, Inc.

Advanced Junos Troubleshooting (AJT)


LENGTH: 24 Hours (3 days)

PRICE: £2,550.00


This three-day course provides students with the knowledge to troubleshoot switching, routing, and security features.

This course builds off the Juniper Technical Support Fundamentals (JTSF) and Junos Troubleshooting (JT) courses and helps network engineers further their network troubleshooting capabilities.

Key topics include troubleshooting dynamic routing protocols such as OSPF, IS-IS, BGP, switching protocols, Ethernet VPN–Virtual Extensible LAN (EVPN-VXLAN) network, MPLS, multicast, class of service (CoS), stateful firewall features, IPsec VPNs (site-to-site and remote access), chassis clusters, next-generation firewall features, and vSRX.

The course is based on Junos OS Release 23.1R1.

This is an advanced level course.


After successfully completing this course, you should be able to:

• Troubleshoot problems with OSPF routing protocol.

• Troubleshoot problems with IS-IS routing protocol.

• Troubleshoot problems with BGP routing protocol.

• Troubleshoot routing loops and route oscillations.

• Troubleshoot problems with switching protocols.

• Troubleshoot an EVPN-VXLAN setup.

• Demonstrate the ability to troubleshoot MPLS.

• Demonstrate the ability to troubleshoot native multicast.

• Demonstrate the ability to troubleshoot CoS.

• Troubleshoot stateful firewall inspection.

• Troubleshoot site-to-site IPsec VPNs.

• Troubleshoot remote access VPNs using Juniper Secure Connect.

• Troubleshoot chassis clusters.

• Troubleshoot next-generation firewall features.

• Troubleshoot vSRX.


This course benefits individuals responsible for troubleshooting Juniper devices running Junos OS, which includes network operators, engineers, administrators, support personnel, and reseller support personnel.


Day 1



Troubleshooting OSPF

• Troubleshoot OSPF adjacencies

• Troubleshoot OSPF inconsistencies


Lab 1: Troubleshooting OSPF


Troubleshooting IS-IS

• Troubleshoot IS-IS adjacencies


Lab 2: Troubleshooting IS-IS


Troubleshooting BGP

• Troubleshoot BGP neighbors

• Troubleshoot BGP route advertisements


Lab 3: Troubleshooting BGP


Troubleshooting Routing Loops and Route Oscillations

• Troubleshoot routing loops and route oscillations


Lab 4: Troubleshooting Routing Loops and Route Oscillations


Day 2


Troubleshooting Switching Protocols

• Implement monitoring and troubleshoot Layer 2 networks


Lab 5: Troubleshooting Switching Protocols


Troubleshooting EVPN-VXLAN network

• Verify EVPN-VXLAN related configuration and run time issues


Lab 6: Troubleshooting EVPN-VXLAN


Troubleshooting MPLS

• Troubleshoot RSVP and LDP LSPs


Lab 7: Troubleshooting MPLS


Troubleshooting Multicast

• Troubleshoot PIM sparse mode operation


Lab 8: Troubleshooting Multicast


Troubleshooting CoS

• Perform class of service troubleshooting


Lab 9: Troubleshooting CoS


Day 3


Troubleshooting Stateful Firewall Security

• Troubleshoot traffic flows through a stateful firewall


Lab 10: Troubleshooting Stateful Firewall Security


Troubleshooting IPsec VPNs

• Describe general troubleshooting for IPsec VPNs

• Describe how to troubleshoot IKE Phase 1 and Phase 2

• Configure and analyze logging for IPsec VPNs

• Examine IPsec troubleshooting case studies


Lab 11: Troubleshooting IPsec VPNs


Troubleshooting Chassis Clusters

• Troubleshoot chassis clusters

• Review chassis cluster case studies


Lab 12: Troubleshooting Chassis Clusters


Troubleshooting Next-Generation Firewall Features

• Troubleshoot AppSecure services


Lab 13: Troubleshooting Next-Generation Firewall Features


Troubleshooting vSRX

• Describe steps used to troubleshoot vSRX deployments


Lab 14: Troubleshooting vSRX

Session Dates
Time Zone

28 Aug 2024

Virtual Training Class - TP



Instructor Led Online

£ 2,550.00

11 Nov 2024

Virtual Training Class - TP



Instructor Led Online

£ 2,550.00