JT - Junos Troubleshooting - Online Training - English - Webinar von Fast Lane Institute for Knowledge Transfer

DAY 1

1 Course Introduction

2 Junos Product Families

• Describe the architectural philosophy of devices that run the Junos OS and understand how this relates to troubleshooting
• Describe traffic processing for transit and exception traffic
• Describe the function and components of the RE and PFE within a device running the Junos OS
• Describe FRUs
• Describe current Junos product families and understand where to go for detailed information about your hardware

Lab 1: Identifying Hardware Compon

3 Troubleshooting Toolkit

• Describe various tools that can be used to troubleshoot devices that run the Junos operating system
• Explain JTAC recommendations for current bestpractices that facilitate troubleshooting

Lab 2: Using Monitoring Tools and Establishing a Baseline

4 Hardware and Environmental Conditions

• Describe the key commands and features used to monitor storage and memory issues
• Describe the key commands and features that you can use to monitor software installations
• Determine how to find potential hardware problems using system logs
• Describe the key commands that you can use to monitor hardware and environmental issues

Lab 3: Monitoring Hardware and Environmental Conditions

5 Control Plane

• Monitor and troubleshoot system processes that reside in the control plane
• Utilize a logical approach to troubleshooting routing issues that reside in the control plane
• Monitor and troubleshoot basic bridging and ARP functionalities

Lab 4: Control Plane Monitoring and Troubleshooting

6 Control Plane Protection

• Describe DDoS attacks
• Explain and configure the DDoS protection feature
• Outline using firewall filters to protect the control plane

Lab 5: Protecting the Control Plane

DAY 2

7 Data Plane: Interfaces

• Describe physical and logical interface properties
• Deactivate and disable interfaces
• Perform loopback testing
• Use operational mode commands to monitor and troubleshoot Ethernet interfaces

Lab 6: Monitoring and Troubleshooting Ethernet Interfaces

8 Data Plane: Other Components

• Recognize data plane problems and components
• Monitor and troubleshoot data plane forwarding
• Monitor load balancing
• Troubleshoot firewall filter and policer issues

Lab 7: Isolating and Troubleshooting PFE Issues

9 Staging and Acceptance Testing

• • Perform a Junos device initial inspection and power-on
• • Perform general system checks recommended for a newly deployed Junos device
• • Determine the status of new interface connections by performing loopback testing and monitoring

10 Troubleshooting Network Services

• Discuss DNS, DHCP, NTP, SSH, SNMP, and telemetry
• Explain authentication issues
• Discuss MACsec issues
• Discuss LLDP issues

Lab 8: Troubleshooting Network Services

11 Troubleshooting High Availability Features

• Discuss LACP, BFD, NSR, and NSB issues
• Explain graceful routing engine switchover
• Explain graceful restart
• Discuss Aggregated Ethernet issues
• Discuss MC-LAG issues
• Discuss VRRP issues

12 Network Monitoring

• Explain how to configure and monitor SNMP
• Discuss how to configure and monitor RMON
• Describe how to use the Junos telemetry interface
• Describe how to use flow monitoring

Lab 9: Monitoring the Network

A Appendix: Junos RPM

• Explain the purpose of the Junos RPM
• Describe the components of the Junos RPM
• Implement Junos RPM Probes
• Monitor the deployed Probes

• Describe Junos products and related information and recovery options.
• Explain various tools that can be used to troubleshoot Junos devices.
• Explain Junos CLI commands used in troubleshooting.
• Identify and isolate hardware issues.
• Troubleshoot problems with the control plane.
• Describe control plane protection features.
• Troubleshoot problems with interfaces and other data plane components.
• Describe the staging and acceptance methodology.
• Troubleshoot networking services.
• Troubleshoot high availability features.
• Describe how to monitor your network with SNMP, RMON, Junos
• Telemetry Interface, Junos Traffic Vision (formerly known as JFlow), and
• port mirroring.