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Overview

This course gives networking professionals hands-on knowledge of how to troubleshoot a BIG-IP system using a number of troubleshooting techniques as well as troubleshooting and system tools. This course includes lectures, labs, and discussions.

Prerequisite(s):

Administering BIG-IP, OSI model, TCP/IP addressing and routing, WAN, LAN environments, and server redundancy concepts; or having achieved TMOS Administration Certification

Audience:

This course assumes that you have successfully completed the Administering BIG-IP course, or equivalent, and have hands-on experience working in a production BIG-IP environment for several months. You should have a solid understanding of the environment in which the BIG-IP is deployed. This course is meant for BIG-IP administrators, network engineers, applications engineers, etc., who will be responsible for troubleshooting problems associated with their BIG-IP system.

Description

Outline:

Lesson 1: Setting Up the BIG-IP System

  • Introducing the BIG-IP System
  • Initially Setting Up the BIG-IP System
  • Archiving the BIG-IP System Configuration

Lesson 2: Reviewing Local Traffic Configuration

  • Reviewing Nodes, Pools, and Virtual Servers
  • Reviewing Address Translation
  • Reviewing Routing Assumptions
  • Reviewing Application Health Monitoring
  • Reviewing Traffic Behavior Modification with Profiles
  • Reviewing the TMOS Shell (TMSH)
  • Reviewing Managing BIG-IP Configuration Data
  • Reviewing High Availability (HA)

Lesson 3: Troubleshooting Methodology

  • Step-By-Step Process
  • Step 1: State the Problem
  • Step 2: Specify the Problem
  • Step 3: Map the System
  • Step 4: Develop Possible Causes
  • Step 5: Test Theories
  • Step 6: Iterate Until Root Cause Identified
  • Documenting a Problem
  • Putting Troubleshooting Steps to Use

Lesson 4: Working with F5 Support

  • Leveraging F5 Support Resources
  • AskF5.com
  • DevCentral
  • iHealth
  • Leveraging F5 Labs
  • Working with F5 Technical Support
  • Running End User Diagnostics (EUD) – Hardware Only
  • New Platform Diagnostic Tools
  • Always-On Management (AOM) Subsystem
  • Requesting Return Materials Authorization
  • F5?s Software Version Policy
  • Managing the BIG-IP License for Upgrades
  • Managing BIG-IP Disk Space
  • Upgrading BIG-IP Software

Lesson 5: Troubleshooting ? Bottom to Top

  • Introducing Differences between BIG-IP and LINUX Tools
  • Troubleshooting with Layer 1/Layer 2 Tools
  • Troubleshooting with Layer 2/Layer 3 Tools
  • Troubleshooting with Layer 3 Tools
  • Troubleshooting with LINUX Tools
  • Troubleshooting Memory and CPU
  • Troubleshooting with watch
  • Troubleshooting with Additional tmsh commands

Lesson 6: Troubleshooting Tools

  • tcpdump
  • Wireshark
  • ssldump
  • Fiddler
  • diff
  • KDiff3
  • cURL

Lesson 7: Using System Logs

  • Configuring Logging
  • Log Files
  • Understanding BIG-IP Daemons Functions
  • Triggering an iRule
  • Deploying and Testing iRules
  • Application Visibility and Reporting

Lesson 8: Troubleshooting Lab Projects

  • Network Configurations for Project

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