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Computer Network Engineer III
Build skills equivalent to the TSHOOT - Troubleshooting and Maintaining Cisco IP Networks v1.0 program
  • Credit Hours: 5 Days

  • Format: Virtual Classroom - Instructor-Led Online

  • Professional Certificate: TSHOOT - Troubleshooting and Maintaining Cisco IP Networks v1.0

  • Recommended for: Network engineers Network operations center (NOC) technical support personnel Help desk technicians Anyone who wants to improve their skills maintaining and troubleshooting complex Cisco IP networks

The Computer Network Engineer III course prepares students for employment in the Informational Technology industry. Students will gain the skills necessary to maintain complex network environments and diagnose and resolve network problems quickly and effectively. Students will also obtain knowledge on troubleshooting and how to maintain particular technologies, as well as the procedural and organizational aspects of the troubleshooting and maintenance processes. This training course will be administered through a comprehensive, theory based platform and virtual labs. The courses curriculum satisfies the requirements needed to obtain employment and/or career advancement.

This course prepares students for employment as a Network Engineer or Technical Support Personnel. According to the Bureau of Labor Statistics, employment change between 2010 and 2020 will grow by 18% greater than the annual average.

What You'll Learn

  • Plan and document the most commonly performed maintenance functions in complex enterprise networks
  • Develop a troubleshooting process to identify and resolve problems in complex enterprise networks
  • Select tools that best support specific troubleshooting and maintenance processes in large, complex enterprise networks
  • Maintenance procedures and fault resolution in switching- and routing-based environments
  • Maintenance procedures and fault resolution in a secure infrastructure
  • Troubleshoot and maintain integrated, complex enterprise networks

Who Needs to Attend

  • Network engineers
  • Network operations center (NOC) technical support personnel
  • Help desk technicians
  • Anyone who wants to improve their skills maintaining and troubleshooting complex Cisco IP networks


An understanding of internetworking technologies and the ability to perform basic configuration of Cisco routers, including practical experience installing, operating, and maintaining Cisco routers and switches in an enterprise environment.

Course Outline

1. Maintenance Planning

  • Maintenance Methodologies
  • Models
  • Procedures
  • Supporting Tools
  • Maintenance Processes and Procedures
  • Essential Network Maintenance Tasks
  • Maintenance Planning
  • Change Control
  • Documentation
  • Disaster Recovery
  • Network Monitoring and Performance Measurement
  • Tools, Applications, and Resources
  • Fundamental Tools
  • Documentation Tools
  • Disaster Recovery Tools
  • Network Monitoring Tools
  • Performance Measurement Tools

2. Planning Troubleshooting Processes

  • Troubleshooting Methodologies
  • Troubleshooting Principles
  • Structured Network Troubleshooting
  • Common Troubleshooting Approaches
  • Planning and Implementing Troubleshooting Procedures
  • Network Troubleshooting Procedures
  • Reporting, Defining, and Assigning Problems
  • Gathering Relevant Information
  • Analyzing Gathered Information
  • Proposing and Eliminating Problem Causes
  • Proposing Hypotheses
  • Testing and Verifying a Proposed Hypothesis
  • Wrapping Up the Process
  • Integrating Troubleshooting into the Network Maintenance Process
  • Documentation
  • Creating a Baseline
  • Communication
  • Change Control

3. Maintenance and Troubleshooting Tools and Applications

  • Assembling a Basic Diagnostic Toolkit
  • Selecting and Filtering Information
  • Connection Testing
  • Hardware Diagnostics
  • Specialized Tools
  • Troubleshooting and Supporting Tools
  • Traffic Capturing
  • Statistics Gathering and Traffic Accounting
  • Notification

4. Troubleshooting Campus Switching-Based Solutions

  • VLANs
  • LAN Switching Operation
  • Switch Data Structures
  • Spanning Tree and Rapid Spanning Tree
  • Analyzing the Topology
  • Spanning Tree Failures
  • EtherChannel Operation
  • Switched Virtual Interfaces and Inter-VLAN Routing
  • Inter-VLAN Routing and Multilayer Switching
  • Switched Virtual Interfaces and Routed Ports
  • FHRPs
  • Using HSRP for First-Hop Redundancy
  • Verifying HSRP Operation
  • Using VRRP and GLBP as Alternatives to HSRP
  • Switch Performance Problems
  • Physical and Data Link Layer Problems
  • TCAM Problems
  • High CPU Load on Switches
  • Additional Campus Switching Technologies (via E-Learning)

5. Troubleshooting Routing-Based Solutions

  • Network Layer Connectivity
  • Layer 3 Connectivity Overview
  • Layer 3 Data Structures
  • Layer 3 to Layer 2 Mapping
  • Data Structures
  • Information Flow
  • Cisco IOS EIGRP Commands
  • OSPF
  • Data Structures
  • Information Flow Inside an Area
  • Information Flow from Area to Area
  • Route Redistribution
  • Process
  • Verifying Redistribution
  • BGP
  • Data Structures
  • Routing Information Flow
  • Cisco IOS Commands
  • Router Performance Problems
  • High CPU
  • Cisco IOS Switching Paths
  • Router Memory Issues
  • Troubleshooting NAT and DHCP (via E-Learning)

6. Network Security Solutions

  • Troubleshooting Security Features
  • Network and Device Security
  • Security Features Review
  • Troubleshooting Transport Layer Problems
  • Cisco IOS Firewall
  • Authentication, Authorization, and Accounting
  • Additional Security Troubleshooting (via E-Learning)

7. Integrated, Complex Enterprise Networks


Lab 1: Lab Access

Lab 2: Introduction to Troubleshooting

Lab 3: Maintenance and Troubleshooting Tools

Lab 4: Layer 2 Connectivity and Spanning Tree

Lab 5: Layer 3 Switching and First-Hop Redundancy

Lab 6: Layer 3 Connectivity and EIGRP

Lab 7: OSPF and Route Redistribution

Lab 8: Border Gateway Protocol

Lab 9: Router Performance

Lab 10: Introduction to Network Security

Lab 11: Cisco IOS Security Features

Lab 12: Troubleshooting Complex Environments

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Learn about TSHOOT - Troubleshooting and Maintaining Cisco IP Networks v1.0 in 5 Days