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CSC 465 Network Troubleshooting

Instructor: Dr. Ted Mims, email: mims.ted@uis.edu

Catalog Description: This course is the last of four courses in an advanced professional track sequence. It focuses teaching students to effectively and efficiently document issues, determine baselines, and troubleshoot internetworks using advanced techniques and skill sets from Layer 1 to Layer 7.

Purpose of and Rationale for the Course: Some of the biggest challenges facing the IT world are the expenses incurred as a result of network outages. The negative impact of these expenses makes it a high priority of network professionals to be able to diagnose and correct a network problem as efficiently as possible. In this course, students will gain hands-on experience in troubleshooting to minimize monetary and productivity losses. Students will learn to document and baseline the network. They will use detailed troubleshooting methodologies and skill sets at OSI internetworking layers 1 through 7 to effectively and efficiently isolate and resolve internetwork problems.

Educational Objectives: Students learn to analyze problems in internetworked environments, identify and isolate problems using the outside-in, inside-out and divide by half methods, create and implement a corrective action plan, iterate as needed, and document issues. Clear, calculated and logical troubleshooting skills are gained through hands-on lab experience. Students who successfully complete the advanced curriculum are eligible to earn Cisco Certified Network Professional (CCNP™) certification.

Outline of Topics to be Covered:

  • Network Baselining
  • Network Configuration Documentation
  • Building-Block Approach
  • Using a Layered Architectural Model to Describe Data Flow
  • Troubleshooting Models
  • Guidelines for Selecting an Approach
  • Flow Charts for Gathering Network and End-user Symptoms
  • Network Management System Frameworks
  • Knowledge Base Tools
  • Performance Measurement and Reporting Tools
  • Event and Fault Management Tools
  • Policy Management Tools
  • Characteristics of Physical Layer Failure Problems
  • Characteristics of Physical Layer Optimization Problems
  • Windows and Cisco Commands for Physical Layer Information Gathering
  • Identifying Physical Layer Problems
  • Isolating Physical Layer Problems
  • Implementing Physical Layer Solutions
  • Characteristics of Data Link Layer Problems
  • End-System Commands for Gathering Data Link Information
  • Troubleshooting Switched Ethernet Networks
  • Troubleshooting ISDN
  • Troubleshooting Frame Relay
  • PPP and Layer 2 Considerations for Routed and Routing Protocols
  • Troubleshooting Network Layer Problems
  • Troubleshooting Static Routes
  • Common IGP Routing Protocol Issues, Causes, and Solutions
  • Troubleshooting RIP
  • Troubleshooting IGRP
  • Troubleshooting EIGRP
  • Troubleshooting OSPF
  • Troubleshooting IS-IS
  • Troubleshooting BGP
  • Troubleshooting Redistribution
  • Characteristics of Transport Layer Technologies
  • Troubleshooting Transport Layer Issues on the Router
  • Troubleshooting Transport Layer Issues on Network Hosts
  • Troubleshooting Complex Network Systems
  • Troubleshooting the Application Layer
  • Gathering Information on Application Layer Problems
  • Troubleshooting TCP/IP Application Layer Protocols
  • Troubleshooting TCP/IP Application Layer Problems

Brief Description of the type of instruction and learning experiences: Students will review the web based curriculum materials and take on-line quizzes and tests, participate in group discussions. They will also, apply the skills acquired in this and previous classes to diagnose and solve problems in a network. They will use hardware and software tools in making the diagnosis.

Number and types of assignments: The curriculum includes laboratory exercises and the students complete approximately one per week. The students will be required to complete a set of laboratory exercises that are included with the curriculum. They will complete a hands-on practical laboratory exercise in trouble shooting and repairing a network that has been compromised and is not working at an optimal level.

Criteria for grading: Grades will be assigned on a percentage basis for the following areas:

  • On-line tests for each unit
  • Hands-on configuration of routers and switches
Graduate students will be required to write a paper on a topic related to WANs and selected in consultation with the teacher.



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The Department of Computer Science
University of Illinois at Springfield
One University Plaza
Springfield, IL 62703-5407

Last modified: August 3, 2004
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