CCNP4 - Cisco Certified Network Professional

Troubleshooting

Module 1: Documenting and Baselining the Network 

1.1 Network Baselining

1.2 Network Configuration Documentation

1.3 Building-Block Approach

Module 2: Troubleshooting Methodologies and Tools 

2.1 Using a Layered Architectural Model to Describe Data Flow

2.2 Troubleshooting Approaches

2.3 Gathering Symptoms

2.4 Network Management Tools

Module 3: Troubleshooting at the Physical Layer 

3.1 Characteristics of Physical Layer Failure Problems

3.2 Characteristics of Physical Layer Optimization Problems

3.3 Windows and Cisco Commands for Physical Layer Information Gathering

3.4 Identifying Physical Layer Problems

3.5 Isolating Physical Layer Problems

3.6 Implementing Physical Layer Solutions

Module 4: Layer 2 Troubleshooting 

4.1 Characteristics of Data Link Layer Problems

4.2 End-System Commands for Gathering Data Link Information

4.3 Troubleshooting Switched Ethernet Networks

4.4 Troubleshooting ISDN

4.5 Troubleshooting Frame Relay

4.6 PPP and Layer 2 Considerations for Routed and Routing Protocols

Module 5: Layer 3 Troubleshooting 

5.1 Troubleshooting Network Layer Problems

5.2 Troubleshooting Static Routes

5.3 Common IGP Routing Protocol Issues, Causes, and Solutions

5.4 Troubleshooting RIP

5.5 Troubleshooting IGRP

5.6 Troubleshooting EIGRP

5.7 Troubleshooting OSPF

5.8 Troubleshooting IS-IS

5.9 Troubleshooting BGP

5.10 Troubleshooting Redistribution

Module 6: Layer 4 Troubleshooting 

6.1 Characteristics of Transport Layer Technologies

6.2 Troubleshooting Transport Layer Issues on the Router

6.3 Troubleshooting Transport Layer Issues on Network Hosts

6.4 Troubleshooting Complex Network Systems

Module 7: Layer 1-7 Troubleshooting 

7.1 Troubleshooting the Application Layer

7.2 Gathering Information on Application Layer Problems

7.3 Troubleshooting TCP/IP Application Layer Protocols

7.4 Troubleshooting TCP/IP Application Layer Problems