Troubleshooting and Maintaining Cisco IP Networks (CCNP TSHOOT)

Course Description:

The course focuses on planning tasks, evaluations of designs, performance measurements, configuring and verifying, and correct troubleshooting procedures and documentation tasks. From this course you will learn the foundational topics for critical analysis, planning, verification and documentation, while configuring tasks would have been mastered in the CCNP ROUTE and CCNP SWITCH material. The course walks you through several real-world troubleshooting examples to help you refine your study in the art of troubleshooting.

Course Outline:

1. Planning Maintenance for Complex Networks

       ·    Applying Maintenance Methodologies

               o    Models and methodologies commonly used for network maintenance 

                     and the benefits that   these models bring to an organization

               o    Select generalized maintenance models and planning tools that fit your organization

       ·    Common Maintenance Processes and Procedures

               o    Essential network maintenance tasks

               o    Advantages of scheduled maintenance

               o    Key decision factors that affect change control procedures in order to 

                     create procedures that fit the needs of your organization

               o    Essential elements of network documentation and their function

               o    Plan for efficient disaster recovery

               o    Importance of network monitoring and performance measurement 

                     as an integral element of a proactive network maintenance strategy

       ·    Network Maintenance Tools, Applications, and Resources

               o    Elements of a basic network maintenance toolkit

               o    Tools that support the documentation process and are appropriate

                     to your organization

               o    How configuration, software, and hardware resource management 

                     software can improve disaster recovery procedures

               o    How network monitoring software benefits the maintenance process

               o    Metrics that could be used to measure network performance, the performance 

                     measurement process, and creating a performance measurement plan that is 

                    appropriate to your organization

2. Planning Troubleshooting Processes for Complex Enterprise Networks

        ·    Applying Troubleshooting Methodologies

             o    Fundamental elements of a troubleshooting process

             o    Advantages of a structured network troubleshooting method

             o    Evaluate and assess common troubleshooting approaches

             o    Select a combination of troubleshooting methods that are 

                   appropriate to a specific troubleshooting scenario

        ·    Planning and Implementing Troubleshooting Procedures

             o    Fundamental subprocesses of the generic troubleshooting process

             o    Formulate correct problem definitions and assign responsibilities

             o    Gather information in a structured manner

             o    Interpret and analyze the gathered information

             o    Isolate a problem through a process of elimination

             o    Formulate a hypothesis and evaluate the necessary actions to take 

                   after you have formulated a hypothesis

             o    Test a hypothesis and roll back if a hypothesis is not confirmed

             o    Integrate a solution into the existing network

       ·    Integrating Troubleshooting into the Network Maintenance Process

             o    Evaluate the benefits gained by aligning troubleshooting procedures 

                   to network maintenance procedures

             o    Create and routinely update documentation as part of the troubleshooting process

             o    Identify abnormal network behavior by comparing actual behavior to a 

                   baseline created as part of the network maintenance process

             o    Implement communication processes that increase the effectiveness 

                   of the troubleshooting process

             o    Implement change procedures that are flexible enough to support the 

                   changes needed during troubleshooting and controlled enough to be 

                   integrated into the standard maintenance and documentation procedures

3. Maintenance and Troubleshooting Tools and Applications

       ·    Assembling a Basic Diagnostic Toolkit Using Cisco IOS Software

             o    Apply filtering to Cisco IOS commands to select relevant output

             o    Test network connectivity using Cisco IOS commands

             o    Diagnose basic hardware-related problems

       ·    Using Specialized Maintenance and Troubleshooting Tools

             o    Tools and their underlying technologies supporting the troubleshooting process

             o    Enable SPAN and RSPAN to facilitate the use of packet sniffers

             o    Configure routers and switches for communication with SNMP-based or

                  NetFlow-based network management systems in order to facilitate the 

                  collection of device and traffic statistics that are part of a network baseline

             o    Configure routers and switches to send SNMP traps to provide  

                   fault notification to SNMP-based network management systems

              o   Validate your understanding of the network and available tools and 

                   fill in any potential gaps in your documentation

              o  Consolidate the lessons learned during the review discussions into a  

                  set of best-practice methods and commands to aid in future

                  troubleshooting   procedures

4. Maintaining and Troubleshooting Campus Switching-Based Solutions

       ·    Troubleshooting VLANs

               o    Process involved in switching a frame from a host in a VLAN to 

                     another host in the same VLAN across multiple switched hops

               o    Analyze information gathered from switch data structures to verify 

                     proper operation of Layer 2 forwarding within a VLAN

       ·    Troubleshooting Spanning Tree

                o    Steps that spanning tree goes through to attain a loop-free topology

                o    Determine the spanning-tree topology using Cisco IOS commands

                o    Symptoms and remediation of spanning-tree failures

                o    Compare your solution, findings, and action log against a set of 

                      checkpoints provided by the instructor and identify common and

                      alternative solutions

                o    Consolidate the lessons learned during the review discussions into a set of 

                      best-practice methods and commands to aid you in future

                      troubleshooting procedures

       ·    Troubleshooting Switched Virtual Interfaces and Inter VLAN Routing

                o    Use the information contained in the data structures used in the 

                      operation of multilayer switching to diagnose issues related to multilayer switching

                o    Diagnose problems related to SVI and routed ports based on an  understanding 

                      of the essential differences between these two types of Layer 3 interfaces on a 

                      multilayer switch

       ·    Troubleshooting FHRPs

                o    The HSRP election process and packet forwarding via HSRP routers

                o    Verify the operation of HSRP using Cisco IOS commands

                o    Similarities and major differences between HSRP, VRRP, and GLBP

       ·    Troubleshooting Performance Problems on Switches

                o    Use Cisco IOS commands to diagnose physical and data link layer

                      problems on  switch ports

                o    Use Cisco IOS commands to analyze TCAM utilization on switches to  

                      determine the root cause of TCAM allocation failures

                o    Use Cisco IOS commands to determine the root cause of high CPU

                      usage on a switch

5. Maintaining and Troubleshooting Routing-Based Solutions

       ·    Troubleshooting Network Layer Connectivity

                 o    Processes involved in routing packets across multiple router hops from 

                       one host to another host in a different subnet

                 o    Analyze information gathered from a router's routing table and FIB to 

                       verify the IP packet forwarding process

                  o   Verify the mapping of Layer 3 information to Layer 2 information to ensure 

                       that routed packets are correctly encapsulated and transmitted using the data 

                       link protocol of the egress interface

       ·    Troubleshooting EIGRP

                 o    Apply your knowledge of EIGRP data structures to gather necessary information 

                       as part of a structured approach to troubleshooting EIGRP routing problems

                 o    Apply your knowledge of the processes that EIGRP uses to exchange routing 

                      information to interpret and analyze the information that is gathered during an 

                      EIGRP troubleshooting process

                  o   Use Cisco IOS commands to gather information from the EIGRP data 

                       structures and track the flow of EIGRP routing information to

                       troubleshoot EIGRP operation

       ·    Troubleshooting OSPF

                  o   Apply your knowledge of OSPF data structures to gather necessary 

                       information as part of a structured approach to troubleshooting

                       OSPF routing problems

                  o   Apply your knowledge of the processes that OSPF uses to exchange 

                       network topology information within an area to interpret and analyze the 

                       information that is gathered during an OSPF troubleshooting process

                   o  Apply your knowledge of the processes that OSPF uses to exchange 

                         network topology information between areas, to interpret and analyze the 

                         information that is gathered during an OSPF troubleshooting process

                    o    Use Cisco IOS commands to gather information from the OSPF data structures 

                          and track the flow of OSPF routing information to troubleshoot OSPF operation

       ·    Troubleshooting Route Redistribution

                     o    Data structures and processes involved in route redistribution

                     o    Verify the correct operation of a route redistribution process

       ·    Troubleshooting BGP

                     o    Apply your knowledge of BGP data structures to gather necessary information 

                           as part of a structured approach to troubleshooting BGP routing problems

                     o    Apply your knowledge of the processes that BGP uses to exchange 

                           routing information to interpret and analyze the information that is

                           gathered during a BGP troubleshooting process

                      o   Use Cisco IOS commands to gather information from the BGP data structures 

                           and track the flow of BGP routing information in order to

                            troubleshoot BGP operation

       ·    Troubleshooting Performance Problems on Routers

                      o    Use the IOS tools to analyze CPU usage to determine the root cause of high 

                            CPU usage on a router

                      o    Use the IOS tools to analyze packet forwarding through a router

                      o    Use the IOS tools to analyze memory usage to troubleshoot 

                            router performance problems

       ·     Troubleshooting on NAT and DHCP

                      o    Troubleshooting NAT and PAT

                      o    Troubleshooting DHCP

                      o    Troubleshooting IPv6, OSPFv3, and RIPng

6. Maintaining and Troubleshooting Network Security Solutions

       ·    Troubleshooting Security Features

       ·    Impact of security features on network troubleshooting

       ·    Security Features Review

       ·    Diagnose and resolve transport layer problems in a structured manner

       ·    Verify the operation of Cisco IOS Firewall stateful packet inspection

       ·    Diagnose and resolve problems related to using AAA on routers and switches

7. Maintaining and Troubleshooting Integrated, Complex Enterprise Networks

       ·    Troubleshooting Complex Environments

       ·    Primary lessons learned about network maintenance and troubleshooting 

            tasks during previous labs