Troubleshooting and Maintaining Cisco IP
Networks
Cisco Course v1.0 | Prepares you for Cisco Exam
642-832.
In this course, networking professionals who work in complex
network environments will gain the skills needed to maintain their
networks and to diagnose and resolve network problems quickly and
effectively. You will learn to troubleshoot and maintain particular
technologies, and you will learn procedural and organizational
aspects of the troubleshooting and maintenance process. A large
part of the course consists of practicing these skills and
reinforcing the concepts by putting them to use in a controlled
environment.
At the end of the course, you will have increased your skill
level and developed a set of best practices that are based on your
experience and the experiences of other students and that you can
take back to your organization. This course is a component of the
CCNP curriculum and assists the network professional in preparing
for Cisco CCNP certification.
What you will receive in your Spel package:
This package includes recorded lab demonstrations, allowing you
to get exposure to and comprehension of the details of each lab,
access to Self Test Software's exam prep products and one FREE exam
voucher.
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-based
environments
- Maintenance procedures and fault resolution in routing-based
environments
- Maintenance procedures and fault resolution in a secure
infrastructure
- Troubleshoot and maintain integrated, complex enterprise
networks
Course Outline
1. Planning Maintenance for Complex
Networks
- Applying Maintenance Methodologies
- Models and methodologies commonly used for network maintenance
and the benefits that these models bring to an organization
- Select generalized maintenance models and planning tools that
fit your organization
- Common Maintenance Processes and Procedures
- Essential network maintenance tasks
- Advantages of scheduled maintenance
- Key decision factors that affect change control procedures in
order to create procedures that fit the needs of your
organization
- Essential elements of network documentation and their
function
- Plan for efficient disaster recovery
- Importance of network monitoring and performance measurement as
an integral element of a proactive network maintenance
strategy
- Network Maintenance Tools, Applications, and Resources
- Elements of a basic network maintenance toolkit
- Tools that support the documentation process and are
appropriate to your organization
- How configuration, software, and hardware resource management
software can improve disaster recovery procedures
- How network monitoring software benefits the maintenance
process
- 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
- Lab 2-1 Debrief
- Applying Troubleshooting Methodologies
- Fundamental elements of a troubleshooting process
- Advantages of a structured network troubleshooting method
- Evaluate and assess common troubleshooting approaches
- Select a combination of troubleshooting methods that are
appropriate to a specific troubleshooting scenario
- Planning and Implementing Troubleshooting Procedures
- Fundamental subprocesses of the generic troubleshooting
process
- Formulate correct problem definitions and assign
responsibilities
- Gather information in a structured manner
- Interpret and analyze the gathered information
- Isolate a problem through a process of elimination
- Formulate a hypothesis and evaluate the necessary actions to
take after you have formulated a hypothesis
- Test a hypothesis and roll back if a hypothesis is not
confirmed
- Integrate a solution into the existing network
- Integrating Troubleshooting into the Network Maintenance
Process
- Evaluate the benefits gained by aligning troubleshooting
procedures to network maintenance procedures
- Create and routinely update documentation as part of the
troubleshooting process
- Identify abnormal network behavior by comparing actual behavior
to a baseline created as part of the network maintenance
process
- Implement communication processes that increase the
effectiveness of the troubleshooting process
- 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
- Apply filtering to Cisco IOS commands to select relevant
output
- Test network connectivity using Cisco IOS commands
- Diagnose basic hardware-related problems
- Using Specialized Maintenance and Troubleshooting Tools
- Tools and their underlying technologies supporting the
troubleshooting process
- Enable SPAN and RSPAN to facilitate the use of packet
sniffers
- 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
- Configure routers and switches to send SNMP traps to provide
fault notification to SNMP-based network management systems
- Lab 3-1 Debrief
- Validate your understanding of the network and available tools
and fill in any potential gaps in your documentation
- 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
- Process involved in switching a frame from a host in a VLAN to
another host in the same VLAN across multiple switched hops
- Analyze information gathered from switch data structures to
verify proper operation of Layer 2 forwarding within a VLAN
- Troubleshooting Spanning Tree
- Steps that spanning tree goes through to attain a loop-free
topology
- Determine the spanning-tree topology using Cisco IOS
commands
- Symptoms and remediation of spanning-tree failures
- Lab 4-1 Debrief
- Compare your solution, findings, and action log against a set
of checkpoints provided by the instructor and identify common and
alternative solutions
- 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
- Use the information contained in the data structures used in
the operation of multilayer switching to diagnose issues related to
multilayer switching
- 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
- The HSRP election process and packet forwarding via HSRP
routers
- Verify the operation of HSRP using Cisco IOS commands
- Similarities and major differences between HSRP, VRRP, and
GLBP
- Lab 4-2 Debrief
- Troubleshooting Performance Problems on Switches
- Use Cisco IOS commands to diagnose physical and data link layer
problems on switch ports
- Use Cisco IOS commands to analyze TCAM utilization on switches
to determine the root cause of TCAM allocation failures
- Use Cisco IOS commands to determine the root cause of high CPU
usage on a switch
- References to Additional Campus Switching Technologies in
E-Learning
- Troubleshooting Performance Problems on Switches e-learning
module
- Troubleshooting Wireless Integration e-learning module
- Troubleshooting Voice over IP Integration e-learning
module
- Troubleshooting Video Integration e-learning module
- Process of accessing and using e-learning content
5. Maintaining and Troubleshooting Routing-Based
Solutions
- Troubleshooting Network Layer Connectivity
- Processes involved in routing packets across multiple router
hops from one host to another host in a different subnet
- Analyze information gathered from a router's routing table and
FIB to verify the IP packet forwarding process
- 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
- Apply your knowledge of EIGRP data structures to gather
necessary information as part of a structured approach to
troubleshooting EIGRP routing problems
- 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
- Use Cisco IOS commands to gather information from the EIGRP
data structures and track the flow of EIGRP routing information to
troubleshoot EIGRP operation
- Lab 5-1 Debrief
- Troubleshooting OSPF
- Apply your knowledge of OSPF data structures to gather
necessary information as part of a structured approach to
troubleshooting OSPF routing problems
- 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
- 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
- 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
- Data structures and processes involved in route
redistribution
- Verify the correct operation of a route redistribution
process
- Lab 5-2 Debrief
- Troubleshooting BGP
- Apply your knowledge of BGP data structures to gather necessary
information as part of a structured approach to troubleshooting BGP
routing problems
- 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
- 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
- Lab 5-3 Debrief
- Troubleshooting Performance Problems on Routers
- Use the IOS tools to analyze CPU usage to determine the root
cause of high CPU usage on a router
- Use the IOS tools to analyze packet forwarding through a
router
- Use the IOS tools to analyze memory usage to troubleshoot
router performance problems
- Lab 5-4 Debrief
- References to Additional Troubleshooting on NAT and DHCP in
E-Learning
- Troubleshooting NAT and PAT e-learning module
- Troubleshooting DHCP e-learning module
- Troubleshooting IPv6, OSPFv3, and RIPng e-learning module
- Process of accessing and using e-learning content
6. Maintaining and Troubleshooting Network Security
Solutions
- Troubleshooting Security Features
- Impact of security features on network troubleshooting
- Lab 6-1 Debrief
- 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
- Lab 6-2 Debrief
- References to Additional Security Troubleshooting in
E-Learning
- Troubleshooting Network Applications Services e-learning
module
- Troubleshooting Branch Office and Remote Worker Problems
e-learning module
- Process of accessing and using e-learning content
7. Maintaining and Troubleshooting Integrated, Complex
Enterprise Networks
- Troubleshooting Complex Environments
- Primary lessons learned about network maintenance and
troubleshooting tasks during previous labs
- Lab 7-1 Debrief
Labs
Lab 1-1: Lab Access
Lab 2-1: Introduction to Troubleshooting
Identify the key procedural aspects of a troubleshooting
process.
Lab 3-1: Maintenance and Troubleshooting Tools
Learn the key aspects of the baseline design and implementation
of the lab network.
Lab 4-1: Layer 2 Connectivity and Spanning Tree
Diagnose and resolve Layer 2 connectivity problems.
Lab 4-2: Layer 3 Switching and First-Hop Redundancy
Diagnose and resolve problems involving multilayer switching and
FHRPs.
Lab 5-1: Layer 3 Connectivity and EIGRP
Diagnose and resolve IP routing and EIGRP-related problems.
Lab 5-2: OSPF and Route Redistribution
Diagnose and resolve problems related to OSPF and route
redistribution.
Lab 5-3: Border Gateway Protocol
Diagnose and resolve problems related to BGP.
Lab 5-4: Router Performance
Diagnose and resolve performance problems involving high CPU and
memory utilization.
Lab 6-1: Introduction to Network Security
Diagnose and resolve problems related to access lists and
authentication.
Lab 6-2: Cisco IOS Security Features
Diagnose and resolve problems related to access lists and
authentication.
Lab 7-1: Troubleshooting Complex Environments
Diagnose and resolve network problems in a complex
environment.