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
