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TSHOOT: Troubleshooting and Maintaining Cisco IP NetworksCourse OverviewThis course provides students with the knowledge and skills to troubleshoot and maintain CiscoIP networks, including complex enterprise and converged networks.Course IntroductionCourse Introduction3mChapter 01 - Planning Maintenance for Complex NetworksPlanning Maintenance for Complex NetworksMaintenance Models and MethodologiesBenefits of Structured Maintenance over Interrupt-driven MaintenanceMaintenance Models and Methodologies - Cont.The Configuration Management Element of the FCAPS ModelNetwork Maintenance Processes and ProceduresNetwork Maintenance Tools, Applications, and ResourcesNTP ExampleCisco Configuration and Documentation ToolsLogging ServicesLogging to a ServerNetwork Monitoring and Performance Measurement ToolsImplementing Backup and Restore Services using FTPImplementing Backup and Restore Services using ArchiveImplementing Backup and Restore Services using configure replaceDisaster Recovery ToolsDemo - Creating a Physical and Logical TopologyChapter 01 Review47mChapter 02 - Troubleshooting Processes for Complex Enterprise NetworksTroubleshooting Processes for Complex Enterprise NetworksTroubleshooting MethodologiesTroubleshooting ApproachesTroubleshooting Approaches - Spot the Differences ExampleTroubleshooting Approaches - Move the Problem ExampleImplementing Troubleshooting ProceduresThe Troubleshooting Process – Verify and Define the ProblemThe Troubleshooting Process – Gather InformationThe Troubleshooting Process – AnalyzeThe Troubleshooting Process – EliminateThe Troubleshooting Process – Propose HypothesisThe Troubleshooting Process – Test HypothesisThe Troubleshooting Process – Solve ProblemThe Troubleshooting and Network MaintenanceCommunication and Change Control – Cont.1h 25m

Disaster Recovery ToolsDemo - Configuring DevicesDemo - Doing a Baseline ConfigurationChapter 02 ReviewChapter 03 - Using Maintenance and Troubleshooting Tools and ApplicationsUsing Maintenance and Troubleshooting Tools and ApplicationsCollecting and Filtering Information Using IOS show CommandsTesting Network Connectivity Using Cisco IOS CommandsCollecting Real-time Information Using Cisco IOS debug CommandsDiagnosing Hardware Issues Using Cisco IOS CommandsUsing Traffic Capturing ToolsGathering Information with SNMPGathering Information with NetFlowSNMP and NetFlow ComparisonEnabling Network Event NotificationEnabling Network Event Notification – SNMPEnabling Network Event Notification – Embedded Event Manager (EEM)Enabling Network Event Notification – EEMDemo - Collecting and Filtering Information with the show ip CommandChapter 03 Review41mChapter 04 - Maintaining and Troubleshooting Campus Switched SolutionsTroubleshooting Tools and ApplicationsMaintaining and Troubleshooting Campus Switched Solutions TroubleshootingTools and ApplicationsLAN Switch OperationVerifying Layer 2 ForwardingSpanning Tree OperationSpanning Tree FailuresEtherChannel OperationEtherChannel ProblemsEtherChannel Diagnostic CommandsEtherChannel DiagnosticsInter-VLAN Routing and Multilayer SwitchingTroubleshooting Routers and Multi-Layer SwitchesTroubleshooting Multi-layer SwitchesSwitched Virtual Interfaces (SVIs) and Routed PortsMultilayer Switches, VLANs and RoutingRouted Interfaces vs. SVIsChecking SVI StatusFirst Hop Redundancy Protocols (FHRPs)Using First Hop RedundancyVerifying HSRP OperationAlternatives to HSRPHSRP, VRRP, and GLBP Diagnostic CommandsDemo - Checking Connectivity & Show CommandsDemo - First-Hop Redundancy ProtocolChapter 04 Review1h 14m

Chapter 05 - Maintaining and Troubleshooting Routing SolutionsMaintaining and Troubleshooting Routing SolutionsRouting and Routing Data StructuresUsing IOS Commands to Verify Routing FunctionsIGP Routing Protocol ReviewEIGRP ReviewMonitoring EIGRP with show CommandsMonitoring EIGRP with debug CommandsEIGRP Troubleshooting ExampleOSPF Review: Process and OperationOSPF Review: Data StructuresOSPF Review: Network Areas and LSAsOSPF Review: Information Flow Within an AreaOSPF Review: Information Flow Between AreasMonitoring OSPF with show CommandsMonitoring OSPF with debug CommandsOSPF Troubleshooting ExampleRoute Redistribution ReviewVerifying and Troubleshooting Route PropagationOSPF to EIGRP Redistribution Troubleshooting ProcessBGP OverviewBGP Route Processing and Data StructuresBGP Routing Information Flow: PeeringMonitoring BGP with show CommandsMonitoring BGP with debug CommandsBGP Troubleshooting ExampleDemo - Troubleshooting Various Dynamic Routing ProtocolsChapter 05 Review1h 34mChapter 06 - Troubleshooting Addressing ServicesTroubleshooting Addressing ServicesNAT/PAT Operation ReviewTroubleshooting NAT/PAT IssuesNAT/PAT Troubleshooting Example 1: Routing IssueUsing NBAR for Protocol DiscoveryNAT/PAT Troubleshooting Example 2: Incorrect Access ListDHCP OverviewDHCP Overview: Client–Server CommunicationDHCP Overview: Client–Server Communication – DHCP Packets (Message Types)Common DHCP Troubleshooting Issues: Three DHCP Roles a Router May TakeDHCP Troubleshooting Issues: DHCP Relay AgentDHCP Troubleshooting Issues: DHCP Parameters and OptionsDHCP Troubleshooting IssuesDHCP Troubleshooting CommandsDHCP Troubleshooting Example 1: Problems After a Security AuditDHCP Troubleshooting Example 2: Duplicate Client IP AddressesDHCP Troubleshooting Example 3: Relay Agent IssueIPv6 Routing Overview – IPv6 vs IPv4Troubleshooting IPv6 Issues - Cont.IPv6 Troubleshooting – show Commands1h 31m

IPv6 Troubleshooting – debug CommandsIPv6 Troubleshooting Example 1: IPv6 Routing ProblemsIPv6 Troubleshooting Example 2: Redistribution IssueIPv6 Troubleshooting Example 3: OSPFv3 Configuration ErrorsIPv6 Troubleshooting Example 4: OSPFv3 over 6to4 TunnelIPv6 Troubleshooting Example 4 - SummaryDemo - IP Addressing NAT and DHCPChapter 06 ReviewChapter 07 - Troubleshooting Network Performance IssuesTroubleshooting Network Performance IssuesCisco Application Networking Services (ANS) OverviewANS Optimization CycleANS Baselining and Application Optimization ToolsNetFlow OverviewNetFlow ConfigurationNetFlow Statistics ExampleCisco IP SLA OverviewCisco IP SLA ConfigurationCisco IP SLA Configuration ExampleCisco IP SLA ResponderNBAR OverviewUsing NBAR for Protocol DiscoveryNBAR PDLMsSLB OverviewQoS and AutoQoS OverviewAutoQoS Autodiscovery and ConfigurationAutoQoS Discovery ResultsCommon NetFlow IssuesCommon IP SLA IssuesCommon NBAR IssuesCommon AutoQoS IssuesNetwork Application Service Troubleshooting CommandsNetFlow Troubleshooting ExampleIP SLA Troubleshooting ExampleAutoQoS Troubleshooting ExampleIdentifying Switch Performance IssuesAutoQoS Troubleshooting Example – Cont.Identifying Switch Performance Issues – Cont.Switch Port/Interface IssuesTroubleshooting Example: DuplexAutomatic Medium-Dependent Interface Crossover (Auto-MDIX)Switch Forwarding HardwareTroubleshooting TCAM ProblemsControl Plane: Troubleshooting High CPU Load on SwitchesTroubleshooting High Switch CPU LoadDHCP IssuesSpanning-Tree IssuesHSRP IssuesSwitch Performance Troubleshooting Issue 1: Speed and Duplex SettingsSwitch Performance Troubleshooting Issue 2: Excessive Broadcasts1h 39m

Switch Performance Troubleshooting Issue 3: Excessive SecurityTroubleshooting High Router CPU LoadHigh Router CPU Load: ARP InputHigh Router CPU Load: Net Background, IP Background and TCP Timer ProcessesTroubleshooting Switching PathsTroubleshooting CEFIOS Tools to Analyze Packet ForwardingAnalyzing Packet Forwarding: Step 1Analyzing Packet Forwarding: Step 2Analyzing Packet Forwarding: Step 3Analyzing Packet Forwarding: Step 4Analyzing Packet Forwarding: Step 5Analyzing Packet Forwarding: Step 6Analyzing Packet Forwarding: Step 7Troubleshooting Router Memory IssuesDemo - Network PerformanceChapter 07 ReviewChapter 08 - Troubleshooting Converged NetworksTroubleshooting Converged NetworksSection 1 OverviewCommon Wireless Integration IssuesStandalone Wireless SolutionSplit MAC or Lightweight SolutionWireless Integration IssuesWireless Integration Issue ToolsWLAN Connectivity Troubleshooting Example 1: Misconfigured TrunkWLAN Connectivity Troubleshooting Example 2: Duplex and Trust IssuesWLAN Connectivity Troubleshooting Example 3: LWAPP Denied by New SecurityWLAN Connectivity Troubleshooting Example 4: DHCP IssuesSection 2 OverviewUnified Communications Integration IssuesUnified Communications DesignUnified Communications ComponentsUnified Communications – IP PhonesIP Phone Boot ProcessVLAN ConsiderationsTroubleshooting ScenariosModular QoS CLI (MQC)QoS PolicyUnified Communications CommandsConverged Network Troubleshooting CommandsExample 1: Port Security and Voice VLAN IssuesVoice Troubleshooting Example 1 – Cont.Example 2: Invalid Marking of VoIP PacketsVoice Troubleshooting Example 2 – Cont.Example 3: ACL and Trunk IssuesVoice Troubleshooting Example 3 – Cont.Section 3 OverviewTroubleshooting Video Issues in a Converged Network: Video Application Types1h 2m

Common Video-Integration IssuesMulticast OperationTroubleshooting Video Integration IssuesVideo-Integration Troubleshooting Example 1: Performance Issues Due to STP TopologyVideo Troubleshooting Example 1 – Cont.Example 2: IP Multicast Configuration ErrorVideo Troubleshooting Example 2 – Cont.Demo - Troubleshooting Converged NetworksChapter 08 ReviewChapter 09 - Maintaining and Troubleshooting Network Security ImplementationsMaintaining and Troubleshooting Network Security ImplementationsSecurity Features Review – Functional PlanesTroubleshooting Management Plane SecurityManagement Plane Security: AAAManagement Plane Security: RADIUS & TACACS Securing the Management PlaneSecuring the Management Plane - ACSManagement Plane Authentication: AAA/TACACS Management Plane Authorization: AAA/TACACS Management Plane Accounting: AAA/TACACS Management Plane: Common TACACS IssuesManagement Plane: TACACS Issues – Cont.Management Plane: Common RADIUS IssuesManagement Plane: RADIUS Issues – Cont.Troubleshooting Control Plane SecuritySecuring the Control Plane: OverviewTroubleshooting Data Plane SecurityUsing IOS Stateful Packet Inspection (SPI)IOS SPI ExampleZone-Based Policy Firewall OverviewZPF Example TopologyZPF Configuration Example: ProcessZPF Configuration Example: CommandsOther Methods of Securing the Data PlaneTroubleshooting Data Plane Security – Cont.Troubleshooting ZPF Using Syslog - ExampleTroubleshooting ZPF Using show CommandsBranch Office and Remote Worker ConnectivityBranch Office & Remote Worker Connectivity IssuesBranch Office Connectivity Issues with GREBranch Office Connectivity Issues – Cont.Remote Connectivity Troubleshooting CommandsBO/RW Troubleshooting Example – Main Diag.BO/RW TSHOOT Example 1: Address Translation ErrorBO/RW TSHOOT Example 2: Crypto Map ACL ErrorBO/RW TSHOOT Example 3: GRE Config. ErrorBO/RW TSHOOT Example 4: Recursive Routing IssueBO/RW TSHOOT Example 5: ACL Denies IPsecChapter 09 Review44m

Chapter 10 - Review and Preparation for Troubleshooting Complex EnterpriseNetworksReview and Preparation for Troubleshooting Complex Enterprise NetworksSection 1 OverviewReview of Key Topics: Chapter 1Review of Key Topics: Chapter 2Review of Key Topics: Chapter 3Review of Key Topics: Chapter 4Review of Key Topics: Chapter 5Review of Key Topics: Chapter 6Review of Key Topics: Chapter 7Review of Key Topics: Chapter 8Review of Key Topics: Chapter 9Section 2 OverviewNetwork Element and Protocol RelationshipsTroubleshooting Tips and SuggestionsDemo - Reviewing Routing and Switching Concepts Particular to TroubleshootingChapter 10 ReviewCourse Closure57mTotal Duration: 11h 37m

DHCP Troubleshooting Commands DHCP Troubleshooting Example 1: Problems After a Security Audit DHCP Troubleshooting Example 2: Duplicate Client IP Addresses DHCP Troubleshooting Example 3: Relay Agent Issue IPv6 Routing Overview – IPv6 vs IPv4 Troubleshooting IPv6 Issues - Cont. IPv6