Troubleshooting, General NAM Issues | Cisco Systems 5 specification

A P P E N D I X A

Troubleshooting

This appendix addresses some common issues you might encounter while using NAM Traffic Analyzer 5.0.

It contains the following sections:

•General NAM Issues, page A-1

•Error Messages, page A-2

•Packet Drops, page A-2

•NAM Not Responding, page A-2

•NAM Behavior, page A-3

•WAAS Troubleshooting, page A-3

General NAM Issues

Q.What information should I collect and what else should I do when the NAM is not responding?

A.Determine the answers to the following questions and gather the following information:

•Does session from the switch/router CLI work?

•Does ping over EOBC (127 subnet) work?

•Does ping to the management IP address work?

•Collect output of show tech-supportcommand from both the NAM and the switch or router.

•Collect core files.

•Check if NAM is seated correctly in chassis

•Reset NAM

•Reset into maintenance image or helper

•Clear the configuration

•Reinstall the application image (possibly with the repartition option --install)

User Guide for the Cisco Network Analysis Module Traffic Analyzer, 4.1

	OL-19530-02	A-1

Image 217

Cisco Systems 5 manual Troubleshooting, General NAM Issues

Contents

Text Part Number OL-22617-01 Americas HeadquartersPage N T E N T S Span Network Sites URL Nbar System Administration Resources Audit Trail Understanding Traffic Patterns at the Network Layer Chapter Overview About This Guide Conventions AudienceConvention Boldface font Obtaining Documentation and Submitting a Service Request Xiv A P T E R Introducing NAM Traffic Analyzer Logical Site Dashboards Standards-Based NBI New Application Classification Architecture Historical Analysis NetFlow v9 Data Export Overview of the NAM Platforms Snmp v3 Support -- NAM to Router/Switch SupportWS-SVC-NAM-1-250S WS-SVC-NAM-2-250S Cisco Branch Routers Navigating the User Interface LoggingCommon Navigation and Control Elements Menu Bar Detailed Views Quick Capture Context Menus Interactive Report Chart View / Grid View Mouse-Over for Details Zoom/Pan Charts Bytes / Packets Sort GridStatistics Context-Sensitive Online Help Understanding How the NAM Works Configuration/guide/nde.html Configuration/guide/span.htmlPorts VLANs Understanding How the NAM Uses VACLs Understanding How the NAM Uses SpanModule Cisco IOS Software Guide/span.html Guide/vacl.html Understanding How the NAM Uses NDE Understanding How the NAM Uses Waas Action Description GUI Location User Guide Location Configuration Overview Setup Data Export Administration SystemSetup Network Sites Setup Alarms Actions Administration Users Configuring and Viewing DataCapture Packet Capture/Decode Cisco Waas NAM Virtual Service Blade Traffic Analysis Default Functions Application Response Time Metrics Voice Signaling/RTP Stream MonitoringAnalyze Media Voice Call Statistics Traffic Usage Statistics TrafficAbout Span Sessions SPAN, Data Sources, Hardware Deduplication, Method Usage Notes Switch CLINAM Traffic Analyzer the NAM GUI Supervisor portCopyTable Snmp Column Description State Description Creating a Span Session Field Description Editing a Span Session Choose Setup Traffic Span SessionsDialog Box Deleting a Span Session Data SourcesSPAN, ERSPAN, VACL, NetFlow, WAAS, Or Disabled Router or switch or WAE deviceFields are explained in -7, NAM Data Sources Data Port if it is a local physical port, or the IP address Click Setup Traffic NAM Data Sources Enabling Auto-Creation of Erspan Data Sources Using the CLI Creating Erspan Data Sources Using the Web GUI Disabling Auto-Creation of Erspan Data Sources Using the CLI Creating Erspan Data Sources Using the CLI Enter the device ID from Step Deleting Erspan Data Sources Using the Web GUIEnter the name you would like for the data source required Use the no data-sourcecommand to delete the data source Deleting Erspan Data Sources Using the CLIClick the Delete button along the bottom of the window Use the no device command to delete the device Configuring Erspan on DevicesSample Configuration of Erspan Source Sample Configuration of Erspan Destination Sample Configuration Configuring Vacl on a WAN Interface NetFlow Configuring Vacl on a LAN Vlan Understanding NetFlow Flow Records Understanding NetFlow Interfaces Managing NetFlow Data Sources Configuring NetFlow on DevicesOutput Interface Are Flows Reported? For Devices Running Cisco IOS For NAMs Located in a Device Slot Creating NetFlow Data Sources Using the Web GUI Enabling Auto-Creation of NetFlow Data Sources Using the CLI Snmp Credentials Creating NetFlow Data Sources Using the CLI Security Level Deleting NetFlow Data Sources Using the CLI Deleting NetFlow Data Sources Using the Web GUI Testing NetFlow Devices Contact information for the device Understanding WaasSnmp read test result. For the local device only Configure a Client data source Setting DescriptionPoint, configure a Client WAN data source Configure a Server WAN data source Monitoring WAN Data Sources Monitoring Client Data SourcesMonitoring Server Data Sources Server data source Deployment Scenarios Managing Waas DevicesDeployment Scenario Adding Data Sources for New Waas Device Choose Setup Traffic NAM Data Sources Deleting a Waas Data Source Editing Waas Data Sources Hardware Deduplication Choose Setup Traffic Hardware DeduplicationAuto Create of New Waas Devices Alarm Actions AlarmsAlarm Actions, Thresholds, User Scenario, Alarm Action Configuration Deleting Alarm Actions Editing Alarm ActionsChoose Setup Alarms Actions Name of the threshold ThresholdsApplication associated with this threshold Site associated with this threshold Alarm Summary dashboard Monitor Overview Alarm Summary Setting Host ThresholdsChoose Setup Alarms Thresholds Field Setting Conversation Thresholds Dashboard Monitor Overview Alarm Summary , where you Setting Application Thresholds Setting Response Time Thresholds Give the Dscp Alarm Threshold a name Setting Dscp ThresholdsDashboard Monitor Overview Alarm Summary, where you Chose a Dscp value from the list Give the RTP Streams Alarm Threshold a name Setting RTP Stream ThresholdsHigh, Low, or High and Low alarms Alarm actions Setting Voice Signaling Thresholds Dashboard Monitor Overview Alarm Summary , where you can Setting NDE Interface ThresholdsGive the NDE Interface Alarm Threshold a name Choose a data source from the list Deleting a NAM Threshold Editing an Alarm Threshold User Scenario Data ExportNetFlow NetFlow, Scheduled Exports, Custom Export, Choose Setup Data Export NetFlow Viewing Configured NetFlow ExportsNetFlow Exports screen appears shown in Figure Description of the NetFlow Export Configuring NetFlow Data ExportPort number of the device to be exported to Valid characters 1-9. Length Min 1, Max Application Record types supported by NAM for NetFlow areHost ART Client Server Application Editing NetFlow Data Export Scheduled ExportsClick Editing a Scheduled Export Choose Setup Data Export Scheduled ExportsDeleting a Scheduled Export Custom Export Managed DeviceDevice Information Total time the switch has been running Choose Setup Managed Device Device InformationName of the network administrator for the router Name of the Snmp read-write community string configured on Nbar Protocol Discovery Sites NetworkField / Operation Description Sites, NDE Interface Capacity, Dscp Groups, Specifying a Site Using WAE devices Waas Data Sources Specifying a Site Using SubnetsDefinition Rules Viewing Defined Sites Specifying a Site Using Multiple RulesResolving Ambiguity Overlapping Site Definitions Defining a Site Shows if the site is Enabled or DisabledName of the site Description of what the site includes Unique text string for naming a site See -7for an exampleOptional text string for describing site Subnet Detection Subnet Detection Editing a SiteEnter an IPv4 or IPv6 address Dscp Groups NDE Interface CapacityCreating an NDE Interface Creating a Dscp Group Choose Setup Network Dscp GroupsField Description Usage Notes Through Dscp AF/EF/CS Format Bit Field Format Editing a Dscp Group ClassificationDeleting a Dscp Group 8shows an example of what the screen may look like Applications Creating a New Application Choose Setup Classification Applications That list, highlight it and click the left arrow Editing an ApplicationRepeat through as many times as desired Application Groups Choose Setup Classification Application GroupsDeleting a Protocol Creating an Application Group Editing an Application Group URL-based ApplicationsDeleting an Application Group To edit an application group Example Choose Setup Classification URL-based Applications Deleting a URL-based Application Editing a URL-Based Application Monitoring Choose Setup Classification EncapsulationsEncapsulations Aggregation Intervals, Response Time, Voice, RTP Filter, Aggregation Intervals Choose Setup Monitoring Aggregation IntervalsURL, Waas Monitored Servers, Response Time Choose Setup Monitoring Response TimeShort-Term Long-Term Normal Minimum Monitor Setup Window Choose Setup Monitoring VoiceVoice Field Appliance RTP Filter Choose Setup Monitoring RTP Filter10,000 500 1,750 000 1,000 250 Enabling a URL Collection Changing a URL Collection Enabling a URL Collection Choose Setup Monitoring URLDisabling a URL Collection Element Description Usage Notes Changing a URL CollectionTo change a URL collection URL page -10displays Waas Monitored Servers Choose Setup Monitoring URL CollectionDisabling a URL Collection Adding a Waas Monitored Server Deleting a Waas Monitored Server Choose Setup Monitoring Waas ServersTo delete a Waas monitored server data source Monitor Navigation,Analyze Interactive Report Navigation Saving Filter Information Saving Filter Parameters Traffic Summary Response Time Summary Site Summary Alarm Summary Top N Hosts by Site and Alarm Count Top N Sites by Alarm CountTop N Applications by Alarm Count Top N Applications by Site and Alarm Count Analyzing Traffic Hosts Detail Application Applications Detail Host Application group set of applications that can be NDE Interface Traffic AnalysisMonitored as a whole Traffic rate number of bytes per second Dscp Detail Viewing Interface DetailsDscp value Applicable site or Unassigned if no site Application Groups Detail Viewing Collected URLs URL HitsFiltering a URL Collection List Viewing Collected URLs Filtering a URL Collection List Network Conversation Host ConversationsTop Application Traffic Top Application Traffic Application Traffic By Host WAN OptimizationTop Talkers Detail Conversation Multi-Segments Application Performance Analysis NAM Application Response Time Measurements Response Time Metric Description 7lists and describes the ART metrics measured by NAM Metric Description Network Response Time Application Response TimeNetwork Client Response Time Server Response TimeClient-Server Response Time Server Application Responses Detailed Views Server Application Transactions Server Application Transactions Server Network Responses Client-Server Application Responses Client-Server Application Transactions Server-response packet, excluding retransmission time Client-Server Network ResponsesPacket as observed at NAM probing point Interface, Interfaces Stats Table InterfaceHealth, NBAR, Health Switch HealthInterface Statistics Over Time Chassis Information Chassis HealthCPU usage Backplane Utilization Crossbar Switching Fabric Ternary Content Addressable Memory Information Router Health Router Health Router Information Current state of the power supply being instrumented Information on how to contact this personMedia Time in hundredths of a second since the network management Purpose RTP StreamsRTP Stream Information RTP Stream Stats Summary Monitoring RTP Streams Voice Call StatisticsRTP Stream Stats Details Called number as it appears in the signaling protocol Calling number as it appears in the signaling protocolCalls Table Inspecting call signaling protocol From inspecting the call signaling protocolTime when the call was detected to start Time when the call was detected to end Field Purpose RTP Conversation Header Synchronization source number as it appear in the RTPNAM calculated score that takes into account Duration of the stream OL-22617-01 Quick Capture Capturing and Decoding Packet Data Sessions Name of the capture session Viewing Capture SessionsMany times as necessary Size of the session Operation Description Configuring Capture SessionsChoose Capture Packet/Capture Decode Sessions Name of the capture Enter a capture name Configure Capture Session Window Maximum Capture Session Sizes for NAM Platforms Administration System Capture Data StorageMaximum Session NAM Platform Size Maximum Session Software FiltersNAM Platform Size 300 MB Choose Capture Packet Capture/Decode Sessions Creating a Software FilterSoftware Filter Dialog -4 displays Default if blank is IPv4 address in dotted-quad format n.n.n.n, where n is 0 toFor MAC address, enter hh hh hh hh hh hh, where hh is a Hexadecimal number from 0 to 9 or a to f. The default is Choose GTP.IPv6 for IPV6 address for tunneled packet over To edit software capture filters Editing a Software Capture Filter To cancel the changes, click Cancel Configuring a Hardware FilterHardware Assisted Filters Vlan and IP IP and TCP/UDP IP and Payload Data List is also shown in Figure Vlan and IP IP and Payload Data IP and TCP/UDP Payload Data Files Delete files Display the packets in a file Analyzing Capture Files Error ScanDisplays a graphic image of network traffic KB/second Displays packets and bytes transferred for each protocol Choose Capture Packet Capture/Decode Files Downloading Capture Files Deleting Multiple Files Deleting a Capture File Stop packet loading Viewing Packet Decode InformationLoad and decode the previous block of packets from the NAM Load and decode the next block of packets from the NAM Browsing Packets in the Packet Decoder Choose a Filter ModeFiltering Packets Displayed in the Packet Decoder Choose an Address Filter Define a Protocol Filter Viewing Detailed Protocol Decode Information Custom Display Filters Using Alarm-Triggered CapturesCreating Custom Display Filters To create custom display filters Custom Decode Filter Dialog Box See Tips for Creating Custom Decode Filter Expressions Tips for Creating Custom Decode Filter ExpressionsOperator Meaning Format Field Filter By Format Editing Custom Display FiltersExamples of Custom Decode Filter Expressions Choose Capture Packet Capture/Decode Display Filters To delete custom display filters Deleting Custom Display Filters OL-22617-01 System Administration User and System Administration Resources Choose Administration System Network ParametersNetwork Parameters Snmp Agent Working with NAM Community Strings Choose Administration System Snmp AgentCreating NAM Community Strings Snmp Agent Dialog Box displays System Time Testing the Router Community StringsDeleting NAM Community Strings To delete the NAM community strings Choose Administration System System Time Synchronizing the NAM System Time with the Switch or RouterSynchronizing the NAM System Time Locally Clock set hhmmss mm/dd/yyyy Configuring the NAM System Time with an NTP Server Mail SettingChoose Administration System E-Mail Setting Choose Administration System Web Data Publication To enable Web Data PublishingWeb Data Publication Capture Data Storage Configuring the NFS Storage Location on the NAM Configuring the NFS ServerCreating NFS Storage Locations Editing NFS Storage Locations Creating iSCSI Storage Locations ISCSI target name configured on the remote iSCSI serverEditing iSCSI Storage Locations Name of the remote storage entry Snmp Trap Setting Syslog SettingChoose Administration System Syslog Setting Choose Administration System Snmp Trap Setting Editing a NAM Trap Destination PreferencesDeleting a NAM Trap Destination System Alerts DiagnosticsAudit Trail System Alerts, Audit Trail, Tech Support, Choose Administration Diagnostics Tech Support Choose Administration Diagnostics Audit TrailTech Support Downloading Core Files Recovering Passwords User AdministrationPrivilege Access Level Local Database Creating a New User Choose Administration Users Local DatabaseTo create a new user Editing a User Choose the Administration Users Local DatabaseDeleting a User Field Usage Notes Establishing TACACS+ Authentication and Authorization Click Network Configuration Click Add Entry Configuring a Cisco ACS TACACS+ ServerFor Windows NT and 2000 Systems Click Submit/Restart Adding a NAM User or User Group Configuring a Generic TACACS+ Server Parameter Enter Current User Sessions NAM Traffic Analyzer 5.0 Usage Scenarios Deploying NAMs in the Branch DeploymentDeploying NAMs for Voice/Video applications Deploying NAMs for WAN Optimization Creating Custom Applications Autodiscovery Capabilities of NAMIntegrating NAM with Third Party Reporting Tools Understanding Traffic Patterns at the Network Layer Integrating NAM with LMSSee Dscp Groups, See Application Response Time, See Thresholds, Using NAM for Problem Isolation Troubleshooting Using NAM for SmartGrid Visibility General NAM Issues Troubleshooting Does the session from the switch/router work? Error MessagesPacket Drops NAM Not Responding NAM Behavior Waas Troubleshooting OL-19530-02 Module Object Identifier OID and Description Source Supported MIBs Objects10 Power, Temperature and Fan Status Mib-21.rmon16.tokenRing10.ringStationConfig RFCMib-21.rmon16.tokenRing10.ringStation RFC Mib-21.rmon16.tokenRing10.ringStation RFC OrderTable3 CiscoMgmt9.ciscoCat6kCrossbarMIB217.cisco Cisco9.workgroup5.ciscoStackMIB1.ciscoStatckCat6kXbarMIBObjects1 Crossbar statistics OL-22617-01 Downloading to a file Capture settings, configuringCustom display filters Creating IN-2 Configuring as datasource Ipesp IPIP4 Alarm thresholds IN-4 Creating Deleting Editing Spanning, directing traffic for Server, configuring to support NAM Authentication and authorization, establishing See Virtual Switch Software Waas data sources Voice data Collecting Viewing Voice signaling thresholds