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Cisco Systems Cisco IOS XR manual OL-10957-02

Models: Cisco IOS XR

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Chapter 6 CLI Tips, Techniques, and Shortcuts

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Cisco Systems Cisco IOS XR manual OL-10957-02

Contents

Cisco IOS XR Getting Started Guide Americas HeadquartersCisco IOS XR Getting Started Guide N T E N T S Restrictions Verifying the Spanning Tree Routing Policy Language Line and Policy Limits Contents CLI Tips and Shortcuts Configuration Failures During a Commit Operation ViiiRevision Date Change Summary Changes to This DocumentAbout This Document Intended Audience Organization of the DocumentRelated Documents This document contains the following chaptersObtaining Documentation ConventionsCisco.com ConventionDocumentation Feedback Cisco Product Security OverviewProduct Documentation DVD Ordering Documentation XiiXiii Reporting Security Problems in Cisco ProductsProduct Alerts and Field Notices Xiv Obtaining Technical AssistanceCisco Technical Support & Documentation Website Obtaining Additional Publications and Information Submitting a Service RequestDefinitions of Service Request Severity Xvi Contents Supported Standalone System ConfigurationsCisco CRS-1 Multishelf System Overview Single-FCC Multishelf System Two-FCC Multishelf System Four-FCC Multishelf System Command-Line Interface Router Management InterfacesCraft Works Interface Extensible Markup Language APISelecting and Identifying the Designated Shelf Controller Simple Network Management ProtocolSelecting and Identifying the DSC on Cisco CRS-1 Routers Connecting to the Router Through the Console Port Communication Ports on the RP for a Cisco CRS-1 16-Slot LCC Card status green=OK To connect to the router, perform the following procedure Start the terminal emulation program Press EnterCommand or Action Log in to the routerWhere to Go Next Command or Action PurposeIf the router has no configuration, the router displays If the router has been configured, the router displaysPrerequisites Software RequirementsEstablish a connection to the DSC Console port Bringing Up and Configuring a Standalone RouterHardware Prerequisites and Documentation Examples ReturnVerifying the System After Initial Bring-Up ExampleExamples of show Commands Show version CommandShow environment options Show environment CommandRP/0/RP0/CPU0router# show environment temperatures Show platform Command Show redundancy Command Multishelf System Restrictions Hardware RequirementsPreparing a Rack Number Plan Information About Bringing Up a Multishelf SystemBringup Overview Chassis Serial ID Rack Number DSC in a CRS-1/M-F1 Multishelf SystemSample Rack Number Plan for a Two-FCC Multishelf System Location of the Serial Number on a Fabric Card Chassis Location of the Serial Number on a Line Card Chassis Configuring the External Cisco Catalyst 6509 Switches Hardware Requirements PrerequisitesSoftware Requirements Restrictions Before You BeginQuantity Description Part Catalyst 6500 Sup720 Compact Flash Mem 256MBRevision number Information About the Catalyst Switch ConfigurationConfiguring the Catalyst Switches Switchport access vlan Sets the forward-delay timer for all MST instances on Sets the maximum-age timer for all MST instances onSets the spanning tree priority for the switch Primary Catalyst switch should be configuredExample Single-FCC Multishelf System Configuration Default selectionExits interface configuration mode and returns to global Configuration modeExample Four-FCC Multishelf System Configuration Switches in a four-FCC multishelf systemCAT6k-2config# interface gigabitethernet 0/1 Router# show running-configSwitchport Shutdown CAT6k-1#show interfaces status Verifying the Catalyst SwitchVerify the Interface Status Router# show interface gi 6/1 inc Gig Verify that the Links are Not UnidirectionalCAT6k-1#show spanning-tree Integrated Switch System Prerequisites for an Integrated Switch SystemIntegrated Switch Overview Restrictions for an Integrated Switch SystemInformation About the Integrated Switch Implementation Integrated Switch Functions Rack Type DescriptionImplementing the Integrated Switch System Integrated Switch Control Network TopologyLED Definitions for the Integrated Switch System Implementing the Integrated Switch Through RommonImplementing the Integrated Switch in Cisco IOS XR Booting Up the Integrated Switch Network6lists the Rommon switch configuration Reenabling the PortsVerifying the Control Ethernet Connection Verifying the Port Statistics Verifying Bidirectionality Verifying Spanning Tree Protocol InformationBringing Up and Configuring Rack Admin Configure Dsc serial serial ID rackPlanning information including DSC placement Places the router in administration configuration modeLCC containing the DSC should be configured with Want to configure as RackWhen each subsequent LCC comes on line, the DSC Enter this command for every FCC in the multishelfWhen each subsequent rack comes on line, the DSC Commits the target configuration to the router runningConfigures a plane to operate in an FCC slot Enter this command sequence for each of the eight fabricYou want to configure Fabric plane you are configuring. Valid slot numbers areGroup cisco-support F0/SM0/FM Apply power to all FCCs Bringing Up and Verifying FCCsShow controllers fabric rack all detail Show controllers fabric rack all detail Show controllers fabric plane all detailBringing Up and Verifying the Non-DSC LCC Show controllers fabric connectivity all detailExit Verifying the Spanning Tree Show platform command must be executed Enter this command for each RP and Scge cardSwitched Interface column, one GE port Expected Catalyst switch, as defined by the CatalystVerify the Spanning Tree Detail location 1/rp1/cpu0 Detail location 0/rp1/cpu0Detail location 1/rp0/cpu0 Detail location F0/SC1/cpu0 Verifying Fabric Cabling ConnectionsDetail location F0/SC0/cpu0 LED State Color Meaning If the LED is off, it can mean10 6 11 7 OIM11 OIM0 Where to Go Next OL-10957-02 Secure Domain Routers Chapter contains the following sectionsConnecting and Communicating with the Router 3shows the DRP Plim connectionsRemote CLI, CWI XML, or Snmp Card status green=OK Communication Ports on the DRP Plim Establishing a Connection Through the Console Port Summary Steps Establishing a Connection Through a Terminal Server Standalone router is starting up for the first time, seeStandalone Router. If a multishelf system is starting Up for the first time, see , Bringing UpInstall and configure the terminal server Press Enter Log in to the routerReplace access-server-address with the IP address Root-system username and password when promptedEstablishes a Telnet session with the terminal server Terminal server, and replace port with the terminalLogging In to a Router or an SDR Telnet ManagementEthernetInterfaceIPaddressCLI Prompt Prompt Syntax Components DescriptionUser Access Privileges User Groups, Task Groups, and Task IDsCommand Description Predefined User GroupsUser Group Privileges PersonnelShow aaa usergroup group-name Show user tasksShow user all Aaa usergroup root-system User group root-system Inherits from task group Root-systemNavigating the Cisco IOS XR Command Modes Identifying the Command Mode in the CLI Prompt Command Mode Navigation Example,Example Summary of Common Command ModesCommand Mode Description Not available on most routers Entering Exec Commands from a Configuration Mode Password recovery, and other diagnostic tasksCommand Mode Navigation Example Managing Configuration Sessions 6illustrates the two-stage configuration processDisplaying the Active Configuration Sessions RP/0/RP0/CPU0router# show configuration sessionsStarting a Configuration Session RP/0/RP0/CPU0routerconfig-if#ipv4 address 10.10.10.10Starting an Exclusive Configuration Session Displaying Configuration Details with show CommandsDisplaying the Running Configuration Following sections describe the following tasksNtp Displaying a Sanitized Version of the Running Configuration Telnet ipv4 server max-servers 5 username removed Displaying the Target Configuration Displaying a Combined Target and Running Configuration Displaying Configuration Error Messages and Descriptions Configuration failed load commandLoading an Alternative Configuration at System Startup Saving the Target Configuration to a FileLoading the Target Configuration from a File Clearing All Changes to a Target Configuration Committing Changes to the Running ConfigurationShow configuration commit list detail command Commit best-effortCommit comment line Commit confirmedReloading a Failed Configuration RP/0/0/CPU0routerconfig# load configuration failed commitEnding a Configuration Session Exiting a Configuration SubmodeReturning Directly to Configuration Mode from a Submode Preceding example sets the SDR name to Sdrsj Configuring the SDR HostnameAborting a Configuration Session Configuring the Management Ethernet Interface Syntax Components DescriptionDisplaying the Available Management Ethernet Interfaces Management Interface Interface Name ExamplePrerequisites Configuring the Management Ethernet InterfaceConfigure Interface MgmtEthrack/slot/CPU0/port Enters global configuration mode Enters interface configuration mode and specifiesCommand parameters are described in Table Exits the Management Ethernet interface configurationEnds the configuration session and returns to Exec Displays the interface details to verify the settingsRP/0/RP0/CPU0routerconfig-if#ipv4 address 10.1.1.1 Show interfaces MgmtEth rack/ slot/CPU0/ portManually Setting the Router Clock Clock update-calendar Show clockRelated Topic Document Title Commit EndClock timezone command should be entered Enter the show clock commandFor detailed information about setting the system Clock, including the configuration of a network timeRelated Documents Configuring Additional Router Features Configuring Telnet, HTTP, and XML Host Services Following example, the domain name and DNS are configuredComplete descriptions of the domain services CommandsManaging Configuration History and Rollback Following example, the host services are enabledInstallation and activation of the Manageability Descriptions of the Telnet commandsDisplaying the Configuration Changes Recorded in a CommitID RP/0/RP1/CPU0router# show configuration commit listRP/0/RP1/CPU0routeradmin# show configuration commit list Displaying the CommitIDsRP/0/RP1/CPU0router# show configuration rollback changes to Previewing Rollback Configuration ChangesRP/0/RP1/CPU0routeradmin# show configuration commit changes RP/0/RP0/CPU0router# rollback configuration last Rolling Back the Configuration to a Specific Rollback PointRP/0/RP1/CPU0router# rollback configuration to RP/0/RP1/CPU0router# show configuration commit changes ? RP/0/0/CPU0routerconfig# load rollback changes to RP/0/0/CPU0routerconfig# load rollback changesRP/0/0/CPU0router# clear configuration commit diskspace Deleting CommitIDsConfiguring Logging and Logging Correlation Logging Destination Command Global Configuration ModeLogging Locations and Severity Levels Level DescriptionAlarm Logging Correlation Configuring Basic Message LoggingLogging trap severity Logging console severity Commit End Show loggingRP/0/RP0/CPU0routerconfig# logging RP/0/RP0/CPU0routerconfig# logging trap debugging LevelsWhen a severity level is specified, only messages at Specifies a syslog server host to use for system loggingFollowing example, basic message logging is configured Configuration of system loggingCommands used to configure logging Configuration of alarm correlation and generatingCreating and Modifying User Accounts and User Groups Configuring User Accounts Creating Users and Assigning GroupsEnters username configuration submode Specifies a password for the user named in StepUse the secret command to create a secure login Password for the user names specified in StepConfiguration Limiting Static Route Configuration LimitsDefault Absolute Configuration Command Limit ModeIS-IS Configuration Limits OSPFv2 and v3 Configuration LimitsLimit Mode Exec Mode Maximum-redistributed-prefixes n Show isis adjacencyMaximum paths n Show running-config router ospf Maximum interfaces n Show ospfMaximum redistributed-prefixes Show ospf If the maximum pathsMaximum Routes Redistributed into Ospf Feature Limit Description BGP Configuration LimitsDefault Absolute Maximum Configuration Command Routing Policy Language Line and Policy Limits RP/0/RP1/CPU0router# show rpl maximum Multicast Configuration Limits Mpls Configuration LimitsDefault Absolute Show Current Settings Maximum Command Limit Configuration Command Exec ModeOther Configuration Limits CLI Tips, Techniques, and Shortcuts CLI Tips and ShortcutsEntering Abbreviated Commands Using the Question Mark ? to Display On-Screen Command HelpThat apply to the keyword and brief explanations Generally, uppercase letters represent variables argumentsCompleting a Partial Command with the Tab Key Identifying Command Syntax ErrorsEditing Command Lines that Wrap Displaying System Information with show CommandsUsing the no Form of a Command Common show Commands Command Description Command ModeBrowsing Display Output when the --More-- Prompt Appears Halting the Display of Screen OutputRedirecting Output to a File Narrowing Output from Large ConfigurationsRP/0/RP1/CPU0router# show running-config router static RP/0/RP1/CPU0router# show running-config interface pos Filtering show Command OutputUsing Wildcards to Display All Instances of an Interface Adding a Filter at the --More-- Prompt Contains the regular expressionDisplays output lines that contain the regular expression File on the specified deviceUsing Wildcards to Identify Interfaces in show Commands Wildcards, Templates, and AliasesExample Wildcard Syntax DescriptionCreating Configuration Templates RP/0/RP1/CPU0router# show interfaces pos* briefShow running-config template template-name End-templateApplying Configuration Templates Applies the target configuration commands to the runningRP/0/RP0/CPU0router# show running-config Template tmplt1 Show running-config template template-name5defines the alias command syntax AliasesCommand History Keystrokes Used as Command AliasesDisplaying Previously Entered Commands RP/0/0/CPU0routerconfig# alias my-cookie mgmtEth 0/0/CPU0/0Recalling Previously Entered Commands Redisplaying the Command LineCommand or Key Combination Purpose Command or Key Combination RecallsKey Combinations Key Combinations to Move the CursorKeystrokes to Control Capitalization Keystrokes Function Moves the CursorKeystrokes to Delete CLI Entries Transposing Mistyped CharactersEsc, L Esc, U Keystrokes DeletesOL-10957-02 Basic Troubleshooting Commands Additional Sources for InformationShow variables boot Show installShow context and show exception Show controllerUsing the ping Command Next example, an unsuccessful ping attempt is shown Using the traceroute CommandFollowing example, a successful ping attempt is shown Using debug Commands Displaying a List of Debug FeaturesFollowing example, the route for an IP address is displayed RP/0/RP0/CPU0router# tracerouteEnabling Debugging for a Feature Displaying Debugging StatusConfiguration Error Messages Disabling Debugging for a ServiceConfiguration Failures During a Commit Operation Configuration Errors at StartupShow configuration failed command Show configuration failed noerror commandMemory Warnings in Configuration Sessions Understanding Low-Memory Warnings in Configuration SessionsERROR! Memory is in Severe or Critical State Displaying System Memory InformationRemoving Configurations to Resolve Low-Memory Warnings Clearing a Target ConfigurationRemoving Committed Configurations to Free System Memory Heading DescriptionRolling Back to a Previously Committed Configuration Clearing Configuration SessionsVerifying the System Interfaces Interfaces Not Coming UpContacting TAC for Additional Assistance Configure the interfaces, as shown in the following examples RP/0/RP0/CPU0router# show ipv4 interface briefBring the interface up with the following commands ConnectionOL-10957-02 Regular Expressions Character Special Meaning Special CharactersCharacter Pattern Ranges Complex Regular Expressions Using Multipliers Multiple-Character PatternsCharacter Description Ba?bPattern Alternation Anchor CharactersUnderscore Wildcard Parentheses Used for Pattern RecallBc.\1\2 OL-10957-02 Denoted as primary GL-1Into memory at startup Is from 0x0 to 0xFFFF 0 to 65535 in decimalProcesses Client runs in a web browserInstallation or upgrade Have a registered name in the same styleOutgoing channel ReceivedGL-4 Examples of platforms using a GUI. See also CLINeed to provide continuous service GL-5 Provides other information relevant to IP packet processingRIP To boot a node 048,576 bitsStandard and private proprietary branches IP routing informationCard installed and running on the router Battery permanently connectedLoading software images from a network server, such as Tftp Sent to it by a peerGroup of software components installed on the router Interfaces connecting to a Cisco CRS-1 routerSDH frames GL-8GL-9 Delay, and delivery guaranteeData GL-10 Cisco Technical Assistance Center GL-11GL-12 GL-13 GL-14 IN-1 IS-IS MulticastStatic routes IN-2IN-3 DRP Plim illustration PRP-2 illustrationRP for 4-slot and 8-slot LCCs, illustration 1-11,4-4 Low memory warning, removing configurations IN-4IN-5 Maximum-paths commandModule Number displayed in prompt More prompt FCC IN-6IN-7 Show task supported command Show tech-support command 6-6,7-3 Show user commandStatus LEDs IN-8IN-9 Username commandWildcards IN-10