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Cisco Systems Cisco IOS XR manual OL-10957-02

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Appendix A Understanding Regular Expressions, Special Characters, and Patterns

Parentheses Used for Pattern Recall

Cisco IOS XR Getting Started Guide

	A-6	OL-10957-02

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Cisco Systems Cisco IOS XR manual OL-10957-02

Contents

Cisco IOS XR Getting Started Guide Americas Headquarters Cisco 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 Viii Changes to This Document About This DocumentRevision Date Change Summary Related Documents Intended AudienceOrganization of the Document This document contains the following chapters Cisco.com Obtaining DocumentationConventions Convention Product Documentation DVD Ordering Documentation Documentation FeedbackCisco Product Security Overview Xii Reporting Security Problems in Cisco Products Product Alerts and Field NoticesXiii Obtaining Technical Assistance Cisco Technical Support & Documentation WebsiteXiv Submitting a Service Request Definitions of Service Request SeverityObtaining Additional Publications and Information Xvi Contents Supported Standalone System Configurations Cisco CRS-1 Multishelf System Overview Single-FCC Multishelf System Two-FCC Multishelf System Four-FCC Multishelf System Craft Works Interface Command-Line InterfaceRouter Management Interfaces Extensible Markup Language API Selecting and Identifying the Designated Shelf Controller Simple Network Management Protocol Selecting 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 Enter Command or Action Log in to the router If the router has no configuration, the router displays Where to Go NextCommand or Action Purpose If the router has been configured, the router displays Prerequisites Software Requirements Bringing Up and Configuring a Standalone Router Hardware Prerequisites and DocumentationEstablish a connection to the DSC Console port Examples Return Verifying the System After Initial Bring-Up Example Examples of show Commands Show version Command Show environment Command RP/0/RP0/CPU0router# show environment temperaturesShow environment options Show platform Command Show redundancy Command Multishelf System Restrictions Hardware Requirements Information About Bringing Up a Multishelf System Bringup OverviewPreparing a Rack Number Plan Chassis Serial ID Rack Number DSC in a CRS-1/M-F1 Multishelf System Sample 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 Prerequisites Software RequirementsHardware Requirements Quantity Description Part RestrictionsBefore You Begin Catalyst 6500 Sup720 Compact Flash Mem 256MB Information About the Catalyst Switch Configuration Configuring the Catalyst SwitchesRevision number Switchport access vlan Sets the spanning tree priority for the switch Sets the forward-delay timer for all MST instances onSets the maximum-age timer for all MST instances on Primary Catalyst switch should be configured Exits interface configuration mode and returns to global Example Single-FCC Multishelf System ConfigurationDefault selection Configuration mode CAT6k-2config# interface gigabitethernet 0/1 Example Four-FCC Multishelf System ConfigurationSwitches in a four-FCC multishelf system Router# show running-config Switchport Shutdown Verifying the Catalyst Switch Verify the Interface StatusCAT6k-1#show interfaces status Verify that the Links are Not Unidirectional CAT6k-1#show spanning-treeRouter# show interface gi 6/1 inc Gig Integrated Switch System Prerequisites for an Integrated Switch System Restrictions for an Integrated Switch System Information About the Integrated Switch ImplementationIntegrated Switch Overview Integrated Switch Functions Rack Type Description LED Definitions for the Integrated Switch System Implementing the Integrated Switch SystemIntegrated Switch Control Network Topology Implementing the Integrated Switch Through Rommon 6lists the Rommon switch configuration Implementing the Integrated Switch in Cisco IOS XRBooting Up the Integrated Switch Network Reenabling the Ports Verifying the Control Ethernet Connection Verifying the Port Statistics Verifying Bidirectionality Verifying Spanning Tree Protocol Information Bringing Up and Configuring Rack Admin Configure Dsc serial serial ID rack LCC containing the DSC should be configured with Planning information including DSC placementPlaces the router in administration configuration mode Want to configure as Rack When each subsequent rack comes on line, the DSC When each subsequent LCC comes on line, the DSCEnter this command for every FCC in the multishelf Commits the target configuration to the router running You want to configure Configures a plane to operate in an FCC slotEnter this command sequence for each of the eight fabric Fabric plane you are configuring. Valid slot numbers are Group cisco-support F0/SM0/FM Apply power to all FCCs Bringing Up and Verifying FCCs Show controllers fabric rack all detail Show controllers fabric rack all detail Show controllers fabric plane all detail Bringing Up and Verifying the Non-DSC LCC Show controllers fabric connectivity all detail Exit Verifying the Spanning Tree Switched Interface column, one GE port Show platform command must be executedEnter this command for each RP and Scge card Expected Catalyst switch, as defined by the Catalyst Verify the Spanning Tree Detail location 0/rp1/cpu0 Detail location 1/rp0/cpu0Detail location 1/rp1/cpu0 Verifying Fabric Cabling Connections Detail location F0/SC0/cpu0Detail location F0/SC1/cpu0 LED State Color Meaning If the LED is off, it can mean 10 6 11 7 OIM11 OIM0 Where to Go Next OL-10957-02 Secure Domain Routers Chapter contains the following sections Connecting and Communicating with the Router 3shows the DRP Plim connections Remote CLI, CWI XML, or Snmp Card status green=OK Communication Ports on the DRP Plim Establishing a Connection Through the Console Port Summary Steps Standalone Router. If a multishelf system is starting Establishing a Connection Through a Terminal ServerStandalone router is starting up for the first time, see Up for the first time, see , Bringing Up Install and configure the terminal server Press Enter Log in to the router Establishes a Telnet session with the terminal server Replace access-server-address with the IP addressRoot-system username and password when prompted Terminal server, and replace port with the terminal Logging In to a Router or an SDR Telnet ManagementEthernetInterfaceIPaddress CLI Prompt Prompt Syntax Components Description User Access Privileges User Groups, Task Groups, and Task IDs User Group Privileges Command DescriptionPredefined User Groups Personnel Show user tasks Show user allShow aaa usergroup group-name Aaa usergroup root-system User group root-system Inherits from task group Root-system Navigating the Cisco IOS XR Command Modes Identifying the Command Mode in the CLI Prompt Command Mode Navigation Example, Summary of Common Command Modes Command Mode DescriptionExample Not available on most routers Entering Exec Commands from a Configuration Mode Password recovery, and other diagnostic tasks Command Mode Navigation Example Managing Configuration Sessions 6illustrates the two-stage configuration process Displaying the Active Configuration Sessions RP/0/RP0/CPU0router# show configuration sessions Starting a Configuration Session RP/0/RP0/CPU0routerconfig-if#ipv4 address 10.10.10.10 Displaying the Running Configuration Starting an Exclusive Configuration SessionDisplaying Configuration Details with show Commands Following sections describe the following tasks Ntp 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 command Saving the Target Configuration to a File Loading the Target Configuration from a FileLoading an Alternative Configuration at System Startup Clearing All Changes to a Target Configuration Committing Changes to the Running Configuration Commit comment line Show configuration commit list detail commandCommit best-effort Commit confirmed Reloading a Failed Configuration RP/0/0/CPU0routerconfig# load configuration failed commit Exiting a Configuration Submode Returning Directly to Configuration Mode from a SubmodeEnding a Configuration Session Configuring the SDR Hostname Aborting a Configuration SessionPreceding example sets the SDR name to Sdrsj Configuring the Management Ethernet Interface Syntax Components Description Displaying the Available Management Ethernet Interfaces Management Interface Interface Name Example Configuring the Management Ethernet Interface Configure Interface MgmtEthrack/slot/CPU0/portPrerequisites Command parameters are described in Table Enters global configuration modeEnters interface configuration mode and specifies Exits the Management Ethernet interface configuration RP/0/RP0/CPU0routerconfig-if#ipv4 address 10.1.1.1 Ends the configuration session and returns to ExecDisplays the interface details to verify the settings Show interfaces MgmtEth rack/ slot/CPU0/ port Related Topic Document Title Manually Setting the Router ClockClock update-calendar Show clock Commit End For detailed information about setting the system Clock timezone command should be enteredEnter the show clock command Clock, including the configuration of a network time Related Documents Configuring Additional Router Features Complete descriptions of the domain services Configuring Telnet, HTTP, and XML Host ServicesFollowing example, the domain name and DNS are configured Commands Installation and activation of the Manageability Managing Configuration History and RollbackFollowing example, the host services are enabled Descriptions of the Telnet commands RP/0/RP1/CPU0routeradmin# show configuration commit list Displaying the Configuration Changes Recorded in a CommitIDRP/0/RP1/CPU0router# show configuration commit list Displaying the CommitIDs Previewing Rollback Configuration Changes RP/0/RP1/CPU0routeradmin# show configuration commit changesRP/0/RP1/CPU0router# show configuration rollback changes to Rolling Back the Configuration to a Specific Rollback Point RP/0/RP1/CPU0router# rollback configuration toRP/0/RP0/CPU0router# rollback configuration last RP/0/RP1/CPU0router# show configuration commit changes ? RP/0/0/CPU0router# clear configuration commit diskspace RP/0/0/CPU0routerconfig# load rollback changes toRP/0/0/CPU0routerconfig# load rollback changes Deleting CommitIDs Logging Locations and Severity Levels Configuring Logging and Logging CorrelationLogging Destination Command Global Configuration Mode Level Description Logging trap severity Logging console severity Alarm Logging CorrelationConfiguring Basic Message Logging Commit End Show logging When a severity level is specified, only messages at RP/0/RP0/CPU0routerconfig# loggingRP/0/RP0/CPU0routerconfig# logging trap debugging Levels Specifies a syslog server host to use for system logging Commands used to configure logging Following example, basic message logging is configuredConfiguration of system logging Configuration of alarm correlation and generating Creating and Modifying User Accounts and User Groups Configuring User Accounts Creating Users and Assigning Groups Use the secret command to create a secure login Enters username configuration submodeSpecifies a password for the user named in Step Password for the user names specified in Step Default Absolute Configuration Command Configuration LimitingStatic Route Configuration Limits Limit Mode Limit Mode Exec Mode IS-IS Configuration LimitsOSPFv2 and v3 Configuration Limits Maximum-redistributed-prefixes n Show isis adjacency Maximum redistributed-prefixes Show ospf Maximum paths n Show running-config router ospfMaximum interfaces n Show ospf If the maximum paths Maximum Routes Redistributed into Ospf BGP Configuration Limits Default Absolute Maximum Configuration CommandFeature Limit Description Routing Policy Language Line and Policy Limits RP/0/RP1/CPU0router# show rpl maximum Default Absolute Show Current Settings Maximum Command Multicast Configuration LimitsMpls Configuration Limits Limit Configuration Command Exec Mode Other Configuration Limits CLI Tips, Techniques, and Shortcuts CLI Tips and Shortcuts Entering Abbreviated Commands Using the Question Mark ? to Display On-Screen Command Help That apply to the keyword and brief explanations Generally, uppercase letters represent variables arguments Completing a Partial Command with the Tab Key Identifying Command Syntax Errors Displaying System Information with show Commands Using the no Form of a CommandEditing Command Lines that Wrap Common show Commands Command Description Command Mode Browsing Display Output when the --More-- Prompt Appears Halting the Display of Screen Output Narrowing Output from Large Configurations RP/0/RP1/CPU0router# show running-config router staticRedirecting Output to a File Filtering show Command Output Using Wildcards to Display All Instances of an InterfaceRP/0/RP1/CPU0router# show running-config interface pos Displays output lines that contain the regular expression Adding a Filter at the --More-- PromptContains the regular expression File on the specified device Example Using Wildcards to Identify Interfaces in show CommandsWildcards, Templates, and Aliases Wildcard Syntax Description Creating Configuration Templates RP/0/RP1/CPU0router# show interfaces pos* brief Show running-config template template-name End-template RP/0/RP0/CPU0router# show running-config Template tmplt1 Applying Configuration TemplatesApplies the target configuration commands to the running Show running-config template template-name 5defines the alias command syntax Aliases Displaying Previously Entered Commands Command HistoryKeystrokes Used as Command Aliases RP/0/0/CPU0routerconfig# alias my-cookie mgmtEth 0/0/CPU0/0 Command or Key Combination Purpose Recalling Previously Entered CommandsRedisplaying the Command Line Command or Key Combination Recalls Keystrokes to Control Capitalization Key CombinationsKey Combinations to Move the Cursor Keystrokes Function Moves the Cursor Esc, L Esc, U Keystrokes to Delete CLI EntriesTransposing Mistyped Characters Keystrokes Deletes OL-10957-02 Basic Troubleshooting Commands Additional Sources for Information Show context and show exception Show variables bootShow install Show controller Using the ping Command Using the traceroute Command Following example, a successful ping attempt is shownNext example, an unsuccessful ping attempt is shown Following example, the route for an IP address is displayed Using debug CommandsDisplaying a List of Debug Features RP/0/RP0/CPU0router# traceroute Enabling Debugging for a Feature Displaying Debugging Status Configuration Error Messages Disabling Debugging for a Service Show configuration failed command Configuration Failures During a Commit OperationConfiguration Errors at Startup Show configuration failed noerror command Memory Warnings in Configuration Sessions Understanding Low-Memory Warnings in Configuration Sessions ERROR! Memory is in Severe or Critical State Displaying System Memory Information Removing Committed Configurations to Free System Memory Removing Configurations to Resolve Low-Memory WarningsClearing a Target Configuration Heading Description Rolling Back to a Previously Committed Configuration Clearing Configuration Sessions Interfaces Not Coming Up Contacting TAC for Additional AssistanceVerifying the System Interfaces Configure the interfaces, as shown in the following examples RP/0/RP0/CPU0router# show ipv4 interface brief Bring the interface up with the following commands Connection OL-10957-02 Regular Expressions Special Characters Character Pattern RangesCharacter Special Meaning Character Description Complex Regular Expressions Using MultipliersMultiple-Character Patterns Ba?b Underscore Wildcard Pattern AlternationAnchor Characters Parentheses Used for Pattern Recall Bc.\1\2 OL-10957-02 Denoted as primary GL-1 Processes Into memory at startupIs from 0x0 to 0xFFFF 0 to 65535 in decimal Client runs in a web browser Outgoing channel Installation or upgradeHave a registered name in the same style Received Examples of platforms using a GUI. See also CLI Need to provide continuous serviceGL-4 Provides other information relevant to IP packet processing RIPGL-5 Standard and private proprietary branches To boot a node048,576 bits IP routing information Loading software images from a network server, such as Tftp Card installed and running on the routerBattery permanently connected Sent to it by a peer SDH frames Group of software components installed on the routerInterfaces connecting to a Cisco CRS-1 router GL-8 Delay, and delivery guarantee DataGL-9 GL-10 Cisco Technical Assistance Center GL-11 GL-12 GL-13 GL-14 IN-1 Static routes IS-ISMulticast IN-2 DRP Plim illustration PRP-2 illustration RP for 4-slot and 8-slot LCCs, illustration 1-11,4-4IN-3 Low memory warning, removing configurations IN-4 Maximum-paths command Module Number displayed in prompt More promptIN-5 FCC IN-6 IN-7 Status LEDs Show task supported commandShow tech-support command 6-6,7-3 Show user command IN-8 Username command WildcardsIN-9 IN-10