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Cisco Systems Cisco IOS XR manual Cisco CRS-1 Multishelf System Overview

Models: Cisco IOS XR

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Chapter 1 Introduction to Cisco IOS XR Software

Cisco CRS-1 Multishelf System Overview

Note Many cards operate in both Cisco XR 12000 Series routers and in Cisco 12000 Series routers. For the latest information on which cards are supported by the Cisco IOS XR software in Cisco XR 12000 Series routers and Cisco 12000 Series routers, see Release Notes for Cisco IOS XR Software Release 3.4.

The Cisco IOS XR software also runs on Cisco CRS-1 Multishelf Systems, which are described in the following section.

Cisco CRS-1 Multishelf System Overview

The multishelf system enables multiple Cisco CRS-1 LCCs to act as a single system. This release of the multishelf system supports two 16-slot LCCs and one, two, or four fabric card chassis (FCCs) to provide a total switching capacity of up to 1.28 terabits per second (Tbps). Two external Cisco Catalyst switches provide control-plane connectivity between the chassis.

Figure 1-1shows the single-FCC multishelf system, Figure 1-2shows the two-FCC multishelf system, and Figure 1-3shows the four-FCC multishelf system.

Cisco IOS XR Getting Started Guide

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Cisco Systems Cisco IOS XR manual Cisco CRS-1 Multishelf System Overview

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 ViiiChanges to This Document About This DocumentRevision Date Change Summary Related Documents Intended AudienceOrganization of the Document This document contains the following chaptersCisco.com Obtaining DocumentationConventions ConventionProduct Documentation DVD Ordering Documentation Documentation FeedbackCisco Product Security Overview XiiReporting 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 ConfigurationsCisco 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 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 routerIf the router has no configuration, the router displays Where to Go NextCommand or Action Purpose If the router has been configured, the router displaysPrerequisites Software RequirementsBringing Up and Configuring a Standalone Router Hardware Prerequisites and DocumentationEstablish a connection to the DSC Console port Examples ReturnVerifying the System After Initial Bring-Up ExampleExamples of show Commands Show version CommandShow environment Command RP/0/RP0/CPU0router# show environment temperaturesShow environment options Show platform Command Show redundancy Command Multishelf System Restrictions Hardware RequirementsInformation 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 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 Prerequisites Software RequirementsHardware Requirements Quantity Description Part RestrictionsBefore You Begin Catalyst 6500 Sup720 Compact Flash Mem 256MBInformation 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 configuredExits interface configuration mode and returns to global Example Single-FCC Multishelf System ConfigurationDefault selection Configuration modeCAT6k-2config# interface gigabitethernet 0/1 Example Four-FCC Multishelf System ConfigurationSwitches in a four-FCC multishelf system Router# show running-configSwitchport 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 SystemRestrictions for an Integrated Switch System Information About the Integrated Switch ImplementationIntegrated Switch Overview Integrated Switch Functions Rack Type DescriptionLED Definitions for the Integrated Switch System Implementing the Integrated Switch SystemIntegrated Switch Control Network Topology Implementing the Integrated Switch Through Rommon6lists the Rommon switch configuration Implementing the Integrated Switch in Cisco IOS XRBooting Up the Integrated Switch Network 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 rackLCC containing the DSC should be configured with Planning information including DSC placementPlaces the router in administration configuration mode Want to configure as RackWhen 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 runningYou 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 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 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 CatalystVerify 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 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 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 UpInstall and configure the terminal server Press Enter Log in to the routerEstablishes 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 terminalLogging In to a Router or an SDR Telnet ManagementEthernetInterfaceIPaddressCLI Prompt Prompt Syntax Components DescriptionUser Access Privileges User Groups, Task Groups, and Task IDsUser Group Privileges Command DescriptionPredefined User Groups PersonnelShow user tasks Show user allShow aaa usergroup group-name 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,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 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 10.10.10.10Displaying the Running Configuration Starting an Exclusive Configuration SessionDisplaying Configuration Details with show Commands 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 commandSaving 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 ConfigurationCommit comment line Show configuration commit list detail commandCommit best-effort Commit confirmedReloading a Failed Configuration RP/0/0/CPU0routerconfig# load configuration failed commitExiting 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 DescriptionDisplaying the Available Management Ethernet Interfaces Management Interface Interface Name ExampleConfiguring 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 configurationRP/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/ portRelated Topic Document Title Manually Setting the Router ClockClock update-calendar Show clock Commit EndFor detailed information about setting the system Clock timezone command should be enteredEnter the show clock command Clock, including the configuration of a network timeRelated 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 CommandsInstallation and activation of the Manageability Managing Configuration History and RollbackFollowing example, the host services are enabled Descriptions of the Telnet commandsRP/0/RP1/CPU0routeradmin# show configuration commit list Displaying the Configuration Changes Recorded in a CommitIDRP/0/RP1/CPU0router# show configuration commit list Displaying the CommitIDsPreviewing 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 CommitIDsLogging Locations and Severity Levels Configuring Logging and Logging CorrelationLogging Destination Command Global Configuration Mode Level DescriptionLogging trap severity Logging console severity Alarm Logging CorrelationConfiguring Basic Message Logging Commit End Show loggingWhen 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 loggingCommands used to configure logging Following example, basic message logging is configuredConfiguration of system logging Configuration of alarm correlation and generatingCreating and Modifying User Accounts and User Groups Configuring User Accounts Creating Users and Assigning GroupsUse 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 StepDefault Absolute Configuration Command Configuration LimitingStatic Route Configuration Limits Limit ModeLimit Mode Exec Mode IS-IS Configuration LimitsOSPFv2 and v3 Configuration Limits Maximum-redistributed-prefixes n Show isis adjacencyMaximum redistributed-prefixes Show ospf Maximum paths n Show running-config router ospfMaximum interfaces n Show ospf If the maximum pathsMaximum 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 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 ErrorsDisplaying System Information with show Commands Using the no Form of a CommandEditing Command Lines that Wrap Common show Commands Command Description Command ModeBrowsing Display Output when the --More-- Prompt Appears Halting the Display of Screen OutputNarrowing 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 deviceExample Using Wildcards to Identify Interfaces in show CommandsWildcards, Templates, and Aliases Wildcard Syntax DescriptionCreating Configuration Templates RP/0/RP1/CPU0router# show interfaces pos* briefShow running-config template template-name End-templateRP/0/RP0/CPU0router# show running-config Template tmplt1 Applying Configuration TemplatesApplies the target configuration commands to the running Show running-config template template-name5defines the alias command syntax AliasesDisplaying Previously Entered Commands Command HistoryKeystrokes Used as Command Aliases RP/0/0/CPU0routerconfig# alias my-cookie mgmtEth 0/0/CPU0/0Command or Key Combination Purpose Recalling Previously Entered CommandsRedisplaying the Command Line Command or Key Combination RecallsKeystrokes to Control Capitalization Key CombinationsKey Combinations to Move the Cursor Keystrokes Function Moves the CursorEsc, L Esc, U Keystrokes to Delete CLI EntriesTransposing Mistyped Characters Keystrokes DeletesOL-10957-02 Basic Troubleshooting Commands Additional Sources for InformationShow context and show exception Show variables bootShow install Show controllerUsing 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# tracerouteEnabling Debugging for a Feature Displaying Debugging StatusConfiguration Error Messages Disabling Debugging for a ServiceShow configuration failed command Configuration Failures During a Commit OperationConfiguration Errors at Startup 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 Committed Configurations to Free System Memory Removing Configurations to Resolve Low-Memory WarningsClearing a Target Configuration Heading DescriptionRolling Back to a Previously Committed Configuration Clearing Configuration SessionsInterfaces 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 briefBring the interface up with the following commands ConnectionOL-10957-02 Regular Expressions Special Characters Character Pattern RangesCharacter Special Meaning Character Description Complex Regular Expressions Using MultipliersMultiple-Character Patterns Ba?bUnderscore Wildcard Pattern AlternationAnchor Characters Parentheses Used for Pattern RecallBc.\1\2 OL-10957-02 Denoted as primary GL-1Processes Into memory at startupIs from 0x0 to 0xFFFF 0 to 65535 in decimal Client runs in a web browserOutgoing channel Installation or upgradeHave a registered name in the same style ReceivedExamples 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 informationLoading software images from a network server, such as Tftp Card installed and running on the routerBattery permanently connected Sent to it by a peerSDH frames Group of software components installed on the routerInterfaces connecting to a Cisco CRS-1 router GL-8Delay, and delivery guarantee DataGL-9 GL-10 Cisco Technical Assistance Center GL-11GL-12 GL-13 GL-14 IN-1 Static routes IS-ISMulticast IN-2DRP 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-4Maximum-paths command Module Number displayed in prompt More promptIN-5 FCC IN-6IN-7 Status LEDs Show task supported commandShow tech-support command 6-6,7-3 Show user command IN-8Username command WildcardsIN-9 IN-10