Cisco Systems 12006, 12406 manual Cisco IOS User Interface, User Interface Command Modes

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Chapter 3 Installing the Router

Cisco IOS User Interface

Global Configuration Mode

The router can be configured manually using the global configuration mode through the Cisco IOS command line interface (CLI). This method requires you to enter configuration commands on a line-by-line basis at the system console, without being prompted by the setup command configuration script.

Cisco IOS User Interface

The Cisco IOS software provides a command line interface by which you can configure and manage your router. If you are unfamiliar with the Cisco IOS command line interface, refer to the “Using the Command Line Interface” chapter in the Cisco Configuration Fundamentals Configuration Guide, which discusses different command modes, context-sensitive help, and editing features.

User Interface Command Modes

The Cisco IOS user interface is organized into many different modes. The commands that are available depend on which mode you are currently in. Entering a question mark (?) at the system prompt displays a list of commands available for the current command mode.

When you start a session on the router, you begin in user mode, often called EXEC mode. Only a limited subset of commands are available in EXEC mode. To have access to all commands, enter privileged EXEC mode, which requires that you enter a password. From privileged EXEC mode, you can enter any EXEC command or enter global configuration mode. Most of the EXEC commands are one-time commands, such as show commands, which show the current configuration status, and clear commands, which clear counters or interfaces. The EXEC commands are not saved across reboots of the router.

The configuration modes allow you to make changes to the running configuration. If you later save the configuration, these commands are stored and can be used when you reboot your router. Starting at global configuration mode, you can enter interface configuration mode, subinterface configuration mode, and other protocol-specific modes.

	Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
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Contents Installing the Router Installing a Router Tools and Equipment Required Installing the Rack-Mount Brackets OptionalInstalling the Optional Rack-Mount Brackets Installing the Optional Rack-Mount Brackets Installing Center-Mount Brackets Optional Lower and Upper Center-Mount BracketsInstalling the Optional Center-Mount Brackets Repeat through for both upper center-mount bracketsInstalling the Chassis in a Rack Power supplyOL-11497-03 Installing the Chassis on a Tabletop or Flat Surface Supplemental Bonding and Grounding ConnectionsSupplemental Bonding and Grounding Port for Nebs Compliance Connecting RP and Line Card Cables Crimping the LugChassis Cable-Management Bracket Connecting Alarm Card Cables Connecting to the Console and Auxiliary Ports GRP Console and Auxiliary PortsGRP Console DCE and Auxiliary DTE Port Connections Pin Signal Input/Output Description GRP Console Port SignalsGRP Auxiliary Port Signals RTS PRP Console and Auxiliary Ports PRP Console and Auxiliary Port ConnectionsPRP Console Port Signals Console Port Pin Signal Input/Output DescriptionAuxiliary Port Pin Signal Installing a Flash Memory CardPRP Auxiliary Port Signals 10 Flash Memory Card Slot Opening Connecting the GRP to an Ethernet Network 11 RJ-45 and MII Ethernet ConnectionsPin1 Out Input/Output Description Code MDCPin Out Input/Output Description Code PinConnecting the PRP to an Ethernet Network Pin Signal14 Using the Ethernet Port on the PRP Ethernet Port Pin Signal Description PRP Ethernet ConnectionsCrossover Cable Pinout for Connecting Two PRPs Parameter Connecting to an AC Power SourceParameter RJ-45 Router Power Combination 18 AC Power Distribution Unit Connecting to a DC Power Source DC PDU Power a Power On the Router Alarm IOS Software Configuration for the Router Cisco IOS Software ImagesConditions to Check Before System Startup Overview of the Boot Process Starting the Router and Observing Initial ConditionsOL-11497-03 RP Alphanumeric LED Display Meaning SourceRP Interfaces Using the RP LEDs GRP Interfaces Using the GRP LEDs PRP Interfaces Using the PRP LEDs ETH System Configuration Dialogue External Network InterfaceLocating a Valid Cisco IOS Software Image Manually Booting the SystemDir bootflash Dir slot0Booting from the Cisco IOS Software Image Command DescriptionBefore You Begin Router ConfigurationSetup Command Cisco IOS User Interface User Interface Command ModesGlobal Configuration Mode User Exec Mode Privileged Exec ModeROM Monitor Mode Interface Configuration ModeSubinterface Configuration Mode Configuration Changes Setup Command Interactive Script Example SDCC1/0 Configuring interface POS1/0 Is this interface in use?yes Host Name Configuring Global ParametersPasswords Configuring Network Interfaces ProtocolsGRP Ethernet Interfaces PRP Ethernet InterfacesLine Card Interfaces Router# show version Show version CommandChecking the Software Version Router# show running-config Verifying the Running Configuration SettingsShow running Config Command Example No service tcp-small-servers Hostname Router Show startup-config Command Saving the Running Configuration Settings to NvramReviewing the Running Configuration Settings Router# copy running-config startup-configNo logging trap Using Flash Memory Cards in the RP Installing the Flash Memory Card in a RPRemoving the Flash Memory Card from an RP Formatting a Flash Memory CardRouter# format slot0 Specify a Boot ImageRouter# configure terminal Flash Memory Console Commands Router# cd slot1Router# cd bootflash Router# delete slot0infoRouter# squeeze slot0 Routerconfig# config-reg Ctrl-Z Booting from Flash MemoryRouterconfig# boot system flash devicefilename Copying FilesRouter# copy tftpfilename bootflashslot0slot1 filename Router# copy tftpmyfile1 slot0myfile1Copying a Cisco IOS Software Image Router# copy tftpnew.image slot0new.imageCopying Cisco IOS Software Updates Router# copy slot1image.new slot0image.new Copying Files Between RP Memory and a Flash Memory Card Router# show bootvar Copy startup-config slot0 slot1filenameRouter# copy startup-config slot0myfile2 Router# dir slot0Copy running-config slot0slot1filename Router# copy running-config slot0myfile2Router# copy startup-config running-config Copy slot0slot1filename startup-configRouter# copy slot0myfile startup-config If You Need More Information Locked Blocks in Flash Memory CardsInstalling the Router If You Need More Information OL-11497-03