Allied Telesis Comprehensive Guide to Switch Commands with CLI Help

Page 19

Getting Started with the Command Line Interface (CLI)

19

Aliases

The command line interface supports aliases. An alias is a short name for an often-used longer character sequence. When the user presses [Enter] to execute the command line, the command processor first checks the command line for aliases and substitutes the replacement text. The command line is then parsed and processed normally. Alias substitution is not recursive—the command line is scanned only once for aliases.

Aliases are created and destroyed using the commands:

ADD ALIAS=name STRING=substitution

DELETE ALIAS=name

Getting Command Line Help

Online help is available for all switch commands. A multilingual, language- independent online help facility provides help information via the command:

HELP [topic]

If a topic is not specified, a list of available topics is displayed. The HELP command displays information from the system help file stored in FLASH memory. The help file uses a simple mark-up language to identify topics, access level (USER or MANAGER) and help text. Both standard ASCII and Unicode character encodings are supported. Alternate help files can be uploaded and stored in FLASH, then activated using the command:

SET HELP=helpfile

To display the current help file, enter the command:

SHOW SYSTEM

The help file is easily modified, for example to provide detailed site-specific support information. The mark-up language specification and preprocessor program are available from your authorised distributor or reseller.

Also, typing a question mark “?” at the end of a partially completed command displays a list of the parameters that may follow the current command line, with the minimum abbreviations in uppercase letters (see Figure 1). The current command line is then re-displayed, ready for further input.

Figure 1: Using the question mark character (“?”) to display help for the current command.

Manager > ADD ?

Options : ACC APPletalk BGP CLASSifier BOOTp BRIDge DECnet FRamerelay GRE IP IPX ISDN LAPD LOG MIOX NTP OSPF PERM PPP RADius SA SCript SNmp STReam STT TRIGger

TACacs USEr X25C X25T TDM

Manager > ADD ACC ?

Options : CALL SCript DOmainname

Manager > ADD ACC CALL ?

Options : DIrection DScript CScript RScript POrt ENcapsulation AUthentication DOmainname

Software Release 2.6.1 C613-02039-00 REV A

Image 19

Contents AT-8800 Series Switch Page Contents AT-8800 Series Switch User Guide Operating the switchMaintenance and Troubleshooting Page Why Read this User Guide? Introducing the AT-8800 Series SwitchChapter AT-8800 Series Switch Documentation Set Where To Find More InformationOnline Technical Support Features of the AT-8800 Series SwitchIntroduction Software Features Management FeaturesSpecial Feature Licences Do if You Clear Flash Memory Completely on This Chapter Getting Started with the Command Line Interface CLITerminal Communication Parameters Connecting a Terminal or PCParameters for terminal communication Value Assigning an IP Address Enter the password at the password promptGetting Started with the Command Line Interface CLI LoggingTo change the IP address for an interface, enter the command Setting RoutesChoosing a Password Changing a PasswordTo add a static route, enter the command Not available Using the CommandsTo display the current help file, enter the command Getting Command Line HelpAliases Setting System Parameters Enabling Special Feature LicencesGetting Started with the Graphical User Interface GUI Getting Started with the Graphical User Interface GUISupported browsers and operating systems What is the GUI?Accessing the Switch via the GUI Browser and PC SetupHttp Proxy Servers See Option 2 Installing the Switch into the LAN on Establishing a Connection to the SwitchSee Option 3 Connecting to an Installed Switch on See Option 1 Configuring the Switch before Installation onUse this procedure if Option 1 Configuring the Switch before InstallationSee Http Proxy Servers on page 23 for more information Plug the switch into the LAN Option 2 Installing the Switch into the LANDefault username is manager At the login prompt, enter the user name and passwordAssign the vlan1 interface an IP address See Secure Access on page 29 for more informationIf necessary, bypass the Http proxy server Option 3 Connecting to an Installed SwitchFind out the IP address of the switch’s interface Select a PCCreate a Security Officer user account Secure AccessTo enable system security, use the command Then enter the password for CIPHER, sbr4y3To create an RSA key pair, use the command System Status System StatusQuality of Service and traffic filters Using the GUI Navigation and FeaturesConfiguration Menu Using Configuration PagesAn example of a configuration page with a selection table Editable Fields Monitoring Menu Management MenuChanging the Password Diagnostics MenuContext Sensitive GUI Help Combining GUI and CLI Configuration Saving Configuration Entered with the GUIConfiguring Multiple Devices Upgrading the GUI To upgrade the GUIThen delete the GUI resource file, using the command Load the new file onto the switchInstall the new file as the preferred GUI TroubleshootingPoint your web browser at the switch’s IP address Deleting Temporary Files Accessing the Switch via the GUITraffic Flow Time and NTP SolutionSolutions IP Addresses and DhcpLoading Software Page A Security Officer prompt looks like Using Scripts onUser Accounts and Privileges Snmp and MIBs onLogin To display the current operating mode, enter the command Normal Mode and Security ModeOperating the switch Specific Parameters Storing Files in Flash Memory Remote ManagementExample output from the Show File command Using ScriptsStoring Multiple Scripts Saving the Switch’s ConfigurationFile Naming Conventions Loading and Uploading FilesFile extensions and file types Extension File type/function SPA Loading FilesDownload the patch file Setting Loader DefaultsExample Load a Patch File Using Http To load a patch file Configure the LoaderTo upload a log file Uploading Files From the SwitchExample Upload a Configuration File Using Tftp More informationUpgrading Switch Software To upgrade to a new software release Example Upgrade to a New Software Release UsingLoad the new release file onto the switch Test the release Enter the licence password for the software releaseMake the release the default permanent release Enter licence information for the releaseTo upgrade to a new patch file Example Upgrade to a new patch fileCheck that the file is successfully loaded Snmp and MIBs Using the Built-in EditorFor More About Operations and Facilities Where interface is the name of an interface, such as vlan11AT-8800 Series Switch User Guide Enabling and Disabling Switch Ports Switch PortsTo display information about switch ports, use the command To enable or disable a switch port, use the commandsSTP Autonegotiation of Port Speed and Duplex Mode Speed 10/100 Port TrunkingShow VLAN=ALL Packet Storm Protection Layer 2 SwitchingPort Mirroring Port security Virtual Local Area Networks VLANs Example output from the Show Switch Port Intrusion commandTpid Vlan TaggingFormat of user priority and Vlan data in an Ethernet frame Vlan Membership using Vlan Tags Vlan Membership of Untagged Packets Vlan membership of example of a network using tagged portsMember ports Vlans with untagged ports Creating VLANsTo destroy a VLAN, use the command To add tagged ports to a VLAN, use the commandProtected VLANs Summary of Vlan tagging rulesVlan Interaction with STPs and Trunk Groups Generic Vlan Registration Protocol Gvrp Layer 2 Switching ProcessIngress Rules Learning Process Forwarding Process Layer 2 Filtering Example output from the Show Switch Filter command Egress Rules Quality of ServiceSpanning Tree Modes Spanning Tree Protocol STPSpanning tree port states State Meaning Spanning Tree and Rapid Spanning Tree Port StatesRapid Spanning Tree port states State Meaning Configuring STP SET STP=stpnameALL PRIORITY=0..65535 Example output from the Show STP command Do not occur Parameter Meaning Switch Max AgeTo display STP port information, use the command Example output from the Show STP Port command 94AT-8800 Series Switch User GuideTo show STP counters, use the command Discarded 96AT-8800 Series Switch User GuideReceive TransmitIgmp Snooping Interfaces to Layer 3 ProtocolsDisable Igmpsnooping Group List Example output from the Show IP Igmp commandParameters TriggersEvent DescriptionLayer IP Multicasting Then use either of the following commandsDisplays the interfaces enabled for IP routing Figure Internet Protocol IPNovell IPX Routing Information Protocol RIPLayer 103 AppleTalk Example output from the Show IPX Circuit commandLayer 105 Resource Reservation Protocol RsvpPage Maintenance and Troubleshooting Switch startup messages How the Switch Starts UpSet system territory How to Avoid ProblemsWatch for software updates If you accidentally do this, you will need to What to Do if You Clear Flash Memory CompletelyWhat to Do if the PPP Link Disconnects Regularly What to Do if Passwords are LostGetting the Most Out of Technical Support Maintenance and Troubleshooting 113 Resetting Switch DefaultsChecking Connections Using Ping To get debugging output, enter the commandTelnet Fails Troubleshooting IP ConfigurationsTo set Ping defaults, enter the command Stop a Ping that is in progress, enter the commandMaintenance and Troubleshooting 115 Troubleshooting Dhcp IP AddressesYour switch is acting as a Dhcp client Your switch is acting as a Dhcp serverNo Routes are Visible to the Remote Router Troubleshooting IPX ConfigurationsTo check that the PPP link is active, enter the command Local Workstations Can Not Access Remote ServersCheck route tables Using Trace Route for IP TrafficTo halt a trace route that is in progress, enter the command