Notifying Users | HP UX 11i v2 Networking Software guide

To change your user identity:

1.Enter the user-execute or privileged-execute mode.

2.Enter the login command with the name of a system user.

HP-IB# login admin

3.Enter the user password.

After you enter the password, you are logged in as the specified user in the user-execute mode.

Password: xxxxx

HP-IB>

Notifying Users

User notification commands send text messages to the terminal screens of all CLI users or to individual users. These are convenient utilities for notifying everyone of an impending reboot or to notify single users about special issues that apply only to them.

Broadcasting Messages to Users

Message broadcasting is an important feature to forewarn all CLI users that some major event is about to take place, such as bringing down a network for administration. A broadcast message is sent to every active CLI session on the system chassis.

Enclose multi-word messages within double-quotes. Single-word messages do not require double-quotes. Only the unrestricted user may broadcast messages.

HP-IB# broadcast “message”

Syntax

The message identifies the sender, followed by the message text.

For example, if you send this:

HP-IB# broadcast "Switch going down in 10 minutes."

everyone, including the user who sent the message, receives this:

HP-IB#

Broadcast message from super

Switch going down in 10 minutes.

Sending Messages to Individual Users

The write command is used to send a message to a single user. Check that the user is logged in before attempting to write to their terminal. Use theshow user user_name command to verify the user is logged in.

HP-IB> show user anonymous

======================================================================

User Information

======================================================================

username : anonymous access-level : readwrite admin-status : enabled

status : active num-logins : 1

num-unsuccessful-logins : 6

last-login : Thu Oct 10 09:13:10 2002 last-unsuccessful-login : Thu Oct 10 09:12:32 2002

HP-IB> write waldo "Connection to FC array 15 is now working." HP-IB>

Switch Administration and Management 99

Image 99

HP UX 11i v2 Networking Software Notifying Users, Broadcasting Messages to Users, Sending Messages to Individual Users

Contents

HP Fabric Clustering System HP-UX Administrators Guide Copyright 2004-2008 Hewlett-Packard Development Company, L.P Table of Contents Interfaces Configuration Switch Administration and Management 109 131 129 156 152154 155 217 223227 Page List of Figures HyperTerminal LoginPage Show ib Keyword Descriptions Default User Names, Passwords and PrivilegesDescription of Access Levels List of Tables IP Commands Show logging Command Syntax DescriptionShow trace Command Syntax Descriptions Show user Command Syntax Descriptions Publishing History About This DocumentIntended Audience New and Changed Documentation in This Edition Typographical Conventions What’s in This Document Related Documents Related Documents HP Encourages Your CommentsPage Introduction to Technology Understanding the Fabric Clustering SystemUnderstanding InfiniBand About the HP Fabric Clustering System Software Suite About the HP Fabric Clustering System Software Suite User-Space Rdma LibraryKernel Rdma Subsystem Interaction with HyperFabric DriverPage HP offers the following new Host Channel Adapters HCA Hardware OverviewHardware Components Host Channel Adapters Hardware Overview AB286C Host Channel Adapter Connector View AB286C Host Channel Adapter Side View AB286A Host Channel Adapter Connector View AB286A Host Channel Adapter Side View Figureigure Hardware Components Other Product Elements Switch Hardware Overview Preliminary Considerations Installation PlanningPreliminary Considerations Applications Installation Planning Site Set-upApplication Availability Installing HP Fabric Clustering System HP Fabric Clustering System Installation PrerequisitesEnter your product name Click the double arrow Install HP Fabric Clustering System Adapters Installing the AH304A Host Channel AdapterInstalling HP Fabric Clustering System Installing the 410533-B21 Host Channel Adapter Installing the AD313A Host Channel AdapterSecure the card and reassemble the system Inserting the AD313A Host Channel Adapter Installing the AB286C Host Channel Adapter Inserting the AB286C Host Channel Adapter On-Line Addition and Replacement Operations OL Install HP Fabric Clustering System Software Where devicename is the name assigned to the CD-ROM driveThis opens the Software Selection window IB subsystem IB Rdma IPoIB IB device driver ibt Install HP Fabric Clustering System SwitchesT-25 Torx screwdrivers Second person for the installation Rack Mount Preparation Fixed and Sliding Rails Installing the Switch Attach Rail to Switch Remove Support Bracket if installed Remove Shipping SleeveSecurely attach all rails to the rack Attach Cable Guides & Cables Cable Routing and Bend LimitsAttach Cable Guides & Cables Attach Cables Cable Installation Minimum Bend Radius Attach to other HP Fabric devices Switch SetupConnect Cables to Switch Switch or Adapter Enable the management port Setting up the SwitchEnter configure to enter the global-configuration mode Set the default gateway address. This address is an example Syntax and Example nwmgr -S ipoib Internet Protocol over InfiniBand IPoIBPage Configuration Supported FeaturesConfiguration Parameters Configurations up to 24 End Nodes Non-Supported FeaturesSupported Configurations Sample Configurations using the AB286A/C or AD313A HCA Sample Configurations using the AB286A/C or AD313A HCA Configurations with More Than 24 End Nodes 128 Node 50% non-Blocking Configuration Following is a listing of the major topics in this chapter Administration and Management HP-UX Host Administration and Management Using ItutilAdministration and Management Following syntax must be used with itutil command options Summary of Itutil Command OptionsItutil Administrative Commands Itutil Command Options Itutil Management Commands Syntax itutil Syntax Example itutil Output Example Syntax Example itutil -i ib0 Output Example Syntax Example itutil -s-i ib0 Output Example Syntax Example itutil -t IB Output Example Administration and Management Displaying Connectivity Information Using Itutil Syntax Example itutil -r Output ExampleSyntax Example itutil -c Output Example Example itutil -T Viewing the Itutil Manpage Using NetTL Syntax nettl -llog class -esubsystem IPoIB Tracing IPoIB Administration and ManagementIfconfig Command IB Tracing Level information for a given ipoibppa Lanadmin CommandsDisable the IPoIB Interface To disable the IPoIB interface Displaying IPoIB Interface Link-Level Information Syntax Example lanadmin -a Output Example Syntax Example lanadmin -s Output ExampleSyntax Example lanadmin -g Output Example Syntax lanadmin -x-hipoibppa Syntax Example lanadmin -x -h Serviceguard and IPoIB Lanscan CommandIntroduction Using Serviceguard and IPoverIB Configuring IPoIB Interfaces for Serviceguard Clusters Switch Administration and Management Switch Administration and Management Privilege Level Using the CLICLI Overview Starting a CLI Session Entering CLI Modes Administrator Roles Exiting CLI Modes Using Command Completion Quick Help Command Abbreviation Command-Line Editing Key Stroke Shortcuts Command before returning to user-execute modeExiting the CLI Session Specifying the Card/Port Lists Card/Port pairsRanges Indicates ports 2 through 4 on card Enter the global-configuration mode Advanced Switch SetupConfiguring the System Hostname Testing Network Connectivity Logging On Through the CLI Setting User Levels and PasswordsManaging the Switch Logging Onto the System Managing Through the CLI Management Methods Configuration, Image, and Log File Overview Configuration, Image, and Log Files Set-Up the Hardware Connection Understanding the Upgrade ProcessImage Upgrade Procedure Summary Upgrading Image Files Check the Image Version Enter the privileged-execute mode Copy/Download the Image Install a New Image Optional View the images by using the dir image command Show the new system -image Specify a New Boot Image Reboot the System Troubleshooting an Image UpgradeDeleting System Images and Image Files Viewing Log Files Listing Configuration, Image, and Log FilesViewing Configuration Files File Management Specifying the Configuration to Use at System Reboot Saving Configuration FilesSaving for System Reboot Saving the Backup Configuration Show the new system image Arguments to the copy command are described belowSaving and Copying Files Example Tslog. The .cfg extension is optional Deleting Configuration, Image, and Log FilesDownloading Files to the System Colon Display the log files that are in memory Deleting Configuration FilesDetermine the configuration files in memory Deleting Log Files Determine the currently installed system-images Verify that you had successfully removed the log fileDeleting Image Files Uploading Log Files HP Fabric Switch devices use the following log formatManaging Log Files Understanding the Log Format Switching User Identity Administering the System Notifying Users Broadcasting Messages to UsersSending Messages to Individual Users Creating User Accounts Understanding Usernames and PasswordsDefault User Names, Passwords and Privileges Setting or Changing a Password Adding New Users Displaying User Information Deleting a User Account User Account Configuration Commands User Account Administrative CommandsCommunity Strings Using DNS Services Setting Administrative RolesFollowing table displays the different access-levels Setting the System Clock Save your configuration Setting the NTP Servers to Maintain the System ClockRebooting the System Setting Time Through the CLI Reboot the System Through the CLI 108 Monitoring and Troubleshooting Diagnosing ProblemsDiagnosing Problems LED Color, Behavior, and Meaning HP Fabric Switch Cluster Connection LEDsHP Fabric Switch System Status IB Port Status LED Indicators Rear System Status LED Indicator Front System Status LED Indicator Power supply/ Fan Status LED Indicator Power Supply Troubleshooting Bottom Top Green- over Green Off Flickering Ethernet Port Status LED IndicatorsEthernet Management Port LEDs HP Fabric HCA Connection LEDs HCA Connection LED Colors and Meanings Logical Solid Indicates aBeen Top Established None HCA is not Determining if the Switch is Faulty Determining Whether the HCA or Cable is Faulty Monitoring and Troubleshooting the HP-UX Host HP-UX Host Troubleshooting ProcedureNext Steps Syntax example itutil Output example Monitoring and Troubleshooting the HP-UX Host Monitoring and Troubleshooting Syntax example itutil -c fe802c9018a08a11 ib0 Description Port failure Sample nettl Log Messages Following are examples of nettl log output Monitoring and Troubleshooting IPoIBNettl Sample Log Output Sample IB Logs PDU in Trace Sample IPoIB Logs Linkloop Command Known ProblemsNetTL CLI can also be used to monitor the system Monitoring and Troubleshooting the SwitchHealth Monitoring IP Filter Product About Logging and Tracing About HP Fabric EventsAbout Tracing Troubleshooting the HP Fabric Network PingFlow Verify Link Speed Setting Trace LevelsEnabling Tracing Disabling Tracing Replacing Individual Components Replacing a Power Supply Module HCA Environmental Specifications AB286C SpecificationsPhysical and Environmental Specifications HCA Physical Specifications AB286C 130 Using the Documentation Switch Command Line Interface Examples Show CommandsDefaults Related Commands Defaults There are no defaults for this command Show arp ethernetShow arp IB Examples To display the InfiniBand ARP table Show authenticationExamples To display the authentication method Show backplane Show boot-config Defaults This command has no defaultsTable B-3 show boot-config Command Field Descriptions This command has the following arguments Show cardShow card Syntax Description Card Defaults show card defaults to show card allImage data for internal configuration Oper status Synopsis Table B-6 Show card-inventory Command Syntax DescriptionsTable B-7 show card-inventory Command Field Descriptions Show card-inventory Show config Related Commands clockShow clock Syntax show fan Related Commands copyTable B-8 show fan Command Field Descriptions Show fan Table B-9 show ib Keyword Descriptions Show ib sm configurationShow host Show ib InfiniBand read-only user Table B-10 Show ib Command Syntax DescriptionsTable B-11 Show ib Command Field Descriptions User-execute and privileged-execute modes Table B-12 show ib sm multicast Command Syntax Descriptions Show ib sm multicastShow ib sm neighbor Table B-13 show ib sm neighbor Command Field Descriptions Arguments associated with this command are described belowShow ib sm node subnet-prefix An unknown type Node guid Use with the all keywordClass-version Type Show ib sm partition Table B-16 Show ib sm port Command Syntax Descriptions Table B-17 show ib sm port Command Field DescriptionsShow ib sm port 12x Value may beNo state change 1x or Packets transmitted by this port. There is no default value Received by this port. There is no default valueTransmitted by this port. There is no default value Packets received by this port. There is no default value Errors and the buffers are not immediately reclaimed Local-phy-error Table B-18 Show ib sm service Command Syntax Descriptions Show ib sm service Show ib sm switch Table B-19 show ib sm switch Command Syntax DescriptionsTable B-20 show ib sm switch Command Field Descriptions Lid-per-port Partition enforcement is not supported by the switchLife-time-value Port-state-change Show ib-agent channel-adapter Slot System chassis slot in which the device resides Type Table B-22 Show ib-agent summary Command Field DescriptionsShow ib-agent summary Usage Guidelines form Lid Decimal-base LID of this port Show ib-agent switchFollowing example displays a summary of all the SMA nodes Agent Show ib-agent switch linear-frd-info Display the attributes of a single switchSwguid Type, GUIDs, and capabilities Show ib-agent switch all mcast-info lidShow ib-agent switch all node-info Swguid Guid of a specific InfiniBand switch Defaults This command has no defaults Show ib-agent switch all pkey-info Show ib-agent switch port-infoUsage Guidelines None Examples SL0 to VL mapping Show ib-agent switch sl-vl-mapNode-guid Bit Guid of this node In-ib-port Out-ib-port Show ib-agent switch switch-info Table B-31 Show interface ib Output Descriptions Table B-30 Show interface ib Command Syntax DescriptionsShow interface ib Syntax is described in the table below Link-trap Usage Guidelines None Show interface ib sm Show interface ib sm statistics Show interface mgmt-ib Show interface mgmt-ethernet Show ip Show interface mgmt-serial Table B-33 show ip Command Syntax Descriptions Show locationShow logging End Table B-34 show logging Command Syntax DescriptionShow ntp Syntax show ntp Usage Guidelines Examples Show power-supplyRelated Commands ntp Show running-status Show sensor Show snmp Show system-services Table B-36 show trace Command Syntax Descriptions Show terminalShow trace Shows all users in the user database Table B-37 Show user Command Syntax DescriptionsShow user Username Specify the name of a specific user Show version IP Commands Table B-38 IP CommandsArp ib Enter the IP address of the target host Default ip ip-over-ib-mtuClear ib arp-cache Table B-39 Auto-negotiate Syntax Description Ip ip-over-ib-mtu Defaults The default ip-over-ib-mtu isDefaults The default domain name is an empty string Ip domain-name Ip name-server-one Defaults The default ip-over-ib-mtu unit isTable B-42 Command Syntax Description Defaults The default is an empty string Ip route Table B-43 Command Syntax DescriptionTable B-44 Command Syntax Description Ip name-server-two Arp ib InfiniBand CommandsTable B-45 InfiniBand Commands Ib sm subnet-prefix Table B-46 ib sm subnet-prefix Syntax Description Sweep-interval is 10 seconds Table B-47 Acceptable PKey ValuesFollowing example removes a specified subnet manager Following example creates a Partition, and adds Syntax is described in the following table Ib-agent switchResponse-timeout is 2,000 microseconds Ib-agent channel-adapter Link-trap Config-if-ib submodeTable B-50 interface ib Command Syntax Description Interface ib Name Commands syntax is described in the table belowDefaults The default is no link-trap Defaults The default interface name is card#/port# Table B-54 Administrative Commands Administrative CommandsCommands stoats is described in the table below Table B-53 Shutdown Command Syntax Description Reboots the chassis. See reload Ftp-server enable Use to enable or disable ftp-servicesLogging Configures active log Configures a radius-server. See radius-server Table B-55 action Keywords Boot-configTable B-56 boot-config Keywords Action Table B-57 boot-config Arguments Table B-58 Broadcast Command ArgumentsBroadcast Clock ConfigureTable B-59 clock Command Argument Descriptions Card Copy Syntax Table B-60 copy Command Syntax DescriptionsTable B-61 Copy Command Argument Descriptions System upon boot-up Syntax delete fsfile Arguments related to the delete command are described belowTable B-62 Delete Command Argument Descriptions Delete Dir Related Commands cardTable B-63 Dir Command Argument Descriptions To display installed system-images and image files Syntax enable DisableEnable Syntax disable Ftp-server enable ExecExit Privileged-execute modes Gateway History Defaults The default gateway IP address isRelated Commands None Help Hostname InstallSynopsis The hostname command assigns a name to the system Table B-69 hostname Command Argument Description Table B-70 install Command Argument Descriptions Table B-71 interface Command KeywordsInterface Example Interface mgmt-ethernet No ipip mask Related Commands ipInterface mgmt-ib Syntax ipip mask Table B-72 Location Syntax Descriptions Location Logout LoginSynopsis The logout command ends the current CLI session Logging Ntp Related Commands exitRelated Commands dir More Table B-73 Radius-server Syntax Descriptions PingRadius-server Syntax ping dest Enabling/Disabling the Ethernet Management Port Synopsis The reload command reboots the chassisReload Syntax reload No snmp-server Snmp-server Defaults Telnet access is enabled by default Table B-74 Snmp-server Command Keyword DescriptionsTable B-75 snmp-server Command Argument Descriptions Command Modes Privilege Level Usage Guidelines Terminal time-out Defaults The default is 24 lines per screenDefaults The default time-out interval is 15 minutes Terminal length Type Syntax type type Table B-76 type Command Argument Username Table B-77 Default User Accounts WhoSyntax who Defaults This command has no defaultsWrite 216 Loading HyperTerminal How to Use Windows HyperTerminalAttaching through Windows HyperTerminal HyperTerminal Prerequisite How to Use Windows HyperTerminal Configuring the HyperTerminal Connection Figure C-3 Connect To Dialog Box Figure C-4 COM Port Properties Dialog Box Verifying the HyperTerminal Connection Figure C-5 HyperTerminal Login 222 223 Glossary Glossary Ietf 225 Snmp 226 Ib-rw, 104 setting levels, 104 unrestricted-rw Index227 Index CLI 229 See also HCAs hostname 231 Index See also ports Snmp Changing, 104 user access levels changing About, 104 adding, 101 creating, 100 user information235 Index