Nortel Networks 2500 Series manual

Conﬁguring LLDP using the CLI 225

Figure 78

show lldp local-sys-data command output

Figure 79 "show lldp mgmt-sys-data command output" (page 225) displays the output from the show lldp mgmt-sys-data command.

Figure 79

show lldp mgmt-sys-data command output

Figure 80 "show lldp stats command output" (page 226) displays the output from the show lldp stats command.

Nortel Ethernet Routing Switch 2500 Series

Overview — System Conﬁguration

NN47215-500 (323162-B) 02.02 Standard

4.1 19 November 2007

Copyright © 2007, Nortel Networks

Image 225

Nortel Networks 2500 Series manual Show lldp local-sys-data command output, Show lldp mgmt-sys-data command output

Contents

Overview System Conﬁguration Trademarks Restricted rights legendStatement of conditions General Nortel Networks software license agreementPage Contents System conﬁguration software features Getting Started with Device Manager 101 Using the Web-based management interface 145 System conﬁguration using the CLI 177 Copyright 2007, Nortel Networks Ethernet port management using the CLI 233 Conﬁguring ports using Device Manager 303 Troubleshooting 337 Contents Conﬁguring daylight savings time using the device manager FeaturesNew in this release Other changes New in this release Before you begin IntroductionText conventions This guide uses the following text conventions Bold body text Introduction Protocols menu Related publications Getting help over the phone from a Nortel Solutions Center How to get helpGetting help from the Nortel web site Getting help through a Nortel distributor or reseller How to get help Introduction Front panel Ethernet Routing Switch 2500 Series hardware Ethernet Routing Switch 2526T front panel Ethernet Routing Switch 2550T-PWR Console port SFP Gbic Support on the Ethernet Routing Switch 2500 Series Port connectorsGigabit Interface Converter LED display panel Auto-MDI/MDI-X PWR Back panel Kensington lockLabel Type Color State Meaning Cooling fans AC power receptacle Country/Plug Specifications Typical plug Description Read immediatelyBitte sofort lesen Lisez ceci immédiatement Leggere attentamenteSírvase leer inmediatamente Avertissement Network conﬁguration examples Small ofﬁce desktop switch application Ethernet Routing Switch 2500 Series used as a desktop switch Branch ofﬁce workgroup switch application Conﬁguring power workgroups and a wiring closet switch Medium sized ofﬁce wiring closet switch application Conﬁguring power workgroups and a wiring closet switch Ethernet Routing Switch 2500 Series hardware Stacking capabilities Nortel Ethernet Routing Switch 2500 Series stacking Stack enabled switches Stacking functionality deliveryStandalone conﬁguration with license ﬁles Syntax for the copy tftp license command is Working with license ﬁles using the CLI Show license all command output Copying the license ﬁle using the Java Device Manager Step Action Following table describes the ﬁelds on the License Download License DownloadLicense Download page ﬁelds Fields Description Stack conﬁguration To set up a stack, do the following Rear-ports mode command Conﬁguring the operational mode on rear ports using the CLIShow rear-ports mode command Rear-ports mode command Show rear-ports mode command Show rear-ports mode command output Unit Select switchRear ports and stacking Rear panel components Connecting stack cables Cascade Down portCascade Up port Stack MAC address Initial stack installationStack conﬁgurations Base Unit Cascade Cable Cascade Cable used for return Cascade down stack conﬁguration Temporary base unit Regardless of stack conﬁguration, the following appliesCascade up stack conﬁguration Redundant cascade stacking Removing a stack unit Adding/Replacing a stack unitRedundant cascade stacking Auto Unit Replacement AUR function CFG mirror process in stack CFG mirror image process CFG mirror images in the stack after adding unit CFG mirror images after removing unit CFG mirror images in the stack after removing the BU unit Restoring a CFG image Step Action Show stack auto-unit-replacement command Conﬁguring AUR using the CLISyntax for this command is Synchronizing the CFG mirror images with CFG images Stack auto-unit-replacement enable command No stack auto-unit-replacement enable commandDefault stack auto-unit-replacement enable command Displaying unit stack uptime Conﬁguring AUR using Device Manager Nortel Ethernet Routing Switch 2500 Series stacking System conﬁguration software features Switch management featuresConﬁguration and switch management Switch banner Console port settingsUser name and password Login banner Logging Login screen Using Sntp Autosave feature Setting local time zone Using DNS to ping and TelnetConﬁguring with CLI Choosing a BootP request mode BootP automatic IP conﬁguration/MAC address BootP Always BootP or Default IPBootP or Last Address BootP or Default IP BootP Always BootP or Last Address BootP or Last Address BootP DisabledDefault BootP setting Flash memory storage Switch software image storage Conﬁguration File Download/Upload RequirementsBinary conﬁguration ﬁle Autotopology Link Layer Discovery Protocol Ieee 802.1ab Ascii conﬁguration ﬁle Lldp operational modes Connectivity and management informationHow Lldp works System conﬁguration software features Conﬁguring Lldp using the CLI Ethernet port management featuresAutosensing and autonegotiation Custom Autonegotiation Advertisements High speed ﬂow control Symmetric mode Asymmetric mode Other featuresRate Limiting Conﬁguration RFCs Standards CLI Basics CLI command modes CLI command mode hierarchy Command mode prompts and entrance/exit commands Interface FastEthern Port numbering Port numbering in Standalone Mode Accessing CLI Ethernet Routing Switch 2500 Series bannerPress Ctrl+Y, and the CLI prompt appears Setting the system username and password Getting helpBasic navigation General navigation commands End command Exit command Reload command Shutdown commandKeystroke navigation Help command Default command No commandLogout command Help command output Conﬁgure command Enable commandInterface command Conﬁgure command parameters and variables End command Disable commandExit command Syntax for the end command is Exit command has no parameters or variables Reload command Shutdown command Shutdown command parameters and variables Show sys-info command Show tech command Show sys-info commandManaging basic system information Parameters Description Variables Show tech command Show sys-info command outputShow tech command output Managing MAC address forwarding database table Show mac-address-table command Mac-address-table aging-time command Default mac-address-table aging-time commandShow mac-address-table command output CLI Basics Installing Device Manager Installing Device Manager Device Manager basicsGetting Started with Device Manager Installing the Device Manager software JDM installation precautionsInstalling JDM on Windows Installing JDM on Windows Installing JDM on Unix or Linux Removing previous versions of JDM on Windows Windows minimum requirements Installing JDM on Windows from the CD Installing JDM on Windows from the webTo access the JDM software from the installation CD InstallAnywhere Introduction dialog box Executing the JDM installation software on Windows Choose Install Set dialog box Click NextLicense Agreement dialog box Feature Sets dialog box Choose Install Folder dialog box Click Next Choose Shortcut Folder dialog box appearsChoose Shortcut Folder dialog box Pre-Installation Summary dialog box Install Complete dialog box Installing JDM on Unix or Linux Installing JDM on Solaris from the CD Installing JDM on Linux from the CDMinimum requirements Installing JDM on Unix or Linux from the web Executing the JDM installation software on Unix or Linux Do one of the following Click Next Choose Install Set dialog box appears Feature Sets dialog box Pre-Installation Summary dialog box appears Installing Java Device Manager dialog box Removing JDM in Unix or Linux environments Starting Device Manager Device Manager basics Device Manager window Setting the Device Manager properties Type information and select check boxes Click OK Default Properties dialog boxFollowing table describes the Properties dialog box ﬁelds Properties dialog box ﬁelds Area Polling Area Field DescriptionWeb Management Application Control Opening a device To display the device view, use the following procedureApplication Launch Telnet From JDM Following table describes the Open Device dialog box ﬁelds Press Ctrl+O Open Device dialog box appears Field Description SNMPv3 Click Open Device Manager window Device viewParts of the Device Manager window Menu bar commands page 127 describes the Menu Bar commands Use the menu bar to set up and operate the Device ManagerMenu bar Toolbar Device view Selecting objectsToolbar buttons Button Name Description Menu bar equivalent Selecting multiple objects Selecting a single objectViewing information about a Gbic port To select a single object Interface tab LEDs and ports Shortcut menus Switch unit shortcut menuPort color codes Color Description Color port legend Switch unit shortcut menu command Command Description Port shortcut menu commands Command DescriptionPort shortcut menu Editing objects Using the buttons in Device Manager dialog boxesStatus bar Device Manager buttons Button Name Description Working with statistics and graphs Types of statisticsTypes of statistics Statistic Description Types of graphs Statistic DescriptionLine graph Area graph Bar graph Statistics for single and multiple objects Pie graphInterface statistics for a single port Viewing statistics as graphs Types of statistics Viewing statistics as graphsInterface statistics for multiple ports Statistics dialog box for a port Telnet session Opening an SSH connection to the deviceGraph dialog box buttons Button Name Description Opening the web-based management home Web-based management home Trap log Online Help Help ﬁle locations Platform Default path Getting Started with Device Manager Requirements Using the Web-based management interface Web-based management interface home Logging in to the web-based management interface Menu MenuMain headings and options Main menu titles Option Adac Main menu titles Option Menu icons Button or icon Description Management Console Viewing stack information To view stack informationIcons Name Description Stack Information screen ﬁelds Section Fields Description Stack Information Switch Information page ﬁelds Description Switch InformationViewing summary information Section Fields Description Changing stack numbering To view or renumber devices within the stack frameworkStack Numbering Stack Numbering screen ﬁelds Field Range Description Identifying unit numbers Identifying Unit Numbers 157 Conﬁguring PoE switch parameters using the CLI Diagnosing and correcting PoE problemsPoe poe-pd-detect-type command Status codes on PoE ports Legacy Poe poe-power-usage-threshold command Poe poe-trap command Conﬁguring PoE port parameters using the CLINo poe-trap command No poe-shutdown command No poe-shutdown command Poe poe-shutdown commandNo poe-shutdown command parameters and variables Poe poe-shutdown command parameters and variables Poe poe-priority commandSyntax for the poe poe-prioritycommand is Poe poe-priority command parameters and variables Poe poe-limit command Poe poe-limit command parameters and variablesSets the port priority as Show poe-main-status command Displaying PoE conﬁguration using the CLI Show poe-port-status command parameters and variables Show poe-port-status command Show poe-port-status command output Show poe-power-measurement commandEnter the ports for which you want to display Status Displaying and conﬁguring power management for the switch Conﬁguring PoE using web-based managementPower measurements Show poe-power-measurement command output Displaying and conﬁguring power management for the ports Displaying and conﬁguring power management for the switchGlobal Power Management Global Power Management page items Description End Port Property page appears Port Property Displaying and conﬁguring power management for the portsFollowing table describes the items on the Port Property Port Property Description PoE tab for a single unit PoE tab items for a single unit Description Edit Unit dialog box-PoE tab for a single unit ERS 2550T-PWR with PoE ports Device Manager display for PoE ports PoE tab for ports Color DescriptionEdit Port dialog box- PoE tab PoE tab items PoE tab items page 176 describes the PoE tab itemsPoE tab items Description IP notation System conﬁguration using the CLI Ip address command Ip address command parameters and variablesAssigning and clearing IP addresses No ip address command Default ip address commandDefault ip netmask command No ip netmask command Ip default-gateway command No ip default-gateway commandIp default-gateway command parameters and variables Show ip command Default ip default-gateway command Show ip address command parameters and variables Show ip address commandShow ip command output Show ip address command output Ping command Ping command is executed in the User Exec command modePinging Using DNS to ping and telnet Resetting the switch to default conﬁgurationShow ip dns command Ping command Ip name-server command Ping command responses Show ip dns command output Show ip dns command There is no default value for this command Ip name-server command Ip domain-name command No ip name-server commandIp name-server command parameters and variables No ip name-server command parameters and variables Default ip domain-name command No ip domain-name commandConﬁgure network command Conﬁguration Management Show conﬁg-network command Conﬁgure network commandConfigure network command is executed in the User Exec mode Conﬁgure network command parameters and variables Show conﬁg-network command Show running-conﬁg command Copy running-conﬁg tftp command Show running-conﬁg commandShow conﬁg-network command output Ascii Conﬁguration Generator Show running-conﬁg command output Copy running-conﬁg tftp command Show terminal command Setting the terminalTerminal command Show terminal command Terminal command Terminal command is executed in the User Exec mode Show cli commandTerminal command parameters and variables Show cli command is executed in the User Exec command mode Syntax for the show sys-infocommand is Show cli command outputDisplaying system information Boot command Setting boot parametersIp bootp server command Ip bootp server command parameters and variables No ip bootp server command Default ip bootp server commandSetting Tftp parameters Tftp-server command Show tftp-server commandCopy conﬁg tftp command Copy tftp conﬁg command Tftp-server command parameters and variables Default tftp-server command No tftp-server commandCopy conﬁg tftp command Copy conﬁg tftp command parameters and variables Copy tftp conﬁg command Copy tftp conﬁg command parameters and variablesCustomizing the opening banner Show banner command Banner command for displaying bannerShow banner command parameters and variables Describes the parameters for the banner command Show interfaces command No banner commandShow interfaces command Show interfaces conﬁg command Displaying the ARP table Show interfaces command parameters and variables Show interfaces names command outputShow interfaces command output Show interfaces verbose command output Show interfaces conﬁg command Write memory command Copy conﬁg nvram commandShow interfaces conﬁg command output Saving the conﬁguration to Nvram Save conﬁg command Show autosave commandEnabling and disabling autosave No autosave enable command Autosave enable commandDefault autosave enable command Show autosave command has no parameters or variables Show sntp command No sntp enable command Sntp enable commandSntp server primary address command Show sntp command output No sntp server command Sntp server secondary address commandDefault is No sntp server command parameters and variables Sntp sync-interval command Sntp sync-now commandSyntax for the sntp sync-nowcommand is Sntp sync-interval command parameters and variables Default sntp command Setting local time zoneDefault sntp command parameters and variables Clock time-zone No clock time-zone Clock summer-time Clock time-zone Clock time-zone command parameters and variablesNo clock time-zone Clock summer-time Clock summer-time command parameters and variables No clock summer-timeShow clock time-zone Enabling Autopology Autotopology command No autotopology commandShow clock summer-time Show clock time-zone output No autotopology command Autotopology commandDefault autotopology command Show autotopology settings Show autotopology settings command output Conﬁguring Lldp using the CLIShow autotopology nmm-table command output Show autotopology nmm-table 32768 Lldp command Lldp conﬁg-notiﬁcation command Default lldp commandDefault lldp command parameters and variables Lldp conﬁg-notiﬁcation command parameters and variables No lldp conﬁg-notiﬁcation command Default lldp conﬁg-notiﬁcation commandSpecifies the ports affected by the command No lldp tx-tlv command Lldp tx-tlv commandLldp tx-tlv command parameters and variables No lldp tx-tlv command parameters and variables Default lldp tx-tlv command Lldp status commandDefault lldp tx-tlv command parameters and variables Default lldp status command No lldp status commandLldp status command parameters and variables No lldp status command parameters and variables Default lldp status command parameters and variables Show lldp commandShow lldp command is executed in the User Exec command mode Show lldp command parameters and variables Show lldp mgmt-sys-data command output Show lldp local-sys-data command output Show lldp port command Show lldp port command parameters and variablesShow lldp stats command output Show lldp port neighbor-mgmt-addr command output Show lldp port neighbor command output Show lldp port tx-stats command output Show lldp port rx-stats command output Show lldp port tx-tlv command output Conﬁguring LEDs to blink on the display panelUpgrading software Download command Download commandSyntax for the download command is Download command parameters and variables Download message System conﬁguration using the CLI Shutdown command for the port Ethernet port management usingShutdown command for the port No shutdown command Shutdown port command parameters and variables No shutdown command No shutdown command parameters and variablesShutdown port command output Name command Name command No name command Default name commandNaming ports Default name command No name commandNo name command parameters and variables Default name command parameters and variables Speed command Setting port speed Default speed command parameters and variables Default speed command Default duplex command Duplex command Default duplex command parameters and variables ﬂowcontrol commandﬂowcontrol command parameters and variables Enabling ﬂow control No ﬂowcontrol command parameters and variables No ﬂowcontrol command Default ﬂowcontrol command Default ﬂowconrtol command parameters and variablesEnabling rate-limiting Rate-limit command Show rate-limit commandRate-limit command parameters and variables Show rate-limit command output No rate-limit command Default rate-limit commandEnabling Custom Autonegotiation Advertisements Cana Show auto-negotiation-capabilities command Show auto-negotiation-advertisements commandShow auto-negotiation-advertisements command output Enter ports for which you want the current Auto-negotiation-advertisements command Default auto-negotiation-advertisements command No auto-negotiation-advertisements command Enter ports for which you want to set default Viewing Unit information Conﬁguring the switch using Device Manager Unit tab To open the Rate Limit tab, use the following procedureRate Limit tab To open the Unit tab Following table describes the Rate Limit tab ﬁelds Rate Limit tabRate Limit tab ﬁelds Field Description Following table describes the Rear Port Mode tab items Rear Ports Mode tabRearPortOperMode To open the Globals tab, use the following procedure Viewing switch IP informationGlobals tab Following table describes the Globals tab ﬁelds Following table describes the Address tab ﬁelds Addresses tabGlobals tab ﬁelds Field and MIB Description Association Edit IP dialog box IP Address tab Following table describes the ARP tab ﬁelds ARP tabEdit IP dialog box ARP tab ARP tab ﬁelds Field Description Following table describes the TCP tab ﬁelds TCP tabTCP tab TCP tab ﬁelds Field Description TCP Connections tab UDP Listeners tabTCP Connections tab ﬁelds Field Description UDP Listeners tab ﬁelds Field Description Editing the chassis conﬁguration Edit Chassis dialog box System tab System tab System tab ﬁelds Field Description Following table describes the System tab ﬁelds Base Unit Info tab Base Unit Info tab ﬁelds Field Description Following table describes the Base Unit Info tab ﬁelds Stack Info tab Value is 4th flr wiring closet in blg aEdit Chassis screen-Stack Info tab Stack Info tab ﬁelds Field Description 264 Conﬁguring the switch using Device Manager Agent tab Following table describes the Agent tab ﬁelds Edit Chassis dialog box Agent tabAgent tab ﬁelds Field Description Following table describes the PowerSupply tab ﬁelds PowerSupply tabEdit Chassis dialog box PowerSupply tab Power Supply tab ﬁelds Field Description Fan tab Following table describes the Fan tab ﬁeldsEdit Chassis dialog box Fan tab Edit Chassis dialog box Banner tab Banner tab To disable the banner To set the default banner, use the following procedureTo check that the banner is disabled Telnet window with default banner To create a Custom Banner, use the following procedure Custom Banner tabEdit Chassis dialog box Custom Banner tab FileSystem dialog box Working with conﬁguration ﬁlesFileSystem Conﬁg/Image/Diag ﬁle dialog box ﬁelds FileSystem Conﬁg/Image/Diag File tab dialog box Ascii conﬁg ﬁle Save Conﬁguration tab File system Ascii Conﬁg File dialog boxAscii Conﬁg File tab ﬁelds Field Description Following table describes the Save Conﬁguration tab ﬁelds Save Conﬁg tabSave Conﬁguration tab ﬁelds Field Description Working with Sntp Conﬁguring SntpSNTPClock dialog box SNTPClock dialog box ﬁelds Field Description Following table describes the Sntp dialog box ﬁelds Conﬁguring daylight savings time using the device manager Conﬁguring local time zone using the device manager To view topology information, use the following procedure Displaying topology information using Device ManagerTopology tab Topology tab Topology Table tab Diagnostics dialog box Topology tab Topology Table tabTopology tab ﬁelds Field Description Diagnostics dialog box Topology Table tab Conﬁguring Lldp using Device ManagerFollowing table describes the Topology Table tab ﬁelds Lldp Globals tab Lldp Globals tab Lldp dialog box appears with the Globals tab displayedLldp Globals tab Lldp Globals tab ﬁelds Field Description 284 Conﬁguring the switch using Device Manager Port tab Click the Port tab. The Port tab appears Following table describes the Port tab ﬁeldsPort tab ﬁelds Field Description TX Stats tab Following table describes the TX Stats tab ﬁelds Graphing Lldp transmit statisticsTX Stats tab TX Stats tab ﬁelds Field Description RX Stats tab Following table describes the RX Stats tab ﬁeldsRX Stats tab ﬁelds Field Description 290 Conﬁguring the switch using Device Manager Graphing Lldp receive statistics Local System tabLocal System tab appears Following table describes the Local System tab ﬁelds Local Port tabLocal System tab Local System tab ﬁelds Field Description Local Port tab ﬁelds Field Description Following table describes the Local Port tab ﬁelds Following table describes the Local Management tab ﬁelds Local Management tabLocal Management tab Local Management tab ﬁelds Field Description Neighbor tab Neighbor tab ﬁelds Field Description Following table describes the Neighbor tab ﬁelds Neighbor Mgmt Address tab Neighbor Mgmt Address tab ﬁelds Field Description Neighbor Mgmt Address tab Following table describes the Unknown TLV tab ﬁelds Unknown TLV tabUnknown TLV tab Unknown TLV tab ﬁelds Field Description Organizational Deﬁned Info tab Organizational Deﬁned Info tabOrganizational Deﬁned Info tab ﬁelds Field Description Field Description 302 Conﬁguring the switch using Device Manager Viewing and editing a single port conﬁguration Conﬁguring ports using Device Manager Interface tab for a single port Interface tab ﬁelds Interface tab ﬁeldsPort dialog box Interface tab Interface tab ﬁelds for a single port Field Description To view or edit the conﬁgurations of multiple ports Viewing and editing multiple port conﬁgurations Interface tab for multiple ports Interface tab for multiple ports Interface tab ﬁelds for multiple ports Field Description 310 Conﬁguring ports using Device Manager Administering the switch using web-based management Administrative options available to you areViewing system information Quick Start System InformationSystem Information page items Description Quick Start Items on the Quick Start Section Description Conﬁguring system security From the main menu, choose Administration Reset Rebooting the Ethernet Routing Switch 2500 SeriesReset warning message displays Reset page message Logging out of the management interface Reset to Default page message Logout message Administering the switch using web-based management Conﬁguring the switch using web-based management Conﬁguring BootP, IP, and gateway settingsSwitch conﬁguration options available to you are IP page items Section Range Description Following table describes the items on the IP Section Range Description Conﬁguring BootP, IP, and gateway settings Modifying system settings System page items Range Description To conﬁgure system settings, use the following procedure Conﬁguring switch port status Type information in the text boxes Click SubmitRange Description Port Management Following table describes the items on the Port Management Click Submit Port row of your choice, select from the lists Conﬁguring high speed ﬂow control High Speed Flow ControlHigh Speed Flow Control page items Range Description Downloading switch images To download a switch image, use the following procedureSoftware Download Software Download page ﬁelds Fields Range Description Following table describes the ﬁelds on the Software Download 100 Mb/s port status LEDs ports 18 to Downloading Ascii conﬁguration ﬁles Ascii Conﬁguration ﬁle download page items Description Ascii Conﬁguration ﬁle download Type information in the text boxes, or select from a list Conﬁguration File Setting items Range Description Parameters not saved to the conﬁguration ﬁle Conﬁguring port communication speed From the main menu, choose Conﬁguration Console/Comm PortConsole/Communication Port page items Conﬁguring Rate Limiting Conﬁguring Rate LimitingSelect from the list Following table describes the items on the Rate Limiting Rate LimitingRate Limiting page items Section Description Diagnosing and correcting problems TroubleshootingInterpreting the LEDs Diagnosing and correcting problems Normal power-up sequence Port connection problems Normal power-up sequence Port connection problems Corrective actions Symptom Probable causeAutonegotiation modes Port interface DB-9 Console port connector Appendix a DB-9 RS-232-D Console/Comm Port connector Ring indicator not used Pin number Signal Factory default settings Field Default setting Appendix B Default settings Field Default setting Pvid Packet Type Both Snooping Disabled Field Default setting Field Default setting Field Default setting Appendix B Default settings Appendix C Sample BootP conﬁguration ﬁle Appendix C Sample BootP conﬁguration ﬁle CLI command list Command Appendix D Command List Security Configuration and Management Nortel Ethernet Routing Switch Default tftp-server command Configuration IP Multicast NN47215-503 Ip default-gateway command No autosave enable command No banner command No logging remote level No snmp-server No tftp-server command Save config command Show banner command Show poe-port-status command Show running-config command Show terminal command Show tftp-server command Snmp-server host host-ip port Spanning-tree mstp max-hop 100 Terminal command Vlan create Appendix D Command List Parameter Operating specification Storage specification AC power speciﬁcationsAppendix E Technical speciﬁcations Environmental speciﬁcations Physical dimensions Performance speciﬁcationsNetwork protocol and standards compatibility Electromagnetic emissions Safety agency certiﬁcation Electromagnetic immunity Index Index Eeprom 132 Gbic Viewing 129 No banner command No autotopology command Index Index Sntp 68, 68, 208 181 Software version requirements Unix Index Index Page Overview System Conﬁguration