HP J3188A manual MAnagers SHow, Parameter Default Value Definition

Page 39

 

 

Managing the Hub

 

 

Console Command Reference

 

 

 

Parameter

Default Value

Definition

BOOTP protocol

YES

Keep or set this value to YES if you are using a BOOTP server to provide

enabled

 

the IP configuration to the hub. By default, the hub is configured to

 

 

automatically seek an IP address from a BOOTP server on the network.

 

 

This is done when the hub is powered on. If an IP address is not found,

 

 

the HP Hub-16M will seek an IP address every ten minutes until it finds

 

 

an IP address. Set this value to NO to disable this BOOTP process.

 

 

If you are not using BOOTP to provide the hub’s IP configuration, you

 

 

should set this parameter to NO.

 

 

 

Telnet access

YES

Determine whether users are allowed to use Telnet to access the hub’s

enabled

 

console interface.

 

 

 

IP address

0.0.0.0

The IP address of the hub (written in the format X.X.X.X).

 

 

Each X is a decimal number between 0 and 255 separated by a decimal

 

 

point. This address will be used unless the BOOTP protocol is enabled.

 

 

The default value (0.0.0.0) disables IP communications on the hub when

 

 

BOOTP is also disabled.

 

 

 

Subnet mask

Must be supplied and

The bit mask defining which portion of the IP address is the subnet

 

depends on the class of IP

address, written in the format X.X.X.X. All the devices on your network

 

address that has been

should use the same subnet mask. See your network administrator for

 

entered.

the correct value.

 

 

 

Default router

0.0.0.0

The IP address of the nearest IP router in your network. If no IP routers

 

 

are in your network, enter the device’s own IP address.

 

 

 

Time to live

64

The number of IP routers a packet is allowed to cross before the packet

 

 

is discarded. Increase this value if the hub will be sending IP packets to

 

 

a destination that is more than 64 routers away. The maximum is 255.

 

 

 

MAnagers [SHow]

To configure the list of network management stations that are autho- rized to access and manage this hub, and to specify which of those stations should receive alarms. Use the SHow option to display the current list of authorized management stations without being prompted to edit the list.

The list consists of the IP or IPX address of the network management station and an indication of whether each management station should receive alarms (indications of specific network events that are configured for the hub from

Managing the Hub

3-9

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Contents HP J3188A Page HP 10Base-T Hub-16M J3188A Installation and Reference GuidePublication Number Iii HP 10Base-T Hub-16M J3188AFront of the Hub Back of the HubNetwork Connections FeaturesContents Cables and Connectors Vii Security InformationPage Installing the Hub Verify the hub operates correctly Installing and Configuring Your HubVerify included parts Connect the external transceiverTime Cord connected directly to the hub for proper operationPattern LEDRack or Cabinet Mounting Mount the hubTable Mounting Connect the hub to your network Connecting Devices to the Hub Connecting Hubs TogetherTwisted-Pair Cascade Connections ThinLAN Connections InstallingOhm terminator Interpreting LED Status Connecting the Hub-16M to a Fiber-Optic BackboneInterpreting Hub Status LEDs Following table provides LED port information Interpreting Port Status LEDsPage Troubleshooting Approaches TroubleshootingUsing a Checklist to Diagnose the Hub Troubleshooting Using a Checklist to Diagnose the HubProblem Solution LED Operation Hub will automatically recover after Troubleshooting LED OperationDiagnostic Tips Power CollHub Maintenance Tasks Testing the Hub OnlyClearing a Password for the Ascii Console Troubleshooting Hub Maintenance Tasks Running Connectivity TestsObtaining Firmware Enhancements Managing the Hub Setting up the Ascii ConsoleDirectly, Using a Serial Cable and a Terminal Remotely, Using TelnetManaging the Hub Starting the Console Remotely, Using a Modem and a TerminalSyntax Conventions on Help Screen Console Command ReferenceCommands are described in the rest of the chapter Example HE ST This displays help for the Status commandDefault Description BAckupRange CDpstatusCOunters Counter Name Definition Valid RangeIPconfig When to Use IPconfigDIsconnect Following table explains the IP parameters Configuring for Network ManagementUsing Novell NetWare IPX Using IPMAnagers SHow Parameter Default Value DefinitionCommand Manager Address IP or IPX Receive Alarms?To end your editing Table entry with ID 1 would now be a blank line Displays the other devices that are using CDP protocolMEssageinterval NEighborCommunity name PAsswordClear a password PIngREset POrt port ON/OFFRObustness SEcure portSHowCLear Security Configuration Parameter DefinitionsManaging the Hub Configuring Security on a Single Port Configuring Security on All Twisted-Pair PortsEavesdrop Prevention, must be set to on Address Selection Authorized Clearing Security Violation Indicators Showing the Security ConfigurationSTatus SPeed new speedStatus Information What It Means To send Network links, see the , TroubleshootingTEstlink 16M will respond with the correct packetPage Cables and Connectors Recommended CablesFollowing table shows PC connections to the RS-232 port Cables and Connectors Following table shows network connections to the hubCable Function Cable Type HP Product Number Twisted-Pair Cable for Hub-to-Computer Network Connection Twisted-Pair Cable/Connector Pin-OutsPins 1 and 2 must be a twisted pair Pins 3 and 6 must be a twisted pairMinimum pin-out will function correctly RS-232 Connector and Cable Pin-OutsInstaller for assistance with your cabling requirements Cable pin-out described belowSignal Minimum Cable Pinout for Ascii Console ConnectionRS-232 Modem Cable Twisted-Pair Cable Pin Assignments Twisted-Pair Straight-Through CableHub End MDI-X Environmental SpecificationsPhysical ElectricalConnectors SpecificationsElectromagnetic Modem Configuration US Robotics Courier V.FC/V.34Megahertz XJ2288 Pcmcia card modem Practical Peripherals PM288MT II Intel 14.4EXSupra FAX Communication Between the Hub Network Management Station Network AddressingGlobally Assigned IP Network Addresses IPX Addressing for Novell NetWareIP Addresses for IP and Non-IP Networks IPX Addressing NotesDevice IP Configuration CountryCompany Name/Address Bootp Process Using BootpDefinitions of the table entry fields Bootp Table File EntriesPage How Backup Links Work Backup LinksBackup Links LimitationsAdditional Notes Hub to a Server Examples of Backup LinksHow the Backup Function Works Hub to a SwitchHub can monitor only one link T e G g e s t i o nConfiguration/Installation Sequence Configuring a Backup LinkIndications of Backup Link Activation Identifying the Backup LinkReactivating the Primary Link Page Understanding Network Security Security InformationSecurity Information How Intruder Prevention WorksHow Eavesdrop Prevention Works Authorized MAC addressAssigning the Authorized MAC address Setting Inbound Security with Intruder Prevention Send Alarm Auto Port DisableSetting Outbound Security with Eavesdrop Prevention Security Information Page Mounting Precautions Safety and Regulatory StatementsEquipment and should be easily accessible Power PrecautionsTemperature might exceed 45C 113F Settings to configureGrounding Safety InformationTible de causer des dommages à léquipement Informations concernant la sécuritéHinweise zur Sicherheit Considerazioni sulla sicurezza Consideraciones sobre seguridad Safety Information Japanese Canada Regulatory StatementsFCC Class a Statement for U.S.A. Only European CommunityDeclaration of Conformity Index IndexDiagnosing with the LEDs … 2-2 diagnostic tests Late collision … 3-13 mounting the hub … LED description … Verifying hub operation … Page J3188-90001