Manuale d’uso / di manutenzione del prodotto 1503 del fabbricante Cisco Systems
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CHAPTER Using Your Hu b Software 3-1 3 Using Y our Hub Softw are This chapter describes procedures for conf ig uring the Ci sco Micro Hu b, and contains the following sections: • Preparing for Confi.
Preparing for Configuration Cisco Micro Hub User Guide 3-2 Connection Using T elnet If the hub is correctly connect ed to a network, you can access the hub by using T elnet from anywhere on that network and can use the configuration program to communicate with th e hub .
Using Your Hu b Software 3-3 Command Conventions Command Con ventions This section describes some things you might need to know before using the commands to configure the hub .
Preparing for Configuration Cisco Micro Hub User Guide 3-4 • Y ou can abbreviate commands to the fe west letters that make them unique. For example, for the show history command, you can enter: Hub&.
Using Your Hu b Software 3-5 Forgot Your Password? The <password> f ield can contain from 0 to 80 uppercase and lo wercase alphanumeric characters. Spaces are not allo wed. The f irst character cannot be a number . P asswords are case sensiti ve.
Configuring the Hub Cisco Micro Hub User Guide 3-6 Step 7 The follo wing message appears, confirmi ng that your new passwords ha ve been accepted: Administrator and telnet passwords are modified. Welcome to Cisco hub model 150x Configuring the Hub This section describes basic hub configuration.
Using Your Hu b Software 3-7 Hub ID Numbers Here are two rules that determine hub ID numbers in a stack of hubs: 1 The lowest hub ID number in a stack (1) is always assigned to the hub with another hub connected to its OUT port and with no hub connected to its IN port.
Configuring the Hub Cisco Micro Hub User Guide 3-8 Configuring the hub takes place in three major steps: 1 Entering Admi nistrator Mode 2 Configuring IP and SNMP Parameters 3 Configuring the SNMP Mana.
Using Your Hu b Software 3-9 Configuring IP and SNMP Parameters Configuring IP and SNMP P arameters The illustration below sho ws the network that is being configured in this section: Figure 3-2 Example Network Note The network addresses used in the steps be lo w are examples only; they will not work for your network.
Configuring the Hub Cisco Micro Hub User Guide 3-10 Step 3 Use the ip trap-manager command to configure the IP address of the SNMP management station: Hub# ip trap-manager 1 172.16.20.2 Basic IP and SNMP configuration is no w complete. T o return to guest mode, enter exit .
Using Your Hub Software 3-11 Command Summary Command Summary This section provides a summary of the commands used to configure the Micro Hub 1503. The configuration commands are orga nized into the fo.
Command Summary Cisco Micro Hub User Guide 3-12 Commands are def ined and described in the format sho wn below: show hub inf ormation Syntax: show hub inf ormation [ hub id ] Mode: Guest Description: Displays information about one or more hubs in a stack.
Using Your Hub Software 3-13 System Help Commands System Help Commands Use the commands in this section to obtai n system help when configuring the hub . help ? Syntax: help Mode: Guest Description: Lists a brief description of the context-sensiti ve help system.
Command Summary Cisco Micro Hub User Guide 3-14 User Interf ace Commands Use the commands in this section to conf i gure the user interface for the hub software.
Using Your Hub Software 3-15 User Interface Comma nds ex i t help Console Access Co mmands Use the commands in this section to cont rol console access to the hub configuration. show console lock out inf o Syntax: exit Mode: Guest Description: Exits any command mode or closes an ac tiv e terminal session.
Command Summary Cisco Micro Hub User Guide 3-16 console-loc kout no console loc kout console-loc kout time Syntax: console-lockout Mode: Administrator Description: Sets t he console acce ss to locked af ter a designated period of no keyboard acti vity .
Using Your Hub Software 3-17 User Interface Comma nds Administrator P assw ord Commands Use the commands in this section to configure hub passwords. pass word no pass word Syntax: password Mode: Administrator Description: Configures the password u sed to enter administrator mode.
Command Summary Cisco Micro Hub User Guide 3-18 telnet-session pass word no telnet-session pass word telnet-session Syntax: telnet-session password Mode: Administrator Description: Configures the hub with the password that is required to start a T elnet session with the hub .
Using Your Hub Software 3-19 User Interface Comma nds Histor y Commands Use these commands in this section to config ure how the hub stores and displays command input history . show history term inal histor y term inal no histor y Syntax: show history Mode: Guest Description: Displays the commands that are stored in the history buf fer .
Command Summary Cisco Micro Hub User Guide 3-20 term inal histor y size Editing Commands Use the commands in this section to c onf igure the hub for terminal editing. Note Command-line editing features are descr ibed in the appendix “T erminal Editing Command Reference.
Using Your Hub Software 3-21 Firmware Load and Restart Commands Fir mware Load and Restar t Commands Use the commands in this section to conf i gure how the hub loads and copies f irmware. Bootup Option Commands Use the commands in this section to configure ho w the hub gets the firmware and IP address when it is first po wered up.
Command Summary Cisco Micro Hub User Guide 3-22 TFTP Download Commands Use the commands in this section to conf i gure how the hub do wnloads firmware from a TFTP server .
Using Your Hub Software 3-23 Firmware Load and Restart Commands star t tftp-download Xmodem Download Command Use this command to download f irmware to the hub with the X modem protocol. star t xmodem-download Syntax: start tftp-download Mode: Administrator Description: Starts the firmware do wnload process.
Command Summary Cisco Micro Hub User Guide 3-24 Restar t Command Use this command to reset the hub. restar t Syntax: restart Mode: Administrator Description: Performs a firmware reset fo r the hub usin g the bootup option selected with the bootup-option command.
Using Your Hub Software 3-25 System Information Commands System Inf or mation Commands Use the commands in this section to display general information about the hub and the stack of hubs.
Command Summary Cisco Micro Hub User Guide 3-26 system name no system name system contact Syntax: system name < string > Mode: Administrator Description: Configures the hub with a descriptive name.
Using Your Hub Software 3-27 System Information Commands no system contact system location no system locatio n Syntax: no system contact Mode: Administrator Description: Resets the hub’ s system c ontact to the default system contact (“system administrator”).
Command Summary Cisco Micro Hub User Guide 3-28 show mana gement information Syntax: show management information Mode: Guest Description: Displays information about the ne twork management hub as follo ws: Hub> show management information Hub id: 1 H/W version : 1.
Using Your Hub Software 3-29 Management Confi guration Command s Management Configuration Commands Use the commands in this section to configur e community strings and trap managers, which are required when using SNMP. IP P arameter Commands Use the commands in this section to configure the Micro Hub 1503 with IP parameters.
Command Summary Cisco Micro Hub User Guide 3-30 ip address no ip address Syntax: ip address { ip-addr ess } [ subnet mask ] [ gateway ip ] Mode: Administrator Description: Configures the IP parameters for the hub . Command Keywor d Definition s • ip-addr ess —IP address of the hub .
Using Your Hub Software 3-31 Management Confi guration Command s SNMP Communities Commands Use the commands in this s ection to configur e the SNMP community st rings. These strings are used by the network mana gement software to access the Micro Hub 1503.
Command Summary Cisco Micro Hub User Guide 3-32 snmp community snmp communi ty disable Syntax: snmp community { index } { string } [ ro | rw ] Mode: Administrator Description: Creates or modifies community strings or associat ed access rights. All ne w entries are enab led by default.
Using Your Hub Software 3-33 Management Confi guration Command s snmp community enab le snmp trap-authentication no snmp trap-authent ication Syntax: snmp community enable { index } Mode: Administrator Description: Enables a community st ring. Command Keywor d Definition index —Inde x of an entry in the community table.
Command Summary Cisco Micro Hub User Guide 3-34 Configuring T rap Man agers Use the commands in this section to configur e the Micro Hub 1503 trap info rmation. Trap information enables the hub to send information to conn ected network de vices. These messages notify network devices about e vents on the network.
Using Your Hub Software 3-35 Management Confi guration Command s ip trap-manager ip trap-manager enab le ip trap-manager disab le Syntax: ip trap-manager { index } { ip -address } [ co mmunity name ] Mode: Administrator Description: Configures trap manager information.
Command Summary Cisco Micro Hub User Guide 3-36 Hub Configuration Command Use the commands in this section to display inform ation about hubs in a stack. show hub inf ormation Syntax: show hub inf ormation [ hub id ] Mode: Guest Description: Displays information about one or more hubs in a stack .
Using Your Hub Software 3-37 Port Configuration Commands P or t Configuration Commands Use the commands in this sectio n to display or edit infor mation about any port in the stack. show port information Syntax: show port information [ hub id ] Mode: Guest Description: Displays information about all the network p orts on the selected hub .
Command Summary Cisco Micro Hub User Guide 3-38 por t operation Syntax: port-operation { hub id } { port id } { enable | disable } Mode: Administrator Description: Enables or disables any port on any hub in the stack. Command Keywor d Definition s • hub id —Number used to identify the hub in a stack.
Using Your Hub Software 3-39 Statistics Commands Statistics Commands Use the commands in this section to display statistics for a stack, a specific hub in a stack, or a specif ic port in a stack since a rest art or since the counter was last cleared.
Command Summary Cisco Micro Hub User Guide 3-40 show hub statistics Syntax: show hub statistics [ hub id ] Mode: Guest Description: Displays statistics for the specif ied hub since the last time the clear -counter or restart command w as entered. Command Keywor d Definition • hub id —(Optional) Number used to identify the hub in a stack.
Using Your Hub Software 3-41 Statistics Commands show port statistics Syntax: show port statistics { hub id } { port id } Mode: Guest Description: Displays statistics for the sp ecified port on the specified hub sinc e the last time the clear -counter s or re start command was entered.
Command Summary Cisco Micro Hub User Guide 3-42 • Frames too long—Number of times that the frame length has exceeded the maximum allow able size (1518 bytes). • Short ev ents—Number of short packet fragments. • Runts—Number of fragments that were too long to qualify as short ev ents.
Using Your Hub Software 3-43 Statistics Commands clear counters Syntax: clear counters { stack | hub [ hub id ]| port [ hub id ] [ port id ]} Mode: Administrator Description: Clears all accrued statistics for the specified stack, hub, or port, or a combination of t hese.
Command Summary Cisco Micro Hub User Guide 3-44 Chassis Inf or mation Commands Use the commands in this section to display chassis information fo r the Cisco Micro Hub. show chassis inf or mation Syntax: show chassis information Mode: Guest Description: Displays general information about the hub’ s hardware and software.
Using Your Hub Software 3-45 Chassis Information Commands show card table Syntax: show card table Mode: Guest Description: Displays information about the ha rdware and firmw are in the hub.
Command Summary Cisco Micro Hub User Guide 3-46 show stac k information stack name Syntax: show stack inf ormation Mode: Guest Description: Displays a description of hubs in a stack. Information is disp layed as follows: Hub> show stack information Stack name: Marketing Index IP address --------------------------- 1 123.
Using Your Hub Software 3-47 Chassis Information Commands stack ip address clear stack tab le Syntax: stack ip address { ip addr ess } Mode: Administrator Description: Configures a Micro Hub 1503 that is a pa rt of a stack with an IP address. Command Keywor d Definition ip addr ess —IP address of the stack.
Command Summary Cisco Micro Hub User Guide 3-48.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Cisco Systems 1503 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Cisco Systems 1503 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Cisco Systems 1503 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Cisco Systems 1503 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Cisco Systems 1503, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Cisco Systems 1503.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Cisco Systems 1503. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Cisco Systems 1503 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
