HP J3178A User Manual

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Installation and Reference Guide

HP J3178A

HP AdvanceStack Switch 208/224 Management Module

Installation and Reference Guide

This document contains information which is protected by copyright. Reproduction, adaptation, or translation without prior permission is prohibited, except as allowed under the copyright laws.

Publication N umber

5966-5228 Edition 1 March 19 9 7

Applicable Product

HP J3178A Switch 208/22 4 Management Module

Disclaimer

The information contained in this document is subject to change with out notice .

HEWLETT-PACKARD COMPANY MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER CHANT ABILITY AND FITNESS FOR A PARTICULAR PURPOSE. HewlettPackard shall not be liable for errors contained herein or for incidenta l o r co ns equent ial da mages in conn ect io n wit h th e furnishing, performance, or use of this material.

Hewlett-Packard assumes no responsibility for the use or reliability of its software on equipment that is not furnished by Hewlett-P a ck a r d.

Warrant y

A copy of the specific warr anty terms applicable t o your Hewlett- Packard products and replacement parts can be obtained from your H P Sales and Service Office or authorized dealer.

Hewlett-Packard Company 8000 Foothills Boulevard, m/s 5551 Roseville, California 95747-5551 http://www.hp.com/go/network_city

HP Customer Support Services

How to get the latest software/agent firmware

You can download from the World Wide Web, HP FTP Library Service, CompuServe, and HP BBS a compressed file (j3178xx.exe) containing the latest version of the HP Switch 208/224 Management Module software and proprietary MIB. After you download the file, extract the file by typing For example, j317801 [Enter].

World Wide Web

http://www.hp.com/go/network_city

Select the “Support” section. From this web site, you can also download information on the HP networking prod-

ucts. If you have a growing network, download the Designing HP AdvanceStack Workgroup Networks Guide or call 1-80 0-752-0900 in the U.S. to receive a copy through the mail.

HP FTP Library Service

1. FTP to Internet IP Address — ftp ftp.hp.com.

2. Log in as anonymous and press [Return] at the passw or d pro m pt.

3. Enter bin to set the transfer type.

4. Enter cd /pub/networking/soft ware.

5. Enter get

filename

to transfer the file to your computer, then quit.

filename

and pressing [Enter].

CompuServe

1. Login to CompuServe.

2. Go to the “hp” service.

3. Select “HP Systems, Disks, Tapes, etc.”

4. Select “Networking Products” library.

5. Download

HP BBS

Set your modem to no par ity, eight bits, 1 st op bit, se t speed up to 14400 bps, and with your telecommuni cation pr ogram (e. g. , Windows T ermina l) dial (208) 344 -1691 in the U.S. to get the latest software for your HP networking product. For other countries, see http://www.hp.com/cposupport/eschome.html.

(over for more services)

filename

and then quit.

✂

Obtain the latest console code (j3178xx.exe) from:

HP FTP Library: ftp ftp-boi.external.hp.com World Wide Web: http://www.hp.c om /go/network_city HP BBS: (208) 344-1691

(over)

HP FIRST Fax Retrieval Service

HP FIRST is an automated fax retrieva l servi ce that is avail able 24 hours a day, seven days a week. HP FIRST provides information on the following topics:

■ Product information

■ Troubleshooting instructions

■ Technical reviews and ar ticles

■ Configuration information

To access HP FIRST, dial one of the following phone numbers:

Location Phone Number

U.S. and Canada Only Dial 1 (80 0) 33 3-1 917 with your fax m achi ne o r to uch -tone phon e

Outside the U.S. and Canada Dial 1 (208) 344-4809 from your fax machine and press 9. To re c eiv e a li st of c urr e nt ly a va il ab le do cu me nt s, e nt er do cu me nt n u mbe r 1 994 1. The i nf orm at i o n

you requested will be sent to you by return fax. For other countries, see http://www.hp.com/ cposupport/eschome.html.

and press 1.

Additional HP Support Services

In addition to the above services, you can purchase various HP telephone support services which provide you expert HP technical assistance:

■ Network Phone-In Support provides you support at an hourly rate. In the U.S.,

call 1-800-790-5544. In other countries, please contact your local HP Response Center to see if this service is available in your country.

■ HP SupportPack Comprehensive Network Support provides complete prob-

lem resolution for medium to large interconnected local and wide area networks. Contact your HP Authorized Reseller or the nearest HP Sales and Support Office for more information.

HP offers other hardware support services. Please contact your reseller for more information.

CompuServe: Go hpsys

Network Phone-In Support (hourly):

Lib 7. Download j3178xx.exe

1-800-790-5544

✂

1 Installin g th e Management Modu le

Included P a rts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Installa tion Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Removing the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

2 Management Module Description

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Module Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

3 The Switch Console

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Connecting a Console to the S witch . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Modem Cable Pin-Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 5

Starting and Ending a Console S ession . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Main Menu Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 8

Screen Structur e and Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Using Password Secu ri ty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Rebooting the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Advanced Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

4 Configuring the Switch From the Console

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4- 1

Configurable Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4- 3

System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Port Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

IPX Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4- 6

Internet (IP) Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Using Bootp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4- 9

SNMP Communities

Trap Receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

Serial Link Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

Console Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16

Spanning Tree Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17

Network Monitoring Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19

Saving Confi gurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

5 Monitorin g Switch Operation Fro m the Console

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Status and Counters Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Switch Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Port Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Port Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

Port Counters - Show Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5- 6

Address Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

Port Address Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Spanning Tree (STP) Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

6 Using SNMP To Monitor and Manage the Switch

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

SNMP Management F eatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6- 2

SNMP Co nfi guration P rocess . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Advanced Management: RMON and EASE Support . . . . . . . . . . . . . . 6-4

RMON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

EASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

7 Troubleshooting

Checking the Module LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Problem/Solution Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

IP Config uration Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

Diagnostic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

Testing the Switch and Management Module

Testing the Switch’s Ports and the Links . . . . . . . . . . . . . . . . . . . . . . . . 7-5

Resetting the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7

Clearing Passwords on the Switch Console . . . . . . . . . . . . . . . . . . . . . 7-8

HP Customer Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9

. . . . . . . . . . . . . . . . . . . . 7-4

A Specificati o ns

Regulatory Statem en ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

B Modem Configuration

C File Transfers

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

Downloading an Operating System . . . . . . . . . . . . . . . . . . . . . . . . . . . . C- 1

Using TFTP To Downloa d the OS File . . . . . . . . . . . . . . . . . . . . . . . . . C-2

Using the SNMP-Based HP Download Manager . . . . . . . . . . . . . . . . . C-4

Using the Switch -t o -S witch Download . . . . . . . . . . . . . . . . . . . . . . . . . C-4

Using the Zmodem to Download the OS File . . . . . . . . . . . . . . . . . . . C-5

Troubleshooting TFTP Downloads . . . . . . . . . . . . . . . . . . . . . . . . . . . . C- 6

Transferring Switch Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8

D Spanning T r ee O per a t ion

Spanning Tree Protoc ol (STP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1

vii

viii

Installing the Management Module

Installing the Mana gement Module

The HP J3178A Adva nceStack Switch 208/22 4 Management Module is inst alled into the front of the HP AdvanceStack Switch 208T or 224T.

In this manual, this module will be called the Switch Management Module.

Active

Base MAC Address

Switch Management Module

Installing the Management

Module

Figure 1-1. The Switch 208/224 Management Module

When installed, the Switch Management Module adds these features to your switch:

■ Access to the swit ch console fro m which you can configure, monitor, and

troubleshoot the switch

■ Access to the switch from SNMP network management programs, such

as HP AdvanceStack Assi stant, for controlling th e swit ch usin g an advanced, graphics-based interface

■ Configurable full-duplex port operation

■ Configurable support for the Spanning Tree Protocol for switched

networks

■ Configurable MAC Address Table aging

This chapter shows you how to install your Switch Management Module.

1-1

Installing the Management

Installing the Management Module

Included Parts

Verify that these parts were included with the product:

Module

• Switch 208/224 Management Module

• HP AdvanceStack Switch 208/224 Management Module Installation and Reference Guide (5966-5228), this manual

• Console cable (5182-479 4)

• HP AdvanceStack Assistant for Windows CD kit

• HP AdvanceStack Products CD kit

Installation Steps

Caution Anti-Static Precautions:

Static electrici ty can severel y damage the s ensitive electr onic components on the module. When installing the module in your switch, follow these procedures to avoid damage from static electricity:

■ Handle the module by its edges and avoid touching the components and

the circuitry on the board.

■ Equalize any static ch arge difference betw een your body and the switch

by wearing a wrist static-protector strap and at tach in g it to the switch's metal body, or by frequently touching the switch's metal body while you are installing the module.

1-2

1. Before installing the Switch Management Module, unplug your switch from the power source. This protects the module and switch from potential electrical damage.

2. Unscrew the two captured screws holding the cover plate to the switch's Management Slot and r emove the cover , as shown i n fi gure 1-2. Note t hat the screws will release outward when unscrewed far enough. Do not unscrew them completely from the cover pl ate.

Installing the Management Module

Installation Steps

cover plate

Loosen these

screws

Figure 1-2. Remove the cover plate

3. Insert the Management Module into the switch. Line up the sides of the module with the rails on the sides of the swit ch ’s slot, then push the module into the slot until it is firmly seated in the connector in the back of the slot.

Installing the Management

Module

Switch Management Module

Figure 1-3. Insert the Switch Management Module

4. Tighten the two screws that hold the module in place. Be careful not to overtighten the screws.

1-3

Installing the Management Module

Removing the Module

5. Turn on the power to the switch by plugging in the power cord. During power-on, the following occurs:

Installing the Management

At Power On The swit ch begi ns i ts powe r-o n self test foll owe d by t he m odule ’s self

Module

During Self Test All Swit ch and Mo dul e LEDs a re on f or ap proxi matel y 5 se conds, then

After Self Test The switch Fa ult LED a nd the mo dule LEDs (Self Test and Fault ) turn of f.

test. Ports are temporarily disab led until the Switch Manage m ent Module configures the ports.

just the switch Power and Fault LEDs and the Management Module Self Test and Fault LEDs are on for the remainder of the sel f t est. The switch and m odule self tests require appr oximately 15 sec onds total.

If the module Fault LED stays on or flashes, refer to chapter 7, “Troubleshooting” in this guide.

You have now completed installation and verification of the module. To configure IP/IPXcommunication for the Switch Management Module, see

chapter 4, “Configuring the Switch From the Console”.

Removing the Module

The module is removed from the switch by reversing the installation steps described earlier in this document. When handling the module, be sure to follow the anti-static p recautions described on page 1-2.

To remove the module, follow these steps:

1. Remove power from the switch by unpluggi ng the power cord.

2. Unscrew the two captured screws holding the modul e in t he switch .

3. Pull the module out of the slot.

4. Replace the Management S lot co ver plate.

Caution Replace the cover pla te over the slot using the two screws th at hold it in place.

Be careful not to overtighten the screws. When using the switch, the cover plate must always be ins talled. This is requ ired for safety and to ens ure proper switch cooling.

1-4

Management Module Description

Overview

The HP AdvanceStack Switch 2 08/2 24 Management Module is ins talled i n the Management Slot in the front of either the HP Switch 208T or HP Switch 224T. The Switch Management Module has the physical el ements shown in the figure below.

■ Reset Button - used to reboot the Management Module and the

switch in which it is installed. This cl ears any tempor ary error conditions that may have occurred, executes the module and switch self tests, and returns all network activity counters to zero. The counters are displayed in the switch co n sole interface and through network management applications.

■ Clear Button - used for these purposes:

• When pressed by itself for at least one second, deletes any switch

console access password s that you may have configured. Use this feature if you have misplaced the password and need console access.

This but t on is provided for your convenience, but i t s presence means tha t if you are conce rned wi th the se curit y of the switch configuration and operation, you should make sure the switch with the mana gement module is ins talle d in a se cure loc ation, such as a lo ck ed wiring closet.

2-1

Management Module Description

Overview

Description

• When pressed with the Reset button in a specific pattern, clears

any configuration changes you may have made through the switch console and SNMP management, and restor es the factory default configuration to the switch and the module. See “Restoring the Factory Default Configuration” in chapter 7, “ Troubleshooting” for the specific method to restore the factory default configuration.

■ Self Test LED - When lit, indicates that the Management Module or

the switch in which the module is installed is undergoing its self test, which occurs every tim e the switch is plugged into a power source, or as a result of pressi ng the Reset button on the Management Module, or from rebooting or resetting the switch from the switch console or from network management.

■ Fault LED - When lit with the Self Test LED, indicates that the

Management Modul e is executing its s e lf test. The self test normally takes approximately 10 seconds. If the Self Test and Fault LEDs stay on for longer than this, or if the Fault LED is flashing at an y time, an error has occurred on the module. See chapter 7, “Troubleshooting” for more information on the LED and error recovery procedures.

Management Module

■ Console RS-232 Port - This port is used to connect a console to the

switch, either directly using the serial cable supplied with the Management Module, or through a modem connection. These connections are described in chapter 3, “The Switch Console”. The console can be either a PC running a VT-100 terminal emulator, or a VT-100 termi n a l it self.

■ MAC Address - Thi s is the unique hardware identity of the manag e-

ment module. It is also used to identify the switch into which the module is installed, and can be used in network connectivity tests between the switch and other network devices. In an IPX network, this address is also used as the Node Address part of the IPX network address.

2-2

Management M odule Descript ion

Module Features

Module Feat ure s

When you install the Switch 208/224 Managem ent Module in your Switch 208T or 224T, you get these enhanced sw itch cap ab ilities:

■ Full-duplex port operation. By default, the 10 Mbit/s and

100 Mbit/s ports on the S wi tch 208/224 operate in half-duplex mode. With the Switch Management Module insta lled, these ports can be configured to operate in full-duplex mode.

■ Address Aging. The Switch 208/224 au to mati cally learns the MAC

address of the devices connected to its ports and stores those addresses in an 8000-entry address table. When a device is moved, it s new location is automatically learned and kept in the table so proper communication is maintained with the device. With the Management Module installed, the additional benefit is that inacti ve addresses are aged out of the table -- the table is kept up to date with the addresses of active nodes only.

■ Spanning Tree Support. The Switch 208/224 uses th e IEEE 802.1d

Spanning Tree Protocol (STP) to ensure that only one path at a time is active between any two nodes in the network, thus preventing loops that cause broadcast storms from occurring in the network topology.

Management Module

Description

By default, STP is disabled on the switch. You can use the switch console

to enable STP operati on; see chapter 4, “Config uring the Switch F rom the Console” for those configuration procedures. For more information on how STP works, see appendix D, “Spanning Tree Operation”.

■ Switch Console. The Management Module has an RS-232 port to

which you can connect a console that can be used to configur e, monitor, and troubleshoot the switch and its ports. The console interface can be used “out-of-band” from a PC or terminal directly connected to the port or remotely through a modem connection, or “in-band” through a Telnet session. For more information on the switch consol e, see the se ction “Switch Co nsole Featur es” in chap ter 3, “The Switch Cons ol e”.

■ Networ k Management. The Management Module has firmware

agents on board that provid e SNMP Network Management control of the switch, support for RMON (four groups) and HP Embedded Advanced Sampling Environment (EASE) agen ts to diagnose network problems to help optimize network performance. For more information t he n etw ork management feature s pr o vid ed by the Management Module and how to configure those features, see chapter 6, “Using SNMP to Monitor and Manage the Switch”.

2-3

The Switch Console

Overview

About the Console Inter face. The console in terface enab les you to reco nfigure the switch and to monitor the switch status and performance. It consists of a series of management screens accessed through a menu-driven screen structure that begin s at the Main Menu.

The switch console in terface enables you to use a PC or a terminal to do the following:

■ Modify the switch’s configuration, or provide configuration for Telnet or

network management acc ess from an SNMP-based manage ment program such as Hewlett-Packard’s AdvanceStack Assistant (ASA)

■ Monitor the switch and port status and network activity counters

■ Control console security by configuring passwords

■ Use the switch’s event log and some advanced commands to help in

troubleshooting

■ Download new software

The Switch Console

Note The Switch 208/224 and its Management Module are shipped with a factory

default configuration that enables operation as a multiport learning bridge when installed in a network. All ports are enabled, Spanning Tree Protocol support is disabl ed, and SNMP network management i s enabled over IP X and IP (by way of Bootp). For this operation, co nnec tin g a co nso le device is unnecessary. How ever, for s ome of the o ther u ses listed a bove , yo u will need to use the switch console.

This chapter descri b es the fo llowing features:

■ Connecting a console to the switch (page 3-2)

■ Starting and ending a console session (page 3-6)

■ The Main Menu Features (page 3-8)

■ Screen structure and nav igation (page 3-9)

■ Using password security (page 3-11)

■ Rebooting the switch (page 3-15)

3-1

The Switch Console

Connecti ng a Console to the Switch

Connecting a Console to the Sw it ch

The Switch 208/224 Management Module offe rs t wo methods of acc ess to the console interface:

■ Out-of-band console access:

• Directly connected to the Console RS-232 port, using a serial cable

• Remotely connected to the Console RS-232 port, using modems an d

■ In-Band access using Telnet from a PC or UNIX station on the network,

and a VT-100 terminal emulator. This method requires that you first configure an IP address and subnet mask by using either out-of-band console access or Bootp. The Management Module allows one outbound and one inbound Telnet session to be running simultaneously. It can also simultaneously support one console session through the Console RS-232 port and one Telnet console session.

and a PC running a VT-100 termina l emulator or an actual VT-100 terminal

a PC running a terminal emulator or an actual terminal

You can put sec urity restrictions o n console access by setting Manager-level and Operator-level passwords. See “Using Password Security” later in this chapter.

Default Serial Communication Settings

The default communication settings on the Switch Management Module are:

• 9600 baud

The Switch Console

• 8 data bits

• 1 stop bit

• XON/XOFF

• For Windows Terminal program, also disable (uncheck) the “Use

Function, Arrow, and Ctrl

Configure your PC or terminal to operate with these settings. If you want to operate the terminal using a different configuration, make sure you change with settings on both the terminal an d on the switch . Chan ge th e switch settings first, then change the terminal settings, and reestablish the console session.

Keys for Windows” option.

3-2

Connecting a Console to the Switch

The Switch Console

Direct Console Connection, Using A Serial Cable and a PC Terminal Emulator or Terminal

You can use either a PC emulating a VT-100 terminal (such as the terminal application included with Microsoft Windows 3.1) or a VT-100 terminal.

To directly connect a PC or terminal to a Managem en t Modul e, follow these steps:

1. Connect the PC or terminal to the switch’s Console RS-232 port, on the

Management Module, using an RS-232 -C console cable (included wit h the Management Module). (If your PC or terminal has a 25-pin connector, first attach a 9-pin to 25-pin “straight-through” adapter at one end of the console cable.)

Console RS-2 3 2 Po r t

Figure 3-1. Connecting a PC or Terminal to the Console RS- 232 Port

2. Turn on the terminal or PC’s power (and, if using a PC, start th e PC terminal emulation program).

3. When you see this message:

Waiting for speed sense. Press enter to continue.

Press [Enter]. You wil l then see the switch con sole Main Menu. See “ Starting and Ending a Console Sess ion” on page 3-6.

4. If you want to continue with console managem en t of the switch at this time, refer to the rest of this chapter f or gener al console procedures, to chapter 4, “Configurin g the S wi t ch From the Co n sole”, and to chapter 5, “Monitoring Switch Operation From the Console”.

The Switch Console

3-3

The Switch Console

Connecti ng a Console to the Switch

Remote Console Connection Using a Modem and a PC Terminal Emulator or Terminal

Note For remote console management, use a pair of full-duplex, asynchronous

(character-mode) modem s as shown in figure 3-2.

1. Before installing the modems, make sure they are both correctly initial-

ized. Refer to appendix B, “Modem Configuration” for the correct initialization strings.

2. At the site where the Switch 208/224 is installed: a. Connect the modem to the Switch Management Module’s consol e port

using a standard “straight-through” RS-232-C modem cable. (For modem cable pin-outs, refer to “Modem Cable Pin-Out” on next page.)

b. If necessary, co nfigure t he PC or terminal to operate with the c urrent

serial link configuration of the Switch Management Module.

3. At the site where the console is to be located, conn ect th e PC emul ating a terminal, or a term inal to the modem using a stand ard RS-232-C mod em cable. Make s ure the t erminal and modems are fu nctioning proper ly, then establish the link between the terminal’s modem and the switch’s modem according to the modem instructions.

“straight-through”

RJ-11 telephone cable

The Switch Console

“straight-through”

modem cable

RJ-11 telephone cable

Exter nal modem

(You can al so use an internal modem.)

modem cable

Switch with Management Module

External modem

PC running a VT-100 terminal program or a VT-100 terminal

Figure 3-2. Example of Remote Access through a Modem Connection

3-4

Connecting a Console to the Switch

The Switch Console

4. When you see this message:

Waiting for speed sense. Press enter to continue.

Press [Enter]. You wil l then see the switch con sole Main Menu. See “ Starting and Ending a Console Sess ion” on page 3-6.

5. If you want to continue with console managem en t of the switch at this time, refer to the rest of this chapter f or gener al console procedures, to chapter 4, “Configurin g the S wi t ch From the Co n sole”, and to chapter 5, “Monitoring Switch Operation From the Console”.

Modem Cable Pin-Out

Modem end 25-pin male

23Tx 32Rx 47RTS 58CTS 66DSR 75GND

81CD OR DCD 20 4 DTR 22 9 RI 23 DRS –typically on V.24 (European) modems

Switch end 9-pin male Signal

(not connected)

The Switch Console

3-5

The Switch Console

Starting and Ending a Console Session

Note This section assumes that you have already configure d and co nnected a

terminal device to your switch (as described earlier in this chapte r) o r that you have already enabled Telnet access to the switch. (To enabl e Telnet

access, refer to “Cons ol e Co n f igu ration” on page 4-16.)

How To Start a Console Session:

1. Start your PC terminal emulator, terminal, or Telnet session on a remote terminal device.

2. Do one of the following:

• If you are using Telnet, go to the next step.

• If you are using a PC terminal emulator or a terminal, you should then

see the following prom pt:

Waiting for speed sense. Press <Enter> to continue.

Note: If the console displays a series of random and/or unread- able characters instead of the above prompt, the Baud Rate setting for the terminal may be different from that of the console interface. The switch’s autosensing feature remedies this prob-

lem when you press any key. You may have to press the key a few times.

Press [Enter] and go to the next step.

3. A message indicatin g the baud rate at which the serial inter face (Console

The Switch Console

3-6

RS-232 port) is operatin g is br iefly displayed, followed by the copyright screen. Do one of the following:

• If a password has been set, the Password prompt appears. Type the

password and press [Enter] to display the Main Menu (figure 3-3).

• If no password has been set, you will see this prompt:

Press any key to continue.

Press [Enter] to display the Main Menu (figur e 3-3).

If there is any system-down information to report, the switch displays it in this step and in the Event Log.

Starting and Ending a Cons ole Session

The Switch Console

Figure 3-3. The Main Menu

For a description of Main Menu features, refer to “Main Menu Features” on page 3-8.

How To End a Cons ole Session:.

1. If you have not made configuration changes in the current session, return to the Main Menu, highlight LOGOUT , and press [Enter].

2. Configuration changes requiring a reboot of the switch are indicated by an asterisk (*) next to the configured item in the Configuration menu. (See “Rebooting To Activate Configuration Changes” on page 3-16 .) If you have made configuration ch an ges that require a reboot of the switch in ord er to take effect:

a. Return to the Main Menu. b. Us e the arrow keys ( [<] , [>] , [v] , and [^] ) to highlight Reboot Switch

in the Main Menu and press [Enter] to reboot.

c. When the reboot completes, the switch automatically reestablishes

the console connection, and you can restart your console session, as described on the previous page. Or, if you have finished using th e console, you can cl ose the terminal emula tion program before res tarting the console session.

3-7

The Switch Console

Main Menu Features

The Main Menu (figure 3-3 on page 3-7) gives you access to these console interface features:

• Status and Counters: Displays information on the switch,

individual ports, the address tables, and Spanning Tree Protocol settings. (Refer to chapter 5, “Monitoring Switch Operation From the Console”.)

• Event Log: Enables you to read progress and error messages that

are useful for checking and troubleshooting switch operation. A listing of Event Log messages is included on the CD shipped with your Switch Management Module. (Refer to “Event Log” on page 5-12.)

• Configuration: Enables you to display the current configuration

settings and to reconfigure individual parameters. (Refer to chapter 4, “Configuring the Switch From the Console”.)

• LOGOUT: Disconnects Telnet or modem access to the switch. (Refer

to “How To End a Console Session” on page 3-7.)

• Advanced Commands: Provides access to a set of system manage-

ment, monitoring, and troubleshooting commands that generally require greater knowledge of networking. These commands are listed at the end of this chapter under “Advanced Commands”, and they are described from the command prompt by entering Help .

• Set Passwords: Enables you to set Operator and Manager pass-

words to help restrict who has access to the console interface. (Refer to “Using Password Security” on page 3-11.)

• Download OS: Enables you to download new software to the

M a n a g e m e n t M o d u l e . ( R e f e r t o a p p e n d i x C , “ F i l e T r a n s f e r s ” . )

• Reboot Switch: Performs a software reboot, which is required (in

some cases) to activate configuration changes that have been made. (Refer to “Rebooting To Activate Configuration Changes” on page 3-16.)

3-8

Screen St ructure and Navigation

The Switch Console

Screen Structure and Navigation

Console screens in clu d e th ese three elements:

■ Parameter fields and/or read-only information such as statistics

■ Navigation and configuration actions, such as Save, Edit, and Cancel

■ Help line to describe navigation options, individual parameters, and read-

only data

For example, in the System configur ation screen:

system name

actions line

Help line describing the selected action or selected parameter field (in thi s case, t he Cancel option)

param eter fields

Help descri bing each of the items in the paramet er m enu

The Switch Console

navigat ion instructions

Figure 3-4. Elements of Screen Structure

“Form s ” Design. The configuration screens, in particular, operate similarly to a number of PC applications that use forms for data entry. When you first enter these screens, you see the curren t co n f igu r ation for the item you have selected. To change the configu ration, the basic operation is to:

1. press [E] to select the Edit action

2. navigate through the screen making ALL the necessary configuration changes, then

3. press [Enter] to return to the action line. F r om there you can select to save the configuratio n changes or to cancel the changes. Cancel returns the configuration to the val ue s you saw when you first entered the screen.

See the next page for specific instructions on using the console screens.

3-9

The Switch Console

Screen St ructure and Navigation

Table 3-1. How To Navigate in the Console

Task: Actions:

Execute an acti on fr om an

“Actions-[>] list:

Use either of the followi ng methods:

■ Use the arrow keys ( [<] ,or [>] ) to highl ight the actio n you

want to execute, then press [Enter].

■ Press the key correspondi ng to the capital letter in the

action name . For example, in a configu ration menu, press [E] to select Edit and begin editi ng paramet er values.

Reconfigure (edit) a parameter setting or a field:

1. Select a confi guration i tem, such as System. (See figur e 3-

4.)

2. Press [E] (for E

dit on the Actions line).

3. Use [Tab] or the arrow keys to highlight the item or field.

4. Do one of the following:

• If the par amet er has pr eco nfigu red va lues, us e the Spac e bar to select a new option (the help line instructs you to “Sel ect” a val u e)

• If there are no preconfigured values, type in a value (the help line instructs you to “Enter” a value)

5. If y ou want to ch ange an other pa ramete r val ue, ret urn t o ste p

6. If you are finished editing parameters in the displayed screen, press [Enter] and do one of the following:

• To save any configuration changes you have made (or if

you have made no changes), press [S] (for the Save action).

• To exit from the screen without saving any changes that

you ha v e m ade, pr e ss [C] (for Cancel).

Note:

Some parame ter changes are activat ed w hen you execute Sav e, and i t is t her efor e not necessa ry to r eboot t he switch after making the se changes. But if an asteri sk appears next to any menu item you reconfigure, it is necess ary to

The Switch Console

reboot th e switch to implement the change. In this case, rebooting should be done after you have made all desi red changes and t hen returned to the Main Menu.

7. When y ou are fi nished editing paramet ers, re turn t o the Mai n Menu.

8. If nece ssary, reb oot the switch by hi ghlightin g Reboot Switch and pressing [Enter]. (Refer to t he

Note

, above.)

3-10

The Switch Console

Using Password Security

There are two levels of console access: Man ager and Operator. For security, you can set a password on each of these leve ls.

Level Actio n s P er m it ted

Manager: Access to all console interface areas.

This is the defaul t level .

to starting the current console session, then anyone using the console can access any ar ea of the console interf ace.

Operator: Access to the Status and Counters, Event Log, and minimal Configuration.

Use of the LOGOUT command. On the Operator level, the Advanced Commands, Set Passwords, Download

OS, and Reboot options are no t available in the Main Menu.

That is, if a Manager password h as

not

been set prior

To use password security:

1. Set a Manager password (and an Operator password, if applicable for your situation).

2. Activate the passwor d(s ) by exiting from the current console session.

If you do steps 1 and 2, above, then the next time a console session is started, the console interface will prompt you for a password. Assuming that both a Manager password and an Operator password hav e been set, the level of access to the console interface will be determined by which password is entered in response to the prompt.

If you set a Manager password, you may also want to configure the Connection Inactivity Time parameter in the Serial Link configuration screen (page 4-15 ). This caus es the consol e session to end after the speci fied period of inactivity, thus giving you added security against unauthorized console access. (Once a Manager password is set and the console ses sion is ended, access to the full cons o le in ter f ace for any subsequent sessio n s requires the Manager password t o be entered .)

The Switch Console

3-11

The Switch Console

Using Pas sw ord Security

Note If there is only a Manager password set (with no Operator password), and the

Manager password is not entered co rrectly when the co nsole sess ion begin s, the switch console operates on the Operator level.

If there is both a Manager password and an Operator password, but neither is entered correctly, access to the console will be denied.

If a Manager password is not set, anyone having access to the console interface can operate the console with full manager privileges, regardless of whether an Operator password is set. It is recommended that if you want to restrict access to the console, you should always set at least a Manager password. Then, if you also want to restrict access to the minimal Operator capabilities, also set an Operator password.

Passwords are case-sensitive.

The rest of this section covers how to:

■ Set a Password

■ Delete a Password

■ Recover from a Lost Password

To set Manager and Operator pass w ords:.

1. From the Main Menu select Set Passwords. This screen appears:

The Switch Console

Figure 3-5. The Set Password Screen

3-12

The Switch Console

Using Password Security

2. To set a new password: a. Select Set Manager Password or Set Operator Password.

You will then be prompted with Enter new password.

b. T yp e a password of up to 16 characters and press [Enter]. (Remember

that passwords are case-sensitive.)

c. When prompted with Enter new password again, retype the

new password and press [Enter].

d. To set another password, return to step 2a. Otherwise, go to step 3.

3. Select Return to Main Menu to exit from the Set Password screen.

After a password is set, if y ou use LOGOUT or reboot or reset the switch, you will be prompted to enter the password to start a new console session.

To Delete Password Protection:

This procedure deletes both passwords (Manager and Operator).

1. Enter the console at the Manager level.

2. From the Main Menu select Set Passwords. You will then see the screen shown in figure 3-5.

3. Select Delete Password Protection. You will then see the following prompt:

Continue Deletion of password protection? No

4. Press the Space bar or press [Y] to select Yes, the n p re ss [Enter].

5. Press [Enter] to clear the Password protection messag e.

6. Select Return to Main Menu to exit from the Set Password screen.

To Recover from a Lost Manager Pass word:

If you cannot start a console ses sion at the manager level because of a lost Manager password, you can clear t he password by getting physical acces s to the switch and pressing and holding the Clear button on the Management Module for at least one second.

The Switch Console

3-13

The Switch Console

Using Pas sw ord Security

To Recover from a Lost Operator Password:

To recover from a los t Oper ator pa ssword, del ete al l passw ords as des cribed above, then re -enter new passwords. If you have phys ical access to the switch, press the Clear button on the Management Module to clear all password protection, then ente r new passwords as described earlier in this chapter. If you do not have physical access to the switch, you will need the Manager password:

1. Begin a console session at the Manager level (by entering the Manager password when the password prompt appears).

2. Select Set Passwords from the Main Menu.

3. Select Delete Password Protection.

4. When you see the prompt to continue delet ion, use the Space bar to select

Yes, then press [Enter]. You will then see the following message:

Password protection removed.

This means that both the Manager and Operator password s have been removed and the switch no longer has password protection.

5. Press [Enter].

6. Set new passwo r ds as described on page 3-12.

The Switch Console

3-14

The Switch Console

Rebooting the Switch

Rebooting the switch terminates the current console session and performs a reset of the operating system. Some of the reasons for performing a reboot include:

■ Activating certain configuration changes that require a reboot

■ Resetting statistical counters to zero

■ Clearing the switch address table

To Reboot the switch, use the Reboot Switch option in the Main Menu. (If a Manager password has been previously set, Reboot Switch appears only if this password is entered at the beginning of the console session.)

the Reb oo t Sw itch opt i on

Figure 3-6. The Reboot Switch Option in the Main Menu

The Switch Console

3-15

The Switch Console

Rebooti ng the Switch

Rebooting To Activa te Configur a tion Changes . Configuration changes for some parameters become effective as soon as you save them. However, you must reboot the switch in order to implement any changes to any parameters in the following areas:

■ IPX Service

■ Internet (IP) Service

■ Serial Link

If configuration changes requiring a reboot have been made, the switch console displays an asterisk next to the configuration menu item in which the change has been made. For exampl e, if you change and save paramet er values

for the swi tch ’s IP configuration, the need for rebooting the sw itch would be indicated by an asterisk appearing in the following screen:

asterisk indicates a configuration change that requires a reboot in order to take effect

The Switch Console

reminder to reboot the sw itch to activate configuration changes.

Figure 3-7. Example of a Confi guration Change Requiring a Reboot

3-16

The Switch Console

Advanced Commands

Advanced Comm a nds

Selecting Advan ced Commands fr o m the Main Menu pres ents a command prompt from which you can enter the fol lowing system management commands:

Listing of Commands Available under Advanced Commands

! Get (TFTP) Ping Time ClearLED Help Print Version Config History Put (TFTP) W alkMIB Date IPXPing Redo Zget Delete LinkTest Repeat Zput Exit Log SetMIB GetMIB Page Telnet

To get a definition of these commands and their syntax, enter Help at the

command prompt. When you see — MORE — at the bottom of the screen:

■ To advance the display one line at a time, use [Enter].

■ To advance the display one screen at a time, use the Space bar.

The Switch Console

If you want to stop the help listing, press [Q].

How To Use the A dvanced Comm ands:

1. To access the command prompt, use the arrow keys to highlight Advanced Commands in the Main Menu and press [Enter].

2. The command prompt ap pears near the b ottom of the scre en. The te xt in the prompt matches the System Name parameter. For example, in the factory default configuration (no system name configured), the command prompt is DEFAULT_CONFIG:

3. Type in the command you want to execute and pre ss [Enter]. For example, to set the time to 9:55 a.m. you would execute the following co mman d:

DEFAULT_CONFIG: time 9:55 [Enter]

How To Exit from the command prompt:

Type exit and press [Enter] to return to the Main Menu.

3-17

Configuring the Switch From the Console

Overview

This chapter provides an overview of the Switch 208/ 224 Management Module configuration features.

Default Configuration. In its factory default configuration, the Switch 208T and 224T with a Switch Management Module installed automatically operates as a multiport learning bridge. All ports are enabled, Spanning Tree Protocol support is disabled, and SNMP network management is enabled over

IPX and IP (by way of Bootp).If you wish to “fine-tune” your switch for the specific performance, security, and diagnostic needs in your network, you may choose to reconfigure cer tain switch parameters.

Note In the factory default configuration, the Spanning Tree Protocol (STP) is off.

However, if the topology of your network includes any redundant data paths between switches or bridges, you should enable support for STP. See “Spanning Tree Configuration” (page 4-17).

Configuration Features. The Switch Management Module enables you to configure the following switch features. For information on individual configuration parameters, use the online Help provided with each configuration screen in the console user interface.

■ System (page 4-4)

■ Ports (page 4-5)

■ IPX Service (page 4-6)

■ Internet (IP) Service (page 4-8)

■ SNMP Communities (page 4-12)

■ Trap Receivers (page 4-14)

■ Serial Link (page 4- 15)

■ Console (page 4-16)

■ Spanning Tree (page 4-17)

■ Network Monitoring Port (page 4-19)

4-1

Configuring the S witch From

the Console

Configuring the Switch From the Console

Overview

To get Help on indi vidu al parameter descripti ons. In all screens except the Advanced Commands screen there is a Help option in the Actions menu. Whenever the Actions menu is acti ve, you ca n display Help for that

screen’s parameters by pressing [H]. (The Actions menu is active whenever any of the choices in the Actions menu is highlighted.) For example:

highlight on any item in the Actions menu indicates t h at th e Actions menu i s

help line

default values are shown in brackets [ ]

pressing [H] or highlighting

elp and pressing [Enter]

H displays He lp f or th e parameters listed in the upper par t of the screen

Configuring the Swi tch From

Figure 4-1. Example Showing How To Di splay Help

To get Help on the actions or data fields in each screen: Use the arrow keys ( [<], [>], [^], or [v]) to select an action or data field. The help line under the Actions menu describes the currently selected action or data field. (For guidance in how to navigate in a configuration screen, see the in structions provided at the bottom of the screen, or refer to “Scre en Structu re and Navigation” on page 3-9.)

the Console

4-2

Configu ring the Switch From the Console

Configurable Features

Configurable Fea ture s

How To Access the Switch Configuration:

1. Begin at the Main Menu and select Configuration and the Confi guration menu appears as shown in figure 4-2.

Figure 4-2. The Configurat ion Menu

2. Use the arrow keys ( [<], [>], [^], and [v] ) to highlight the configuration topic you want, then press [Enter].

3. Refer to the appropriate sections in the remainder of this chapter for information on config uring specific features.

Configuring the S witch From

the Console

4-3

Configuring the Switch From the Console

Configurable Featur es

System Configuration

This screen configures basic switch management information, including system identification information, address aging, the port LED behavior, and time zone parameters :

system name

Configuring the Swi tch From

Figure 4-3. The System Configuration Screen (Default Values)

Note To help simplify administration, it is recommended that you configure

System Name to a character string that is meaningful with in yo u r system. To set the time and date, set the Time Protocol parameters for your time server

(page 4-8) or use the time and date commands available under Advanced Commands.

10 Mbit/s Port LED Mode. Using this parameter , the LEDs associated with the 10 Mbit/s network ports on the switch can be configured to operate in one of two ways:

■ Link/Activity - In this mode, each LED indicate s the connection statu s of

the port for 3 seconds after the networ k cable is first installed and every time the switch is powered on. After 3 secon ds, the LED is used to indicated network acti vity on that port--it flashe s briefly with each packet

the Console

4-4

that is either recei ved or tran smi tted on the port.

■ Link Only - In this mode, the LED continues to indicate the connection

status and does not convert to an activity indicator.

Configu ring the Switch From the Console

Configurable Features

Port Configuration

This screen configu res the operating state (e nabled or disabled) and mode for each port. The availabl e modes for each p o rt type are listed and des cribed in the online help for the screen. To view this information, select the Help action .

The read-only fields in this screen display the port numbers and port types.

read-only fields

Figure 4-4. Example of the Port Configuration Scree n

The screen image in figur e 4-4 sho ws the default Mode value for each of the port types availabl e on the Switch 208/224. Select the Help actio n to see the other modes available for each p o rt type.

4-5

Configuring the S witch From

the Console

Configuring the Switch From the Console

Configurable Featur es

IPX Service

The Switch Management Module, by default, has IPX communication enabled. This allows the switch to be managed from an SNMP network management station in an IPX network. The Switch Management Module automatically configures the IPX network address using its MAC address as the node address (displayed i n th e Node Address field in t he I PX Ser vice configurat ion screen as shown in figure 4-5), and it learns the IPX network number by listening on the network.

In the IPX Service confi gura tion scree n, you can disabl e IPX manageme nt by changing the IPX Enabled va lue to No . You can al so configur e an IPX ga teway frame encapsulation type so that the switch can be managed from a remote IPX network as described in the next section.

read-only fi eld

Configuring the Swi tch From

default setting for

“IPX Enabled”

Figure 4-5. The IPX Service Configuration Screen (Default Values )

the Console

4-6

Configu ring the Switch From the Console

Configurable Features

(Optional) How To Configure IPX for Management from a Remote IPX Network. To enable management from a remote IPX network, you must

configure the gateway encapsulation type.

1. From the Configuration screen, select IPX Service to display the above screen.

2. Press [E] (for E

dit).

3. If the IPX Enabled parameter is not already set to “Yes” (the factory default), then select this parame ter and p ress the Spa ce bar to sel ect Yes .

4. Select the Gateway Encap field and use the Space bar to select the appropriate gateway encapsulation for the gateway device.

5. Press [Enter], then [S] (for S

ave).

6. Return to the Main Menu and reboot the switch.

4-7

Configuring the S witch From

the Console

Configuring the Switch From the Console

Configurable Featur es

Interne t (IP) Service

For managing the Switch 208/224 from an SNMP network management station over an IP network, or for using the switch console through a Telnet session, use the IP Service screen to configur e:

■ IP address, subnet mask, and (optionally) the gateway address for the

switch so that it can be managed in an IP network

■ The time server information (used if yo u want the switch t o get it s tim e

information from another device operating as a Timep server)

You can manually configure an IP address, subnet mask, and a Gateway IP address by setting the IP Config parameter to Manual. Or, you can use Bootp to configure IP for the switch from a Bootp server. In this case you must also configu re your Bootp server accordingly. If you plan to use Bootp, refer

to “Bootp Operation” in chapter 6, “Using SNMP to Monitor and Manage the Switch”. Otherwise, set the IP Config parameter to Manual and then manually enter the IP address an d subnet mask yo u want for the Switch 208/

224.

Configuring the Swi tch From

The default setting f or Tim e Protoco l Enabled is No. Setting it to Yes as shown here, then pr essing [v] or [Tab] causes the Timep Server Address an d Timep Poll Interval parameters to appear. For descript ions of these parameters, select the Help action for this screen.

Figure 4-6. Example of the IP Serv ice Configuration Screen (Default Values)

the Console

4-8

Configu ring the Switch From the Console

To manually configure the switch for IP:

1. From the Configuratio n screen, select Internet (IP) Service to display the above screen.

Configurable Features

2. Press [E] (for E

3. Select the IP Config field and use the Space bar to select Manual.

4. Select the IP Address field and enter th e IP address you want to assign to the switch.

5. Select the Subnet Mask field and enter the subnet mask for the IP address.

6. If you want to reach off-subnet destinations, select the Gateway field and enter the IP address of the gateway router.

7. Press [Enter], the n [S] (for S

8. Return to the Main Menu and reboot the switch.

dit).

ave).

Using Bootp

In its default configuration, the switch is configured to enable Bootp operation. However, if an IP address has previously been configured or if the IP Config parameter has been set to Disabled, then you will need to use thi s procedure to reconfigure the parameter to enable Bootp operation.

This procedure assum es that a Bo otp database record has already bee n entered into an appropriate Bootp server, and that the necessary network

connections are in pla ce. For samples of Bootp server table entr ies, see “Bootp Database Entries” later in this chapter.

To configure the switch for Bootp:

1. In the Main Menu, select Configuration .

2. In the Configuration screen select Internet (IP) Service.

3. Press [E] (for Edit mode), then use [v] to move the cursor to the IP Config parameter field.

4. Use the Space bar to select the Use Bootp option for the IP Config parameter. (This disables access to the IP Address, Subnet Mask, and Gateway parame te rs .)

5. Press [Enter] to exit from edit mode, then press [S] to save the configura tion change.

4-9

Configuring the S witch From

the Console

Configuring the Switch From the Console

Configurable Featur es

When you reboot the switch with Bootp enabled, it will do one of the foll owing:

■ Receive a minimal configuration (IP address and subnet mask).

■ If the reply provides information for downloading a configuration file, the

switch then uses TFTP to d ownload th e file from the designated so u rc e, then reboots itself . (This assu mes that the switch has co nnectivi ty to the TFTP file server specified in the Bootp database configuration record and that the Bootp database reco rd is correctly config ured.)

Bootp Operation

Bootp is used to download configuration data to the switch from the Bootp server that is configured on the switch. Either a minimal IP configuration or a full configuration can be retrieved from the Bootp server.

Note The switch supports only the DHCP (Dynamic Host Configuration Protocol)

implementations that are backwards compatible with Bootp.

The Bootp Process

Whenever the switch reboots with the IP Config parameter set to Use Bootp (the default), Bootp requests are broadcast on all local networks. When the Bootp server receives the request it searches its Boot p d atabase for a reco rd entry that matches the Switch Management Module MAC address, which is in the Bootp request. If a match is found, the configuration data in the associated database record is returned to the switch. For most Unix systems, the Bootp database is contained in the /etc/bootptab file.

Configuring the Swi tch From

Bootp Database Record Entries

An entry in the Bootp table file /etc/bootptab to update an IP address and subnet mask to the switch configured in the switch would be similar to this entry:

switch208224:\

ht=ether:\ ha=080009123456:\ sm=255.255.248.0:\ lg=11.22.33.44:\ hn:\ ip=55.66.77.88:\ vm=rfc1048:

the Console

4-10

Configuring the Switch From the Console

Configurable Features

An entry in the Bootp table file /etc/bootptab to tell the switch where to obtain a configuration file download would be similar to this entry:

switch208224:\

ht=ether:\ ha=080009123456:\ sm=255.255.248.0:\ lg=11.22.33.44:\ hn:\ ip=55.66.77.88:\ T144="switch.cfg":\ vm=rfc1048:

where:

switch208224 is a user-defined symbolic name to help you find the correct section

of the bootptab file. If you have multiple switches that will be using Bootp to get their IP configuration, you should use a unique symbolic name for each switch.

ht is the “hardware type”. For the HP AdvanceStack switch, set this

to ether (for Ethernet). This tag must precede the ha tag.

ha is the “hardware address”. Use the Switch Management Module's

12-digit MAC address. Make sure you use the address displayed

on the front of your Switch Management Module.

sm is the subnet mask of the subnet in which the switch is installed. lg TFTP server address (source of final configuration file). hn send nodename (boolean flag, no “=value” needed). ip is the IP address to be assigned to the switch. T144 is the vendor-specific “tag” assigned to HP; the name of the

configuration file to download is in quotes.

vm is a required entry that specifies the Bootp report format. For the

HP AdvanceStack switch, set this parameter to rfc1048.

Notes for the bootptab file:

■ Blank lines and lines beginning with the pound sign (#) are ignored.

■ Make sure you include a colon (:) and a back slash (\) as a continuation

indication at the end of each line except the last one. The last line should end with just a colon (:)

■ Spaces are not allowed between the characters on a line.

■ Names, such as switch208224 must begin with a letter and can only

contain letters, numbers, periods, or hyphens.

Configuring the Switch From

the Console

4-11

Configuring the Switch From the Console

Configurable Featur es

SNMP Communities

This screen enables you to add, edit, or delete SNMP communities. Use this feature if you expect to manage the Switch 208/224 from an SNMP management station. You can configure up to five SNMP communities, each with either an operator-level or a manager-level view, and either restricted or unrestricted write access. (For more on this topic, refer to chapter 6, “Using

SNMP To Monitor and Manage the Switch”, and to the online Help.)

This screen gives an overview of the SNMP communities that are current ly configu red. All fie lds in this scr een are read-only.

Add and Ed it o ptions are used to mo dify the SNMP options. See figure 4-8.

Configuring the Swi tch From

Figure 4-7. The SNMP Communities Screen (Default Values)

Caution Deleting the community named “public” disables many network management

functions (such as auto-discovery, traffic monitoring, and threshold setting). If security for network management is a concern, it is recommended that you change the write access for the “publ ic” community to “Restricted”.

How To Conf igure the Switch for SNMP Communities.

Ensure that the switch has been configured for IP and/or IPX service.

the Console

4-12

1. From the Configuration screen, select SNMP Communities to display a screen similar to figure 4-7.

2. Press [A] (for A

dd) to display the following screen:

Configu ring the Switch From the Console

Configurable Features

If you ar e ad ding a community, the fields in this screen are blank.

If you are editing an existing com m unity, th e values for the selected community appear in the fields.

type the value for this field

use the Space bar to select val ues fo r other fields

Figure 4-8. The SNMP Communities Add or Edit Screen

Note If you choose to not restrict the use of a community to specific network

management stations, you do not need to list the manager addresses on this screen. You can use this screen to just configure community names and to set the MIB View and Write Access for each community.

All community nam es tha t you create u sin g this s creen can be use d to acces s the switch into which the Switch Management Module is installed. Any management sta tion using the correc t community name may access the switch with the correspondi n g MIB Vi ew and Wri t e Access levels.

If you want to restrict access to one or more specific management st ations for a given SNMP community, lis ting the addresses of those stati ons on this screen creates that limitatio n . For each SNMP Community, you can authorize up to ten management stations by entering their IP and/or IPX addresses into the Manager Address field.

3. Enter the appropriate value in each of the above fields (u se the [Tab] key or arrow keys to move from one field to the next).

4. Press [Enter], then [S] (for S

ave), and the new SNMP Community configu-

ration is automatically activated.

5. Return to the Main Menu to access other functions.

4-13

Configuring the S witch From

the Console

Configuring the Switch From the Console

Configurable Featur es

Trap Receivers

This screen enables you to configure up to ten IP and/or IPX management stations (trap receivers) to receive SNMP trap packets sent from the switch. Trap packets describe speci fic event types. (These events are the same as the log messages dis p layed in the event log.) The protocol, addr ess , and community define which ma nagement stations r eceive the traps . Check the event log to help determine why the authentication trap was sent. (Refer to chapter 3 for information on the event log.)

Configuring the Swi tch From

Figure 4-9. The Trap Receivers Configuration Screen (Default Values)

the Console

4-14

Configu ring the Switch From the Console

Configurable Features

Serial Link Configuration

Use the serial link configuratio n screen to adjust the console RS-232 configuration to customize the connection with the PC, terminal, or modem you are

using for console access. Refer to appendix B, “Modem Configuration” for information on modem settings. Refer also to “Console Configuration” on the next page.

Figure 4-10. The Serial Link Configuration Screen (Defau lt Values)

Configuring the S witch From

the Console

4-15

Configuring the Switch From the Console

Configurable Featur es

Console Conf igu rat ion

This screen lets you enable or disable inbound Telnet access and control the types of events displayed in the event l og. Also specifies the terminal t ype and the console screen refresh interval used by the st atistics screens (that is, the frequency with which statistics are updated on the statistics screens).

Note “Inbound” Telnet is Telnet access to the switch console from another device.

“Outbound” Telnet, which is using Telnet through the switch console to access another device, is always enabled as long as the Switch Management Module has been configured with a valid IP address. (To configure an IP address for the switch, refer to “Intern et ( I P) Serv ice Features” on page 4-8.)

The Switch Management Module supports one inbound and one outbound Telnet sessions simultaneously.

default i nbound Telnet setting

Configuring the Swi tch From

Figure 4-11. The Console Configuration Screen (Default Values)

the Console

4-16

Configu ring the Switch From the Console

Configurable Features

Spanning Tree Configuration

Use this screen t o activa te the IEEE 802. 1d Span ning Tree Protocol (S TP) on the switch and to a djust spanning tr ee parameters , if necessary . In the factory default, STP is off. If there are any redundant paths (loops) between nodes in your network, you should set the Spanning Tree Enabled parameter to Yes. This ensures that all redundant ports (those providing backup parallel connections) are in a blocking state and not used to forward data.

The switch automatical ly senses port identity and type, and automatic ally defines port cost and prio rity for each type. The inte rface allo ws you to adju st the Cost and Priority for each port, as well as the global STP parameter values for the switch.

To configure the STP parameters: In most cases, the default STP parameter settings are adequ ate. In cases where it is n ot, use this proced ure to make configuration ch anges.

Caution If you en able STP (s tep 4), it is recommen ded that you leave the remainder of

the STP parameter settings at their default values until you have had an opportunity to evaluate STP performance in your network. Becaus e incorrect STP settings can adversely affect network performance, you should avoid making changes without having a strong understanding of how STP operates.

To learn the details of STP operation, refer to appendix D, “Spanning Tree Operation”, and examine the IEEE 802.1d standard.

1. From the Main Menu, select Configuration.

2. In the Configuration sc re en , sel ect Spanning Tree .

3. Select Edit to highlight the Spanning Tree Enabled parameter.

4. Press the Space bar to select Yes . (This enables STP.)

Configuring the S witch From

the Console

4-17

Configuring the Switch From the Console

Configurable Featur es

Figure 4-12. Example of the STP Configuration Screen

5. If the remaining STP parameter setti n gs ar e ad equ ate fo r your ne twork , go to step 8.

Configuring the Swi tch From

the Console

6. Use [Tab] or the arrow keys to select the next parameter you want to change, then type in the new value. (If you need information on STP parameters, press [Enter] to select the Actions line, then press H

to get

help.)

7. Repeat step 6 for each additiona l para meter yo u want to change.

8. When you are finished editing parameters, press [Enter] to return to the Actions line.

9. Press [S] to save the currently displayed STP parameter settin gs and return to the Configuration menu. The Spanning Tree configuration is automatically activated when it is saved.

10. Return to the Main Menu to access other functions.

4-18

Configu ring the Switch From the Console

Configurable Features

Network Monitoring Port

You can designate a port for monitoring traffic on any one of the other ports on the switch. This is accomplished by copying all traffic from the specified port to the designated monitoring po rt. The feature is also referred to as

“mirroring”.

How To Conf igure the Switch for Monitoring: This procedure describes configuring the switch for monitoring when monitoring is disabled. (If monitoring has already been enabled, the screens will appear differently than shown in this procedure.)

1. Select Network Monitoring Port from the Configuration screen.

2. In the Actions menu, press [E] (for Edit).

3. If monitoring is currently disabled (the default) then enable it by pressing the Space bar (or [Y] ) to select Yes.

enable monitoring by setting this parameter

to “Yes”

Figure 4-13. The Default Network Monitoring Configuration Screen

4. Press [v] to display a screen si milar to the fol lowing an d move the cursor to the Monitoring Port parameter.

4-19

Configuring the S witch From

the Console

Configuring the Switch From the Console

Configurable Features

Figure 4-14. Example of Selecting a Monitoring Port

5. Press the Space bar or type the port number to select which port to use for the monitoring port

Configuring the Swi tch From

6. Press [v] to move to the Monitored Port field and press the Space bar or type the port number to select the port you want to monitor.

7. Return to the Main Menu to select other functions. You don’t need to

reboot the switch; the Network Monitoring Port configuration is dynamically activated .

Note The port you select as the Monitoring Port is identified on the port status and

counter screens and the port configuration screens with -MP after the port number

The port you select as the Monitoring Port cannot participate in Spanning Tree protocol, so it will not be displayed on the Spanning Tree configuration or status screens.

the Console

4-20

Configu ring the Switch From the Console

Saving Configurations

Once you have completed all your switch configuration changes , it is a good idea to save the configuration in a secure location. The co n f igu ration is

contained in a file that can be transferred to a PC or server. See “Transferring Switch Configurations” in appendix C, “File Transfers” for the procedures to save your switch configuration.

4-21

Configuring the S witch From

the Console

Operation From the Console

Monitoring Switch Operation From the Console

Overview

The Main Menu in t he switch’s console interface gives you access to the

following sources of read -o n ly d ata fo r hel pin g yo u to monitor, analyze, and troubleshoot switch operation:

Table 5-1. Read-Only Monitoring and Analyzing Features

Main Menu Item

Status and Counters Menus

Data Type Purpose

Switch Information Lists switch-level operating information.

Port Status Displays the operational status of each port. Port Counters Summarizes port activity.

Monitoring Switch

Address (forward ing) Table Lists t he MAC addre sses of nodes th e switch has

detected on the network, along with the corresponding switch port.

Port Address Table Lists the MAC addresses that the switch has

learned from the selected port.

Spanning Tree Information Lists Spanning Tree data for the switch and for

individual ports.

Event Log Lists event messages generated by the switch.

5-1

Monitoring Switch

Monitor ing Switch Operation From the Console

Status and Counters Menu

Status and Co unters Menu

Select Status and Counters from the Main Menu to display the Status and Counters menu:

Operation From the Console

5-2

Figure 5-1. The Status and Counters Menu

Each of the above menu items accesses the read-only screens described on the following pages. Refer to the online help for a description of the entries displayed in these screens.

Monitoring Switch Operation From t he Console

Status and Co unters Menu

Switch Information

Figure 5-2. Example of Switch Information

This screen tells you the foll o wi ng inf orm atio n ab out the switch and the Switch Management Module:

■ the version of the OS (operating system) code

■ the version of the ROM (read-only memory) code

■ the MAC address of the Switch Management Module

■ the identity of the expansion module, if one is installed in the Expansion

Slot in the back of the switch:

• None indicates that no module is installed

• Router/Rem Access indicates that a r outer m odule ( for ex ample,

the HP J3138A Internet Router Module), or a remote access module (for example, th e HP J3230A LanRover/10A by Shiva) is in stalled.

■ a dynamic indication of how individual switch resources are being used

Operation From the Console

Monitoring Switch

5-3

Monitoring Switch

Monitor ing Switch Operation From the Console

Status and Counters Menu

Port Status

Operation From the Console

Figure 5-3. Example of Port Status

For each port, this screen provi d es you the foll o wi n g info rmatio n :

■ Port -- the port number (note that even if a transceiver module is not

install ed in the tr a nsceive r slot in the fr ont of the switch-- p o rt B , a port B entry is displayed in the list)

■ ID -- the port ID number to use for SNMP MIB access

■ Type -- the network technology type of the port

■ Media -- the type of network media connected to the port

■ Enabled -- whether the port is enabled (Yes or No)

■ Status -- the operational status of the port (Up -- operating correctly, or

Down -- not operating correctly)

■ Mode -- the port’s operating mode

Use the Help action item on this screen to see a list of possible values for each of these items, and definitions of those values.

5-4

Monitoring Switch Operation From t he Console

Status and Co unters Menu

Port Counters

Figure 5-4. Example of Port Counters

This screen en ables you to determine the traffic patterns for each port. Port Counter features include:

■ Dynamic display of counters summarizing the traffic on each port since

the last reboot or reset

■ Option to reset the counters to zero (for the current console session). This

is useful for troubleshooting. Refer to the Note, below.

■ An option to display the link status, and further port activity details for a

specific port ( Show details ). When you se lect the Show details action, you are prompted to select the switch port. A sample detailed port counters screen is shown in figure 5-5.

Operation From the Console

Monitoring Switch

Note The Reset action on this screen and the Show Details screen resets the

counter display to zero for the current session, but does not affect the cumulative values in the actual hardware counters. ( I n comp liance with the SNMP standard, the values in the hardware counters are not reset to zero unless you reboot or reset the switch.) Thus, using the Reset action resets the displayed counters to zero for the current session only. Exiting from the console session and starting a new session restores the counter displays to the accumulated values in the hardw ar e counter s.

5-5

Monitoring Switch

Monitor ing Switch Operation From the Console

Status and Counters Menu

Port Counters - Show Details

Operation From the Console

Figure 5-5. Example of Port Counters - Show Details

5-6

This screen shows you additional counters for the selected port. For definitions of these counters, use the Help action.

In addition to the counters, this screen displays the status of the network connection to this port ( Link Status ), and the MAC address of the Switch Management Module. This MAC address can be used to perform level-2 network connectivity tests (link tests) through this port. See chapter 7,

“Troubleshooting” for more information about link tests.

Monitoring Switch Operation From t he Console

Status and Co unters Menu

Address Tab le

Figure 5-6. Example of the Addres s Table

This screen lets yo u easily determine which switch port is being u sed to access a specific device on the network. The listing includes:

■ The MAC addresses that the switch has learne d from network devices

attached to the switch

■ The port on which each MAC address was learned

Operation From the Console

Monitoring Switch

You can use the S

earch action at th e bottom of the sc reen to locate a spec ific

device (MAC address).

5-7

Monitor ing Switch Operation From the Console

Status and Counters Menu

Port Address Table

This screen lets you easily determine which devices are attached to the selected swi tch port by li stin g all o f the M AC addres ses d etected on that p ort.

Monitoring Switch

Operation From the Console

You can use the S

earch action at the bottom of the screen to determine

whether a specific device (MAC address) is connected to th e selected port.

To use the por t address table:

1. Select Port Address Table from the Status and Counters menu.

Use the Space bar to select the port for which you want to display the add ress table.

5-8

Figure 5-7. Example of How To Access the P ort Address Table

2. When the Select Port prompt appears, press the Space bar to display the number of the port you want to examine, then press [Enter]. (See figure 5-7, above.)

Each port is identified by its port number.

Monitoring Switch Operation From t he Console

Status and Co unters Menu

In this exa mple, several MAC addresse s accessed through port 16 appear in the initial listing. To view any additional addresses th at may be in t he li st ing, use the N

ext page action.

Operation From the Console

Monitoring Switch

Figure 5-8. Example of a Port Address Table for a Specific Port

5-9

Monitoring Switch

Monitor ing Switch Operation From the Console

Status and Counters Menu

Spanning Tree (STP) Information

Use this screen to dete rmine current switc h-level ST P parameter settings a nd statistics.

Operation From the Console

5-10

Figure 5-9. Example of Spanni ng Tree Information

Monitoring Switch Operation From t he Console

Status and Co unters Menu

You can use the Show ports action at the bottom of the screen to display port-level information and parameter settings for each port in the switch (including port type, source MAC address, cost, priority, operating state, and designated bridge).

Operation From the Console

Monitoring Switch

Figure 5-10. Example of STP Port Information

Caution Because incorrect STP settings can adversely affect network performance,

you should avoid making changes without having a strong understanding of how STP operates. For more on STP, refer to appendix D, “Spanning Tree

Operation” an d read the IEEE 802.1d standards document.

5-11

Monitor ing Switch Operation From the Console

Event Log

The Event Log records operating events as single-line entries listed in chronological order. Each entry is composed of five field s:

Monitoring Switch

Operation From the Console

Severity Date Time System Module Event Message

I 08/05/96 10:52:32 ports: port 1 enabled

Severity

Date Time System Module

generated the log entry.

Event Message

is one of the following codes:

I (information) indicates routine events. W (warning) indicates that a service has behaved unexpectedly. C (critical) indicates that a severe switch error has occurred. D ( d eb u g) reserved for HP internal diagnostic information.

is the d a te in mm/dd/yy format that the entry was placed in the log.

is the time in hh:mm:ss format that the entry was placed in the log.

is the internal module (such as “ports” for port manager) that

is a brief description of the operating event.

5-12

Monitoring Switch Operation From t he Console

Event Log

Entering and Navigating in the Event Log Display. To enter the event log, select Event Log from the Main Menu.

log status line

range of events in the log

range of log events displayed

Figure 5-11. Example of an Event Log Display

When you first displa y the event log, the fir st event of the most r ecent reb oot

is positioned at the top of the display. To display other portions of the log— either preceding or following the currently visibl e portio n —use either the actions listed at the bottom of the disp lay (Next page, Prev page, or End), or the arrow keys as described in the following table:

Operation From the Console

Monitoring Switch

Table 5-2. Event Log Control Keys

Key Action

[N] Advance the display by one page (next page). [P] Roll back the display b y one page (previous page).

[v] Advance display by on e event (down one line). [^] Roll back display by one event (up one line).

[E] Advance to the end of the log. [H] Display Help for the event log.

5-13

Monitoring Switch

Monitor ing Switch Operation From the Console

Event Log

The event log holds up to 100 lines in chronolo gical order, from the oldest to the newest. Each line consists of one complete event message. Once the log has received 100 entries, it discards the current oldest line each time a new line is received. The event log window contains 20 lines and can be positioned to any location in the log.

The log status line at the bottom of the displ ay identifies where in the sequence of event messages the displ ay is currently positioned .

The event log will be erased if any o f t he fol lowing occurs:

Operation From the Console

■ The switch is reset by using th e Reset butt on on the Switch Management

■ Pow e r to the switch is in terru p t e d , o r the power is cy c led.

■ A new operating system is downloaded to the switch.

(The event log is not erased by usin g the Reboot Switch command in the console Main Menu.)

Module.

5-14

Using SNMP To Monito r and Manage the Switch

Overview

You can ma nage the Switc h 208/224 that has a Management Module in stalled from a network management station. Includ ed wi th your Switch 208/224 Management Module is a CD-ROM containing a copy of HP AdvanceStack Assistant, an easy to install and use network management application that runs on your Windows NT- or Windows 95-based PC. It can be used as an application under the HP OpenView network management e nvironment, or i t can be run as a stand-alone application running directly under Windows.

HP AdvanceStack Assi stant pro vides comp lete contro l of your Swi tch 208 or 224 through its graphical interface. In addition, it makes use of the HP Embedded Advanced Sampling Environment (HP EASE) and RMON agent software that is on the Switch Management Module to provide powerful but easy to use traffic monitoring and network activity analysis tools.

This chapter provid e s an overvie w of SNMP managem ent for the Sw itch 20 8/ 224 and provides an overview of the configuration process for supporting SNMP management of the switch. For configur atio n proced u r es for specific

features, see chapter 4, “Con f igu r in g th e S wi t ch From the Conso le” .

Using SNMP To Monito r and

Manage the Switch

6-1

Manage the Switch

Using SNMP To Monito r and

Using SNMP To Monitor and Manage the Switch

SNMP Management Features

SNMP Man agement Feature s

SNMP management features provided b y the Switch 208/224 Management Module include:

■ Security via configur ation of SNMP communities

■ Event reporting via SNMP traps and RMON

■ Managing the switch with a network management tool such as HP

AdvanceStack Ass istant

■ Monitoring data normally associated with the SNMP v2 agent (“Get”

operations). Supported Standard MIBs include:

• Bridge MIB (RFC 1493)

• Ethernet MAU MIB (RF C 1515)

• Interfaces Evolution MIB (RFC 1573)

• Novell Standard IPX MIB (ipx.mib)

• RMON MIB (RFC 1757)—etherstats, events, alarms, and hist o ry

• SNMP MIB-II (RFC 1213)

• Entity MIB (RFC 2037)

6-2

HP Proprietary MIBs include:

• Statistics for message and packet buffers, tcp, teln et, and timep

(netswtst.mib)

• Port counters, forwarding table, and CPU statistics (stat.mib)

• tftp download (dow nld.mib )

• Integrated Communications Facility Authentication Manager and

SNMP communities (icf.mib)

• HP AdvanceStack Switch 208/224 configuration (config.mib)

• HP Embedded A dvan ced Sampling Environm en t (ease.mib) The Switch Management Module SNMP agent also uses certain variables

that are included in a Hewlett-Packard proprietar y MIB file you can add to the SNMP database in your network management tool. You can copy the MIB file from the HP AdvanceStack Products CD, shipped with the Switch Management Module, or from following World Wide Web site:

http://www.hp.com/go/network_city

For more information, refer t o the perf o rated card at the front of this manual.

Using SNMP To Monitor and Manage the Switch

SNMP Configu ration Process

SNMP Configuration Process

If you are us ing I P, you mus t eith er conf igure the s witch with t he ap propria te IP address or, i f yo u ar e u sing Bootp to configure the switch, ensu re th at th e Bootp process provides the IP address. (The IPX address is automatically configured.)

The general steps to configu ri n g for SNMP access to the preceding features are:

1. From the Main Menu, select Configuration.

2. Configure an network address for the switch, including any necessary gateways:

a. Use the IPX address. On IPX networks, the switch auto matically

acquires an IPX address based on the network number and the Switch Management Module MAC address. (Refer to page 4-6 for more information.)

b. Use Bootp, which is enabled by default, to acquire an IP address. Make

sure the Bootp server is configured to support this switch. (Refer to

“Using Bootp” on page 4-9 f or more in formation.)

c. Manually configure an IP address. (Refer to page 4-8 for more infor-

mation.)

Using SNMP To Monito r and

Manage the Switch

3.Configure the appropriate SNMP communities. (The “public” community exists by default and is used by HP’s network management applicati ons.) (For more on configuring SNMP communities, refer to page 4-12.)

4. Configure the appropriate trap receivers. (For more on configuring trap receivers, r efer to page 4-14.)

Note SNMP community and t rap receive r configur ations are ac tivated whe n saved.

Rebooting the switch is not necessary u nless you have also configu red other parameters that require rebooting in order to be acti vated.

Any IP or IPX service configuration changes are not activated when saved. For these changes, the switch must be rebooted for the changes to take effect.

For more on when it is necessary to reboot, refer to “Rebooting the Switch” in chapter 3, “The Switch Console”.

6-3

Manage the Switch

Using SNMP To Monito r and

Using SNMP To Monitor and Manage the Switch

Advanced Management: RMON and EASE Support

Advanc ed Managem ent: RMON and EASE Support

The Management Module supports RMON (Remote Monitoring) and EASE on all network segments connected to the switch. This allows for troubleshooting and optimizing of your network.

RMON

The following RMON groups are supported:

■ Ethernet Stati stics (except th e numbers of packets of differ ent frame

sizes)

■ Alarm

■ History (of the supported Ethernet statistics)

■ Event

You can access the Ethernet statistics, Alarm, and Event groups from the HP AdvanceStack Assistant netw ork management software included with your Switch Management Module.

6-4

EASE

EASE (Embedded Advanced Sampling Environment) is a network monitoring and troubleshooting tool that analyzes traffic from a network-wide perspective. EASE notifies you about network problems and identifies the end node at fault. That information can be used to set up RMON to study the problem more closely, if desired. Because it is based on statistical sampling instead of RMON’s all-in clusive collection schem a, EASE lessens the load on devi ces and network bandwidth. See the Traffic Monitor portion of the HP AdvanceStack Assistant CD-ROM (supplied with your Management Module) for more information on using EASE.

Troubleshooting

This chapter describes how to troubleshoot your Switch Management Module. This chapter covers these topics:

■ checking the Switch Management Module LEDs

■ using the problem/solution table

■ checking for IP configuration errors

■ using diagnostic tes t s

■ resetting the switch

■ clearing a password for the switch co n sole

■ HP Customer Support Services

7-1

Troubleshooting

Checking the Module LEDs

The followin g table lists Switch Managemen t Module LED behavio r showing error conditions.

Table 7-1. Switch Management Module LED Behavior

LED Status Description

Self Test ON The module is being self tested as a result of being powered on or because of a reset. If it

stays ON fo r a pro lon ged per iod of t i me (mor e t han 30 se cond s) , the m od ule has exp eri enced a hardware failure. See the instructions for the ON condition under the Fault LED below.

Flashing This sh ould onl y occur if th e Faul t LED i s also f lash ing, and indicat es th at th e modul e has f ailed

its fi rmware self test. See t he inst ructi ons for the Flashin g cond ition under the F ault LED be low. Try rese tting the switch and module by pressing the Reset but ton on the module. If the fault condition persists, attach a PC to the sw itch and run the console interface; the log

file should indicate the error condition. See Note below.

Fault ON The module is be ing self tested as a result of being powered on or because of a reset. If it

stays ON fo r a pro lon ged per iod of t i me (mor e t han 30 se cond s) , the m od ule has exp eri enced a hardware failure.

Try rese tting the switch and module by pressing the Reset but ton on the module. If the failure persists , it may be due to incor rect module install ation. Remove power from the

switch an d try reinstalling the module. This condition may also be caused by an incorrectly install ed SIMM on t he module . Whil e the modu le is rem oved, ve rify that t he SIMM is correctl y installed.

Apply power to the switch again. If the fault condition persists, the module may have to be replaced.

If none of t hes e proc edur es resol ve s the cond it ion, the m odul e ma y b e f aulty an d wou ld need to be replaced. Contact your HP-authorized LAN dealer for assistance.

Flashi ng Indica tes that the module has fa iled its firmware self test.

Try rese tting the switch and module by pressing the Reset but ton on the module. If the fault condition persists, attach a PC to the sw itch and run the console interface; the log

file should indicate the error condition. See Note below.

Note: If the Self Test and Faul t LEDs are flashing (not constantly on), you should be able to use the switch console to read

the switch event log to identify the problem. If necessary to resolve the problem, contact your HP-authorized LAN dealer, or use the elect ronic support servic es from HP to get assistance. See the perforated card a t the front of t h is manual for more information.

7-2

Troubleshooting

Problem/Solution Table

Use the following table to diagnose the problem with your Management Module:

Table 7-2. Typical Switc h Problems and Their Solut ions

Problem Solution

How do I reset t he sw itch? Either:

• Push the res e t button on the Switch Management Module.

• Select Reboot Switch from the switch console.

• Select the Reset command from HP Advance Stack Assistant.

• Power cycle the switch.

Note that onl y the power cy cle option ca uses the swit ch and Switch Management Module to run their di agnostic self tests.

None of the Management Module LEDs ar e on.

I can’t remember the console passw ord to configure a nd diagnose t he switch.

A user can’t send data to another user.

I think the Sw itch Management Module isn’t working anym ore becau se the Fault LED stays on or flashes. W hat do I do?

The Module may not be installed correctly. Make sure the Module is fu lly insert ed and screws are tightened.

While the switch is on, press the Clear button on the Management Module for at least 1 second. Then release. Then specify a new password to keep a ccess to the switch restricted. (The steps are descr ibed in chapter 3 under “Using Passw ord Security ”.)

There may be a cablin g problem with the connection for one or both of the users. Follow the procedures under “Diagnostic Tests” to identify the problem.

See the inform ation in table 7-1 for what to do under these conditions.

If the answer to your question is not in this table, read the IP configuration and diagnostic test information on the next pages.

Troubleshooting

7-3

Troubleshooting

IP Configuration Errors

If you are using IP communications, make sure your IP configuration param-

eters are set properly. Use the switch console’s IP Configuration function as described in chapter 4. Incorrect IP confi guration on the Switch Management Module will prevent it from communicating with the network management station, and may cause other network problems.

In particular, make sure you provide the Switch Management Module with a unique IP address, and that you use the correct subnet mask for your network.

Diagnostic Tests

The HP Advanc eS tack Assistant a nd switch console p rovide tests and indicators that can be used to monitor the switch and its network connections.

Troubleshooting

Testing the Switch and Managemen t Mo dule

If you believe that the switch or its Management Module are not operating correctly, remove and reinser t the power cord for that switch. This procedure causes the switch and module to complete their power-on self test.

Normally, when the self test completes, the module’s Se lf Tes t LE D and all Fault LEDs on the switch and module will go OFF. If any error conditions exist in the switch or the module, the LEDs should display the condition. See the HP AdvanceStack Switch 208/224 Installation and Reference Guide to interpret the LED display for the switch. For the module, see the table under “Checking the Module LEDs” at the beginning of this chapter.

7-4

Troubleshooting

Diagnostic Tests

Testing the Switch’s Ports and the Links

To test the switch’s ports and the attached network links, follow these procedures:

1. Check for link beat detection o n the port. When the switch first

detects the link beat sign al (also called “lin k test pulse signal”) coming from an active device, the port LED comes ON for approximately 3 seconds. This happens whenever the switch is powered on and an active device that is sending li nk beat is connected to the port, or the connected device is powered on, or the switch is powered on and an active network cable is plugged in to the port.

In its default configuration, the switch indicates the link status for 3 seconds on its 10 Mbit/s port LEDs and then converts them to displaying network activity on the port. (The 100 Mbit/s port always operate this way.) You can configure the 10 Mbit/s port LEDs to continuously indicate the link status and not convert to activity indicators. This configuration option is on the System configuration screen under the Configuration menu on the switch console interface. See “System Configuration” in chapter 4, “Configuring the Switch From the Console”.

2. Run network communication tests. Use these tests if you have link beat detected fo r a port. Choose one of the following ways to run a test of the network communication between the switch and an addressable device connected at the remote end of each of the cables you wish to test:

• Select Link Test from HP AdvanceStack Assistant’s Network Test

function or the switch console’s Advanced Commands option. This causes the switch to send IEEE 802.2 Test comman d packets to a specified network device.

Troubleshooting

The device must be a ble to send an IEEE 802. 2 Test r espons e packet upon receipt of a Test command packet. Usually this would be another network device such as a hub, switch, or router. You specify the remote device by its 12- di git hexadecimal MAC address.

• Select Ping Test. This is a network layer test that you can r un on TCP/

IP networks. The switch sends ICMP Echo Request pack ets to a specified network device. This works with devices that have an IP address and are able to respond to an ICMP Echo Request packet. Most end nodes using IP will respond to this packet. You specify the remote device by its IP address.

7-5

Troubleshooting

Diagnos tic Tests

• Select IPXping Test. This is a network layer test that you can run on

Novell NetWare IPX networks. T h e switch sends IPX test packets to a specified net work devic e. This works with devices that have an IPX address and are able to respond to an IPX test packet. Most end nodes using IPX will respond to this packet. You specify the remote device by its IPX address.

If the test passes, the switch's port, the network link, and the remote device are al l wo rking p roperl y. If yo u a re tes ting t he tran sceiver mod ule port, this also tests the transceiver that is installed in th e switch .

If the test fails, you can test the switch using the “Testing the Switch Only” procedures on the previous page. You should also verify that the remote device is powered on and functioning properly, and that the cable is good.

If the switch passes its tests, but the network test (link test, Ping test, or IPXping tes t) fails, the p roblem is i n the cablin g, the remote devi ce, or possibl y the output circuitry of the switch's port.

A frequent problem is that the wrong type of network cable is used. To connect the switch ports to end nodes, use a “straight-through” twisted-pair cable; to connect to hubs or other switches, use a “crossover” twisted-pair cable. Refer to appendix A, “Cables and Connectors” in the HP AdvanceStack Switch 208/ 224 Installation and Reference Guide for more information on the pin-outs and use of these cable s.

Troubleshooting

See the HP AdvanceStack Assist an t onli n e help and the switch co n sole advanced commands help for more information on how to execute the network connectivity tests.

7-6

Troubleshooting

Resetting the Switch

Resetting requires physical access to the Switch Management Module. There are two levels of reset:

■ Hardware reset: Momentarily interrupts switch operation, performs a

complete hardware self test, clears the switch event log, and reboots the switch.

To execute this test, press the Reset button on the Switch Management Module with a pointed object (the button is recessed to prevent accidental actuation). Initially, all the module and switch LEDs will be illuminated. The test completes when the module Self Test and Fault LEDs turn off.

■ Configuration reset: This is a drastic action that interrupts switch

operation, clears any passwords, clears the event log, performs a complete self test, and reboots the switch in its factory default configuration. You should consider performing a configuration reset only if you want all configurable parameters reset to the factory default values.

To execute this test, perform these steps:

1. Using pointed objects simultaneously press both the Reset and Clear buttons on the Switch Management Module.

2. Continue to press the Clear button while releasing the Reset button.

3. When the Self Test LED begins to flash, release the Clear button.

Use the Reset and Clear buttons described in the reset procedures.

Troubleshooting

7-7

Troubleshooting

Clearing Passwords on the Switch Console

You can use the Clear button to clear a forgotten console password that was previously configured on the switch.

To clear the password, follow these steps:

1. Verify the switch has powered-up, and passed self test.

1. Press the Clear button on the Management Module for at least one second.

Press the Clear button for at least one second.

Troubleshooting

Note After the password has been cleared, access to the switch from the console

will no longer be password protected. A new password can be assigned from the switch console.

7-8

HP Customer Support Services

Troubleshooting

HP Customer Support Services

If you are still having trouble with your switch or Switch Management Module, Hewlett-Packard offers support 24 hours a day, seven days a week through the use of automated electronic services, including:

■ the World Wide Web

■ HP BBS

■ HP FTP Library Service on the Internet

■ CompuServ

■ HP Network Phone-In Support (NPS)

■ HP FIRST FAX Retrieval Service

See the perforated card at the beginning of this manual for information on how to get technical support.

Your HP-authorized network reseller can also provide you with assistance, both with services that they offer and with services offered by HP.

7-9

Troubleshooting

Specifications

Physical (includes bulkhead and connector):

Environmental:

Width 16.7 cm (6.6 in) Depth 18.3 cm (7.2 in) Height 4.5 cm (1.8 in) Weight 2.3 kg (.50 lb)

Operating Non-Operating

Temperat ure +0

Relat i v e hu midi ty (non-condensing)

Maximum altitude 4.6 km (15,000 ft) 4.6 km (15, 000 ft)

°C to +55°C

(32

°F to 131°F)

15% to 95%at 40

°C to 70°C

-40 (-40

°F to 158°F)

°C (104°F) 15% to 90%

at 65

°C (149°F)

Connectors:

The RS-232-C console port conforms to V.22 bis.

Electromagnetic:

Emissions:

FCC part 15 Class A CISPR-22 Clas s A/EN 55022 Class A VCCI Level 1

Immunity:

(See the Declaration of Conformity at the end of the Safety and Regulatory

Statements in the HP AdvanceStack Switch 208/224 Installation and Reference Guide.)

Specifications

A-1

Specifications

Safety:

Complies with IEC 950: (1991)+A1,A2/.EN60950 I(1992)+A1,A2

Acoustic Noise: Not applicable Management Protocols

RFC 1157 SNMP RFC 1901-1908 SNMPv2C RFC 1420 SNMP over IPX

Supported MIBS

RFC 1493 Bridge MIB IETF Entity MIB RFC 1213 MIB-II RFC 1515 Ethernet MAU MIB RFC 1573 Interface Evolution MIB RFC 1650 Ethernet Interface MIB RFC 1757 RMON M IB HP Switch

Config MIB HP EASE MIB version 2 HP MIB

Extensions

Available on request. Contact your HP-authorized dealer or local HP sales office

Specifications

Communication Protocols

RFC 786 UDP RFC 791 IP RFC 792 ICMP RFC 793 TCP RFC 826 ARP RFC 854 Telnet RFC 951 Bootp RFC 1350 TFTP Novell IPX

A-2

Specifications

Regulatory Statem ents

FCC Statement (For U.S.A. Only) Federal Communications Commission Radio Frequency Interf erence Statement

Note: This equipment has been tested a nd found to comply with the l imits for a Class A digit al device, pursuant to Part 15 of the FCC Rules . These li mits are designed to provide reason able protection against h armful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.

VCCI Class 1 (For Japan Only)

European Community

This equipment complies with ISO/IEC Guide 22 and EN55022 Class A.

Note This is a class A produc t. In a domesti c enviro nment, thi s product may cause

radio interferenc e, in which case the user may be required to take adequate measures.

Complies with Canadian EMC Class A requirement s.

A-3

Specifications

Modem Configuration

Before installing the modems (one attached to the Switch Management

Module’s console port and one attached at the user end to the terminal/PC), configure them by this procedure:

1. Connect them, one at a time, to the PC or terminal and issue the appropriate AT command, as described in the tables in this appendix.

Note that, in each case, the configuration string for the modem attached to the switch is different than for the one attached to the PC or terminal.

2. Install the modems in the appropriate locations. Make sure the correct modem is installed in each location, according to how it was configured.

The modems listed in this appendix have been tested and found to work properly with the Switch Management Module using the initialization strings shown.

Modem Configuration

Hayes Smartmodem Optima 28.8 (V.34)

At the switch end:

At the user end: Issue the following AT command:

Issue th e following AT command:

AT&FQ2&C2&D3S0=1&W 0

AT&FW1&C1&W

Hayes Acura 288 V.34 + FAX

At the switch end:

At the user end: Issue the following AT command:

Issue th e following AT command:

AT&FQ2&C2&D3S0=1&W 0

AT&FW1&C1&W

B-1

Modem Configuration

US Robotics Courier V.FC/V.34

At the switch end:

At the user end: Issue the following AT command:

Issue th e following AT command:

AT&F&C0S0=1&W0

AT&F&W

Modem Configuration

Megahertz XJ2288 PCMCIA card modem

At the user end: Issue the following AT command:

AT&F\N0&W

Practical Peripherals PM288MT II V.34

At the switch end:

At the user end: Issue the following AT command:

Issue the following AT command:

AT&F0&C2S0=1Q 2&D3&W0

AT&F0&W0

B-2

File Transfers

Overview

You can download new Switch Management Module software (operating

system—OS) and upload or download Switch 208/224 configuration files. These features a re useful for acquirin g periodic swit ch software upgrades a nd for storing or retrieving a switch configuration.

Downloading an Operating System

There are several methods yo u can use to download new operating system code to the Switch Management Module. You can use any of the following methods, whichever is more convenient:

■ the TFTP feature-- Download OS command on the console Main Menu

■ HP’s SNMP Download Manager

■ a switch-to-switch file transfer

■ the switch console’s Zmodem capab ilities in the console Advanced

File Transfers

Commands

The rest of this section describes these methods.

Note Downloading a ne w OS does not change the c urrent switch conf iguration. The

switch configuration is contained in a separate file that can also be transferred, for example to be saved or used on anoth er Switch 208/224. See “Transfer ring Switch Configurations” later in this appendix.

C-1

File Transfers

Downloading an Operating System

Using TFTP To Download the OS File

Before you use this procedure, make sure of the following:

■ The switch is properly connected to the network and is configured for

either IP or IPX service, whichever yo u nee d to communica te with the TFTP server used for the download.

■ The OS software to download must be stored in a file on a TFTP server in

your network. (The OS file is typical ly available from HP’s electronic services—refer to the perf orated card at the front of this manual.)

■ You know the name of the OS file stored in the TFTP server. (For example,

j317801.cmp .)

■ You have determined the IP or IPX address of the TFTP server in which

the OS file has been stored.

Note If your TFT P server is a Uni x workstation, ens ure that the ca se (upper or

lower) that you specify for the filename in the switch console Download OS screen is the same ca se a s t h e charact er s i n t he O S f ilenames on the TFTP server.

1. In the switch consol e Mai n Menu, selec t Downlo ad OS. Yo u will then see this screen:

C-2

Figure C-1. The Download OS Screen (Default Values)

Downloading an Operating System

File Transfers

2. Press [E] (for Edit).

3. With the Protocol field highlig hted, use the Sp ace bar to sel ect eit her IP or IPX, depending on the protocol in use in your network.

4. Highlight the TFTP Server field and type in the IP or IPX address of the TFTP server in which the OS file has been stored.

5. Highlight the Remote File Name field, then type the name of the OS file.

6. Press [Enter], then [X] (for eX

ecute) to begin the OS download. The

following screen then appea rs:

example of a TFTP server address

example of a remote file name on a PC workstation

Figure C-2. Example of the Down load OS Screen During a Download

7. A “progress” bar indicates the progress of the download. When the entire operating system has been received, all activity on the switch halts an d the following message appear s:

File Transfers

WRITING SYSTEM SOFTWARE TO FLASH, BACK SOON

After the system flash memory has been updated with the new operating system, the Switch Management Module reboots itself and begi ns running with the new operating system.

8. To confirm that the operating system downloaded correctly: a. Select Status and Counters from the Main Menu b. Select Switch Information from the Status and Counters menu. c. Check the OS Version line. It should show the new version number.

C-3

File Transfers

Downloading an Operating System

Using the SNMP-Base d HP Download Manager

Included with your Switch Management Modul e is the HP AdvanceStack Assistant CD ROM. Inc lu d ed in the software on that CD is a utility called HP Download Manager. You can use t hat utility to download th e OS to the Swi tch Management Module.

To perform this procedure, do the following:

■ At a minimum, use an IBM-compatible PC with a 386 MHz or better

processor, and 8 Mbyte of RAM.

■ Make sure the PC is connected to the same network as the switch.

■ Obtain software and instructions from HP’s BBS or World Wide Web site.

(Refer to the “Customer Support Services” section in chapter 7, “Troubleshooting”. The HP Download Manager also has detailed online help that can guide you through the procedures.

Using the Switch -to -Switch Download

If you have two or more Switch 208/224s with Switch Management Modules installed and operating in the same network, you can download the OS software from one Switch Management Module to another by using the Download OS feature in the switch console interface.

C-4

To do so:

1. On the console connected to the switch that will be receiving the OS, select Download OS from the Main Menu.

2. Enter the IP or IPX address of the remote switch containing the OS you want to download.

3. Enter “OS” for the Remote File Name.

4. Execute the download.

Downloading an Operating System

File Transfers

Using the Zmode m to Download the OS File

This procedure assum es that th e following items have been done:

■ The PC is serially con nected to the Switch Manageme nt Modul e Console

RS-232 port.

■ The PC can support the Zmodem file transfer protocol. This protocol is

supported by the terminal emulator on Windows NT 4.0 and Windows 95, and on communication programs such as Procomm and Reflections.

■ The OS software to download has b een stored in a fil e on the PC. (The OS

file is typically available from HP’s electronic services—refer t o the perforated card at the front of this manual.)

1. From the switch console Main Menu, select Advanced Commands

2. At the command prompt, enter update (This command may not be listed in the Advanced Commands help listing.)

3. You will see a message asking if you want to overwrite the current OS. Enter [Y], for yes, to proceed. You should then see the message

Jumping to console code ...

4. At the Switch console> prompt, enter do (for “download”).

5. You will then see a message about invoking the console download utility and a prompt asking if you wish to continue. Enter [Y], for yes, to proceed.

6. You will then see the following message:

Please start ZMODEM download from terminal emulator, and ignore any characters that may appear on the next line.

7. With whatever terminal emulation program you are using on your PC, select the Zmodem file transfer method and send the OS file (for example, j317801.cmp ) as a binary file to the Switch Management Module.

Your terminal emulation program should provide information on the success of the transfer and an indication of when it is completed.

8. When the OS file transfer completes, the switch will automatically reboot and activate the new OS.

File Transfers

C-5

File Transfers

Troubleshooting TFTP Downloads

If a TFTP download fails, the Download OS scree n indicates the failure.

C-6

message Indicat ing TF TP download fa ilure

Figure C-3. Example of Message for Download Failure

To find more information on the cause of a download failure, examine the

messages in the switch’s Event Log. (See “Event Log” on page 5-11.) Some of the causes of download failures include:

■ Wrong protocol specified for the Protocol parameter

■ Incorrect or unreachable address specified for the TFTP Server parame-

ter. This may include network problems. Try pinging the server to test the connectivit y.

■ Incorrect name specified for the Remote File Name parameter, or the

specified file cannot be found on the TFTP server. This can also occur if the TFTP server is a Unix machine and the case (upper or lower) for the filename on the server does not match the case for the filename entered for the Remote File Name parameter in the Down load O S scre en .

Troubleshooting TFTP Downloads

File Transfers

■ One or more of the Switch Management Module’s IP or IPX configuration

parameters are incorr ect. Try pinging the server to test the connectivity.

■ For a Unix TFTP server, the file permissions for the OS file do not allow

the file to be copied.

■ Another console sessio n (through either a direct connection to a terminal

device or through Telnet) wa s alr ead y running when you started the session in which the download wa s at tempted.

Note If an error occurs in which normal switch operation cannot be restored, the

switch automaticall y reboots itself. In this case, an approp ri ate message is displayed in the copyright screen that appears after the switch reboots. You can display the same information by selecting the Advanced Commands option from the Main Menu and executing the History command.

File Transfers

C-7

File Transfers

Transferring Switch Configurati ons

Transferring Switch Configurat ions

You can use the following commands to transfer switch configurations between the switch and a PC or Unix workstation.

Command Function

Get Download a swit ch configu ration fil e from a network ed PC or Unix workstat ion

Put* Upload a switch configur at ion to a fi le in a net work ed PC or Unix works tati on

usin g TFTP.

File Transfers

ZGet Use s a Zmodem- compatible t erminal e mulation program to d ownload a swi tch

configuration fil e from a PC or Unix workstation connected to the switch’s console port (either di rectly or vi a a m odem).

ZPut* Uses a Zmodem-compatible terminal emulation program to upload a switch

configurati on to a file in a PC or Unix workstation connected to the switch’s console port (either di rectly or vi a a m odem).

*Can also be us ed to send the output of certain commands to a file on anot her device.

Using Get and Put To Transfer a Configuration Between the Switch and a Networked PC or Unix Workstation

To use Get or Put, you need the following:

■ The IP or IPX address of th e remote PC or Unix works tation that is ac ting

as a TFTP server

■ The name assigned to the confi guration fi le you w ill use on the remote P C

or Unix workstation

Note The Get operation overwrites the switch’s current configurati o n with the

newly retrieved configuration. The switch then automatically reboots itself.

C-8

HP J3178A User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

HP AdvanceStack Switch 208/224 Management Module

HP Customer Support Services

How to get the latest software/agent firmware

World Wide Web

HP FTP Library Service

CompuServe

HP BBS

HP FIRST Fax Retrieval Service

Additional HP Support Services

Contents

Included Parts

Installation Steps

Removing the Module

Overview

Module Features

Overview

About the Console Inter face. The console in terface enab les you to reco n­figure the switch and to monitor the switch status and performance. It consists of a series of management screens accessed through a menu-driven screen structure that begin s at the Main Menu.

Connecti ng a Console to the Switch

Default Serial Communication Settings

Modem Cable Pin-Out

Starting and Ending a Console Session

How To Start a Console Session:

Main Menu Features

Screen St ructure and Navigation

Using Password Security

To Delete Password Protection:

To Recover from a Lost Manager Pass word:

To Recover from a Lost Operator Password:

Rebooting the Switch

Advanced Commands

How To Use the A dvanced Comm ands:

How To Exit from the command prompt:

Overview

Configurable Features

How To Access the Switch Configuration:

System Configuration

Port Configuration

IPX Service

Interne t (IP) Service

To manually configure the switch for IP:

Using Bootp

To configure the switch for Bootp:

Bootp Operation

The Bootp Process

Bootp Database Record Entries

where:

Notes for the bootptab file:

SNMP Communities

How To Conf igure the Switch for SNMP Communities.

Trap Receivers

Serial Link Configuration

Console Conf igu rat ion

Spanning Tree Configuration

To configure the STP parameters: In most cases, the default STP param­eter settings are adequ ate. In cases where it is n ot, use this proced ure to make configuration ch anges.

Network Monitoring Port

How To Conf igure the Switch for Monitoring: This procedure describes configuring the switch for monitoring when monitoring is disabled. (If monitoring has already been enabled, the screens will appear differently than shown in this procedure.)

Saving Configurations

Overview

Status and Counters Menu

Switch Information

Port Status

Port Counters

Port Counters - Show Details

Address Tab le

Port Address Table

To use the por t address table:

Spanning Tree (STP) Information

Event Log

Overview

SNMP Management Features

SNMP Configu ration Process

Advanced Management: RMON and EASE Support

RMON

EASE

Checking the Module LEDs

Problem/Solution Table

About the Console Inter face. The console in terface enab les you to reco nfigure the switch and to monitor the switch status and performance. It consists of a series of management screens accessed through a menu-driven screen structure that begin s at the Main Menu.

To configure the STP parameters: In most cases, the default STP parameter settings are adequ ate. In cases where it is n ot, use this proced ure to make configuration ch anges.