HP J3178A 85

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.

Troubleshooting

7-9

Contents

Installation and Reference Guide Page HP AdvanceStack Switch 208/224 Management Module Page HP Customer Support Services How to get the latest software/agent firmware j317801 World Wide Web HP FTP Library Service HP FIRST Fax Retrieval Service Additional HP Support Services 1Installing the Management Module 2Management Module Description 3The Switch Console 4Configuring the Switch From the Console 5Monitoring Switch Operation From the Console 6Using SNMP To Monitorand Manage the Switch 7Troubleshooting ASpecifications B Modem Configuration C File Transfers DSpanning Tree Operation Page Installing the Management Module the Management Module Included Parts Installation Steps C a u t i o n Anti-StaticPrecautions: Figure 1-2.Remove the cover plate Figure 1-3.Insert the Switch Management Module Removing the Module Management Module Description Management Module Description Self Test LED Console RS-232 Module Features Full-duplex port operation Address Aging Switch Console Page The Switch Console Connecting a Console to the Switch Default Serial Communication Settings Figure 3-1.Connecting a PC or Terminal to the Console RS-232Port Remote Console Connection Using a Modem and a PC Terminal Emulator or Terminal Figure 3-2.Example of Remote Access through a Modem Connection Modem Cable Pin-Out Starting and Ending a Console Session How To Start a Console Session: Note: Figure 3-3.The Main Menu How To End a Console Session: Main Menu Features Status and Counters: Configuration LOGOUT Advanced Commands Screen Structure and Navigation Figure 3-4.Elements of Screen Structure Table 3-1.How To Navigate in the Console Using Password Security To set Manager and Operator passwords: Figure 3-5.The Set Password Screen To Delete Password Protection: To Recover from a Lost Manager Password: To Recover from a Lost Operator Password: Rebooting the Switch Figure 3-6.The Reboot Switch Option in the Main Menu Figure 3-7.Example of a Configuration Change Requiring a Reboot Advanced Commands How To Use the Advanced Commands: time 9:55 How To Exit from the command prompt: Page Configuring the Switch From the Console Figure 4-1.Example Showing How To Display Help the Switch From Console the Configurable Features How To Access the Switch Configuration: Figure 4-2.The Configuration Menu System Configuration Port Configuration IPX Service (Optional) How To Configure IPX for Management from a Remote IPX Network Internet (IP) Service Using Bootp Bootp Operation The Bootp Process Bootp Database Record Entries where: Notes for the bootptab file: SNMP Communities Figure 4-8.The SNMP Communities Add or Edit Screen Trap Receivers Serial Link Configuration Console Configuration Spanning Tree Configuration Figure 4-12.Example of the STP Configuration Screen Network Monitoring Port Figure 4-14.Example of Selecting a Monitoring Port Saving Configurations Page Monitoring Switch Operation From the Console the Console Status and Counters Menu Figure 5-1.The Status and Counters Menu Switch Information Port Status Port Counters Port Counters - Show Details Address Table Port Address Table Figure 5-8.Example of a Port Address Table for a Specific Port Spanning Tree (STP) Information Figure 5-10.Example of STP Port Information Event Log Severity Date Time System Module Figure 5-11.Example of an Event Log Display Table 5-2.Event Log Control Keys Page Using SNMP To Monitor and Manage the Switch To Monitor and the Switch SNMP Management Features SNMP Configuration Process RMON EASE Troubleshooting Checking the Module LEDs Table 7-1.Switch Management Module LED Behavior Problem/Solution Table Table 7-2.Typical Switch Problems and Their Solutions Testing the Switch and Management Module Testing the Switch’s Ports and the Links IPXping Test Resetting the Switch Hardware reset: Clearing Passwords on the Switch Console N o t e Page Page Specifications Safety: Acoustic Noise: Not applicable Management Protocols Supported MIBS Communication Protocols Regulatory Statements Page Modem Configuration Modem Configuration US Robotics Courier V.FC/V.34 Megahertz XJ2288 PCMCIA card modem Practical Peripherals PM288MT II File Transfers Using TFTP To Download the OS File Figure C-2.Example of the Download OS Screen During a Download Using the SNMP-BasedHP Download Manager Using the Switch-to-SwitchDownload Using the Zmodem to Download the OS File Troubleshooting TFTP Downloads Figure C-3.Example of Message for Download Failure Page Transferring Switch Configurations Using Get and Put To Transfer a Configuration Between the Switch and a Networked PC or Unix Workstation Page Page Spanning Tree Operation Figure D-1.Example of Logical and Redundant Paths Between Two Nodes Spanning Tree Operation Index Index Page Page Page Page Page Page *5966-5228