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Troubleshooting
Specification
Install
Password
Default Users
Indicators
Port Administration Summary
Warranty
Configuring Ports
Problem
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Contents
3Com OfficeConnect Managed PoE Switch
3Com Corporation Campus Drive Marlborough
User Guide
Overview
Managing System Information Provides information for
About this Guide
Documentation
Conventions
Related
Lists conventions that are used throughout this guide
About this Guide
Contents
Viewing Basic Settings
Configuring Ports
Configuring Igmp Snooping
Managing System Files
Managing Device Diagnostics
-O UTS
Troubleshooting
Page
Getting Started
OfficeConnect
Switch
About
Managed Fast
OfficeConnect Managed Fast Ethernet PoE Switch-front panel
LED Status
Indicators
OfficeConnect Managed Fast Ethernet PoE switch provides LED
Describes the meanings of the LEDs
Specifications
Fast Ethernet PoE switch
System
Installing
Setting Up for
Methods of Managing a Switch
Management
Refer to Setting Up Web Interface Management on
Refer to Setting Up Command Line Interface Management on
Configure IP information manually for your switch or view
Switch Setup
Refer to Setting Up Snmp Management V1 or V2 on
Automatically configured IP information
Initial Switch Setup and Management Flow Diagram
Automatic IP Configuration using Dhcp
Manual IP Configuration
Interface CLI
Prerequisites
Connecting the Workstation to the Switch
Manually set the IP Address using the Console Port
Console#configure
Console#show ip interface
Setting Up Web
Interface
Choosing a Browser
Interface Management
Setting Up
Command Line
Over the Network
Network Using Telnet
Where xxx.xxx.xxx.xxx is the IP address of the switch
Upgrading Software using
Default Users
Enter y and press Return. The system reboots the switch
Following prompt displays
Using the 3COM WEB Interface
Web Interface
Accessing the 3Com Web Interface
Starting the 3Com
Multi-Session Web Connections
Enter Network Password
Web Interface
Understanding 3Com Web Interface
3Com Web Interface Home
Following table lists the user interface components
Interface Components View Description
To access the Device Representation
Click Device Summary Device View
Management Buttons
Using Screen
To view configuration information
Table Options
Click Administration IP Setup. The IP Setup Page opens
IP Setup
Modify the fields Click . The access fields are modified
System Access Modify
To save the device configuration
Configuration
Configuration to be saved to the flash memory
Click . The configuration is saved
Resetting the Device
Click Administration Reset. The Reset Page opens
Click . a confirmation message is displayed
Reboot in 15 seconds
Password is displayed
Click
To restore the device
Defaults
Restores device factory defaults
Restoring Factory
To log off the device
Logging Off
Device
Following message appears
Viewing Basic Settings
To view the Device Summary Settings
Device Summary Page contains the following fields
Polling Interval Page contains the following fields
Polling Interval
Click Device Summary Color Key. The Color Key Page opens
Color Key
Managing Device Security
Managing Device Security
System Access Summary
To define System Access
Interface
To modify System Access
Click . The Users are deleted, and the device is updated
To remove users
To configure the Radius client
Managing Device Security
Authentication
Defining Port-Based
802.1X
Click Security 802.1X Summary. The 802.1X Summary Page opens
Defining Port-Based Authentication
802.1X System Setting
Port Settings
Click Security 802.1X Setup. The 802.1X Setup Page opens
Defining Port-Based Authentication
Defining
Local Database
Forwarded on to the originally requested web
Authentication
To configure Local Database Settings
Local Database Setup Page contains the following fields
Local Database Port Detail
Local Database Port Setup Page contains the following fields
To display the users stored in the Local Database
User Name The name of users stored in the local database
To create user entries in the Local Database
Create a User
Summary
Local Database User Modify
To remove a user entry from the Local Database
Local Database User Remove
Encrypting
Connection to
To configure Https settings
Client and server establish a secure encrypted connection
Disabled Https is disabled on the device
Https//deviceportnumber
Https Download Certificate
Managing Device Security
Switch supports both SSH Version 1.5 and 2.0 clients
To view the DSA and RSA keys
Click Security SSH Host Key. The SSH Host Key Page opens
SSH Host Key Page contains the following fields
Must use this web page to create a public host key
SSH Key Generate
Control Lists
Defining Access
Access Control Lists ACLs allow network managers to define
Filters that determine traffic classifications
MAC Based ACL Summary
To configure MAC-based ACLs
Click Device ACL MAC Based ACL Setup. The MAC Based ACL
Add Rules to ACL
Select Create ACL
To define a new MAC-based ACL rule
Click Device ACL MAC Based ACL Remove. The MAC Based ACL
Check Remove ACL
IP Based ACL Summary
Defining Access Control Lists
To configure IP-based ACLs
Click Device ACL IP Based ACL Setup. The IP Based ACL Setup
Opens
Add Rules to ACL
Managing Device Security
To create a new IP-based ACL
Click Device ACL IP Based ACL Remove. The IP Based ACL
Updated
ACL Binding Summary
ACL Binding Setup
To define ACL Binding
To remove ACL Binding
ACL Binding Remove
Managing Device Security
Storm Control
Settings
To display the storm control settings
For all ports
Control
Configuring
To configure Broadcast Storm Control
Define the relevant fields
Using Broadcast Storm Control
Managing Device Security
Information
Device View
Viewing System Description
Configuring the System Name
Settings
System settings. The section includes the following topics
Configuring System Time
To configure the System Name
Device
To configure the System Time
System Time Setup
Defining System Settings
Saving the Device
Saved to the flash memory
To reset the device configuration
Managing System Information
Configuring Ports
Port Administration Summary
115
To configure Port Settings
Port Administration Setup
117
Click Port Administration Detail. The Port Detail Page opens
119
Configuring Ports
Aggregating Ports
Link Aggregation Summary
To create Link Aggregation
Blue Displays a member of the aggregation being created
Summary
Deselected ports
To modify Link Aggregation
Link Aggregation Modify Page includes the following fields
Blue Displays a member of the modified aggregation
Summary
To remove Link Aggregation
Link Aggregation Remove Page includes the following fields
Lacp Summary
Lacp Modify
Aggregating Ports
Configuring Vlans
Click Device Vlan Vlan Detail. The Vlan Detail Page opens
Vlan
Vlan Port Detail
Create VLANs
Click Device Vlan Setup. The Vlan Setup Page opens
Vlan Setup Page contains the following fields
To create VLANs
To rename VLANs
Click Device Vlan Rename. The Vlan Rename Page opens
To edit Vlan Settings
Click Device Vlan Modify VLAN. The Modify Vlan Page opens
137
To modify Port Vlan Settings
Click Device Vlan Modify Port. The Modify Port Page opens
To delete VLANs
Click Device Vlan Remove. The Vlan Remove Page opens
Configuring Vlans
Address Information
Addressing
IP Setup Page contains the following fields
Defining IP
To define an IP interface
Configuring ARP Settings
ARP Settings Summary
To configure ARP entries
ARP Settings Setup
ARP Settings Remove
To remove ARP entries
Configuring ARP Settings
Configuring IP and MAC Address Information
Table Settings
To view address table settings
Port Summary
Configuring Igmp Snooping
To configure Igmp Snooping
Click Device Igmp Snooping Setup. The Igmp Snooping
Vlan Settings
Configuring Igmp Snooping
Configuring Spanning Tree
Spanning Tree Summary
157
To configure Spanning Tree Setup
Spanning Tree
159
Spanning Tree Port Setup
To modify Spanning Tree
Recommended STA Path Cost Range
Configuring Spanning Tree
Configuring Snmp
Snmp version Snmp version 2c
Click Administration Snmp Setup. The Snmp Setup Page opens
To set the operational status for Snmp
Click Administration Snmp Snmp Add. The Snmp Add Page opens
To define Snmp communities
Community String
Snmp Trap
Snmp Add Page contains the following fields
Communities
Remove Community String
Removing Snmp
To remove Snmp communities or traps
Remove Snmp Trap
Service
Click Device QoS CoS Summary. The CoS Summary Page opens
CoS Summary
To configure CoS Settings
Click Device QoS CoS Setup. The CoS Setup Page opens
To configure the queue mode
Click Device QoS Queue. The Queue Setup Page opens
CoS to Queue Summary
To configure CoS values to queues
With 0 representing the lowest queue and 3 as the highest
To view the Dscp to CoS mapping
Dscp to CoS Summary
Dscp to CoS Setup
To map Dscp to CoS values
Click Device QoS Trust Setup. The Trust Setup Page opens
Trust Setup Page contains the following fields
Ingress Rate Limit
Bandwidth Summary
Egress Shaping Rates
To configure Bandwidth Settings
Bandwidth Setup Page contains the following fields
Be applied to the egress traffic on a specified interface
Egress Shaping Rate
Configuring Quality of Service
Voice Vlan Summary
To configure Voice Vlan Settings
Voice Vlan Setup
Voice Vlan is defined, and the device is
To configure Voice Vlan port settings
Voice Vlan Port Setup
Device is updated
To view Voice Vlan Port Detail Settings
Port Definitions
For specific ports
Configuring Voice Vlan
To view Voice Vlan OUI Settings
OUI List
Voice Vlan OUI Summary Page contains the following fields
To modify Voice Vlan OUI Settings
Voice Vlan OUI Modify Page contains the following fields
Configuring Quality of Service
Managing System Files
Managing System Files
Configuration Upload
To backup System files
Configuration Download
To restore System files
To download the software image
Restoring
Software
Software Download
Managing System Files
Ethernet Devices
Device Power Display
Port PoE Summary Page displays the following information
Port Power Display
To configure Port PoE Settings
Click Port PoE Setup. The Port PoE Setup Page opens
203
Managing Power Over Ethernet Devices
Managing System Logs
System Log Severity Levels
To view Logging
Logging Display
Logging Setup Page contains the following fields
To define Log Parameters
Managing System Logs
Viewing Statistics
To view port statistics
Port Statistics Summary
Port Statistics Summary Page Field Description
Port Statistics Summary Page Field Description
213
Port Statistics Summary Page Field Description
Managing Device Diagnostics
Port mirroring is not supported for trunk ports
To enable port mirroring
Port Mirroring Setup
Managing Device Diagnostics
To remove port mirroring
Port Mirroring Remove
To view cables diagnostics
Cable Diagnostics Summary
Configuring Cable Diagnostics
Diagnostics
To test cables
Using the command line interface to ping another device
Pinging Another
Request packets to another node on the network
Press Esc to stop pinging
3Com Network
Supervisor
Access Manager
Director
Manager
HP OpenView
Network Node
Application such as 3Com Enterprise Management Suite EMS
Appendix a 3COM Network Management
Environmental
Physical
Feature Description
Electrical
Switch Features
Interface with Crossover Mdix
SSL
Appendix B Device Specifications and Features
PC-AT Serial Cable
Null Modem Cable RJ-45 to RS-232 25-pin
Ethernet Port RJ-45 Pin Assignments
10/100 and 1000BASE-T RJ-45 connections
Ethernet Port RJ-45 Pin Assignments
Appendix C PIN-OUTS
Problem
Troubleshooting
Solutions
No connection and the port LED is off Lost Password
Problems Possible Cause Solution
Problems Possible Cause Solution
Appendix D Troubleshooting
Boot Protocol
Access Control List
Address Resolution
Service Dscp
Appendix E Glossary
Igmp Snooping
Ieee 802.3u
Ieee
Igmp Query
Port Authentication See Ieee
Link Aggregation See Port Trunk
Protocol Rstp
Remote
Remote Monitoring
Secure Shell SSH
Byte blocks and error-corrected
Though located on the same LAN
XModem
Product to Gain
Service Benefits
Register Your
TTroubleshoot
Access Software
Warranty
Services
Purchase Extended
Next section
Must apply for a user name and password
Contact Us
Directory of 3Com resources by region at
00800 4411
Contact Us
Appendix F Obtaining Support for Your 3COM Products
Regulatory Notices
