SuperStack Switch User Guide
 3Com Corporation 5400 Bayfront Plaza Santa Clara, California
 Contents
 Installation and Setup
 Virtual Lans Vlans
 Forwarding Database FDB
 Quality of Service QOS
 Using the WEB Interface
 Technical Specifications Troubleshooting
Page
 About this Guide
Ethernet concepts Ethernet switching and bridging concepts
 Screen displays
Conventions
Icon Description
Convention Description
 Compliance
Related
Documentation
Year
 About this Guide
 About
Switch 9100 Overview
Switch
Features
 Simple Network Management Protocol Snmp
 Virtual LANs VLANs
For information on load sharing, refer to Chapter
 Example
Configuration
Quality of Service QoS
Network
 Key
Switch 9100 used in a backbone configuration
 Ports
Front panel has the following features
View
 Color Indicates 1000BASE-SX Port Status LEDs
Describes the LED behavior on the Switch
LEDs
Standard Media Type Mhz/Km Rating Maximum Distance
 Unit Status LED
Switch 9100 Rear shows the Switch 9100 rear view
Color Indicates 100/1000BASE-TX Port Status LEDs
 MAC Address
Power Sockets
Reset Button
Serial Number
 Public
 Location
Installation and Setup
Determining
 Rack Mounting
Installing
Tabletop
 Installing the Switch 9100
 Function Pin Number Direction
Connecting Equipment to the Console Port
 Switch
 Flashes until the switch has successfully passed the Post
Installation
 First Time
Default Vlan named default
Login admin
Logging on for
 Installation and Setup
 Accessing the Switch
 Accessing the Switch
 Be a range of numbers, for example
You could enter the following shortcut
 Reboot date time cancel
Symbol Description
Config vlan name ipaddress ipaddress
Config snmp community readonly readwrite string
 Line-Editing Keys
Create account admin user username encrypted password
 Command Description
 Disable idletimeout
Disable bootp vlan name all
Disable cli-config-logging
Disable clipaging
 3C177052
Configuring Management Access
Unconfig switch all
Show banner
 3C1770519#
Changing the Default Password
Account Name Access Level
 Show accounts
Create account admin user username encrypted
Viewing Accounts
 Deleting an Account
Methods Managing Switch
Using Access
Profiles
 Config access-profile accessprofile
 To view the contents of an access profile, type
Access Profile Example
 Using a Bootp Server
Using Telnet
To view the Telnet configuration, type
Connecting to Another Host Using Telnet
 Manually Configuring the IP Settings
 Your changes take effect immediately
Config vlan name ipaddress ipaddress subnetmask
Config iproute add default ipaddress metric
For example
 Clear session sessionnumber
Terminate the session by using the following command
Show session
 IP Host
Commands
Using the Web
On the switch
 Supported MIBs
Using Snmp
Accessing Switch
Agents
 Enable Snmp traps
Enable Snmp access
 Command
 Connectivity
Ping command syntax is
Options for the ping command are described in Table
Checking Basic
 Disabling
Switch 9100 Ports
Configuring Switch Port Speed Duplex Setting
Enabling
 Config ports portlist qosprofile
Enable learning ports portlist
Enable ports portlist
Enable sharing masterport
 Show ports portlist txerrors
Disable learning ports portlist
Disable ports portlist
Disable sharing masterport
 Accessing the Switch
 Enable sharing 4 grouping
 Sharing
Configuration
Port-Mirroring
Verifying the Load
 Show mirroring
Commands
Disable mirroring
Example
 Accessing the Switch
 VLANs provide extra security
VLANs help to control traffic
 Igmp Snooping
Igmp Overview
VLANs ease the change and movement of devices
 Forward-mcrouter-only Forward-mcrouter-only is specified,
Enable igmp vlan name
Enable igmp snooping
 Port-Based VLANs
Types of VLANs
 Marketing Finance Sales
Spanning Switches with Port-Based VLANs
 Switch
 AccountingEngineering
 Assigning a Vlan Tag
Uses of Tagged VLANs
 Tagged Ports
Shows a logical diagram of the same network
 Mixing Port-Based and Tagged VLANs
 AppleTalk
Following protocol filters are predefined on the switch
NetBIOS DECNet IPX8022
Predefined Protocol Filters
 Create protocol protocolname
Config protocol protocolname add protocoltype Hexvalue
Defining Protocol Filters
 Packets Over Protocol
Vlan Names
Deleting a Protocol Filter
 On the Switch
Configuring VLANs
 6 to it
 Show vlan name
Displaying Vlan Settings
To display Vlan settings, use the following command
 Deleting VLANs
 Virtual Lans Vlans
 Forwarding Database FDB
 Associating a QoS Profile with an FDB Entry
 Following example adds a permanent entry to the FDB
Config fdb agingtime number
Disable learning ports
Entries
 Show fdb macaddress vlan name portlist Permanent
To display FDB entries, use the command
Displaying FDB Entries
 Name Clear fdb macaddress vlan name portlist
Removing FDB
Delete Fdbentry macaddress vlan
 Forwarding Database FDB
 Protocol
Spanning Tree Protocol STP
Overview
Spanning Tree
 Network with an illegal topology
 Traffic flowing through Bridge B
Initialization
 Stabilization
Reconfiguration
Domains
 STPD2 contains VLANs Manufacturing and Engineering
 Stpd
 Marketing & Sales Marketing, Sales & Engineering
 Create stpd stpdname
Configuring STP on the Switch
Config stpd stpdname add vlan name
Enable stpd stpdname
 Enable stpd port portlist
Shows the commands used to configure STP
 Through 3, and port
Settings
Displaying STP
 Listed in Table
Resetting STP
 Spanning Tree Protocol STP
 Building Blocks
Quality of Service QOS
Quality of Service
 QoS Profiles
 Profile Name Priority Minimum Bandwidth Maximum Bandwidth
 Vlan
 Dynamic MAC Addresses
Permanent MAC addresses
 Blackhole
Command to clear the FDB is as follows
Verifying MAC-Based QoS Settings
Or the command
 Physical and Logical Groupings
Config dot1p type dot1pvalue qosprofile qosname
Enable dot1p replacement ports portlist all
802.1p Packets
 Verifying Physical and Logical Groupings
Source Port
 Show ports portlist qosmonitor
Verifying Configuration Performance
Displaying QoS Information QoS Monitor
 Disable qosmonitor
Enable qosmonitor port port
 Configuring QoS
 Quality of Service QOS
 Status Monitoring Statistics
 Show memory
Show log config
Show switch
Show log priority
 Accuracy
To view port statistics, use the following command
Port Statistics
 To view port receive errors, use the following command
Port Errors
To view port transmit errors, use the following command
 Logging
Port Monitoring
Display Keys
 Clear log static
Is specific to the problem
Where the following is true
Level Description
 Real-Time Display
To configure the log display, use the following command
Configure remote logging by using the following command
 Disable syslog
Disable log display
 Clear Counters
Rmon features supported by the switch
On the network
Allows you to monitor LANs remotely
 History
Alarms
Statistics
 Reducing the Traffic Load
Events
Improving Efficiency
Allowing Proactive Management
 Events
Rmon Group Support Supplied by the Switch Statistics
Alarms
History
 Action High Threshold
Enable disable rmon
 Status Monitoring and Statistics
 To re-enable Web access, use the following command
Using the WEB Interface
Enabling Disabling Web Access
 Browser
Setting Up Your
Accessing the Web
 Webserver busy
Navigating the Web Interface
Task Frame
 Selection Type Key Sequence
Browser Controls
Status Messages
 Do a Get When
Configuring a Vlan
Saving Changes
 Using the WEB Interface
 New Image
Software Upgrade and Boot Options
Secondary image and configuration file on the switch
Downloading a
 Changes
Rebooting the Switch
Saving
 Upgrading
 Software Upgrade and Boot Options
 Save configuration primary
Boot Option
Show configuration
Cancel option
 Software Upgrade and Boot Options
 Safety Information
 Information
Important Safety
 Lithium Battery
 Appendix a Safety Information
 Sécurité Importante
’information de
 Appendix a Safety Information
 Batterie au lithium
 Europe
Wichtige Sicherheitsinformat ionen
 Lithiumbatterie
Warnung Faseroptikanschlüsse Optische Sicherheit
 Appendix a Safety Information
 Technical Specifications
 Terminal Emulation
Protocols Used for Administration
 LEDs
Troubleshooting
 Telnet workstation cannot access the device
Using Command-Line Interface
Switch does not power up
Snmp Network Manager cannot access the device
 Permanent entries remain in the FDB
Traps are not received by the Snmp Network Manager
 Excessive RX CRC errors
You forget your password and cannot log
Port Configuration No link light on 100/1000BASE-TX port
 VLANs You cannot add a port to a Vlan
No link light on Gigabit fiber port
 802.1Q links do not work correctly
VLANs, IP Addresses and default routes
Vlan names
 Using the Command-Line Interface
 Appendix C Troubleshooting
 Online Technical
Services
Technical Support
 Country Data Rate Telephone Number
Access by Analog Modem
Username anonymous
Hours a day, 7 days a week
 408 727
Access by Digital Modem
847 262
 Country Telephone Number Asia, Pacific Rim
Europe, South Africa, and Middle East
 Country Telephone Number Fax Number
Page
 Glossary
 Collision
Bridge
Broadcast
Broadcast storm
 Glossary
 Loop
IP address
Latency
Line speed
 Port trunks See load sharing
 Segment
Repeater
Resilient link
Router
 Telnet
Switch
Switch Database
Standby port
 Glossary
 Numbers
Admin
Index
 FDB
 Rmon
 Tftp
 Index
 Index
 Index of Commands
 118
 Index of Commands
 Index of Commands
 3Com Corporation Limited Warranty
 Warranties Exclusive
 Governing LAW
 EMC Statements