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Dell PowerConnect 3048 User Manual

Fast ethernet managed switch
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Table of Contents
Dell™ PowerConnect™ 3048 Systems User's Guide
Caution: Safety Instructions
Introduction
Features
Front Panel Indicators
Rear Panel Descriptions
Management
Installation
Package Contents
Before You Connect to the Network: Mounting-Kit Instructions
Connecting the Console Port
Password Protection
IP Address Assignment
Stacking
Connecting Devices to the Switch
Web Interface
Web Pages
Home
System Manager
Port Manager
Address Manager
Spanning Tree
VLAN & CoS
Port Trunking
Port Mirroring
SNMP
Multimedia Support
Statistics
Save Configuration
Notes, Notices, and Cautions
 
NOTE:
A NOTE indicates important information that helps you make better use of your computer.
 
NOTICE:
A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
 
CAUTION:
A CAUTION indicates a potential for property damage, personal injury, or death.
Information in this document is subject to change without notice.
© 2002–2003 Dell Computer Corporation. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden.
Trademarks used in this text: Dell, the DELL logo, PowerConnect, Dimension, Inspiron, OptiPlex, Latitude, Dell Precision, and DellNet are trademarks of Dell Computer Corporation;
Microsoft and Windows are registered trademarks of Microsoft Corporation.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Computer Corporation
disclaims any proprietary interest in trademarks and trade names other than its own.
January 2003 P/N 2T180 Rev. A02
Console Interface
User Interface
Navigating in the Console Interface
Password Protection
Main Menu
System Manager
Port Manager
Address Manager
Spanning Tree
VLAN and CoS Setup
Port Trunking
Port Mirroring
SNMP Management
Multimedia Support
Statistics
Save Configuration
Software Upgrades
Upgrade Procedure
Appendix
VLAN Description
VLAN Examples
Troubleshooting
Technical Specifications
Technical Assistance
Problems With Your Order
Product Information
Returning Items for Warranty Repair or Credit
Before You Call
Contacting Dell
Regulatory Notices

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  Summary of Contents for Dell PowerConnect 3048

  • Page 1 Microsoft and Windows are registered trademarks of Microsoft Corporation. Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own.
  • Page 2: Management Features

    Back to Contents Page Introduction Dell™ PowerConnect™ 3048 Systems User's Guide   Features   Front Panel Indicators   Rear Panel Descriptions   Management Features  The Dell™ PowerConnect™ 3048 Fast Ethernet Managed Switch offers the following features:  IP Assignment Mode   SNMP Host Authorization Table  User Authentication Mode — RADIUS Server IP Address, RADIUS Shared Secret, IP Filtering, and Allowed IP Addresses  ...
  • Page 3: Front Panel Indicators

     MIB II (RFC1213)  Ethernet Interface MIB (RFC1643)  Bridge MIB (RFC1493)  Enterprise MIB  4-Group RMON (RFC1757)  Manageable by HP OpenView Front Panel Indicators  The front panel of the system contains all of the Ethernet ports and LEDs. As shown in the following figure, there is one system LED, one redundant power supply (RPS) LED, one diagnostic LED, and one LED for each port on the front panel.
  • Page 4: Rear Panel Descriptions

      Link/Act Mode No 10/100-Mbps link is established.   Steady green A link is established on the port.   Blinking green There is data transmission on the port. Speed Mode A 10-Mbps link is established or no link.   Steady green A 100-Mbps link is established on the port.
  • Page 5 Menu-Driven Console Interface via Serial Port or Telnet  You can also connect a computer or terminal to the serial console port or use Telnet to access the switch. The interface is menu driven so you do not need to use a complex command syntax. The menus are similar to those in the Web interface. For more information, see "Console Interface."...
  • Page 6: Installation

    Back to Contents Page Installation Dell™ PowerConnect™ 3048 Systems User's Guide   Package Contents   Before You Connect to the Network: Mounting-Kit Instructions   Connecting the Console Port   Password Protection   IP Address Assignment   Stacking   Connecting Devices to the Switch Package Contents  Before you begin installing the switch, confirm that your package contains the following items:  Switch...
  • Page 7: Ip Address Assignment

    connector, implemented as a data terminal equipment (DTE) connection.  To use the console port, you need the following equipment:  A terminal or TTY-compatible terminal, or a PC or portable system with a serial port and the ability to emulate a terminal.  A null modem or crossover RS-232 cable with a female DB-9 connector for the console port on the switch (supplied with the switch).
  • Page 8: Connecting Devices To The Switch

      NOTE: By using the feature "change IP on fly," the switch does not need to be rebooted for the changes to take effect. 1.  From the Main Menu, select System Manager. Press <Enter>. 2.  In the first field, type the correct IP address for this system (consult your network administrator). 3.
  • Page 9: Web Interface

    The graphics in this section may differ slightly from the graphics on your computer.  With web-based management, you can configure the PowerConnect 3048 Fast Ethernet Managed Switch and monitor the system using a web browser.  Most web pages for the switch feature the following buttons:  Reload —...
  • Page 10: System Manager

    Home  The Home page briefly describes the Web-based management features.   System Manager  The System Manager page contains all system operations and general information. It includes links to the following options:  General Info — to view general system information and perform general administration.  IP Settings —...
  • Page 11 IP Settings  In the IP Settings page, you can manage the IP-related information about the system. The page includes the following editable fields:  IP Address  Default Gateway  Network Mask  IP Assignment Mode — Sets whether IP functionality is enabled through manual (static) configuration or set by Dynamic Host Configuration Protocol (DHCP) or Boot Protocol (BootP).
  • Page 12: Security Administration

    Security Administration  User Authentication Mode — Selects the authentication or authentication sequence required.   Local Only — The switch authenticates the user. ¡   Local then Remote — The switch attempts to authenticate the user first, and then a RADIUS server attempts to authenticate the user. ¡...
  • Page 13: Firmware Upgrade

    Firmware Upgrade  From the Firmware Upgrade page, you can configure the system to download a new version of the management software. You can also set the system to use the new software without overwriting the previous version. See "Software Upgrades" for more information about this process.  The Firmware Upgrade page contains the following information:  Current Hardware Version  Current Boot ROM Version...
  • Page 14: Port Manager

      Reset  Select Reset to reboot the switch. When prompted, confirm that you want to reset the switch.   Port Manager  The Port Manager contains links to the following options:  Port Settings  GBIC Port Settings  On this page, you can view and edit port parameters. For each port number listed under the Port column, you can change the following parameters listed by column name on the screen:  Name —...
  • Page 15: Address Manager

     Link — Shows the status of the link: Up or Down.  Admin Enabled — Shows whether a port has been enabled by the network administrator. A network administrator can manually disable a port.  State — Describes the state of the port as determined by the Spanning Tree Protocol.  Operating Parameters —...
  • Page 16: Static Addresses

    Static Addresses  From the Static Addresses page, you can specify the MAC address and port number of systems that are to remain available to the switch for an indeterminate amount of time.  The following options are available:  MAC Address — Allows you to enter the MAC address of a system you want to set as static.  Port Selection —...
  • Page 17: Address Aging

    Address Aging  In the Address Aging page, you can specify how long an address stays available to the switch if it is not configured as static.   NOTE: The default value is set to 300 seconds (5 minutes).   The following option is available:  Aging Time — The time before an address is purged from the system. You can change this value to any number between 10 and 1,000,000 seconds.  To save any changes you make in this page, click Apply. To reset these fields to their current value, click Reload.  ...
  • Page 18: Spanning Tree

    Spanning Tree  The Spanning Tree page contains links to the following pages that allow you to specify the parameters of the spanning tree protocol:   NOTE: Spanning Tree is enabled by default.  Bridge Settings  Port Settings Bridge Settings  From the Bridge Settings page, you can enable and configure the Spanning Tree. The following options are available:  Enable —...
  • Page 19: Vlan & Cos

     Cost — Assigned to this port for the Spanning Tree Protocol (1- 65536). A port with a lower cost is less likely to be blocked if the Spanning Tree Protocol is detecting network loops.  Fast Link — Immediately enables the port in forwarding state when a link comes up. The port is not part of the Spanning Tree at that time, but will participate in future Spanning Tree resolutions.
  • Page 20 2.  Check the Remove VLAN box for the VLAN you want to remove. 3.  Click Apply. Add VLAN Membership 1.  Under the Show VLAN drop-down menu, select the VLAN you want to edit. 2.  Change the VLAN member by clicking the port icon until the desired state [T (tagged) or U (untagged)] or blank appears. 3.
  • Page 21: Port Trunking

     In the Default Port CoS page, you can specify the priority for each port on your switch.   Layer 3 Priority — DiffServ  DiffServ — You can change the default Type of Service (ToS) priority by selecting Normal Priority or High Priority for each class of services. This setting leverages the IETF definition of the IPv4 ToS octet in the IP packet-header by using the Differentiated Services Code.
  • Page 22: Port Mirroring

    NOTICE: Built-in 10/100/1000BASE-T ports cannot be trunked with GBIC ports.  To add a port to a trunk, click the toggle button below the port number until the correct trunk number appears.   NOTICE: All ports participating in a trunk must be operating in Full Duplex mode.  ...
  • Page 23: Community Table

     Community Table  Host Table  Trap Settings Community Table  In the Community Table page, you can create different communities and customize access. The public string has Get privileges by default.  The following options are available:  Community Name — Allows you to type the name of the community you want to create  Get —...
  • Page 24: Trap Settings

    Trap Settings  You can enable or disable authentication traps on the Trap Settings page:  Enabled — The system generates an SNMP trap upon a host authorization failure.  Disabled — The system does not generate authentication traps.  All hosts in community strings with trap privileges are notified when a trap condition occurs.  ...
  • Page 25: Comparison Chart

     Enabled — The system detects IGMP queries and report packets and manages IP multicast traffic through the switch.  Disabled — The switch forwards traffic and ignores any IGMP requests.   Statistics  From the Statistics page, you can chart a variety of system data. There are three types of graphs to chose from: Comparison Chart, Group Chart, and History Chart.
  • Page 26: History Chart

    History Chart  The History Chart charts one type of statistic for any combination of ports. The chart presents data across a set time period so that you can monitor fluctuations over time.  Statistics — The type of system data to be monitored  Refresh Rate —...
  • Page 27: Utilization Summary

      Utilization Summary  The Utilization Summary page allows you to view (by port) the link status; percent utilization; and ratios of incoming unicast, nonunicast, and error packets.  Click the Refresh button to refresh the Utilization Summary page.  ...
  • Page 28: Counter Summary

    Counter Summary  The Counter Summary page allows you to view all ports accumulated, unicasts and nonunicasts received and transmitted, and errors received and transmitted.  Click the Refresh button to refresh the Counter Summary page.   Save Configuration  If you make any changes to the system through the Web interface, you must save the changes in the Save Configuration page.  The following options are available:  Save Configuration to NVRAM —...
  • Page 29 Back to Contents Page  ...
  • Page 30: Console Interface

    Back to Contents Page Console Interface Dell™ PowerConnect™ 3048 Systems User's Guide   User Interface   VLAN and CoS Setup   Navigating in the Console Interface   Port Trunking   Password Protection   Port Mirroring   Main Menu   SNMP Management   System Manager   Multimedia Support   Port Manager   Statistics   Address Manager   Save Configuration   Spanning Tree  ...
  • Page 31: General Info

     From the initial welcome screen, you must enter a password to proceed, if password protection is enabled. If password protection is disabled, the Main Menu is displayed and you immediately have access to the switch management interface. By default, password protection is disabled. If enabled, the default password is switch.
  • Page 32: Security Admin

    IP Settings  This menu manages the IP-related information about the computer.  The IP Settings page includes the following editable fields:  IP address  Network mask  Gateway address  Press <Ctrl><w> to save any changes made.   NOTE: You must reboot the system from the System Manager/Reset page for the changes to take effect.  See "Installation"...
  • Page 33  Disable Telnet/Web Access (Console Only) — Provides an option to enable or disable Telnet or Web access to the switch.   NOTE: The default password is switch.      ...
  • Page 34 Firmware Upgrade  From the Firmware Upgrade screen, you can configure the system to download a new version of the management software. You can also set the system to use the new software without overwriting the previous version. See "Software Upgrades" for more information about this process.  The Firmware Upgrade screen contains the following information:  Hardware Version  Boot ROM Version...
  • Page 35  Admin — Allows the administrator to enable or disable the port.  State — Displays this port is blocking and forwarding.  Rate/Duplex — Offers the choice of Full, Half, or Auto, which automatically detects the value of the attached device and sets the port duplex mode accordingly.
  • Page 36   Dynamic Addresses  The Dynamic Addresses lookup table allows you to view the MAC addresses that are currently in the address database. When addresses are in the database, the packets intended for those addresses are forwarded directly to those ports. You can filter out the table by port, VLAN, and MAC address by checking those fields.
  • Page 37   Static Multicast Groups Membership  Static multicast is a way to manage multicast traffic. Each multicast address can be assigned ports that will participate in that multicast group. Ports that are added to a multicast group will forward all multicast packets from the specified multicast address to the other ports in that group. The membership page is where ports are added to multicast groups.
  • Page 38  Hello Time — The interval between configuration messages sent by the spanning tree protocol. ¡  Max Age — The amount of time before the system discards a configuration message. ¡  Forward Delay — The amount of time the system spends in learning and listening states. ¡...
  • Page 39  CoS Settings  Layer 3 Priority — DiffServ   VLAN Administration  You can add up to 64 VLANs with unique ID numbers and names. VLAN ID numbers must be in the range of 1 to 4094. Add a VLAN  Type a unique numeric VLAN ID and press <Enter>.  Type a unique VLAN name and press <Enter>.
  • Page 40: Pvid Settings

    PVID Settings  In the PVID Settings screen, you can specify the Port VLAN ID (PVID) for each port on your switch. All untagged packets entering the switch are tagged by default with the ID specified by the port's PVID.   CoS Settings  Port Priority allows the user to specify which ports have greater precedence in situations where traffic may be buffered in the switch due to congestion.
  • Page 41   Port Trunking  In the Port Trunking page, you can create multiple links between switches that work as one virtual, aggregate link. You can create four trunks at a time, with each trunk containing up to eight ports. Only ports of the same speed can belong to a single trunk: 10/100 Fast Ethernet ports and Gigabit Ethernet ports cannot be in the same trunk.
  • Page 42: Snmp Management

    Port Mirroring  From the Port Mirroring menu, you can monitor traffic on a specific port. The switch can monitor only single-direction traffic, either transmission or reception. When port mirroring is enabled, all the transmission or receiving traffic of the mirrored port is forwarded to the mirroring port.  The following options are available:  Port Mirroring is —...
  • Page 43 Community Table  In the Community Table page, you can create different communities and customize access. The public string has Get privileges by default.  The following options are available:  Community String — Type the name of the community you want to create.  Get —...
  • Page 44 Trap Settings  The Trap Settings page allows you to set up authentication traps. The following options are available:  Authentication Trap  Enabled — The system generates an SNMP trap upon a host authorization failure. ¡  Disabled — The system does not generate authentication traps. ¡...
  • Page 45 IGMP  With Internet Group Management Protocol (IGMP) Snooping, you can configure the switch to forward multicast traffic intelligently. Based on the IGMP query and report messages, the switch forwards traffic only to the ports that request multicast traffic. This prevents the switch from broadcasting the traffic to all ports and possibly disrupting network performance.
  • Page 46 Back to Contents Page  ...
  • Page 47: Software Upgrades

    Back to Contents Page Software Upgrades Dell™ PowerConnect™ 3048 Systems User's Guide Upgrade Procedure   NOTE: Perform the upgrade procedure from the console interface via an RS-232 serial port. When using a Telnet session or Web interface alone, your connection to the switch is not available until the switch has entered forwarding mode. This takes approximately three minutes.
  • Page 48: Vlan Description

      Product Information   VLAN Examples   Returning Items for Warranty Repair or Credit   Troubleshooting   Before You Call   Technical Specifications   Contacting Dell   Technical Assistance   Regulatory Notices   Problems With Your Order VLAN Description  Packets received by the switch are treated in the following ways:  When an untagged packet enters a port, the system automatically tags it with the port's default VLAN ID tag number.
  • Page 49 3.  To allow untagged packets to participate in the new VLAN, change the Port VLAN IDs for the relevant ports.   Example 2  Example 2 steps through a more elaborate setup illustrating all possible scenarios for a comprehensive understanding of tagged VLANs. 1.
  • Page 50      ...
  • Page 51: Troubleshooting

    3.  Set up the Port VLAN IDs as shown in the following illustration:    The specific ports shown in the previous illustration have the following port VLAN ID settings. The port VLAN ID settings for each port are configured in the PVID Settings page:  ...
  • Page 52: Technical Specifications

     Check the following:  The cable to connect the switch. Ensure that you are using an RJ-45 (network) cable and not an RJ-11 (telephone) cable. ¡  Ensure that the power cord is firmly connected to the relevant switch unit and to the supply outlet. If the connection is secure and there is still no ¡...
  • Page 53: Technical Assistance

    Online Services  You can access Dell Support at support.dell.com. Select your region on the WELCOME TO DELL SUPPORT page, and fill in the requested details to access help tools and information.  You can contact Dell electronically using the following addresses:  World Wide Web...
  • Page 54: Problems With Your Order

    Automated Order-Status Service  To check on the status of any Dell products that you have ordered, you can go to support.dell.com, or you can call the automated order-status service. A recording prompts you for the information needed to locate and report on your order. For the telephone number to call, see the...
  • Page 55: Contacting Dell

    Toll-free numbers are for use within the country for which they are listed.  When you need to contact Dell, use the electronic addresses, telephone numbers, and codes provided in the following table. If you need assistance in determining which codes to use, contact a local or an international operator.
  • Page 56 TechFax  02 22 83 27 28 Switchboard  02 22 83 27 11 Denmark (Copenhagen) Website: support.euro.dell.com      E-mail Support (portable computers): den_nbk_support@dell.com     International Access Code: 00 E-mail Support (desktop computers): den_support@dell.com     Country Code: 45 E-mail Support (servers): Nordic_server_support@dell.com     ...
  • Page 57  toll-free: 999-119 El Salvador General Support  01-899-753-0777 Finland (Helsinki) Website: support.euro.dell.com     E-mail: fin_support@dell.com    International Access Code: E-mail Support (servers): Nordic_support@dell.com     Technical Support  09 253 313 60 Country Code: 358 Technical Support Fax  09 253 313 81 City Code: 9 Relational Customer Care  09 253 313 38 Home/Small Business Customer Care  09 693 791 94...
  • Page 58 Country Code: 81 Technical Support outside of Japan (Dimension and Inspiron)  81-44-520-1435 City Code: 44 Technical Support (Dell Precision™, OptiPlex™, and Latitude™)  toll-free:0120-198-433 Technical Support outside of Japan (Dell Precision, OptiPlex, and Latitude)  81-44-556-3894 24-Hour Automated Order Service  044-556-3801 Customer Care  044-556-4240 Business Sales Division (up to 400 employees)  044-556-1465...
  • Page 59 Home/Small Business Sales Fax  020 674 47 75 Relational Sales Fax  020 674 47 50 Switchboard  020 674 50 00 Switchboard Fax  020 674 47 50 New Zealand E-mail (New Zealand): nz_tech_support@dell.com     E-mail (Australia): au_tech_support@dell.com     International Access Code: 00 Home and Small Business  0800 446 255 Country Code: 64 Government and Business  0800 444 617...
  • Page 60    E-mail: swe_support@dell.com    International Access Code: 00 E-mail Support for Latitude and Inspiron:    Swe-nbk_kats@dell.com Country Code: 46 E-mail Support for OptiPlex: Swe_kats@dell.com    City Code: 8 E-mail Support for Servers: Nordic_server_support@dell.com    Technical Support  08 590 05 199 Relational Customer Care  08 590 05 642...
  • Page 61  toll-free: 1-877-Dellnet  (1-877-335-5638) Employee Purchase Program (EPP) Customers  toll-free: 1-800-695-8133 Financial Services website: www.dellfinancialservices.com  Financial Services (lease/loans)  toll-free: 1-877-577-3355 Financial Services (Dell Preferred Accounts [DPA])  toll-free: 1-800-283-2210 Business   Customer Service and Technical Support  toll-free: 1-800-822-8965 Employee Purchase Program (EPP) Customers  toll-free: 1-800-695-8133 Projectors Technical Support  toll-free: 1-877-459-7298...
  • Page 62: Regulatory Notices

    Using shielded cables ensures that you maintain the appropriate EMC classification for the intended environment. For parallel printers, a cable is available from Dell. If you prefer, you can order a cable from Dell on the World Wide Web at accessories.us.dell.com/sna/category.asp?category_id=4117.
  • Page 63: Ic Notice (Canada Only)

    Most Dell computer systems (and other Dell digital apparatus) are classified by the Industry Canada (IC) Interference-Causing Equipment Standard #3 (ICES- 003) as Class B digital devices. To determine which classification (Class A or B) applies to your computer system (or other Dell digital apparatus), examine all registration labels located on the bottom or the back panel of your computer (or other digital apparatus).
  • Page 64: Simplified Chinese Class A Warning Notice (China Only)

    VCCI Notice (Japan Only) Most Dell computer systems are classified by the Voluntary Control Council for Interference (VCCI) as Class B information technology equipment (ITE). However, the inclusion of certain options can change the rating of some configurations to Class A. ITE, including peripherals, expansion cards, printers, input/output (I/O) devices, monitors, and so on, integrated into or connected to the system should match the electromagnetic environment classification (Class A or B) of the computer system.
  • Page 65: Mic Notice (Republic Of Korea Only)

    MIC Notice (Republic of Korea Only) To determine which classification (Class A or B) applies to your computer (or other Dell digital device), examine the Republic of Korean Ministry of Information and Communications (MIC) registration labels located on your computer (or other Dell digital device). The MIC label may be located separately from the other regulatory marking applied to your product.
  • Page 66: Polish Center For Testing And Certification Notice

    Please note that this device has been approved for nonbusiness purposes and may be used in any environment, including residential areas. MIC Class B Regulatory Label If the regulatory label includes the following marking, your computer is a Class B product. Polish Center for Testing and Certification Notice The equipment should draw power from a socket with an attached protection circuit (a 3-prong socket).
  • Page 67: Nom Information (Mexico Only)

    NOM Information (Mexico Only)  The following information is provided on the device(s) described in this document in compliance with the requirements of the official Mexican standards (NOM):   Exporter: Dell Computer Corporation One Dell Way Round Rock, TX 78682 Importer: Dell Computer de México, ...
  • Page 68 Back to Contents Page Caution: Safety Instructions Dell™ PowerConnect™ 3048 Systems User's Guide    Use the following safety guidelines to ensure your own personal safety and to help protect your system from potential damage. General  Observe and follow service markings. Do not service any product except as explained in your system documentation.
  • Page 69: Rack Mounting Of Systems

    It is your responsibility to have the final combination of system and rack kit in a rack cabinet evaluated for suitability by a certified safety agency. Dell disclaims all liability and warranties in connection with such combinations.
  • Page 70: Modems, Telecommunications, Or Local Area Network Options

      CAUTION: A qualified electrician must perform all connections to DC power and to safety grounds. All electrical wiring must comply with applicable local or national codes and practices.   CAUTION: Never defeat the ground conductor or operate the equipment in the absence of a suitably installed ground conductor.