Dell N3048 Specifications

Dell™PowerConnect™3048SystemsUser'sGuide Notes, Notices, and Cautions    Information in this document is subject to change without notic

Home The Home page briefly describes the Web-based management features.  System Manager The System Manager page contains all system operations a

IP Settings In the IP Settings page, you can manage the IP-related information about the system. The page includes the following editable fields:

Security Administration l User Authentication Mode — Selects the authentication or authentication sequence required. ¡  Local Only — The switch au

Firmware Upgrade From the Firmware Upgrade page, you can configure the system to download a new version of the management software. You can also s

 Reset Select Reset to reboot the switch. When prompted, confirm that you want to reset the switch.  Port Manager The Port Manager contains

l Link — Shows the status of the link: Up or Down. l Admin Enabled — Shows whether a port has been enabled by the network administrator. A network

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 swit

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.  T

Spanning Tree The Spanning Tree page contains links to the following pages that allow you to specify the parameters of the spanning tree protocol:

l 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

Back to Contents Page Introduction Dell™PowerConnect™3048SystemsUser'sGuide Features Front Panel Indicators Rear Panel Descriptions

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, selec

In the Default Port CoS page, you can specify the priority for each port on your switch.  Layer 3 Priority — DiffServ l DiffServ — You can chang

To add a port to a trunk, click the toggle button below the port number until the correct trunk number appears.   To save any changes you make in

l Community Table l Host Table l Trap Settings Community Table In the Community Table page, you can create different communities and customiz

Trap Settings You can enable or disable authentication traps on the Trap Settings page: l Enabled — The system generates an SNMP trap upon a host

l Enabled — The system detects IGMP queries and report packets and manages IP multicast traffic through the switch. l Disabled — The switch forward

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 tha

 Utilization Summary The Utilization Summary page allows you to view (by port) the link status; percent utilization; and ratios of incoming unica

Counter Summary The Counter Summary page allows you to view all ports accumulated, unicasts and nonunicasts received and transmitted, and errors rec

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l MIB II (RFC1213) l Ethernet Interface MIB (RFC1643) l Bridge MIB (RFC1493) l Enterprise MIB l 4-Group RMON (RFC1757) l Manageable by HP O

Back to Contents Page Console Interface Dell™PowerConnect™3048SystemsUser'sGuide  You can access the console, using VT100 terminal emul

From the initial welcome screen, you must enter a password to proceed, if password protection is enabled. If password protection is disabled, the Mai

IP Settings This menu manages the IP-related information about the computer. The IP Settings page includes the following editable fields: l IP

l Disable Telnet/Web Access (Console Only) — Provides an option to enable or disable Telnet or Web access to the switch.     NOTE: The defa

Firmware Upgrade From the Firmware Upgrade screen, you can configure the system to download a new version of the management software. You can also s

l Admin — Allows the administrator to enable or disable the port. l State — Displays this port is blocking and forwarding. l Rate/Duplex — Offers

 Dynamic Addresses The Dynamic Addresses lookup table allows you to view the MAC addresses that are currently in the address database. When addre

 Static Multicast Groups Membership Static multicast is a way to manage multicast traffic. Each multicast address can be assigned ports that will

¡ Hello Time — The interval between configuration messages sent by the spanning tree protocol. ¡ Max Age — The amount of time before the system dis

l CoS Settings l Layer 3 Priority — DiffServ  VLAN Administration You can add up to 64 VLANs with unique ID numbers and names. VLAN ID numbe

  10/100/1000 Ports  Mini-GBIC Ports  Rear Panel Descriptions The rear panel of the system contains the gigabit stacking ports and an AC power re

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

 Port Trunking In the Port Trunking page, you can create multiple links between switches that work as one virtual, aggregate link. You can creat

Port Mirroring From the Port Mirroring menu, you can monitor traffic on a specific port. The switch can monitor only single-direction traffic, eith

Community Table In the Community Table page, you can create different communities and customize access. The public string has Get privileges by de

Trap Settings The Trap Settings page allows you to set up authentication traps. The following options are available: l Authentication Trap ¡ En

IGMP With Internet Group Management Protocol (IGMP) Snooping, you can configure the switch to forward multicast traffic intelligently. Based on the

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Back to Contents Page Software Upgrades Dell™PowerConnect™3048SystemsUser'sGuide Upgrade Procedure  The application software is field u

Back to Contents Page Appendix Dell™PowerConnect™3048SystemsUser'sGuide VLAN Description Packets received by the switch are treated in t

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 thr

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 acce

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3. Set up the Port VLAN IDs as shown in the following illustration:  The specific ports shown in the previous illustration have the following

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. ¡ E

Technical Assistance If you need help with a technical problem, Dell is ready to assist you.  1. Make a copy of the Diagnostics Checklist and fill

portable and desktop computers. When you call AutoTech, use your touch-tone telephone to select the subjects that correspond to your questions. The

Contacting Dell To contact Dell electronically, you can access the following websites: l www.dell.com l support.dell.com (technical support) l p

Bermuda General Support 1-800-342-0671 Bolivia General Support toll-free:800-10-0238 Brazil International Access Code: 00 Country Code: 55 City Cod

Home/Small Business Customer Care 32875505 Switchboard (Relational) 32871200 Fax Switchboard (Relational) 32871201 Switchboard (Home/Small Busin

Small Business Customer Care 012044444 U.K. Customer Care (dial within U.K. only) 08709060010 Corporate Customer Care 012044003 Ireland Sales

Macao Country Code: 853 Technical Support toll-free:0800582 Customer Service (Penang, Malaysia) 6046334949 Transaction Sales toll-free:080058

Back to Contents Page Installation Dell™PowerConnect™3048SystemsUser'sGuide Package Contents Before You Connect to the Network: Mounti

Fax Switchboard 67116865 Panama General Support 001-800-507-0962 Peru General Support 0800-50-669 Poland (Warsaw) International Access Code: 011 C

Sales 0859005185 Switzerland (Geneva) International Access Code: 00 Country Code: 41 City Code: 22 Website: support.euro.dell.com  E-mail: swis

Regulatory Notices Electromagnetic Interference (EMI) is any signal or emission, radiated in free space or conducted along power or signal leads, that

This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules. These limits are

the limits set by the EPA's ENERGY STAR®Computers program. ENERGY STAR®Emblem The EPA's ENERGY STAR®Computers program is a joint effo

Class B ITE This is a Class B product based on the standard of the Voluntary Control Council for Interference (VCCI) for information technology eq

Please note that this device has been approved for nonbusiness purposes and may be used in any environment, including residential areas. MIC Class B R

If you find a or mark on the regulatory label on the bottom, side, or back panel of your computer, the following section is applicable: NOM I

Back to Contents Page Caution: Safety Instructions Dell™PowerConnect™3048SystemsUser'sGuide  Use the following safety guidelines to ensu

l Do not modify power cables or plugs. Consult a licensed electrician or your power company for site modifications. Always follow your local/national

connector, implemented as a data terminal equipment (DTE) connection. To use the console port, you need the following equipment: l A terminal or TTY

  Back to Contents Page   CAUTION: A qualified electrician must perform all connections to DC power and to safety grounds. All electrical wiring

 1. From the Main Menu, select System Manager. Press <Enter>. 2. In the first field, type the correct IP address for this system (consult y

Back to Contents Page Web Interface Dell™PowerConnect™3048SystemsUser'sGuide  With web-based management, you can configure the PowerCon