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D-Link DFE-2600 User Manual

Dfe-2600 series ethernet/fast ethernet dual-speed managed/unmanaged stackable hubs
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DFE-2600 Series
Ethernet/Fast Ethernet
Dual-Speed
Managed/Unmanaged
Stackable Hubs
User
Guide
Rev. 03 (December, 1998)
6DFE2600M.03
Printed In Taiwan
RECYCLABLE
Table of Contents
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Summary of Contents for D-Link DFE-2600

  • Page 1 DFE-2600 Series Ethernet/Fast Ethernet Dual-Speed Managed/Unmanaged Stackable Hubs User Guide Rev. 03 (December, 1998) 6DFE2600M.03 Printed In Taiwan RECYCLABLE...

  • Page 2: Copyright Statement

    Trademarks Copyright 1998 D-Link Corporation. Contents subject to change without prior notice. D-Link is a registered trademark of D-Link Corporation/D-Link Systems, Inc. All other trademarks belong to their respective proprietors. Copyright Statement No part of this publication may be reproduced in any form or by any means or used to make any derivative such as translation, transformation, or adaptation without permission from D-Link Corporation/D-Link Systems Inc., as stipu-...

  • Page 3: Wichtige Sicherheitshinweise

    Wichtige Sicherheitshinweise Bitte lesen Sie sich diese Hinweise sorgftig durch. Heben Sie diese Anleitung f den spern Gebrauch auf. Vor jedem Reinigen ist das Ger vom Stromnetz zu trennen. Vervenden Sie keine Fl sig- oder Aerosolreiniger. Am besten dient ein angefeuchtetes Tuch zur Reinigung. Um eine Beschigung des Geres zu vermeiden sollten Sie nur Zubehteile verwenden, die vom Hersteller zugelassen sind.

  • Page 4: Limited Warranty

    The one-year period of warranty on complete products applies on condition that the product's Registration Card is filled out and returned to a D-Link office within ninety (90) days of purchase. A list of D-Link offices is provided at the back of this manual, together with a copy of the Registration Card. Failing such timely registra- tion of purchase, the warranty period shall be limited to 90 days.
  • Page 5 D-Link Offices for Registration and Warranty Service The product's Registration Card, included at the back of this manual, must be completed and sent to a D-Link office. To obtain an RMA number for warranty service on a hardware product, or software product, contact the D-Link office nearest you.

  • Page 6: Limitation Of Liability

    LIMITATION OF LIABILITY IN NO EVENT WILL D-LINK BE LIABLE FOR ANY DAMAGES, INCLUDING LOSS OF DATA, LOSS OF PROFITS, COST OF COVER OR OTHER INCIDENTAL, CONSEQUENTIAL OR INDIRECT DAMAGES ARISING OUT THE INSTALLATION, MAINTENANCE, USE, PERFORMANCE, FAILURE OR INTERRUPTION OF A D- LINK PRODUCT, HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY.

  • Page 7: Table Of Contents

    ABLE OF BOUT UIDE Models Covered... xi Conventions ... xi Overview of the User ...1 NTRODUCTION Product Description ...1 Product Features...2 Dual-Speed Ethernet Hub Technology Overview...4 NPACKING AND ETUP Unpacking ...6 Identifying External Components ...7 Front Panel...7 Rear Panel ...9 Installing the Hub...10 Installation ...10 Rack Mounting...11...
  • Page 8 The Diagnostic Port ...24 Diagnostic Port Connection ...24 Hub to End-Station Connection ...25 Hub-to-Hub Uplink...27 Optional Module Connections...29 Module Installation ...30 Switch Module (DFE-260S) ...31 Fiber Optic Module (DFE-260FX) ...31 Fast Ethernet Module (DFE-260TX) ...32 ASTER ETUP AND Navigation and Conventions ...36 In-Band Setup Instructions...37...
  • Page 9 Out-of-Band Management and Console Settings ...47 Software Update on Boot ...48 SNMP Information...49 SNMP Traps ...51 SNMP Security (Community Names) ...52 Adding and Deleting Users ...53 Primary/Backup Master...55 Hub Stack Management...56 Controlling Hubs in the Hub Stack ...56 Controlling Individual Ports ...59 Monitoring the Hub Stack ...60 Displaying Port and Group Statistics ...61 Displaying Segment Statistics ...64...
  • Page 10 Dual-Speed Stackable Hubs User’s Guide ...119 PECIFICATIONS General...119 Hub-to-Hub Cascading ...120 LED Indicators ...120 Environmental and Physical...120 ...123 LOSSARY...

  • Page 11: About This Guide

    BOUT UIDE This guide discusses how to install and use the DFE-2600 series dual-speed, managed/unmanaged, stackable Ethernet/Fast Ethernet Hubs. Models Covered Unmanaged Models: DFE-2616, DFE-2616x, DFE-2624, DFE-2624x. Managed Models: DFE-2616i, DFE-2616ix, DFE-2624i, DFE-2624ix. ” models include a switch module in Slot 1 of the rear panel. All ”...

  • Page 12: Overview Of The User Guide

    Overview of the User Chapter 1, Introduction. Provides information on Fast Ethernet net- works, and introduces the features of the DFE-2600 series hubs. Chapter 2, Unpacking and Setup. Helps you get started in setting up the hub.

  • Page 13: Introduction

    This means you can connect all of your Ethernet and Fast Ether- net hosts to a DFE-2600 series hub stack, without any rewiring required when a host is upgraded from 10Mbps to 100Mbps.

  • Page 14: Product Features

    100BASE-FX connections. DFE-2600 series hubs each have two slots for accepting slide-in modules. Product Features The list below highlights the features and specifications of the DFE-2600 series hubs. Compatible with the IEEE 802.3 10BASE-T Ethernet and 802.3u 100BASE-TX Fast Ethernet industry standards for interoperability with other Ethernet/Fast Ethernet network devices.
  • Page 15 Full hub stack and network management provided via an SNMP man- agement agent (DFE-2616i, DFE-2616ix, DFE-2624i, DFE-2624ix). An optional slide-in switch module allows bridging between 10Mbps and 100Mbps segments. Only one switch module is needed per stack, but managed hub stacks can make use of additional switch modules for redundancy.

  • Page 16: Dual-Speed Ethernet Hub Technology Overview

    Dual-Speed Stackable Hubs User’s Guide Dual-Speed Ethernet Hub Technology Overview Dual-speed Ethernet hubs have been developed to make it simpler to plan networks containing both 10-Mbps Ethernet and 100-Mbps Fast Ethernet technologies, especially when network hosts are being gradually migrated to new Fast Ethernet connections.
  • Page 17 The two repeaters are two separate collision domains re- gardless of whether a switching circuit is present. If a DFE-2600 series hub or hub stack is uplinked through a twisted-pair or Uplink port to another dual-speed or Fast Ethernet hub or stack, the hub will function as a Class II Fast Ethernet device and be subject to those connectiv- ity rules.

  • Page 18: Npacking And Etup

    Dual-Speed Stackable Hubs User’s Guide This chapter provides information on the unpacking and initial installation of your hub stack. Unpacking Open the shipping carton of your hub and carefully unpack the contents. The carton should contain the following items: One dual-speed stackable hub One AC power cord, suitable for your area nections One daisy-chain cable...

  • Page 19: Identifying External Components

    Inspect the hub and all accompanying items. If any item is damaged or missing, report the problem to your D-Link dealer. Identifying External Components This section identifies all the major external components of the hub. Both the front and rear panels are shown, followed by a description of each panel fea- ture.
  • Page 20 If you need to connect to another device with MDI-X ports such as another hub or an Ethernet switch, you should use a cross- over cable, or connect using the Uplink port (described below). For more information about crossover connection, see the Crossover Cables section on page 112.

  • Page 21: Rear Panel

    Used to install module options for various kinds of additional connec- tions, as well as the DFE-260S 10Mbps/100Mbps bridge module. (In the DFE-2616x, DFE-2616ix, DFE-2624x and DFE-2624ix, module slot 1 is already occupied by the switch module which is standard on these mod- els.) Daisy-Chain IN Port...

  • Page 22: Installing The Hub

    Dual-Speed Stackable Hubs User’s Guide This 9-pin serial connector is used for connecting a console to the DFE- 2600 series master hubs for out-of-band management of this particular hub or the entire stack. Provides air circulation and heat dissipation. Be sure to leave adequate space at the rear of the unit for proper ventilation.

  • Page 23: Rack Mounting

    When installing the hub stack on a level surface, attach the rubber feet to the bottom of each device. The rubber feet cushion the hub and protect the hub case from scratching. Rack Mounting The hub can be mounted in an EIA standard-size, 19-inch rack, which can be placed in a wiring closet with other equipment.

  • Page 24: Replacing The Power Supply

    Dual-Speed Stackable Hubs User’s Guide Replacing the Power Supply The hub comes with a removable power supply for easy replacement. In the unlikely event that the power supply fails or is damaged, follow the steps below to replace it: Disconnect the power cord from the AC outlet. Disconnect the power cord from its connector on the rear of the hub.
  • Page 25 Slide the replacement power supply into the chassis, engaging the connector carefully. Attach the power cord to the connector of the power supply and con- nect the other end of the power cord to the AC supply source. Unpacking and Setup...

  • Page 27: Understanding Indicators

    Before connecting network devices to the hub, take a few minutes to look over this section and familiarize yourself with the front panel LED indicators of your dual-speed hub, depicted below. DFE-2624i / DFE-2624ix Indicator Panel DFE-2616i / DFE-2616ix Indicator Panel Understanding Indicators NDERSTANDING NDICATORS...

  • Page 28: Hub State Indicators

    Dual-Speed Stackable Hubs User’s Guide DFE-2624 / DFE-2624x Indicator Panel DFE-2616 / DFE-2616x Indicator Panel Hub State Indicators Power Indicator This indicator lights green when the hub is receiving power; otherwise, it is off. Collision Indicators (COL10 and COL100) These indicators indicate data collisions on the respective 10Mbps Ether- net or 100Mbps Fast Ethernet segments of the hub.

  • Page 29: Module Indicators

    Module Indicators The two module indicators, SLOT1 and SLOT2, indicate a good link to a module installed in the respective slot. For the DFE-260S switch module the indicator will come on when the module is installed. For the DFE-260FX and DFE-260TX modules, the slot link indicator should light whenever the module is installed and there is a valid link.

  • Page 30: Port State Indicators

    Dual-Speed Stackable Hubs User’s Guide Port State Indicators There is one port state indicator for each of the twisted-pair ports on the hub. Each port LED status indicator reports the port and shows whether or not the port has been partitioned. The following describes each indicator and the meaning of each condition: Link (green) The indicator of a port lights green when the port is connected to a pow-...

  • Page 31: Snmp Indicator

    SNMP Indicator (Master models only) This indicator comes on when the SNMP agent of a DFE-2600 series master hub is active. In a stack with both a Primary and a Backup Master, the SNMP LED of the Primary master will be lit and will flash to indicate SNMP activity.
  • Page 32 Dual-Speed Stackable Hubs User’s Guide 1. A good connection has been established with a console (for example, a PC or other computer). The diagnostic port of a DFE-2600 series master hub must be connected to the console's RS-232 serial port us- ing a normal serial cable.

  • Page 33: Making Connections

    AKING ONNECTIONS This chapter discusses how to cascade hubs to create a stack, make connec- tions to the hub twisted-pair and console ports, and link this hub with other hubs (or hub stacks). Hub Cascading/Building a Stack You can stack up to five hubs using the daisy-chain ports located on the rear of the hub to form one logical hub.
  • Page 34 Dual-Speed Stackable Hubs User’s Guide Hubs should not be added to the stack or removed from the stack while the power is on to any hub in the stack. Note: Always turn off power to the entire stack be- fore adding or removing hubs. Making Connections...

  • Page 35: Connectivity Rules

    The maximum length of a twisted-pair segment (that is, the distance between a port in the hub to a single-address network device such as a PC, server, or Ethernet switch) is 100 meters. Cabling and other wir- ing should be certified as Category 5 UTP or shielded twisted- pair(STP).

  • Page 36: The Diagnostic Port

    DCE-to-DTE connection requires a straight serial cable, not a null-modem cable. You can use the diagnostic port on a DFE-2600 series master hub to connect a VT100-compatible terminal or a computer running an ordinary terminal emulation program (such as the terminal program included with the Windows operating system).

  • Page 37: Hub To End-Station Connection

    Other SNMP management software will also work fine. A console device can only manage a DFE-2600 series hub if it is stacked with a DFE-2600 series master hub. Use either the on-board console pro- gram or an SNMP-based network management program to manage the stack.
  • Page 38 Dual-Speed Stackable Hubs User’s Guide connections require either a Category 5 UTP cable or an STP cable. These cables can be up to 100 meters long. Each Ethernet connection requires a Category 3 or better UTP cable and can also be up to 100 meters long. It is recommended that you use Category 5 cabling for all connections, in order to make it easier to transition all stations to 100Mbps.

  • Page 39: Hub-To-Hub Uplink

    Hub-to-Hub Uplink You can link two hubs or hub stacks to each other using any of the normal twisted-pair (1x - 24x) ports or the Uplink port. Linking hubs using normal twisted-pair ports requires crossover twisted-pair cables; linking using one normal twisted-pair port and the Uplink port requires an ordinary straight- through twisted-pair cable.
  • Page 40 205 meters. If the length of the longest hub to end-station connec- PORT TYPE Normal Hub or Switch Uplink Server (or PC) Normal Hub or Switch Uplink...

  • Page 41: Optional Module Connections

    Ethernet collision domain at the same time, counting as one repeater in each. Optional Module Connections There are three optional modules that may be added to any of the DFE-2600 series hubs. Each hub can accommodate two modules. Each of the modules offers a different additional network interface that allows for greater flexibil- ity in how these hubs may be used in a network.

  • Page 42: Module Installation

    Dual-Speed Stackable Hubs User’s Guide Module Installation The installation procedure for each module is the same. Additional informa- tion about each module is provided below. To install any of the modules: Locate one of the module slots in the hub DFE-260S module can only be installed in Slot 1 - the center slot.) Using a screwdriver, undo the two screws and remove the dust cover on the module slot.

  • Page 43: Switch Module (Dfe-260S)

    The Fiber Optic module provides a standard Fast Ethernet 100BASE-FX fiber optic connector. A fiber optic connection of this kind is particularly useful for creating a link between two DFE-2600 series hub stacks, placing them in separate collision domains. A link of this sort eliminates the need for an external switch to divide stacks into separate domains.

  • Page 44: Fast Ethernet Module (Dfe-260Tx)

    The Fast Ethernet module provides one additional twisted-pair Fast Ethernet connection. A twisted-pair connection of this kind is particularly useful for creating a link between two DFE-2600 series hub stacks, placing them in separate collision domains. A link of this sort eliminates the need for an ex- ternal switch to divide stacks into separate domains.

  • Page 45: Module

    The DIP switch may then be set to force the duplex mode into a particular state. After the DIP switch is set, the DFE-260TX will only op-...
  • Page 46 100Mbps in the duplex mode se- lected. The duplex mode DIP switch allows you to set the port to Full Duplex mode operation. Only the right-hand switch (number 2) is active. Use the DIP switch to set the duplex mode.

  • Page 47: Master Hub Setup And Management

    FE-2600 series master hubs”) provide an on-board console program that allows you to set up and control all DFE-2600 hubs stacked with it. This program can be accessed either with an ordinary terminal (or terminal emulator) or over the network using the TCP/IP TELNET protocol.

  • Page 48: Navigation And Conventions

    (i.e., Shift-Tab is not a functional combination). Up and Down arrow keys allow cursor movement between some fields. The Spacebar is a toggle switch for all variables that can be changed but wherein possible values are preset. The Delete and Backspace keys remove entered text as in most software packages.

  • Page 49: In-Band Setup Instructions

    BOOTP configuration table should contain the filename of a DFE-2600 series master hub boot configuration file accessible on your local TFTP (Trivial File Transfer Protocol) server. This file can be empty. For more detailed information about the boot configuration file con- tents, see Appendix C : Boot Configuration File of this manual.

  • Page 50: Backup Master Function

    (the backup master must have a different IP Address than the primary master). You are now ready to use your DFE-2600 series hub stack, and to manage it from a network management station on your network. See the Stack Man-...

  • Page 51: Segmenting Hubs

    installed. If a hub stack has two master units, the master unit powered-on first or the unit which is higher in the stack will manage the stack and be designated the rimary Master.” Master hubs in the series include a built-in contention algorithm which determines which hub will manage the stack and which will operate in standby mode.
  • Page 52 Hubs three and four are isolated from the main segment (collision domain one) using the hub's segmentation capability, putting them into their own isolated collision domains two and three respectively. A switch, bridge or router can be used to connect the three collision domains so that traffic can pass between them, yet keeping them isolated to reduce congestion on each segment.

  • Page 53: Logging In To The Hub Console

    Protocol to prevent temporary network loops Logging in to the Hub Console The DFE-2600 series master hubs support user-based security that allows you to prevent unauthorized users from accessing the hub or changing its settings. This means that before you can access the functions of the hub, you will need to first log into the hub, providing a password.
  • Page 54 There are two levels of user privilege: Super User and General User. The default user (D-Link) has Super User privileges. Some functions available to Super Users are not available to General Users. The main menu below is the...

  • Page 55: Changing Your Password

    DFE-2600 Stackable Hub - Main Menu System Configuration TCP/IP Parameters Configuration Network Monitoring Out-of-Band/Console Configuration User Account Change SNMP Trap Manager Configuration SNMP Manager Configuration System Reset Software Update Factory Reset NV-RAM to Default Value Changing Your Password To change your user password, follow these steps: Choose User Account Change from the main menu.

  • Page 56: Password

    Dual-Speed Stackable Hubs User’s Guide DFE-2600 Stackable Hub - User Account Change : Change Password User Name Old Password New password Confirm Password [ Type in your user name and press . Type in your old password and press .

  • Page 57: Setting Up The Master Hub

    Setting Up the Master Hub This section describes how to set the hub ous management options it supports. Note that the hub can be managed in- band or out-of-band, and either through the built-in console program, or us- ing an SNMP-management program such as D-View. TCP/IP Settings The hub needs to have an IP address assigned to it so that the network man- agement system or TELNET client can communicate with it over the...
  • Page 58 BOOTP server; if this option is set to BOOTP server to provide it with this information before using local settings. DFE-2600 Stackable Hub - TCP/IP Parameters Configuration Menu Interface #<1 Current Setting IP Address:...

  • Page 59: Out-Of-Band Management And Console Settings

    Out-of-Band Management and Console Settings You can use the Out-of-Band/Console Setting menu to choose whether to use the hub RS-232 serial port for console management or for out-of-band TCP/IP communication using SLIP, and to set the baud rate used for SLIP communications.

  • Page 60: Software Update On Boot

    Dual-Speed Stackable Hubs User’s Guide DFE-2600 Stackable Hub - Out-of-Band/Console Setting Menu Out-of-Band Setting Protocol: Baud Rate: Character Size: Stop Bit: System Restart Out-of-Band Baud Rate <9600 > Out-of-Band Dial Up Phone Number Current Serial Port Setting: System Restart Serial Port Setting

  • Page 61: Snmp Information

    BOOTP&TFTP mode, or if Use BOOTP to get IP after start up is en- abled, the pathname will be obtained from the BOOTP server. For more information about the DFE-2600 series master hub configuration file, see Appendix C, Boot Configuration File.
  • Page 62 DFE-2600 Stackable Hub - System Configuration Menu Mgmt Hardware Revision: Boot PROM Firmware Version: Ver. 2.22 Software Version: MAC Address: System Description: D-Link Corp. DFE-2600 Dual Speed Stackable Hub SNMP/ System Name System Location System Contact Console/Telnet Display Timeout in Minutes Rev. 01 Ver.

  • Page 63: Snmp Traps

    Traps are sent only to selected network management hosts. The hub allows up to four different hosts to receive traps from the system. DFE-2600 Stackable Hub - SNMP Trap Manager Setting Menu IP Address SNMP Community String The following trap parameters can be set: IP Address.

  • Page 64: Snmp Security (Community Names)

    The DFE-2600 series master hubs allow up to four different community names to be defined, and the access rights for each community can be sepa- rately set to either read only or read/write. The status for each string can be toggled to either valid or invalid.

  • Page 65: Adding And Deleting Users

    Access to the console program, whether using the diagnostic port or TELNET, is controlled by user names and passwords. Up to three user names can be defined. One user, named D-Link, is defined by default; this user name can be removed if desired. However, the console program will not let you delete the currently logged-in user to prevent you from accidentally deleting all users with Super User privileges –...

  • Page 66: Delete A User

    Enter the new user name, and assign an initial password. Determine whether the new user should have Super User or General User privi- leges. DFE-2600 Stackable Hub - User Account Change : Create New User User Name Password Confirm Password Access Level Choose SAVE and press ...

  • Page 67: Primary/Backup Master

    Toggle the Status field of the user you wish to remove to N/A. (To temporarily restrict a user that user Status to Inactive.) DFE-2600 Stackable Hub - User Account Change : Delete Users User Name admin

  • Page 68: Hub Stack Management

    Dual-Speed Stackable Hubs User’s Guide DFE-2600 Stackable Hub - Network Monitoring : Primary/Backup Master Menu Group ID Status Primary Master Hub Stack Management Several important hub parameters useful in the day-to-day management of the hub can be viewed and controlled using the Group Configuration and Port State menus.
  • Page 69 Group Port Capacity. This field shows the total number of network ports on the hub. Note: When modules with additional ports are in- stalled in DFE-2600 series hubs, the Port Capacity number will automatically adjust to reflect the added ports. software does not discriminate, any type of added or removed port will change the Port Capacity number.
  • Page 70 Toggling the field to solate” separates the hub Toggling the field to egmenting Hubs” earlier in this chapter for more information. DFE-2600 Stackable Hub - Network Monitoring : Group Configuration Menu Group ID (1-5) Group Serial Number: Group Position Number:...

  • Page 71: Controlling Individual Ports

    You can use PREV GROUP and NEXT GROUP to display information about another hub, or you can enter the hub the Group ID field. Controlling Individual Ports The Port State Menu, accessible from the Network Monitoring menu, allows you to view the status of individual ports and control their settings. The in- formation displayed includes: Group ID.

  • Page 72: Monitoring The Hub Stack

    Speed Capability. This field displays the port ting, Auto for auto-detect/correct, 100M for 100Mbps connections only, or 10M for 10Mbps connections only. This variable is user con- figurable. DFE-2600 Stackable Hub - Network Monitoring : Port State Menu Group ID(1-8) [1] Connector Type: UTP Port Status...

  • Page 73: Displaying Port And Group Statistics

    You can choose which to view from the Statistics menu, accessible under the Network Monitoring menu. DFE-2600 Stackable Hub - Network Monitoring : Statistics Menu The data categories provided for both port and group statistics are the same.
  • Page 74 Dual-Speed Stackable Hubs User’s Guide frame delimiter is valid but less than 2 bytes are received. This type of error may indicate noise on the line. Late Events. This statistic counts collisions that occur at or after the 64th byte (octet) in the frame. A high count here may indicate that delays on your Ethernet are too long, and you have either exceeded the repeater count or cable length specified in the Fast Ethernet stan- dard.
  • Page 75 Data Rate Mismatch counters. Readable Octs. This statistic counts the total number of bytes (oc- tets) included in valid (readable) frames. DFE-2600 Stackable Hub - Network Monitoring : Port Statistics Current Group ID: 1 Current Port ID: 9 Pkts...

  • Page 76: Displaying Segment Statistics

    Dual-Speed Stackable Hubs User’s Guide NOTE: The CLEAR COUNTER action only resets the counters for the statistics display; the underly- ing counters (i.e., MIB variables) are not cleared. Displaying Segment Statistics The hub stack collects network transmission statistics for each segment in the stack.
  • Page 77 DFE-2600 Stackable Hub - Network Monitoring : Segment Statistics Current Segment ID: 1 Pkts StatsPkts: 474996 BroadcastPkts: 284057 MulticastPkts: 6884 CRCAlignErrors: UndersizePkts: OversizePkts: Fragments: Jabbers: Collisions: PREV SEG Collisions. This statistic counts the number of collisions on the seg- ment.

  • Page 78: Node Tracking

    Node Tracking The Node Tracking screen displays the origination MAC addresses of pack- ets received by each node connected to the hub for the last 12 receives. DFE-2600 Stackable Hub - Network Monitoring : Node Tracking Information Group ID: 1 Port...

  • Page 79: Per-Port Intrusion Security

    Per-Port Intrusion Security Each port on this hub can have intrusion security enabled. Intrusion security prevents unauthorized individuals from accessing the network. Through the network management software, Ethernet addresses that represent authorized users can be assigned to each hub port. If a packet using a source address other than those used by authorized users is received by a port, the port is disabled and the network manager is notified.

  • Page 80: Resetting The Hub

    Dual-Speed Stackable Hubs User’s Guide DFE-2600 Stackable Hub - Network Monitoring : Bridge Information Hub ID Bridge Present Bridge Resetting the Hub You can use the console program to reset the hub stack, either doing a system reset (which restarts the hubs and is identical to powering them off and back...

  • Page 81: System Reset

    Choose System Reset from the main menu. The following confirma- tion message will appear: DFE-2600 Stackable Hub - System Reset Are you sure you want to reset? No Move the cursor to Yes to confirm the reset and press .
  • Page 82 Dual-Speed Stackable Hubs User’s Guide (including TCP/IP parameters, SNMP parameters, the enabled/disabled set- tings of ports, etc.) will be erased and restored to their factory default settings. Choose Factory Reset NVRAM to Default Value from the main menu. A confirmation message similar to that for the System Reset will appear.

  • Page 83: Eb Ased Etwork Anagement

    Introduction The content of this chapter pertains to intelligent (master) hub models only. These hubs have the ’ designation in their model numbers and include the DFE-2616i, DFE-2616ix, DFE-2624i and the DFE-2624ix. An embedded web-based (hypertext) interface allows users to manage the hub from anywhere on the network through a standard browser such as Net- scape Navigator/Communicator or Microsoft Internet Explorer.

  • Page 84: Getting Started

    IP address you have defined for the master hub. In the page that opens, click on the Login to DFE-2600 series Web-based Management button. This opens the main page in the management module.

  • Page 85: Configuration

    Clicking on the Hub ID indicator shows information about the hub and allows you to take it offline. Slots 1 & 2 Clicking on one of the Slot indicators, if it is occupied by a fiber optic or Fast Ethernet expansion module or console, shows a status and configuration window for that device.

  • Page 86: Prom

    Dual-Speed Stackable Hub Web-based Management User’s Guide Items in the Hub Information window are described as follows: System Description A description of the hub type. System OID The SNMP Object Identifier for this hub type. System Uptime The amount of time that the hub stack has been pow- ered on.
  • Page 87 Hardware Revision Revision number for the hub hardware. IP Interface The IP Interface screen displays information about each interface to the de- vice. The information is described as follows: IP Address The Internet address for the device. Subnet Mask The subnet mask determines the level of the subnet that the hub is on.

  • Page 88: Trap Receivers

    Dual-Speed Stackable Hub Web-based Management User’s Guide Trap Receivers Defining Trap Receivers allows network management stations to be notified when exceptional events happen. IP Address This is the address of the network station that should re- ceive traps from the hub stack. Community This is the SNMP community name to authenticate the receiving of traps.

  • Page 89: Software Download

    Community String A user-defined SNMP community name. Access Right The permitted access using the SNMP community name. Delete Click this to delete the community name. Software Download The Software Download screen allows you to cause an immediate update of the hub parameters and/ or firmware.
  • Page 90 Dual-Speed Stackable Hub Web-based Management User’s Guide The fields are described as follows: Software Update Mode Set to either network or out-of-band. Deter- mines whether the configuration file should be obtained through the Ethernet network or through the console port. Software Update Control download its configuration file the next time the Hub is booted.

  • Page 91: Performance

    Performance Hub performance is measured with packet statistics and it utilization in the network. Clicking on the Performance button and then choosing either the Statistics or Utilization options on the left causes a representation of your hub to be shown (see example below). Click on any feature of the representation to see Statistics or Utilization figures about it.
  • Page 92 Dual-Speed Stackable Hub Web-based Management User’s Guide Statistics collected by the Hub are described as follows: StatsPkts (Pkts) Counts valid frames. BroadcastPkts (Pkts) stations on the network. MulticastPkts (Pkts) Ethernet addresses. CRC AlignErrors (Pkts) end on a byte (octet) boundary. UndersizePkts (Pkts) octets long (excluding framing bits, but including FCS octets) and were otherwise well formed.
  • Page 93 OversizePkts (Pkts) 1518 octets (excluding framing bits, but including FCS octets) and were otherwise well formed. Fragments (Pkts) tets in length (excluding framing bits but including FCS octets) and had either a bad Frame Check Sequence (FCS) with an integral number of octets (FCS Error) or a bad FCS with a non-integral number of octets (Alignment Errors).

  • Page 94: Fault

    Dual-Speed Stackable Hub Web-based Management User’s Guide Utilization A network segment can be monitored using the Utilization display. Each hub is divided into two segments; 100Mbps (segment 1) and the 10Mbps (seg- ment 2). When you choose a segment to observe, a graph appears showing the usage of that segment as a percentage of the total bandwidth (see example below).

  • Page 95: Port Configuration

    On the stack, simply click on any item you wish to configure, including an individual port, a hub (by clicking on the Hub ID number), the console and the switch (see the example below). Port Configuration Clicking on any twisted-pair port will show the current configuration infor- mation of the port.
  • Page 96 Dual-Speed Stackable Hub Web-based Management User’s Guide Port Type This is a is UTP port which supports both UTP and STP cabling. Link Status Indicates whether the port is online and working (link up) or not (link down). Auto Partition Status auto-partitioned and taken offline or not.
  • Page 97 Generate Trap When Link State Change the port will send a trap if it Generate Trap When Speed State Change the port will send a trap if it Group (Hub) Configuration Clicking on a Hub ID number will show the current configuration informa- tion for that Hub.
  • Page 98 Dual-Speed Stackable Hub Web-based Management User’s Guide Group Role The role of the Hub within the stack, either pri- mary-master, backup-master, or slave. Hardware Revision in this Hub. Status Tells whether the Hub is up (online and working) or down. Last Operation Status Change Hub.
  • Page 99 The information is described as follows: Current Serial Port Setting sole or Out-of-band. System Restart Serial Port Setting or Out-of-band management upon reboot. Baud Rate Defined in cps (characters per second), it shows the con- nection speed between the Hub and the console. Character Size This is the number of bits in the byte unit of the in- formation exchange between Hub and console manager.
  • Page 100 Dual-Speed Stackable Hub Web-based Management User’s Guide Protocol This is the protocol used by the Hub for out-of-band (dial-up) management. System Restart Out-of-Band Baud Rate on the Hub. Out-of-Band Dial Up Phone Number ber here for reference. Module Port (Slots 1&2) Configuration When slots 1 or 2 are occupied by either a DFE-260FX Fiber Optic Module (shown on the graphic representation of the hub as SwFx) or a DFE-260TX Fast Ethernet Module (SwTp), clicking on the words SwFx or SwTp causes...

  • Page 101: User

    Administration State abled or disabled. Reset Doing a remote reset is equivalent to turning the hub off and on again. All parameters are returned to the values stored in EEPROM. Click RESET to reset the Hub. User The User menu allows you to monitor and configure a number of settings for individual ports.

  • Page 102: Receive

    Dual-Speed Stackable Hub Web-based Management User’s Guide Source Address Shows the source Ethernet address of the frame as received by the hub. Time Shows the amount of time since the last packet was transmitted on the port in terms of System Uptime (SysUpTime). Intrusion To display this screen, click User, then Intrusion.
  • Page 103 Variables in the above window include: Hub ID Select a Hub from the hub stack. Port Port ID for which Intrusion is enabled. Authorized MAC Address station allowed to use this port. Detected MAC Address last frame received by the port. Attribute This indicates MAC address type, always.

  • Page 104: Rmon

    Dual-Speed Stackable Hub Web-based Management User’s Guide Back-Up Port A Back-Up Port is a linked-pair consisting of a master port and a back-up port. The back-up port is immediately enabled should the master port fail. If the master port returns (from failure), the back-up link traffic is switched back to the master link.
  • Page 105 The features of RMON are organized into cohesive collections simply called groups. These groups are the basic unit of conformance. The D-Link devices utilize four key RMON groups. These four groups are described in the table below. Group Name...
  • Page 106 Dual-Speed Stackable Hub Web-based Management User’s Guide Event RMON is an industry accepted standard for performance monitoring of re- mote LANs. If the RMON agent supports the key groups, it can be a powerful tool to detect potential network performance degradation before it gets out of control.
  • Page 107 The above Statistics table must contain at least one entry to begin keeping statistics. To add a new entry into the Statistics group, simply fill in the 3 fields - Index, Data Source and Owner, and then click on the Add button (see explanations below).
  • Page 108 Dual-Speed Stackable Hub Web-based Management User’s Guide Statistics Group Index Table The Statistics Group Index Table is a collection of statistics kept for a par- ticular Ethernet interface. It consists of 17 statistic counters and shows the absolute value of the count. The absolute value represents the current count since the initiation of the data source or last reset, at which the counter begins at zero.
  • Page 109 Broadcast Packets were directed to the broadcast address. Note that this does not include multicast packets. Multicast Packets The total number of good packets received that were directed to a multicast address. Note that this number does not include packets directed to the broadcast address. CRCAlign Errors The total number of packets received that had a length (excluding framing bits, but including FCS octets) of between...
  • Page 110 Dual-Speed Stackable Hub Web-based Management User’s Guide 64 Octets The total number of packets (including bad packets) re- ceived that were 64 octets in length (excluding framing bits but including FCS octets). 65-127 Octets The total number of packets (including bad packets) received that were between 65 and 127 octets in length inclusive (ex- cluding framing bits but including FCS octets).
  • Page 111 To begin keeping device history Add a new data source entry by filling in the 5 boxes at the bottom of the window and clicking Add. It is sufficient to click OK/ Cancel (as appropriate) or edit any of the five fields displayed: Index (1..65535) than numerical position in the Control Table, there is no benefit or dis-...
  • Page 112 Dual-Speed Stackable Hub Web-based Management User’s Guide Interval (1..3600) The interval in seconds over which the data is sam- pled for each bucket. This interval can be set to any number of seconds between 1 and 3600 (1 hour). Other functions in the History Control Table are: Delete Click the Delete button to remove an entry.
  • Page 113 val. Note that this number is not necessarily the number of packets dropped, it is just the number of times this condition has been detected. Octets The total number of octets of data (including those in bad pack- ets) received on the network (excluding framing bits but including FCS octets).
  • Page 114 Dual-Speed Stackable Hub Web-based Management User’s Guide Jabber The number of packets received during this sampling interval that were longer than 1518 octets (excluding framing bits but including FCS octets), and had either a bad Frame Check Sequence (FCS) with an integral number of octets (FCS Error) or a bad FCS with a non-integral number of octets (Alignment Error).
  • Page 115 Delete Click the Delete button to remove an entry. Following are descriptions for the categories shown in the Alarm Table: Owner The entity that configured the entry and is therefore using the resources assigned to it. Index An index uniquely identifying an entry in the alarm table. Each such entry defines a diagnostic sample at a particular interval.
  • Page 116 Dual-Speed Stackable Hub Web-based Management User’s Guide Rising Threshold current sampled value is greater than or equal to this threshold, and the value at the last sampling interval was less than this threshold, a single event will be generated. After a rising event is generated, another such event will not be generated until the sampled value falls below this threshold and reaches the Alarm Falling Threshold.
  • Page 117 Index: This value uniquely identifies the Alarm entry. Other than numerical position in the Alarm Table, there is no benefit or disadvan- tage in choosing a specific index value. Owner The entity that configured the entry and is therefore using the resources assigned to it.
  • Page 118 Dual-Speed Stackable Hub Web-based Management User’s Guide Sample Type calculating the value to be compared against the thresholds. If the value of this object is Absolute, the value of the selected variable will be com- pared directly with the thresholds at the end of the sampling interval. If the value of this object is Delta, the value of the selected variable at the last sample will be subtracted from the current value, and the difference compared with the thresholds.
  • Page 119 same as an Event index number identified in the Event group. If there is no corresponding entry in the Event Table, then no association exists and no event will be generated. In particular, if this value is zero, no associ- ated event will be generated, as zero is not a valid event index number.
  • Page 120 Dual-Speed Stackable Hub Web-based Management User’s Guide The event variables are described below: Index An index number that uniquely identifies an entry in the event table. Each such entry defines one event that is to be generated when the appropriate conditions occur. Owner The entity that configured this entry and is therefore using the resources assigned to it.
  • Page 121 View To view the event log, click the View button. Log entries are organized in a table (shown below). Log Table for Event Index The Event Log Table is generated and maintained by an Event entry in the Event Table and can not be manipulated by any other entity. Log entries are described by the following: Index An index number that uniquely identifies an event.

  • Page 123: Cables And Connectors

    100BASE-TX Ethernet Cable and Connectors Cable characteristics: 0.4 to 0.6 mm (22 to 26 AWG) 4-pair (only two pairs/four wires are used for 100BASE-TX); Category 5 un- shielded twisted-pair or EIA/TIA-568 compliant, 100-ohm shielded twisted-pair Maximum segment length: 100 meters Maximum network diameter: 205 meters Connectors: RJ-45 Cables and Connectors...

  • Page 124: Crossover Cables

    Dual-Speed Stackable Hub Web-based Management User’s Guide Crossover Cables When cascading or connecting the hub to another switch, bridge, or hub through the UTP port, a modified crossover cable is necessary. With a cross- over cable, two pairs of wires are switched at one connector end. Carry out the following steps to create a customized, crossover twisted-pair cable: Leave one end of the cable as is, with the RJ-45 connector intact.

  • Page 125: Rs-232 (Db9) Pin Specification

    Diagnostic Port Specifications This section provides supplemental information that concerns diagnostic port connections. Information on RS-232 DB-25 connectors is provided for con- nections with 25-pin console devices. RS-232 (DB9) Pin Specification The RS-232 serial port of the hub uses a 9-pin female connector. The port can be connected to a VT-100 terminal, a PC, or a workstation emulating a VT-100 terminal.

  • Page 126: Cables And Connectors

    Dual-Speed Stackable Hub Web-based Management User’s Guide C o n so le P o rt (D C E , D B -9 ) D C D (1 ) R X D (2 ) T xD (3 ) D T R (4 ) S G (5 ) D S R (6 ) R T S (7 )

  • Page 127: B Oot C Onfiguration F Ile

    DFE-2600 series master hubs support a powerful configuration file which allows many of the hub stack centralized server. When the master hub starts up, it can be configured to read its configuration file from the server using the TFTP protocol. This can make it easier to manage a large number of hub stacks, since all of the con- figuration parameters for all of the hubs can be managed in a single place.
  • Page 128 This command may be used to update the hub version is available from D-Link. ip-netmask mask Uses mask as the network mask for the local network. For a Class C network with no subnetting, the netmask should be 255.255.255.0.
  • Page 129 auth-trap enable/disable Enables or disables authentication failure traps for invalid SNMP com- munity names. The argument for this field is either enable or disable. clear-SNMP-comm-table Clears the hub SNMP community name table. SNMP-community community permissions Adds a community to the hub list of SNMP communities, with access permissions.
  • Page 130 Dual-Speed Stackable Hub Web-based Management User’s Guide Sets the hub node age timer to n seconds. Node aging is used with the security option to determine how long to keep entries in the node tracking table. Boot Configuration File...

  • Page 131: Specifications

    PECIFICATIONS General Standards: IEEE 802.3 10BASE-T Ethernet repeater, IEEE 802.3u 100BASE-TX Fast Ethernet repeater (Class II); ANSI X3T9.5 Twisted-Pair Transceiver Topology: Star Protocol: CSMA/CD Network Data Transfer Rate: Fast Ethernet, 100Mbps; Ethernet, 10Mbps Number of Ports: 16 (DFE-2616i / DFE-2616ix / DFE-2616 / DFE-2616x) or 24 (DFE-2624i / DFE-2624ix / DFE-2624 / DFE-2624x) 10BASE-T / 100BASE-TX ports Network Media: Ethernet: Category 3 or better UTP cable, 100m maxi-...

  • Page 132: Hub-To-Hub Cascading

    Dual-Speed Stackable Hub Web-based Management User’s Guide Hub-to-Hub Cascading Number of Daisy-Chained Hubs: Maximum of 5 hubs per stack Daisy-Chain Port: MiniSCSI-type connector Daisy-Chain Cable: SCSI-type cable (supplied) LED Indicators Hub Status: Power, 10Mbps collision, 100Mbps collision, 10Mbps utiliza- tion, 100Mbps utilization, module link Port Status (per port): Link/Activity, Auto Partition/Manual Partition, Speed (10/100Mbps) Environmental and Physical...
  • Page 133 Dimensions: 441mm 237mm 55mm (1.25 U height), 19-inch rack-mountable Weight: 3.87kg (8.53 lbs.) Operating Temperature: 0 to 40 C Storage Temperature: –25 to 55 C Humidity: 5% to 95% non-condensing DC Fan: 40mm 40mm Emissions: FCC Class A, CE, VCCI Class A, C-Tick Safety: UL, CSA, CE Mark, T/GS Specifications DFE-2624i =...

  • Page 135: Glossary

    Please note that the terms in this glossary are defined according to their usage in this document and as part of the field of computer networking. Any meaning or usage outside of these specific areas may not be included and is not necessarily implied.
  • Page 136 (and unreadable) transmission. See SMA/CD.” A section of a network isolated from other sec- tions by a switch, bridge, or hub that detects and resolves collisions locally so that there is less im- pact on the entire network. ize” of...
  • Page 137 Carrier Sense Multiple Access with Collision De- tection; a network communications protocol in which each transmission source (i.e., station, server, switch, etc.) monitors the main data chan- nel for traffic before and during transmission, postponing transmission when the data channel is in use.
  • Page 138 Dual-Speed Stackable Hub Web-based Management User’s Guide IEEE In-band Jabber Mbps Institute of Electrical and Electronics Engineers, an accredited professional group of scientists and engineers who help set standards for LAN com- munications technology. Communications with a network device using the network medium itself.

  • Page 139: Tcp

    Out-of-band Packet Preamble Repeater Segment SNMP TCP/IP Glossary Communications with a network device using some medium other than the network itself. An addressed segment of data transmitted on a network. Data bits at the beginning of each block of data, used for synchronization.

  • Page 140: Telnet

    Dual-Speed Stackable Hub Web-based Management User’s Guide Telnet TFTP Trap Twisted-pair UTP/STP 100BASE-TX... xii, 1, 2, 4, 19, 113, 121, 125 100Mbps ...1, 2, 3, 10, 16, 17, 23, 26, 31, 61, 65, 121, 122, 125, 128 10BASE-T...1, 2, 19, 23, 121, 125 10Mbps ...1, 2, 3, 10, 16, 17, 23, 31, 61, 121, 122, 125, 127 backup master...3, 39 BOOTP ...37, 46, 48, 49, 126...
  • Page 141 25, 35, 45, 54, 70 conventions ...36 crossover ...9, 28, 33, 114 CSMA/CD...121, 126, 127 diagnostic port...20, 24, 25, 35, 45, 54, 115 DIP switch...33, 34 disable ...3 D-View...7, 19, 25, 35, 39, 45, 49 EIA...11, 12, 113 errors ...18, 64, 65 Fast Ethernet ...
  • Page 142 MAC address...56 master ... xii, 2, 3, 7, 10, 11, 17, 19, 20, 24, 25, 31, 35, 36, 37, 38, 39, 41, 49, 53, 56, 58, 59, 70, 71, 117 MII ...4 module...2, 3, 10, 17, 30, 31, 32, 33, 34, 122 Navigation...36 network management...3, 19, 25, 35, 37, 38, 45, 50, 51, 52, 53, 69, 130, B-2 OUT ...vi, 10, 21...
  • Page 143 TFTP ...37, 38, 48, 49, 117, 118, 130 Topology ...121 Uplink ...4, 9, 27, 28 utilization ...3, 17, 122 UTP...23, 26, 114, 121, 130, B-2 VCCI ...vi, 123 VT-100...24, 25, 38, 115...
  • Page 145 2F, No. 233-2 Pao-Chiao Rd, Hsin-Tien, Taipei, Taiwan, R.O.C. TEL: 886-2-2916-1600 FAX: 886-2-2914-6299 WEB: www.dlink.com.tw U.K. D-LINK (EUROPE) LTD. D-Link House, 6 Garland Road, Stanmore, Middlesex HA7 1DP U.K. TEL: 44-181-235-5555 FAX: 44-181-235-5500 WEB: www.dlink.co.uk E-MAIL: [email protected] U.S.A. D-LINK SYSTEMS, INC.

  • Page 146: Registration Card

    3. What network protocol(s) does your organization use ? †XNS/IPX †TCP/IP †DECnet †Other_____________________________ 4. What network operating system(s) does your organization use ? †D-Link LANsmart †Novell NetWare †NetWare Lite †SCO Unix/Xenix †PC NFS †3Com 3+Open †Banyan Vines †DECnet Pathwork †Windows NT †Windows NTAS †Windows '95 †Other__________________________________________ 5.

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