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Introduction

3

♦

Sixteen (DFE-2616, DFE-2616x, DFE-2616i, DFE-2616ix) or
twenty-four (DFE-2624, DFE-2624x, DFE-2624i, DFE-2624ix)
NWay RJ-45 ports for connecting stations to the network.

♦

Full hub stack and network management provided via an SNMP
management 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.

♦

LED indicators for power, collisions, link, network activity, parti-
tioning status, disable, operating speed (10 or 100Mbps) and network
utilization.

♦

Digital hub ID number front panel display.

♦

Auto-partition protection.

♦

Data collision detection and handling.

♦

Preamble regeneration, signal retiming.

♦

Two proprietary daisy-chain ports for cascading up to five hubs to
form one logical hub; management provided via a master hub.

♦

Standby backup master capability when two master model hubs are
present within a single stack.

♦

Uplink port allows easy linking of two Fast Ethernet hub stacks to
further expand your network.

♦

Standard-size (19” , 1.25U height), rack mountable

♦

Built-in, removable power supply, replaceable without opening the
hub. Power supply is easily removed and replaced. Automatic volt-

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Содержание DFE-2600 Series

Страница 1: ...DFE 2600 Series Ethernet Fast Ethernet Dual Speed Managed Unmanaged Stackable Hubs User s Guide Rev 01 March 1998 6DFE2600M 01 Printed In Taiwan RECYCLABLE ...

Страница 2: ...ich am Geräten befinden sind zu beachten 12 Wird das Gerät über einen längeren Zeitraum nicht benutzt sollten Sie es vom Stromnetz trennen Somit wird im Falle einer Überspannung eine Beschädigung vermieden 13 Durch die Lüftungsöffnungen dürfen niemals Gegenstände oder Flüssigkeiten in das Gerät gelangen Dies könnte einen Brand bzw Elektrischen Schlag auslösen 14 Öffnen Sie niemals das Gerät Das Ge...

Страница 3: ...ned to D Link then a proof of purchase such as a copy of the dated purchase invoice must be provided If Purchaser s circumstances require special handling of warranty correction then at the time of requesting RMA number Purchaser may also propose special procedure as may be suitable to the case After an RMA number is issued the defective product must be packaged securely in the original or other s...

Страница 4: ...refer ence materials D Link makes no warranty that its software products will work in combination with any hardware or any application or system platform software product provided by any third party excepting only such products as are expressly represented in D Link s applicable product documentation as being compati ble D Link s obligation under this warranty shall be a reasonable effort to provi...

Страница 5: ...CT IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY THE CUSTOMER S OR ANY THIRD PERSON S MISUSE NEGLECT IMPROPER INSTALLATION OR TESTING UNAUTHORIZED ATTEMPTS TO REPAIR OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE OR BY ACCIDENT FIRE LIGHTNING OR OTHER HAZARD 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 O...

Страница 6: ...with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equip ment generates uses and can radiate radio frequency energy and if not installed and used in accordance with this user s guide may cause harmful interference to ...

Страница 7: ...roduct Description 1 Product Features 2 Dual Speed Ethernet Hub 4 Technology Overview 4 100BASE TX Technology Overview 5 100Mbps Fast Ethernet Introduction 5 Cables and Connectors 6 Topology 6 Network Diameter 7 Hub Types 7 CHAPTER 2 UNPACKING AND SETUP 9 Unpacking 9 Identifying External Components 10 Front Panel 10 Rear Panel 11 Installing the Hub 13 ...

Страница 8: ...ole Port Indicator CON 21 CHAPTER 4 MAKING CONNECTIONS 23 Hub Cascading Building a Stack 23 Connectivity Rules 25 The Diagnostic Port 26 Diagnostic Port Connection 26 Hub to End Station Connection 27 Hub to Hub Uplink 29 Optional Module Connections 31 Module Installation 31 Switch Module DFE 260S 32 Fiber Optic Module DFE 260FX 33 Fast Ethernet Module DFE 260TX 34 CHAPTER 5 MASTER HUB SETUP AND MA...

Страница 9: ...leting Users 54 Primary Backup Master 56 Hub Stack Management 57 Controlling Hubs in the Hub Stack 57 Controlling Individual Ports 60 Monitoring the Hub Stack 61 Displaying Port and Group Statistics 62 Displaying Segment Statistics 65 Node Tracking 67 Per Port Intrusion Security 68 Bridge Information 68 Resetting the Hub 69 System Reset 70 Factory Reset 70 APPENDIX A CABLES AND CONNECTORS 73 100BA...

Страница 10: ...NDIX B BOOT CONFIGURATION FILE 77 APPENDIX C SPECIFICATIONS 81 General 81 Hub to Hub Cascading 82 LED Indicators 82 Environmental and Physical 82 APPENDIX D GLOSSARY 85 INDEX 93 D LINK INTERNATIONAL OFFICE CONTACTS 97 WARRANTY REGISTRATION CARD 99 ...

Страница 11: ...d hubs capable of managing an entire hub stack All ix models have both features The model numbers also indicate how many ports a particular hub has thus 2616 hubs have 16 ports and 2624 hubs have 24 ports Conventions References in this manual to the DFE 2616 DFE 2616x DFE 2624 DFE 2624x DFE 2616i DFE 2616ix DFE 2624i and DFE 2624ix hubs are frequently written simply as hub or hubs where the text a...

Страница 12: ...e indicators is essential to effectively using the hub Chapter 4 Making Connections Provides information on connect ing to the hub s twisted pair and console ports stacking hubs and linking with other 100BASE TX hubs Chapter 5 Master Hub Setup and Management Provides informa tion on using the management agent built into master models in the 2600 series Appendix A Cables and Connectors Provides spe...

Страница 13: ...con nections twisted pair Ethernet operating at 10 megabits per second or IEEE 802 3u 100BASE TX connections twisted pair Fast Ethernet oper ating at 100 megabits per second All of the twisted pair ports support NWay auto negotiation allowing the hub to automatically detect the speed of a network connection This means you can connect all of your Ethernet and Fast Ethernet hosts to a DFE 2600 serie...

Страница 14: ...modules are both in the primary master hub segment Other add in modules are also available providing switched 100BASE TX or switched 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 T...

Страница 15: ...ns link network activity parti tioning status disable operating speed 10 or 100Mbps and network utilization Digital hub ID number front panel display Auto partition protection Data collision detection and handling Preamble regeneration signal retiming Two proprietary daisy chain ports for cascading up to five hubs to form one logical hub management provided via a master hub Standby backup master c...

Страница 16: ...logies especially when network hosts are being gradually migrated to new Fast Ethernet connections 10Mbps Repeater 100Mbps Repeater NWay Detection RJ 45 Ports 100Mbps Ethernet Station 100Mbps Ethernet Station 10Mbps Ethernet Station 10Mbps Ethernet Station 100Mbps Ethernet Station A dual speed hub is actually two repeaters in one enclosure The 10Mbps repeater receives Ethernet transmissions from a...

Страница 17: ...come increasingly powerful with the capability to accommodate very sophisticated uses such as multimedia applications video conferencing and CAD CAM To utilize these technologically ad vanced applications more efficiently there is also a growing demand for faster networks that can handle heavy network traffic Recognizing this need for greater bandwidth and lower latency a variety of technologies s...

Страница 18: ...y A Fast Ethernet workgroup is configured in a star topology and is built around a maximum of two repeaters Each workgroup forms a separate LAN also known as a segment or collision domain and these workgroups can be easily interconnected through switches bridges or routers to form one LAN large enough to encompass a high rise building or campus envi ronment Recent innovations in LAN hub technology...

Страница 19: ...one port to the other ports by first translat ing them to digital signals and then retranslating them back to line signals These translations are necessary when connecting various network media to the same collision domain such as when combining two wire pair 100BASE TX media with four wire pair 100BASE T4 media Only one Class I hub can exist within the same collision domain thus this type of hub ...

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Страница 21: ... 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 s electrical power con nections One daisy chain cable Four rubber feet to be used for shock cushioning Six screws and two mounting brackets D View module diskette master models only This User s Guide ...

Страница 22: ...ifying 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 feature The indicator panel is described in detail in the next chapter Front Panel DFE 2624i DFE 2624ix Front Panel DFE 2624 DFE 2624x Front Panel DFE 2616i DFE 2616ix Front Panel DFE 2616 DFE 2616x Front Panel ...

Страница 23: ...onnect 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 74 Uplink Port The Uplink port is an MDI port which means you can connect the hub or hub stack to another device with MDI X ports using an ordin...

Страница 24: ... cascade of five hubs can be created in this way The first and last hubs in the stack use only one of the daisy chain ports while the others use both Daisy Chain OUT Port Works in conjunction with the Daisy Chain IN Port see above Con nect this port to the Daisy Chain IN Port of the next hub in the stack usually placed immediately below it using the enclosed daisy chain cable Diagnostic Console Po...

Страница 25: ...at least 10cm of space at the front and rear of the hub for ventilation Install the hub on a sturdy level surface that can support its weight or in an EIA standard size equipment rack For information on rack installation see the next section 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...

Страница 26: ...Dual Speed Stackable Hubs User s Guide Unpacking and Setup 14 Then use screws provided with the equipment rack to mount each hub in the rack ...

Страница 27: ...r of the hub 3 Using a Phillips screwdriver remove the screws securing the power supply to release the unit 4 Remove the power supply by sliding it out the rear of the chassis Do not plug in the power supply when it is outside the chassis Doing so could cause personal injury or damage to the power supply 5 Slide the replacement power supply into the chassis engaging the connector carefully 6 Attac...

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Страница 29: ...fore connecting network devices to the hub take a few minutes to look over this section and familiarize yourself with the front panel LED indica tors of your dual speed hub depicted below DFE 2624i DFE 2624ix Indicator Panel DFE 2616i DFE 2616ix Indicator Panel ...

Страница 30: ... power otherwise it is off Collision Indicators COL10 and COL100 These indicators indicate data collisions on the respective 10Mbps Ethernet or 100Mbps Fast Ethernet segments of the hub If several hubs are stacked or linked together all of them should detect and indi cate the same collision since collisions span the entire network segment Whenever a collision is detected the respective COL indi ca...

Страница 31: ... ID number which is then added to each hub s factory serial number encoded on an EEPROM memory chip The hub ID is then permanently assigned In an unmanaged stack all slave models all IDs will read 0 and no permanent ID assignement is made In a stack with a master intelli gent model the master hub will detect the other hubs in the stack and automatically assign ID numbers which are then permanently...

Страница 32: ...Receive blinking green When information is received on a port its indicator will blink off briefly Upon reception the data will be transmitted to all other con nected ports Auto partition blinking amber The indicator of a port blinks amber when the port is automatically par titioned due to an abnormal network condition The hub will temporarily partition a port when too many line errors or too many...

Страница 33: ... Indicator Master models only This indicator comes on when the SNMP agent of a DFE 2600 series mas ter 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 The SNMP LED of the Backup Master will remain off at all times Port Speed Indicators There is also a port speed indicator for each of the twiste...

Страница 34: ...DFE 2600 series master hub must be connected to the console s RS 232 serial port using a normal serial cable OR 2 The console computer is on line and connected to the on board con sole program either through terminal emulation or a TELNET session Refer to Chapter 4 Making Connections for directions on establishing a connection with the diagnostic port and Chapter 5 Master Hub Setup and Management ...

Страница 35: ...s configuration the interconnected hubs constitute a single logical unit providing a maximum of 120 twisted pair ports Use the provided daisy chain cable to connect the Daisy Chain OUT port on the rear panel of one hub to the Daisy Chain IN port on the hub below it as shown in the figure below Repeat this procedure for each hub to be included in the stack Each time a new hub is added to the stack ...

Страница 36: ...s User s Guide Making Connections 24 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 ...

Страница 37: ...int to point link segments e g 10BASE T or 10BASE FL while the remaining segments may be populated mixing seg ments e g 10BASE 2 or 10BASE 5 Fast Ethernet 100Mbps networks have the following 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 an...

Страница 38: ...th an RS 232 serial port DTE on a PC acting as a con sole all you need is a straight serial cable as shown in below Note that a 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 con nect a VT100 compatible terminal or a computer running an ordinary terminal emulation program such as the terminal program ...

Страница 39: ...anagement or D View included with DFE 2600 series master hubs for in band or out of band management Other SNMP management software will also work fine A console device can only manage a DFE 2600 series hub if it is cas caded to a DFE 2600 series master hub Use either the on board console program or an SNMP based network management program to manage the stack Hub to End Station Connection After ins...

Страница 40: ...nsition all stations to 100Mbps You can connect any combination of PCs servers and other single address network devices to the twisted pair ports using straight through twisted pair cables These cables should not be crossed over The following figure il lustrates the pin assignments for a straight through cable When connecting a PC or a server the system being connected should have an Ethernet or F...

Страница 41: ...inary straight through twisted pair cable The Uplink port is shared with Port 1 and you should not use both Port 1 and the Uplink port at the same time When connecting two hubs or hub stacks in this fashion the maximum distance between any two end stations in a collision domain is 205 meters If each link between the hub and an end station is 100 meters then the hub to hub connection is limited to ...

Страница 42: ...b Non Uplink Crossover X Uplink Straight Through Server or PC Straight Through Uplink Switch or Hub Non Uplink Straight Through Uplink Crossover X Server or PC Crossover X A crossover cable is a straight through twisted pair cable in which the wires have been crossed The figure below shows the pin assignments for an Ethernet or Fast Ethernet crossover cable NOTE The first twisted pair port Port 1 ...

Страница 43: ...ettings and indicators Module Installation The installation procedure for each module is the same Additional infor mation about each module is provided below To install any of the modules 1 Locate one of the module slots in the hub s rear panel Note that the DFE 260S module can only be installed in Slot 1 the center slot 2 Using a screwdriver undo the two screws and remove the dust cover on the mo...

Страница 44: ... DFE 2624ix to allow 10Mbps and 100Mbps stations to intercommunicate Note that the DFE 260S module can only be installed in Slot 1 the center slot Also the presence of switch modules and their operational status can be viewed on the Network Monitoring Bridge Information screen NOTE In a stack containing a DFE 2616i DFE 2624i DFE 2616ix or DFE 2624ix intelligent master hub more than one DFE 260S sw...

Страница 45: ... an external switch to divide stacks into separate domains Dividing the stacks into separate collision domains overcomes the Fast Ethernet two repeater limitation and effectively doubles overall bandwidth The Fiber Optic module includes the following LED indicators Power Tx This LED is lit when the hub is on and blinks when pack ets are being transmitted by the module Link Rx This LED is lit when ...

Страница 46: ...placing them in separate collision domains A link of this sort eliminates the need for an external switch to divide stacks into separate domains Dividing the stacks into separate collision domains overcomes the Fast Ethernet two repeater limitation and effectively doubles overall bandwidth The Fast Ethernet module uses a MDI X connector not a straight MDI and therefore a crossover cable must be us...

Страница 47: ...NWay UTP port once the hub is powered on it will automatically detect the duplex and speed modes of any device connected to it 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 erate at 100Mbps in the duplex mode selected The duplex mode DIP switch allows you to set the port to Full Duplex mode operation Only the ...

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Страница 49: ...tocol You can use this program to perform many basic network management functions The console program also allows you to prepare the hub for management using D View or another SNMP based network management system This chapter describes how to use the console program to access the hub change its settings and monitor its operation Note that if you want to manage the hub in band you need to follow th...

Страница 50: ... 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 Pressing Ctrl r refreshes the current screen Screen Conventions Fields that cannot be changed are preceded by a colon Toggle changed fields are surrounded by angle brackets Variables with values that must be keyed in are surrounded by square brack...

Страница 51: ...dress Using BOOTP If your Fast Ethernet network has a BOOTP BOOTstrap Protocol server you need only add the hub s Ethernet MAC address which is printed on a sticker on the bottom of the hub or which you can determine using the master hub console interface IP address subnet mask and boot filename to your BOOTP server s configuration tables The boot filename field of the hub s BOOTP configuration sh...

Страница 52: ...rom a network management station on your network See the Stack Man agement User s Guide for more information about how to manage the stack using the D View Network Management Program Backup Master Function Within a DFE 2600 series hub stack in addition to a master hub for man agement purposes a standby backup master can also be installed If a hub stack has two master units the master unit powered ...

Страница 53: ...a way to segment hubs from the stack into their own collision domains Segmenting hubs can be accomplished with a simple management command and does not require any hardware or wiring changes Though the hubs continue to be cascaded together and are managed as a single unit each hub can either be a part of the collision domain of the rest of the stack or can be separated into its own network segment...

Страница 54: ...ision domains so that traffic can pass between them yet keeping them isolated to reduce conges tion on each segment For information about segmenting hubs using the network management module for the hub see the Hub Stack Management Controlling Hubs in the Hub Stack section later in this chapter NOTE Hub segmentation is controlled by the master hub When the master hub completes its ini tialization i...

Страница 55: ...rd This section tells how to log onto the hub and how to change your password Logging In When you first connect to the hub it will display the login screen DFE 2600 Dual speed Stackable Hub Telnet Remote Management Ver0 Copyright C 1995 96 D Link Corp User Name Password OK CLOSE CONNECTION To log in complete these steps 1 Type in your user name and press Enter 2 Type in your password and press Ent...

Страница 56: ...er privileges Some functions available to Super Users are not available to General Users The main menu below is the menu for Super Users 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...

Страница 57: ... user name and press Enter 4 Type in your old password and press Enter 5 Type in the new password you have chosen and press Enter Type in the same new password again in the next blank space to verify what you typed 6 Choose SAVE to put the new password into effect 7 Choose EXIT to exit this screen This method can also be used by a Super User to change another user s password ...

Страница 58: ...nterface used for in band communication and the SLIP interface used through the diagnostic port for out of band communi cation Note if you need to set an IP address so that you can access the hub con sole through a network see the first section of this chapter Saved changes to any of the fields on this menu take effect the next time the system is restarted Fields that can be set include Interface ...

Страница 59: ...ot want the hub to be accessible outside your local network you can leave this field blank Send BOOTP Request Upon Power Up This parameter deter mines whether or not the hub should send out a BOOTP request when it is powered up The BOOTP protocol allows IP addresses network masks and default gateways to be assigned from a central BOOTP server if this option is set to yes the hub will first look fo...

Страница 60: ... mines the serial port baud rate that will be used the next time the hub is restarted It applies only when the serial port is being used for out of band SLIP management it does not apply when the port is used as a console port Available speeds are 1200 2400 9600 and 19200 bits per second Out of Band Dial Up Phone Number This information is stored as a reference for the benefit of the system manage...

Страница 61: ...rsions of its internal firmware using TFTP the Trivial File Transfer Protocol and BOOTP the BOOTstrap Protocol You can use the Software Update menu to control this feature The fields you can set on this menu are Software Update This parameter determines whether or not the hub will try to look for the configuration file over the network If set to Disable the parameters below become irrelevant Softw...

Страница 62: ...athname of the CFG file on your hard disk This entry is used only if your boot protocol is TFTP ONLY if you are using BOOTP TFTP mode or if Use BOOTP to get IP after start up is enabled the pathname will be obtained from the BOOTP server For more information about the DFE 2600 series master hub configura tion file see Appendix C Boot Configuration File DFE 2600 Stackable Hub Software Update Menu S...

Страница 63: ...rameter corresponds to the MIB II object sysContact and is used to note the name and contact information of the person responsible for administering the hub Display Timeout An additional setting the console time out may be used to automatically log out the console interface after a predetermined period of inactivity This feature increases hub security by preventing access to the hub after the inte...

Страница 64: ...b or changes to a network hub s configuration that may effect other parts of the network 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 Status Invalid Invalid Invalid Invalid HELP SAVE EXIT The following trap parameters can be s...

Страница 65: ...rovided this feature has not been disabled 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 The community names public and private are defined by default you can change these names in addition ...

Страница 66: ... program will not let you delete the currently logged in user to prevent you from acci dentally deleting all users with Super User privileges making it impossible to change important hub settings Only users with Super User privileges can add and delete users Add a User To add a new user perform these steps 1 Choose User Account Change from the main menu The following screen will appear DFE 2600 St...

Страница 67: ...b User Account Change Create New User User Name Password Confirm Password Access Level Super User HELP SAVE EXIT 4 Choose SAVE and press Enter to let the user addition take ef fect 5 Choose EXIT to leave the Create New User menu Delete a User To delete a user follow these steps 1 Choose User Account Change from the main menu 2 Choose Change Access Delete Users from the User Account Change menu ...

Страница 68: ...Super User Active N A D Link Super User Active No N A N A N A HELP SAVE EXIT 4 Choose SAVE and press Enter to let the user deletion take ef fect 5 Choose EXIT to leave the Delete Users menu Primary Backup Master The Primary Backup Master Hub screen accessible from the Network Monitoring menu is used to display the stack management status of each master hub in the stack Fields in this screen are fo...

Страница 69: ...ment 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 Controlling Hubs in the Hub Stack The Group Configuration Menu screen found under the Network Monitor ing menu displays information about each of the hubs in the stack Note In this context Group means hub The items displayed on this sc...

Страница 70: ...dby master or slave Group Port Capacity This field shows the total number of net work 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 The management software does not discriminate any type of added or removed port will change the Port Capacity number Group Hardware Revision...

Страница 71: ...field will display None Group Isolate Provides control of the hub s current network con nection status and allows the system manager to manually isolate a particular hub as needed and reconnect it later Toggling the field to Isolate separates the hub s data connection from the other hubs Toggling the field to Reconnect re establishes the connection See Segmenting Hubs earlier in this chapter for m...

Страница 72: ...n connected to the port otherwise it displays Down Link Test State This field displays Enable if the port s link status is to be auto detected and displayed otherwise it displays Disable This variable is user configurable Receive Polarity This field always displays Normal if the hub is operating properly Auto Partition This field displays Yes if the port has been auto matically partitioned off fro...

Страница 73: ...eive Polarity Normal Auto Partition On Admin State Enable Port Speed 100M Speed Capability Auto PREV GROUP NEXT GROUP PREV PORT NEXT PORT HELP SAVE EXIT You can use PREV GROUP and NEXT GROUP to switch to another hub or PREV PORT and NEXT PORT to switch to another port You can also enter the port s Group ID and Port ID numbers to go directly to a dif ferent port Monitoring the Hub Stack The hub sup...

Страница 74: ...nitoring menu DFE 2600 Stackable Hub Network Monitoring Statistics Menu Segment Statistics Group Statistics Port Statistics EXIT The data categories provided for both port and group statistics are the same They are Frames Too Long This statistic counts frames longer than the 1518 byte octet limit set by the Ethernet standard This problem is likely caused by software errors Very Long Events This st...

Страница 75: ...ed by collisions Collisions This statistic counts collisions on the Ethernet segment FCS Errors This statistic counts otherwise valid frames that fail the CRC check Alignment Errors This statistic counts otherwise valid frames that did not end on a byte octet boundary Readable Frames This statistic counts valid frames Multicast This statistic counts the number of good multicast pack ets received M...

Страница 76: ... of the FCS Error Alignment Error Too Long Frame Short Event Late Event Very Long Event and 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 Pkts Sec Pkts Pkts Sec Frames Too Long 0 0 Readable Frames 484447 0 Very Lon...

Страница 77: ...ssi ble under the Network Monitoring menu StatsPkts This statistic displays the number of packets received from the network including error packets BroadcastPkts This statistics counts the number of good broadcast packets received on the segment MulticastPkts This statistics counts the number of good multicast packets received on the segment CRCAlignErrors This statistic counts the number of valid...

Страница 78: ...tPkts 6884 0 128 255 Octs 215763 0 CRCAlignErrors 47 0 256 511 Octs 12529 0 UndersizePkts 0 0 512 1023 Octs 4197 0 OversizePkts 0 0 1024 1518 Octs 75747 0 Fragments 677 0 Jabbers 1 0 Collisions 673 0 Octs Octs Sec StatsOctets 187814091 0 Total Octs 191996500 0 Next Monitoring Segment ID 1 PREV SEG NEXT SEG CLEAR COUNTER EXIT Collisions This statistic counts the number of collisions on the segment ...

Страница 79: ...tatistic displays the number of data octets in cluding those in bad packets and octets in FCS fields but does not include preamble or other framing bits Total Octs This statistic displays the total number of octets con tained in valid frames received on this segment Node Tracking The Node Tracking screen displays the origination MAC addresses of pack ets received by each node connected to the hub ...

Страница 80: ... 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 Bridge Information The bridge information screen allows the network administrator to view the install and operation status of all bridging modules within a segment To avoid non terminating network data loops only one bridging module at a ...

Страница 81: ... hub stack either doing a sys tem reset which restarts the hubs and is identical to powering them off and back on again or a factory reset which resets the master hub reverts all of its parameters back to their factory default values and restarts the entire hub stack Important Note If it is necessary for you to power off the hub or hub stack and then re start it instead of using the reset function...

Страница 82: ... perform a system reset follow these steps 1 Choose System Reset from the main menu The following confir mation message will appear DFE 2600 Stackable Hub System Reset Are you sure you want to reset No Yes 2 Move the cursor to Yes to confirm the reset and press Enter After a few seconds delay the hub should restart Factory Reset Before performing a factory reset be absolutely certain that this is ...

Страница 83: ...AM to Default Value from the main menu A confirmation message similar to that for the System Reset will appear 2 Move the cursor to Yes to confirm the reset and press Enter After a few seconds delay the hub should restart and all of its pa rameters will revert to their default values Note Doing a factory reset to the Primary Master also resets the Backup Master variables ex cept for the the Backup...

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Страница 85: ...tors 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 ...

Страница 86: ... 7 Not used Not used 8 Not used Not used 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 crossover cable two pairs of wires are switched at one connector end Carry out the following steps to create a customized crossover twisted pair cable 1 Leave one end of the cable as is with the RJ 45 conn...

Страница 87: ...upplemental information that concerns diagnostic port connections Information on RS 232 DB 25 connectors is provided for connections 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 The figures below show the connections necessary ...

Страница 88: ...ort DTE DB 9 Console Port DCE DB 9 9 RXD 2 TxD 3 DTR 4 SG 5 DSR 6 RTS 7 CTS 8 DCD 1 9 RXD 2 TxD 3 DTR 4 SG 5 DSR 6 RTS 7 CTS 8 DCD 1 Term inal PC Serial Port DTE DB 25 Console Port DCE DB 9 9 RXD 2 TxD 3 DTR 4 SG 5 DSR 6 RTS 7 CTS 8 DCD 1 RXD 3 TxD 2 DTR 20 SG 7 DSR 6 RTS 4 CTS 5 DCD 8 ...

Страница 89: ...s can be managed in a single place The configuration file is a text file usually stored on the server with a CFG extension It can be up to 10 KB long Lines beginning with are considered comments which are ignored by the hub All other lines are commands which are interpreted by the master hub The configuration file commands accepted by the hub are sysname string Takes string as the System Name corr...

Страница 90: ...he string can be up to 64 characters long baud rate n Sets the serial port communication rate used when the port is being used in out of band mode Legal values for the parameter n are 2400 4800 9600 and 19200 2600h image string Takes string which may be up to 64 characters long as the filename of the image file to be downloaded from the TFTP server When the hub boots it will load the given image f...

Страница 91: ...munity permissions Adds a community to the hub s list of SNMP communities with access permissions Four entries is the maximum allowed The community name can be up to 32 characters long Permissions can be read for read only community access or write for read write community access clear ip trap manager table Deletes all entries from the hub s trap manager list ip trap manager address community Adds...

Страница 92: ...on File 80 Sets the hub s maximum allowed console interface idle time to n minutes node age time n Sets the hub s node age timer to n seconds Node aging is used with the hub s security option to determine how long to keep entries in the node tracking table ...

Страница 93: ... 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 mum Fast Ethernet UTP STP Cat 5 100 ohm twisted pair 100m maximum for hub to station links UTP Cat 5 100 ohm UTP STP 5m maximum for hub ...

Страница 94: ...ub Status Power 10Mbps collision 100Mbps collision 10Mbps utili zation 100Mbps utilization module link Port Status per port Link Activity Auto Partition Manual Partition Speed 10 100Mbps Environmental and Physical Power Supply 100 to 240 VAC 50 or 60 Hz internal universal power supply Power Consumption DFE 2616 25 5 watts maximum DFE 2616x 27 watts maximum DFE 2624 34 watts maximum DFE 2624x 35 wa...

Страница 95: ... watts maximum Dimensions 441mm 237mm 55mm 1 25 U height 19 inch rack mountable Weight 3 87kg 8 53 lbs Operating Temperature 10 to 55 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 TÜV GS ...

Страница 96: ...Dual Speed Stackable Hubs User s Guide Specifications 84 ...

Страница 97: ...s Ethernet LAN communications stan dard set by the IEEE in standard 802 3u also called Fast Ethernet 100Mbps 100 million bits per second an expression of transmission speed in a network 10BASE T The original Ethernet LAN communications standard set by the IEEE in standard 802 3 a 10Mbps standard 10Mbps 10 million bits per second an expression of transmission speed in a network A Address A number s...

Страница 98: ...management software switching modules are most often referred to as bridges C Cascading The practice of connecting identical or similar LAN devices such as hubs together directly so that they function as one device A collection of cascaded devices is often called a stack Category 3 4 5 Communication cabling standards referring to the quality of the transmission medium and whether or not the cable ...

Страница 99: ...on when the data channel is in use D Duplex full half The transmission of data over a network in both directions Full Duplex FDX is simultaneous transmission of data over a network channel in both directions Half Duplex HDX is transmis sion in both directions but one at a time not simultaneous E Ethernet A particular type of LAN described in a standard 802 3 established by the IEEE with 10Mbps dat...

Страница 100: ... Out of band J Jabber Malfunction of a network device wherein it con tinuously transmits random data L LAN Local Area Network an interconnected set of computers and other devices LED Light Emitting Diode an electronic device that lights up when electricity is passed through it LEDs are commonly used for status indicators on electronic devices M Mbps Megabits per second millions of bits per second ...

Страница 101: ...is a type of repeater S Segment Part of an Ethernet or other network on which all traffic is common to all nodes See Collision Domain SNMP The Simple Network Management Protocol an industry standard protocol for remotely moni toring and controlling network devices from a Network Management System NMS SNMP requests are usually transmitted using TCP IP though other means are possible T TCP IP Transm...

Страница 102: ...ining device configuration files or bootstrap image files Trap An SNMP request that managed network devices send to network management stations to inform them that some problem has been detected Twisted pair Wire such as is commonly used with telephones consisting of pairs of copper wire usually termi nating in an RJ 45 or RJ 11 connector U UTP STP UTP unshielded twisted pair twisted pair wire wit...

Страница 103: ...ackup master 3 40 BOOTP 39 48 50 51 88 C cascade 12 39 Category 5 2 6 25 28 75 CE vi 85 Class I 7 Class II 2 7 8 25 83 collisions 3 18 20 34 35 66 69 89 configuration file xii 39 40 51 79 console program 22 27 37 47 56 72 conventions 38 crossover 11 29 30 34 76 CSMA CD 6 83 88 89 D diagnostic port 22 27 37 47 56 77 DIP switch 34 36 disable 3 D View 9 21 27 37 40 47 51 ...

Страница 104: ... xii 3 14 17 H hub ID 3 Hub Stack 59 64 I IEEE 802 3 1 2 6 83 IN v 12 23 installation 9 13 31 IP address 27 39 40 47 48 51 54 58 L LED xii 3 11 17 20 33 35 84 90 link 3 19 20 25 29 33 34 84 M MAC address 58 master xii 2 3 9 12 19 27 32 37 43 51 55 61 72 74 79 MII 4 module 2 5 12 19 31 35 84 N Navigation 38 network management 3 21 27 37 40 47 52 55 71 92 O OUT v 12 23 ...

Страница 105: ...43 44 53 55 71 82 slave 19 SLIP 47 50 SNMP 3 21 27 37 47 52 55 74 79 81 91 92 specifications xii 2 stack 1 5 8 13 19 24 32 84 88 STP 6 25 28 83 92 straight through 11 28 30 subnet mask 39 48 Super User 44 46 56 57 T TCP IP 26 37 40 47 49 74 88 92 TELNET 22 26 27 37 47 56 TFTP 39 40 50 51 79 80 92 Topology 6 83 U Uplink 3 11 29 30 31 utilization 3 19 84 UTP 6 25 28 76 83 92 ...

Страница 106: ...Dual Speed Stackable Hubs User s Guide V VCCI vi 85 VT 100 26 27 40 77 ...

Страница 107: ... au Web www dlink com au D Link Germany Bachstrae 22 D 65830 Kriftel Germany TEL 49 6192 97110 FAX 49 6192 971111 BBS 49 6192 971199 Info 0130 7250 00 toll free Help 0130 7250 40 toll free Web www dlink de D Link Denmark Naverland 2 DK 2600 Glostrup Copenhagen Denmark TEL 45 43 969 040 FAX 45 43 424 347 D Link China 15th Floor Science Technology Tower No 11 Baishiqiao Road Haidian District Beijing...

Страница 108: ...Hsin Tien Taipei Taiwan R O C TEL 886 2 2916 1600 FAX 886 2 2914 6299 BBS 886 2 2910 1835 Web www dlink com tw ...

Страница 109: ...your product 1 Where and how will the product primarily be used Home Office Travel Company Business Home Business Personal Use 2 How many employees work at installation site 1 employee 2 9 10 49 50 99 100 499 500 999 1000 or more 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...

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