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Gigabit Ethernet Switch User’s Guide

88

Web-Based Network Management

The information is described as follows:

♦

IP Address The IP address of the trap receiving
station.

♦

Community A user-defined community name.

SNMP Manager

To use the functions on this screen, enter the desired
community string for SNMP management on the
Switch in the Community String field and the desired
Access Right setting in the next field. You may enter up
to four IP addresses of trap receiving stations in the
Trap Manager window of the Configuration section.
Then click Apply to put the settings into effect.

The information is described as follows:

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Summary of Contents for DGS-3204

Page 1: ...DGS 3204 Gigabit Ethernet Switch User s Guide First Edition October 1999 6DGS3204 01 Printed In Taiwan RECYCLABLE ...

Page 2: ...ichts auf der Leitung abgestellt werden 11 Alle Hinweise und Warnungen die sich 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 B...

Page 3: ...en Servicepartner Somit stellen Sie die Betriebssicherheit des Gerätes sicher Zum Netzanschluß dieses Gerätes ist eine geprüfte Leitung zu verwenden Für einen Nennstrom bis 6A und einem Gerätegewicht gr ßer 3kg ist eine Leitung nicht leichter als H05VV F 3G 0 75mm2 einzusetzen ...

Page 4: ...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 OTHE...

Page 5: ...acting a D Link office within the applicable warranty period and requesting a Return Material Authorization RMA number If a Registration Card for the product in question has not been returned 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...

Page 6: ... product documentation Purchaser assumes responsibility for the selection of appropriate application and system platform software and associated reference 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...

Page 7: ...comply 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 equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with this user s guide may cause harmful interferen...

Page 8: ...VCCI Warning BSMI Warning ...

Page 9: ...TABLE OF CONTENTS ...

Page 10: ... 0 1 2 3 4 5 2 2 1 4 1 5 6 2 7 6 2 2 4 2 4 4 ...

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Page 13: ... simplicity this documentation uses the terms Switch first letter upper case to refer to the DGS 3204 Gigabit Ethernet Switch and switch first letter lower case to refer to all Ethernet switches including the DGS 3204 Overview of this User s Guide Chapter 1 Introduction Describes the Switch and its features Chapter 2 Unpacking and Setup Helps you get started with the basic installation of the Swit...

Page 14: ...nagement via the RS 232 DCE console port and other aspects about how to manage the Switch Chapter 6 Using the Console Interface Tells how to use the built in console interface to change set and monitor Switch performance and security Chapter 7 Web Based Network Management Tells how to manage the Switch through an Internet browser Appendix A Technical Specifications Lists the technical specificatio...

Page 15: ... theoretical throughput over 100Mbps Fast Ethernet and a one hundred fold increase over 10Mbps Ethernet Since it is compatible with all 10Mbps and 100Mbps Ethernet environments Gigabit Ethernet provides a straightforward upgrade without wasting a company s existing investment in hardware software and trained personnel The increased speed and extra bandwidth offered by Gigabit Ethernet is essential...

Page 16: ...technologies And with expected advances in the coming years in silicon technology and digital signal processing that will enable Gigabit Ethernet to eventually operate over unshielded twisted pair UTP cabling outfitting your network with a powerful 1000Mbps capable backbone server connection creates a flexible foundation for the next generation of network technology products SwitchingTechnolog Ano...

Page 17: ...chaining hubs beyond the two repeater limit A switch can be used to split parts of the network into different collision domains for example making it possible to expand your Fast Ethernet network beyond the 205 meter network diameter limit for 100BASE TX networks Switches supporting both traditional 10Mbps Ethernet and 100Mbps Fast Ethernet are also ideal for bridging between existing 10Mbps netwo...

Page 18: ...fiber interface RS 232 DCE console port for diagnosing the Switch via a connection to a PC and Console Out of band management Performance features Store and forward switching scheme capability to support rate adaptation and protocol conversion Full duplex to allow two communicating stations to transmit and receive at the same time Data forwarding rate 1 488 100pps per port at 100 of wire speed for...

Page 19: ...rk management via a PC Spanning Tree Algorithm Protocol for creation of alternative backup paths and prevention of indefinite network loops Fully configurable either in band or out of band control via SNMP based software Flash memory for software upgrade This can be done in band via BOOTP TFTP Out of band console can also initiate a download request Built in SNMP management Bridge MIB RFC 1493 Eth...

Page 20: ...acking Open the shipping carton of the Switch and carefully unpack its contents The carton should contain the following items One DGS 3204 Gigabit Ethernet Switch Accessory pack 2 mounting brackets and screws Four rubber feet with adhesive backing One AC power cord This user s guide CD ROM with a Registration Card The CD ROM containing management software ...

Page 21: ...he device Visually inspect the power cord and see that it is secured fully to the AC power connector Make sure that there is proper heat dissipation from and adequate ventilation around the Switch Do not place heavy objects on the Switch Desktop or Shelf Installation When installing the Switch on a desktop or shelf the rubber feet included with the device must be first attached Attach these cushio...

Page 22: ...stalled on a Desktop o Shelf Rack Installation The DGS 3204 can be mounted in an EIA standard size 19 inch rack which can be placed in a wiring closet with other equipment To install attach the mounting brackets on the switch s front panel one on each side and secure them with the screws provided ...

Page 23: ...ch Then use the screws provided with the equipment rack to mount the Switch in the rack Figure 2 2B Installing the Gigabit Ethernet Switch in an equipment rack Power on The DGS 3204 Switch can be used with AC power sources 100 240 VAC 50 60 Hz The Switch s power supply will adjust to the local power source automatically and may be ...

Page 24: ...espond as follows The Power LED indicator will light while the Switch loads onboard software and blinks when performing a self test The Console LED indicator will remain ON if there is a connection at the RS 232 port otherwise this LED indicator is OFF Power Failure As a precaution the Switch should be unplugged in case of power failure When power is resumed plug the Switch back in ...

Page 25: ...XTERNAL COMPONENTS This chapter describes the front panel rear panel and LED indicators of the Switch Front Panel The front panel of the Switch consists of 4 1000BASE SX multi mode fiber ports an RS 232 communication port and LED indicators Figure 3 1 Front panel view of the DGS 3204 Switch ...

Page 26: ...the Switch and status of the network A description of these LED indicators follows see LED Indicators Rear Panel The rear panel of the Switch consists of an AC power connector The following shows the rear panel of the Switch Figure 3 2 Rear panel view of the DGS AC Power Connector This is a three pronged connector that supports the power cord Plug in the female connector of the provided power cord...

Page 27: ...sides of the system also provide heat vents to serve the same purpose Do not block these openings and leave adequate space at the rear and sides of the Switch for proper ventilation Be reminded that without proper heat dissipation and air circulation system components might overheat which could lead to system failure LED Indicators The LED indicators of the Switch include Power Console Link Act an...

Page 28: ... switch Console This LED indicator is lit when the switch is being managed via out of band local console management through the RS 232 console port using a straight through serial cable When a secured connection is established this LED indicator is lit Otherwise it is OFF Link Act These LED indicators are lighted up when there is a secure connection or link to a device at any of the ports The LED ...

Page 29: ...scribes how to connect the DGS 3204 to your Gigabit Ethernet network PC to Switch A PC can be connected to the Switch via a fiber optic cable The PC should be connected to any of the four ports 1x 4x of the DGS 3204 Figure 4 1 DGS 3204 Switch connected to a PC or Workstation full duplex mode is required ...

Page 30: ...proper connection check the PC s LAN card the cable Switch conditions and connections The following are LED indicator possibilities for a PC to Switch connection The Link Act LED indicator lights up upon hookup Switch to Switch other devices The Switch can be connected to another switch or other devices routers bridges etc via a fiber optic cable Figure 4 2 DGS 3204 Switch to switch connection ...

Page 31: ...e components of the Switch allow them to be part of a manageable network These components include a CPU memory for data storage other related hardware and the SNMP agent firmware Activities on the Switch can be monitored with these components while the Switch can be manipulated to carry out specific tasks Out of Band Management for the Switch is accomplished through a locally connected management ...

Page 32: ...is called Local Console Management to differentiate it from management done via management platforms The console port is set for the following configuration Baud rate 9 600 Parity none Data width 8 bits Stop bits 1 IP Addresses and SNMP Community Names Each Switch has its own IP Address which is used for communication with an SNMP network manager or other TCP IP application for example BOOTP TFTP ...

Page 33: ...ork who are given certain rights and access in overseeing the maintenance of the network Trap managers can receive traps sent from the Switch they must immediately take certain actions to avoid future failure or breakdown of the network Traps are messages that alert you of events that occur on the Switch The events can be as serious as a reboot someone accidentally turned OFF the Switch or less se...

Page 34: ... addressee or manager user on the Switch is not a valid user of the Switch and may have entered an incorrect community name New Root This trap indicates that the Switch has become the new root of the Spanning Tree the trap is sent by a bridge soon after its election as the new root This implies that upon expiration of the Topology Change Timer the new root trap is sent out immediately after the Sw...

Page 35: ... that change while the Switch is in operation Examples of read only constants are the number of ports and types of ports Examples of read only variables are the statistics counters such as the number of errors that have occurred or how many kilobytes of data have been received and forwarded through a port Read write MIBs are variables usually related to user customized configurations Examples of t...

Page 36: ...s not relay frames received by a Switch Port to other Ports on that Switch in order to prevent the duplication of frames Frames transmitted between a pair of end stations can be confined to LANs that form a path between those end stations The functions that support the use and maintenance of filtering database information are 1 Permanent configuration of reserved addresses 2 Explicit configuration...

Page 37: ...ets whose source addresses cannot be found in the address table Spanning Tree Algorithm The Spanning Tree Algorithm STA in the Switch allows you to create alternative paths with multiple switches or other types of bridges in your network These backup paths are idle until the Switch determines that a problem has developed in the primary paths When a primary path is lost the switch providing the alt...

Page 38: ...ridge level STA calculates the Bridge Identifier for each Switch then sets the Root Bridge and the Designated Bridges On the port level STA sets the Root Port and Designated Ports Details are as follows On the Bridge Level Root Bridge The switch with the lowest Bridge Identifier is the Root Bridge Naturally you will want the Root Bridge to be the best switch among the switches in the loop to ensur...

Page 39: ...t Bridge is zero Bridge Priority This is a parameter that users can set The smaller the number you set the higher the Bridge Priority is The higher the Bridge Priority the better the chance the Switch will be selected as the Root Bridge On the Port Level Root Port Each switch has a Root Port This is the port that has the lowest Path Cost to the Root Bridge In case there are several such ports then...

Page 40: ...rom 1 to 10 seconds This is the interval between two transmissions of BPDU packets sent by the Root Bridge to tell all other Switches that it is indeed the Root Bridge If you set a Hello Time for your Switch and it is not the Root Bridge the set Hello Time will be used if and when your Switch becomes the Root Bridge Note that the Hello Time cannot be longer than the Max Age Otherwise a configurati...

Page 41: ...itch connected in a loop is depicted in Figure 5 1 In this example you can anticipate some major network problems if the STA assistance is not applied For instance if Bridge 1 broadcasts a packet to Bridge 2 Bridge 2 will broadcast it to Bridge 3 and Bridge 3 will broadcast it to Bridge 1 and so on The broadcast packet will be passed indefinitely in a loop causing a serious network failure To alle...

Page 42: ...be somewhat complex Therefore you are advised to keep the default factory settings and STA will automatically assign root bridges ports and block loop connections However if you need to customize the STA parameters refer to Table 5 1 Figure 5 1 Before Applying the STA Rule ...

Page 43: ...Gigabit Ethernet Switch User s Guide Switch Management 29 Figure 5 2 After Applying theSTA Rule ...

Page 44: ...reater than Max Age Time Max Age Time 6 40 sec Compete for Root Bridge if BPDU is not received Avoid low number for unnecessary reset of Root Bridge Forward Delay 4 30 sec High delays the change in state Max Age 2 x Forward Delay 1 Max Age 2 x Hello Time 1 Port Level STA parameters Enable Disable Enable Disable Enable or disable this LAN segment Disable a port for security or problem isolation Por...

Page 45: ...ement functions In addition the console program will allow you to set up the Switch for management using an SNMP based network management system This chapter describes how to use the console interface to access the Switch change its settings and monitor its operation Connecting to the Switch You can use the console interface by connecting the Switch to a VT100 compatible terminal or a computer run...

Page 46: ...ens are for the most part identical whether accessed from the console port or from a TELNET interface Console Usage Conventions The console interface makes use of the following conventions 1 Items in angle brackets can be toggled on or off using the space bar excepting the entries on the Port Configuration screen 2 Items in square brackets can be changed by typing in a new value You can use the ba...

Page 47: ...upports user based security that can allow you to prevent unauthorized users from accessing the Switch or changing its settings This section tells how to log onto the Switch Note The passwords used to access the Switch are case sensitive therefore S is not the same as s When you first connect to the Switch you will be presented with the first login screen shown below Press Ctrl R hold down the Ctr...

Page 48: ...et Switch User s Guide 34 Using the Console Interface Figure 6 1 Initial Screen first time connecting to the Switch Press Enter Note Leave the Username and Password fields blank You will see the main menu shown below ...

Page 49: ...rs 1 Choose Add Modify User Account from the User Account Management menu The Add Modify User Account menu appears 2 Enter the new user name assign an initial password and then confirm the new password Determine whether the new user should have Administrator or Normal User privileges Use the space bar to toggle between the two options 3 Press APPLY to let the user addition take effect 4 Press Esc ...

Page 50: ...izes Administrator and Normal User privileges Menu Administra tor Normal User Privilege Configuration Yes Yes view only Network Monitoring Yes Yes view only Community Strings and Trap Stations Yes Yes view only Update Firmware and Configuration Files Yes No User Account Management Add Modify User Account Yes No View Delete User Account Yes No System Utilities Yes Yes Factory Reset Yes No Restart S...

Page 51: ...tch Save Configuration In order to retain any modifications made in the current session it is necessary to choose Save Configuration from the main menu The following screen will appear to indicate your new settings have been processed Figure 6 3 Save Configuration screen Login On The Switch Console B Registered Users To log in once you have created a registered user ...

Page 52: ...enu screen will be displayed based on your Administrator or Normal User access level or privilege Add Modify User Account To add or change your user password 1 Choose User Account Management from the main menu The following User Account Management menu appears Figure 6 4 User Account Management menu 2 Choose Add Modify User Account The following screen appears ...

Page 53: ...ess Enter 5 Type in the New Password you have chosen and press Enter Type in the same new password in the following field to verify that you have not mistyped it 6 Determine whether the new user should have Normal User or Administrator privileges 7 Choose the APPLY command to let the password change take effect This method can also be used by an Administrator level user to change another user s pa...

Page 54: ... defined The console interface will not let you delete the current logged in user however in order to prevent accidentally deleting all of the users with Administrator privilege Only users with the Administrator privilege can delete users To view your user password Choose View Delete User Account from the User Account Management menu The following screen appears Figure 6 6 View Delete User Account...

Page 55: ...eletion take effect Setting Up The Switch This section will help prepare the Switch user by describing the System Configuration Firmware and Configuration Update System Utilities and SNMP Configuration menus and their respective sub menus System Configuration Choose System Configuration to access the first item on the DGS 3204 main menu The following menu appears ...

Page 56: ...work management information Configure IP Address The Switch needs to have a TCP IP address assigned to it so that the network management system or TELNET client can find it on the network The IP Configuration screen allows you to change the settings for the two different interfaces used on the Switch the Ethernet interface used for in band communication and the SLIP interface used over the console...

Page 57: ... be of the form xxx xxx xxx xxx where each xxx is a number represented in decimal between 0 and 255 This address should be a unique address on a network assigned to you by the central Internet authorities The same IP address is shared by both the SLIP and Ethernet network interfaces Subnet Mask Bitmask that determines the extent of the subnet that the Switch is on Should be of the form xxx xxx xxx...

Page 58: ...uration screen to choose whether to use the Switch s RS 232C serial port for console management or for out of band TCP IP communications using SLIP and to set the bit rate used for SLIP communications Choose Configure Console to access the last item on the System Configuration menu The following screen appears Figure 6 9 Console Configuration screen The following fields can be set Restart Setting ...

Page 59: ...Switch is restarted Applies only when the serial port is being used for out of band SLIP management it does not apply when the port is used for the console port Available speeds are 2400 9600 19 200 and 38 400 bits per second The default setting in this Switch version is 9600 Configure Switch The Switch Configuration screen shows various pieces of information about your Switch and allows you to se...

Page 60: ...dministrative purposes The Switch s fully qualified domain name is often used provided a name has been assigned System Location Corresponds to the SNMP MIB II variable system sysLocation and is used to indicate the physical location of the Switch for administrative purposes System Contact Corresponds to the SNMP MIB II variable sysContact and is used to give the name and contact information for th...

Page 61: ...witch Features screen Figure 6 11 Configure Advanced Switch Features screen The field you can set is Head Of Line HOL Blocking Prevention If enabled this function is designed to prevent forwarding a packet to a blocking port that is a port where an excess of packets are queued up Note that when a multicast packet or a packet with an unknown destination address needs to be forwarded to several port...

Page 62: ...owever must be observed when partitioning a port you should make sure that the partitioned port is not being used as the port to control or monitor the condition of other devices To change the configuration of a port 1 Select System Configuration from the main menu and then choose Configure Ports The following screen appears Figure 6 12 Port Configuration screen 2 Specify the port in the Port 1 4 ...

Page 63: ...om the rest of the network In this partitioned state it will only be able to accept management packets All other packets will be dropped Flow Ctrl Enables or disables IEEE 802 3x flow control on the port Flow control allows the port to send a Pause packet to a transmitting IEEE 802 3x compliant device so that its buffers don t overflow and data is not lost Priority Sets the priority for traffic ar...

Page 64: ... The Do Nothing setting causes the switch to operate normally in other words ignore the situation If the port had met the Broadcast Storm Rising Action criteria and started Blocking broadcast packets it will continue doing so The Forwarding setting causes the port to begin forwarding broadcast frames thus removing the Blocking state imposed by the Broadcast Storm Rising Action Forwarding Trap perf...

Page 65: ... Port field Then select the port which receives the copies from the source port in the Target Port field The target port is where you will connect a monitoring troubleshooting device such as a sniffer or an RMON probe Configure Spanning Tree Protocol The Spanning Tree Algorithm Parameters can be used for creating alternative paths in your network The Protocol Parameters allow you to change the beh...

Page 66: ...ons as well as the introductory section in the same chapter entitled Spanning Tree Algorithm before changing any of the parameters To change the Protocol Parameters 1 Choose Configure Spanning Tree Protocol from the System Configuration menu The following Spanning Tree Protocol Configuration menu will be displayed Figure 6 14 Spanning Tree Protocol Configuration menu 2 Choose STP Parameters Settin...

Page 67: ... Enter the Bridge Max Age in the Max Age 6 40 sec field 5 Enter the Bridge Hello Time in the Hello Time 1 10 sec field 6 Enter the Bridge Forward Delay time in the Forward Delay 4 30 sec field 7 Enter the Bridge Priority in the Bridge Priority 0 65535 field The information on the screen is described as follows Spanning Tree Protocol Select Enabled to implement the Spanning Tree Protocol ...

Page 68: ...network that has been chosen as the STP root Root Cost Read only object displays the cost for the path between the switch and the root bridge If the switch is the root bridge then the root cost is zero Root Port Read only object identifies the port on the bridge that offers the least path cost from the bridge to the root bridge In the event of a network loop data packets will pass through the root...

Page 69: ... ranges from 0 to 65535 with 0 being the highest priority Max Age 6 40 Sec Maximum Age is a read write object that can be set from 6 to 40 seconds At the end of the Maximum Age if a BPDU has still not been received from the Root ridge your Switch will start sending its own BPDU to all other switches for permission to become the Root Bridge If it turns out that your Switch has the lowest Bridge Ide...

Page 70: ...ress to set the bridge ID which in turn is used when determining the root bridge of a multibridged network The root bridge is responsible for processing data packets when network loops occur The smaller the number set the higher the bridge priority is The higher the bridge priority the more chance the bridge has of becoming the root bridge Zero is the highest priority To change the parameters on i...

Page 71: ...eld 5 Set the priority for the port between 0 and 255 in the Priority field 6 Press CTRL S to apply the new settings Configure Forwarding and Filtering Table When a packet hits the Switch the Switch looks in the filtering and forwarding tables to decide what to do with the packet either to filter it off the network or to forward it through the port on which its destination lies The Configure Filte...

Page 72: ...ndow Choose Configure Forwarding and Filtering Table from the Switch Configuration menu to access the following screen Figure 6 17 Filtering and Forwarding Table Configuration screen The following fields at the top of the screen can be set Lock Address Table STOPs Learning Mostly used for security purposes when the forwarding table is locked the Switch will no longer learn the MAC addresses for ne...

Page 73: ...time in this field 1 to 9999 minutes The Custom Forwarding Table displays a list of manually defined static MAC address entries To access the Custom Forwarding Table choose Configure Forwarding and Filtering Table from the System Configuration menu Then select Custom Forwarding Table from the bottom of the Filtering and Forwarding Table Configuration screen The following screen appears Figure 6 18...

Page 74: ... times of network congestion To make a change to the Custom Forwarding Table choose either Add or Remove in the Action field Then enter the MAC Address the Port number that permanently forwards traffic from the specified device regardless of the device s network activity or current network congestion and press APPLY The Custom Filtering Table contains filtering information configured into the Swit...

Page 75: ... the Filtering Database by the user They are not automatically removed by any timeout mechanism To access the Custom Filtering Table select Configure Forwarding and Filtering Table from the System Configuration menu Then select Custom Filtering Table from the bottom of the Filtering and Forwarding Table Configuration screen The following screen appears Figure 6 19 Custom Filtering Table screen To ...

Page 76: ... Protocol and BOOTP the BOOTstrap Protocol You can use the Firmware and Configuration Update screen to control this feature Choose Firmware and Configuration Update on the Switch s main menu The following screen appears Figure 6 20 Firmware and Configuration Update screen The fields you can set are Software Update Mode Set to either Network or SLIP Determines whether the configuration file should ...

Page 77: ...er or not the Switch will try to look for a runtime image file over the network If set to Disabled none of the fields below have any effect File Name The pathname of the runtime image file on your TFTP server to be downloaded Use Config File Toggle to Enabled to download config file during reboot Config File Name The name of the configuration file to be downloaded System Utilities The System Utili...

Page 78: ...Gigabit Ethernet Switch User s Guide 64 Using the Console Interface Figure 6 21 System Utilities menu Choose Ping Test to access the following screen Figure 6 22 Ping Test screen ...

Page 79: ...en a system reset occurs The Switch allows traps to be routed to up to four different network management hosts For a detail list of Trap Types used for this Switch see Chapter 5 Switch Management Traps section SNMP version 1 implements a rudimentary form of security by requiring that each request include a community name A community name is an arbitrary string of characters used as a password to c...

Page 80: ...screen Figure 6 23 SNMP Configuration screen The following parameters can be set Community String SNMP Community String Determines the community name to be included in the trap request Access Right Allows each community to be separately set to either Read Only or Read Write Status Determines whether this community name entry is Valid or Invalid An entry can be deleted by changing its status to Inv...

Page 81: ...f each port The statistics obtained can be used to monitor the conditions and general efficiency of the Switch Network Monitoring This display permits you to observe the condition of each individual port Traffic Statistics To display the Port Utilization table 1 Choose Network Monitoring from the main menu 2 Choose Traffic Statistics from the Network Monitoring menu 3 Choose Port Utilization from ...

Page 82: ...etting from 1 sec 5 sec 15 sec 30 sec 1 min or Suspend TX sec The number of good bytes sent from the respective port per second RX sec The number of good bytes received per second This also includes local and dropped packets Util This shows the percentage of available bandwidth each port is using over the amount of time specified by the update interval To display the Port Traffic Statistics table ...

Page 83: ... the Traffic Statistics menu Figure 6 25 Port Traffic Statistics screen The information displayed above includes Ports This field always displays 1 to 4 in this 4 port Switch version Update Interval Select the desired update increment setting from 1 sec 5 sec 15 sec 30 sec 1 min or Suspend Speed The speed for each port is 1000M When a link is up 1000M Full will be displayed When a link is down wil...

Page 84: ... of good frames received This also includes local and dropped packets Frames Sent The number of good frames sent from the respective port Total Bytes Recv The number of bytes received good and bad Total Frames Recv The number of frames received good and bad Last Seen MAC The MAC address of the device where the port information was most recently accessed To display the Port Error Packet Statistics ...

Page 85: ...terval Select the desired update increment setting from 1 sec 5 sec 15 sec 30 sec 1 min or Suspend CRC Errors The number of frames that fail the CRC integrity check Oversize Frames The number of good frames with length greater than 1518 bytes and therefore are greater than the maximum legal length Fragments The number of packets less than 64 bytes with either bad framing or an invalid CRC These ar...

Page 86: ...ckets which are dropped due to any of the following reasons lack of available receive buffers port disable link test fail spanning tree or empty distribution list Total errors The sum of the CRC Errors Oversize Frames Fragments Jabbers Late Collisions Mac Rx Errors and Dropped Frames counters Collisions The number of collision errors To display the Port Packet Analysis Statistics table 1 Choose Ne...

Page 87: ...l Select the desired update increment setting from 1 sec 5 sec 15 sec 30 sec 1 min or Suspend 64 65 127 128 255 256 511 512 1023 1024 1518 The number of good frames of various length ranges both valid and invalid RX GOOD The number of good frames received This also includes local and dropped packets TX GOOD The number of good frames sent from the respective port Total RX The number of frames recei...

Page 88: ...d multicast frames received and sent This includes local and dropped multicast packets Broadcast RX Broadcast TX The number of good broadcast frames received and sent This includes dropped broadcast packets Forwarding Table The Forwarding Table allows the user to view which Switch port s a specific network device uses to communicate on the network You can sort this table by MAC address or port Thi...

Page 89: ...ND To browse by port number selectPort in the Search by field enter the desired port in the next field and then press FIND A forwarding table containing Port MAC Address and Learned status is located on the lower part of the screen Resetting the Switch You can use the console interface to reset the Switch either doing a Restart System which restarts the Switch and is identical to powering the Swit...

Page 90: ...ystem To perform a system reset choose Restart System from the main menu Please note there is no confirmation query before the system is rebooted Figure 6 29 Restart System screen Factory Reset to Default Value Before performing a factory reset be absolutely certain that this is what you want to do Once the reset is done all of the Switch s settings stored in NV RAM including TCP IP parameters SNM...

Page 91: ...ctory default settings 1 Choose Factory Reset to Default Value from the main menu The following screen appears Figure 6 30 Factory Reset to Default Value screen 2 Move the cursor to Yes to confirm the reset and press Enter The main menu screen should appear Logout To exit the Switch choose Logout from the main menu You will be returned to the opening login screen ...

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Page 93: ...the network through a standard browser such as Netscape Navigator Communicator or Microsoft Internet Explorer The Web browser acts as a universal access tool and can communicate directly with the Switch using HTTP protocol Your browser screen may vary with the screen shots pictures in this guide NOTE This Web based Network Management module does not accept Chinese language input or other languages...

Page 94: ... see the Configure IP Address section in the Using The Console Interface chapter Management To begin managing your Switch simply run the browser you have installed on your computer and open the IP address you have defined for the device In the page that opens click on the Login to DGS 3200 Manager hyperlink This opens the main page in the management module The top portion of the window contains an...

Page 95: ...ram causes a list of options to appear underneath the major category All categories and options are explained below Configuration This is the first category and is opened by default when you login to the Web based management program The Configuration options are listed below along with explanations for each one Basic Setup To set basic Switch settings enter the name of the person to contact should...

Page 96: ...en click Apply The remaining information in the screen includes System Description Description of the Switch model System OID SNMP Object Identifier for the Switch model System Uptime Amount of time the Switch has been powered on Runtime Software Version This version number of the software PROM Firmware Version Version number of the firmware stored in the Flash memory of the Switch Hardware Revisi...

Page 97: ...eway of the Switch If you enable BOOTP you do not need to configure any IP parameters because a BOOTP server automatically assigns IP configuration parameters to the Switch Click Apply to activate the new settings 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 Switch is on Default Gatewa...

Page 98: ...ad of line HOL blocking prevention a function designed to prevent forwarding a packet to a blocking port that is a port where an excess of packets are queued up Note that when a multicast packet or a packet with an unknown destination address needs to be forwarded to several ports and if some of them are blocking the packet will not be discarded rather it will be forwarded only to the ports that a...

Page 99: ...se steps 1 Enable or disable the port If you choose Disabled devices connected to that port cannot use the Switch and the Switch purges their addresses from its address table after the MAC address aging time elapses The Switch won t purge addresses if you define them as permanent entries in the Forwarding Table 2 Configure the Speed Duplex setting for the port The only option is 1000M Full which m...

Page 100: ...y setting for packets passing through this port using IEEE 802 1 tagging Select Normal High or Low If the network is congested the switch handles packets with a higher priority before those with lower priority 5 Click Apply to let your changes take effect Port Mirror The Switch allows you to copy frames transmitted and received on a port and redirect the copies to another port You can attach a mon...

Page 101: ...ect the port which receives the copies from the source port This is the port where you will connect a monitoring troubleshooting device such as a sniffer or an RMON probe Trap Manager To use the trap manager function featured on this Switch enter the desired community string and IP address of the trap receiving station up to four are allowed A trap receiving station is a device that constantly run...

Page 102: ...P Manager To use the functions on this screen enter the desired community string for SNMP management on the Switch in the Community String field and the desired Access Right setting in the next field You may enter up to four IP addresses of trap receiving stations in the Trap Manager window of the Configuration section Then click Apply to put the settings into effect The information is described a...

Page 103: ...MP community name Download Firmware and configuration updating can be done from the screen above The information is described as follows Software Update Mode Set to either Network or Out of Band Determines whether the new firmware code should be obtained through the Ethernet network or through the console port TFTP Server Address The IP address of the TFTP server where the new firmware code is ...

Page 104: ... and the name of the file which holds the new firmware code on the TFTP server Use Config File Determines whether or not the Switch should download its configuration file the next time it is booted Config File Name The path and configuration name on the TFTP server Last TFTP Server Address The IP address of the TFTP server where the configuration file was located in the last configuration change C...

Page 105: ...re Baud Rate 9600 Data Bits 8 Flow Control X on X off Parity None Stop Bits 1 The information is described as follows Console Timeout Choose Never 15 minutes 30 minutes 45 minutes or 60 minutes for the desired refresh setting Serial Port The options for the current console port setting are Console or Slip Baud Rate Determines the serial port bit rate that will be used the next time the Switch is r...

Page 106: ...Gigabit Ethernet Switch User s Guide 92 Web Based Network Management Save To save all changes made in the current session to the Switch s flash memory click the Apply button on this screen ...

Page 107: ...Doing a remote reset is equivalent to turning the Switch off and on again All parameters are returned to the values stored in EEPROM Bridge This is the second category of the Web based management program The Bridge options are listed below along with explanations for each one ...

Page 108: ...ork See the Spanning Tree Algorithm section of the Switch Management chapter for a detailed explanation To configure Spanning Tree Protocol functions for the Switch or individual ports enter the desired information in the fields on this screen see the descriptions below for assistance and then click Apply The information on the screen is described as follows Spanning Tree Protocol Select Enabled t...

Page 109: ...network that has been chosen as the STP root Root Cost Read only object displays the cost for the path between the switch and the root bridge If the switch is the root bridge then the root cost is zero Root Port Read only object identifies the port on the bridge that offers the least path cost from the bridge to the root bridge In the event of a network loop data packets will pass through the root...

Page 110: ...anges from 0 to 65535 with 0 being the highest priority Bridge Max Age 6 40 Sec The Maximum Age is a read write object that can be from 6 to 40 seconds At the end of the Maximum Age if a BPDU has still not been received from the Root ridge your Switch will start sending its own BPDU to all other switches for permission to become the Root Bridge If it turns out that your Switch has the lowest Bridg...

Page 111: ... priority number of the bridge The value is used in conjunction with the bridge MAC address to set the bridge ID which in turn is used when determining the root bridge of a multibridged network The root bridge is responsible for processing data packets when network loops occur The smaller the number set the higher the bridge priority is The higher the bridge priority the more chance the bridge has...

Page 112: ... Path Cost of 10 and each 10Mbps segment has an assigned Path Cost of 100 Priority The read write object displays the priority number of the port The value is used in conjunction with the physical port number to set the port ID which in turn is used when determining the root port of the bridge The smaller the number set the higher the port priority is The higher the port priority the more chances ...

Page 113: ...AC addresses Custom FDB To use the MAC forwarding function enter the MAC address of the device to which the specified port permanently forwards traffic in the Destination Address field and enter the port number that permanently forwards traffic from the specified device in the Destination Port field Then click Apply The information in the screen is described as follows Destination Address The MAC ...

Page 114: ...le MAC filtering allows the Switch to block inbound traffic from unknown or unwanted devices by mapping a port to a source MAC address To use the MAC filtering function enter the MAC address of the device allowed to send traffic in the MAC Address field and select the desired setting in the Filter Status field Then click Apply The information in the screen is described as follows MAC Address The E...

Page 115: ...tor This is the third category of the Web based management program The Monitor options are listed below along with explanations for each one Overview The information on the Switch Statistics table is described as follows TX frames sec Counts the total number of frames transmitted from a selected port per second since the Switch was last rebooted ...

Page 116: ...port is using over the amount of time specified by the update interval Traffic The port statistics shown by default are those for the port you last configured Once in the Port Statistics screens you can click any port on the switch graphic to show statistics for that port The information is described as follows Link Status Indicates whether the port is online and working 1000 Full Flow control off...

Page 117: ...essfully sent from the port Bytes Received Counts the total number of bytes octets included in valid readable frames Total Bytes Received Counts the total number of bytes received on the port whether in valid or invalid frames Traffic in Frames Frames Sent Counts the total number of frames transmitted from the port Frames Received Counts all valid frames received on the port Total Frames Received ...

Page 118: ...Gigabit Ethernet Switch User s Guide 104 Web Based Network Management Utilization The information is described as follows Last Detected Source Address MAC address of the last source accessed ...

Page 119: ...ontrol on or not Link Down Jabber Counts frames longer than the maximum 1518 bytes octets with either bad framing or an invalid CRC Dropped Frames Counts received packets which are dropped due to any of the following reasons lack of available receive buffers port disable link test fail spanning tree or empty distribution list Other errors CRC Alignment Counts otherwise valid frames that did not en...

Page 120: ...ings This may indicate noise on the line Oversize Frames Counts packets received that were longer than 1518 octets excluding framing bits but including FCS octets and were otherwise well formed Received Bad Fragments The number of good frames with length less than the 64 byte octet minimum defined by the Ethernet standard These are usually caused by collisions Total Errors The sum of the CRC Align...

Page 121: ...ce the update interval has been selected 64 The total number of packets including bad packets received that were 64 octets in length excluding framing bits but including FCS octets 65 127 The total number of packets including bad packets received that were between 65 and 127 octets in length inclusive excluding framing bits but including FCS octets 128 255 The total number of packets including bad...

Page 122: ...nclusive excluding framing bits but including FCS octets 1024 1518 The total number of packets including bad packets received that were between 1024 and 1518 octets in length inclusive excluding framing bits but including FCS octets RX good The number of good frames received This also includes local and dropped packets TX good The number of good frames sent from the respective port Total RX The nu...

Page 123: ...umber of good packets received that were directed to a multicast address Note that this number does not include packets directed to the broadcast address Broadcast The total number of good packets received that were directed to the broadcast address Note that this does not include multicast packets User This is the fourth category of the Web based management program The Monitor option is listed be...

Page 124: ...he User Name Old Password New Password and Confirm New Password fields Then select General User or Administrator in the Access Level control and click Apply To delete a User Account click the X icon in the delete column on the User Account Table at the bottom of the screen Help Click this button to access the online help files for the Switch ...

Page 125: ... Standards IEEE 802 3z on each port IEEE 802 3 Frame types Transparent IEEE 802 3 MAC layer frame size 64 1518 bytes Protocol CSMA CD Data Transfer Rate Gigabit Ethernet 2000Mbps full duplex Topology Star Network Cables 525 m 50 125 mm 275 m 62 5 125 mm multimode fiber Number of Ports 4 x 1000Mbps ports ...

Page 126: ...ees Celsius Storage Temperature 20 60 degree Celsius Humidity 5 95 RH non condensing Dimensions 441 mm x 207 mm x 44 mm 1U 19 inch rack mount width Weight 3 kg EMI FCC Class A CE Mark Class A VCCI Class A BSMI Class A C Tick Class A Safety UL UL 1950 CSA CSA950 TUV GS EN60950 Performance Transmission Method Store and forward RAM Buffer 8 Mbytes per device Filtering Address Table 12K MAC address pe...

Page 127: ...Gigabit Ethernet Switch User s Guide Technical Specifications 113 Performance Rate MAC Address Learning Self learning auto aging ...

Page 128: ... s Guide 114 INDEX 9 INDEX 0 1 23 23 4 5 6 4 5 76 8 4 8 4 4 9 841 0 1 2 04 2 2 7 7 1 2 7 84 2 2 8 0 6 1 2 0 6 3 2 2 8 7 7 2 2 8 4 2 7 11 0 4 2 1 1 8 416 3 4 4 1 84 1 4 2 84 1 26 7 2 4 4 2 12 38 4 4 4 4 4 3 4 1 4 4 1 0 0 2 2 4 146 ...

Page 129: ... 0 1 2 2 4 2 2 4 2 2 4 2 2 2 6 2 6 2 6 2 6 2 6 2 7 4 4 4 4 4 4 4 4 4 8 411 2 4 4 8 2 4 4 6 0 6 0 6 34 2 2 3 1 4 48 1 4 11 88 6 88 6 48 7 7 88 6 48 04 1 88 6 2 7 2 1 948 7 2 4 7 2 04 3 4 7 2 1 7 2 1 2 4 4 2 4 1 7 2 4 2 4 1 2 4 1 7 2 7 2 2 7 2 7 2 4 2 1 7 2 3 7 8 9 4 2 3 3 2 3 3 ...

Page 130: ...1 1 2 1 8 1 42 0 1 2 8 8 8 1 2 4 1 8 4 2 4 1 4 4 4 4 7 1 2 4 4 4 7 4 2 4 4 4 4 74 1 4 46 2 4 2 4 2 4 2 3 17 4114 4 4 4 4 8 1 4 48 6 48 7 1 2 6 48 1 2 7 7 3 74 4 88 4 3 4 6 74 1 41 4 1 4 1 948 1 4 1 4 1 1 2 4 4 2 4 1 7 2 4 1 2 4 4 4 8 4 4 7 2 4 4 8 4 4 8 2 3 3 14 3 8 8 6 1 1 ...

Page 131: ... 1 4 146 4 146 4 146 4 146 4 2 4 1 428 48 0 48 0 48 4 1 11 1 11 4 9 2 4 4 0 3 4 7 1 1 2 0 4 7 1 2 0 3 4 4 11 8 11 8 11 8 1 1 8 8 6 76 2 41 8 11 4 7 4 4 9 88 6 948 7 2 4 4 4 9 4 4 4 4 4 0 4 11 4 11 4 4 34 2 0 4 5 4 41 1 84 42 8 4 1 4 2 2 3 3 1 6 2 0 9 ...

Page 132: ...DEX 2 2 7 2 8 4 2 0 4 4 42 8 4 42 8 7 84 4 4 2 4 2 4 2 4 2 8 A 6 1 4 1 4 1 4 9 14 14 7 4 9 1 4 0 4 2 12 38 9 2 9 4 9 9 841 1 4 4 2 8 4 7 4 84 42 8 7 4 4 42 8 0 B 48 0 0 0 0 7 3 0 4 4 2 4 6 4 3 4 3 3 C 7 1 B4 C 1 B4 C 1 7 84 7 4 7 8 2 4 6 8 2 4 4 ...

Page 133: ...tch User s Guide INDEX 119 2 7 2 4 4 416 4 6 6 477 4 6 2 1 7 4 1 B4 8 4 1 4 0 4 3 B 6 8 4 1 4 48 2 4 146 7 1 2 11 8 7 1 2 4 2 7 1 4 4114 77 1 4 16 7 7 4 7 7 4 4 1 0 4 428 2 3 3 23 4 1 9 9 2 4 3 6 6 1 8 7 4 2 6 7 48 5 5 40 ...

Page 134: ...2 3 3 74 7 4 88 4 84 42 8 77 9 88 6 2 9 7 2 4 9 4 42 7 4 4 4 2 12 38 4 2 12 38 7 3 4 2 12 38 4 48 1 4 48 4 2 12 38 1 4 2 1 4 2 1 5 1 4 0 1 3 2 0 1 4 4 4 4 7 1 2 4 1 2 7 7 4 4 8 4 9 841 42 8 4 4 7 4 3 2 8 2 4 48 2 4 84 4 3 7 2 4 3 2 3 3 3 3 0 3 2 3 1 26 6 8 7 2 4 6 8 4 ...

Page 135: ... 6 8 6 8 4 2 7 4 4 4 6 8 8 6 8 1 4 2 5 5 9 1 3 41 7 4 9 2 48 8 41 8 14 5 8 41 8 14 2 48 E 4 2 6 8 8 8 0 3 0 41 1 4 7 1 0 3 4 6 0 9 7 4 8 1 26 34 2 1 26 34 2 1 26 34 2 41 6 0 41 6 0 41 41 41 48 0 41 48 0 41 477 477 4 4 8 3 4 4 42 4 4 4 7 7 2 6 7 48 5 5 4 4 4 4 2 4 2 4 4 041 7 2 1 ...

Page 136: ...Gigabit Ethernet Switch User s Guide 122 INDEX 4 42 8 948 34 2 1 1 4 48 48 2 3 1 74 1 B4 1 B4 0 14 5 1 8 4 1 8 41 E4 8 4 E E 23 ...

Page 137: ...snerie 78330 Fontenay Le Fleury France TEL 33 1 3023 8688 FAX 33 1 3023 8689 WEB www dlink france fr E MAIL info dlink france fr GERMANY D LINK GERMANY Bachstr 22 D 65830 Kriftel Germany TEL 49 0 6192 97110 FAX 49 0 6192 971111 WEB www dlink de BBS 49 0 6192 971199 Analog 49 0 6192 9711 98 ISDN INFO 00800 7250 0000 toll free HELP 00800 7250 4000 toll free INDIA D LINK INDIA Plot No 5 Kurla Bandra ...

Page 138: ...London HA7 1DP U K TEL 44 181 235 5555 FAX 44 181 235 5500 WEB www dlink co uk E MAIL info dlink co uk U S A D LINK U S A 53 Discovery Drive Irvine CA 92618 USA TEL 1 949 788 0805 FAX 1 949 753 7033 WEB www dlink com E MAIL tech dlink com ...

Page 139: ...our 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 Others_____________________________ 4 What network operating system s does your organization use...

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