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Solving Fabric Formation Problems

53

another device on your network. 3Com suggests you use addresses in the range
192.168.0.0 to 192.168.255.255 with a subnet mask of 255.255.255.0.

These suggested IP addresses are part of a group of IP addresses that have been
set aside specially for use ‘in house’ only.

Solving Fabric
Formation Problems

If you are having problems with correctly forming a fabric, first ensure that
Spanning Tree is enabled. If it is enabled, do the following:

1

Power off all units in the fabric.

2

Check all the cable connections in the fabric.

3

Check the ports have been enabled as fabric ports.

4

Power on all units in the fabric.

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Содержание 4500G Series

Страница 1: ...Com Switch 4500G Family Getting Started Guide Switch 4500G 24 Port Switch 4500G 48 Port Switch 4500G PWR 24 Port Switch 4500G PWR 48 Port www 3Com com Part Number 10014899 Rev AC Published October 200...

Страница 2: ...252 227 7015 Nov 1995 or FAR 52 227 14 June 1987 whichever is applicable You agree not to remove or deface any portion of any legend provided on any licensed program or documentation contained in or d...

Страница 3: ...20 Mounting the Switch on a Desktop 23 The Power up Sequence 23 Connecting a Redundant Power Supply 24 Connecting Console Cable 28 SETTING UP SWITCH MANAGEMENT Methods of Managing a Switch 31 Setting...

Страница 4: ...tended Warranty and Professional Services 65 Access Software Downloads 66 Contact Us 66 3COM NETWORK MANAGEMENT 3Com Network Supervisor 69 3Com Network Director 70 3Com Network Access Manager 70 3Com...

Страница 5: ...ister point your web browser to eSupport 3Com com Before You Start The guide is intended for use by network administrators who install and set up network equipment consequently it assumes a basic work...

Страница 6: ...rmat on the 3Com Web site 3Com Switch 4500G Family Quick Reference Guide This guide contains a list of the features supported by the switch a summary of the command line interface commands for the swi...

Страница 7: ...products developed by 3Com The 3Com Switch 4500G family delivers flexible quad speed performance 10 100 1000 and 10 Gigabit and advanced voice optimized features such as Power over Ethernet PoE auto Q...

Страница 8: ...rted Flow Control In full duplex operation all ports are supported The Switch 4500G ports can receive but not send pause frames Traffic Prioritization Supported using the IEEE Std 802 ID 1998 Edition...

Страница 9: ...the Switch 4500G 48 Port unit Figure 4 Switch 4500G 48 Port rear panel 1 AC power input 2 Grounding terminal 3 Extended slot 1 4 Extended slot 2 1 10 100 1000 BASE T autosensing Ethernet port status...

Страница 10: ...LED Label Status Description Mode LED Mode Rate mode Green ON The port status LEDs are showing the port rates Duplex mode Yellow ON The port status LEDs are showing the duplex mode of the ports Power...

Страница 11: ...ht bar rotates clockwise around the display during the loading procedure Fan failure Red ON An F is displayed Overtemp erature alarm Red ON A t is displayed Cluster status Green ON A C is displayed if...

Страница 12: ...ort works in full duplex mode the LED blinks quickly when the port is sending or receiving data Yellow The port works in half duplex mode the LED blinks quickly when the port is sending or receiving d...

Страница 13: ...e Switch 4500G PWR 24 Port Ethernet Switch Figure 6 Switch 4500G PWR 24 Port Unit s Rear Panel 1 10 100 1000 BASE T autosensing Ethernet port status LEDs 2 Gigabit SFP Combo port status LED 3 Console...

Страница 14: ...unit s rear panel Figure 8 Switch 4500G PWR 48 Port Unit s Rear Panel 1 10 100 1000 BASE T autosensing Ethernet port status LEDs 2 Console port 3 7 segment digitron display 4 Mode switching button 5...

Страница 15: ...de Yellow ON The port status LEDs are showing the duplex mode of the port PoE mode Green blinking 1 Hz The port status LEDs are showing the PoE status of the port Power LED PWR Green ON The switch sta...

Страница 16: ...loading procedure Fan failure Red ON An F is displayed Overtemper ature alarm Red ON A t is displayed Cluster status Green ON A C is displayed if there is a command switches An S is displayed if ther...

Страница 17: ...he port supplies power normally Green blinking 1 Hz The required power of the attached devices has exceeded the maximum power that the port can supply The total power that the switch supplies has reac...

Страница 18: ...Mbps Ethernet ports Four Gigabit SFP Combo ports 24 10 100 100 Mbps Ethernet ports Four Gigabit SFP Combo ports 48 10 100 100 Mbps Ethernet ports Four Gigabit SFP Combo ports Optional interface modul...

Страница 19: ...fety and Regulatory Information Sicherheitsinformationen und Betriebsbestimmungen der 3Com Switchfamilie sowie Anhang D Redundant Power Supply Safety Information on page 73 lesen ADVERTENCIA Informaci...

Страница 20: ...i garanzia pu invalidare la garanzia OSTRZE ENIE Otwarcie prze cznika lub naruszenie plomby gwarancyjnej mo e uniewa ni gwarancj Rack Mounting the Switch Follow the steps below to mount your switch in...

Страница 21: ...acket The Switch 4500G 24 Port and Switch 4500G 48 Port units do not need rear brackets The description on mounting rear brackets is only for the Switch 4500G PWR 24 Port and Switch 4500G PWR 48 Port...

Страница 22: ...ng on the switch according to the position of the mount angle 3 Mount the screw to the switch and make sure the screw and the rear bracket are closely connected Figure 13 Installation completed 1 Thre...

Страница 23: ...00G powered up and ready for operation Powering up the Switch 4500G Use the following sequence of steps to power up the Switch 1 Plug the power cord into the power socket at the rear of the Switch 2 P...

Страница 24: ...has a 48V DC Redundant Power Supply socket WARNING Only properly trained and qualified personnel should install the Redundant Power Supply RPS WARNING Make sure to read these instructions in conjunct...

Страница 25: ...redundancy If the AC mains supply or the AC power supply fails the switch powers off AC Mains and 48V DC primary supply the internal AC supply acts as the backup in the event of a DC power failure DC...

Страница 26: ...of a shelf that can house from one to six rectifiers a Distribution Module and a Management Module Connecting the Switch to the Redundant Power System When connecting the RPS to the switch the circui...

Страница 27: ...h if the length is suitable Alternatively use the earthing cable specification as defined in Earthing Lead on page 20 The earthing cable is only required if the switch is powered by the RPS only The r...

Страница 28: ...the switch You can fit the switch with a redundant power supply or uninterruptible power supply to increase its uptime The switch supports resistor detection according to IEEE 802 3af and pre standar...

Страница 29: ...e Console port of the switch CAUTION Pay attention to the mark on the Console port and be sure to plug the connector to the right port If the switch has been powered on First connect the DB 9 connecto...

Страница 30: ...30 CHAPTER 2 INSTALLING THE SWITCH...

Страница 31: ...g IP Information Viewing Automatically Configured IP Information Setting Up Command Line Interface Management Setting Up Command Line Interface Management using SSH Setting Up Web Interface Management...

Страница 32: ...re Shell version 2 0 SSHv2 0 allowing secure access to the switch s Command Line Interface If you use SSH to administer your switch and the network traffic is intercepted no passwords or configuration...

Страница 33: ...ver the Network Refer to Setting Up SNMP Management V1 or V2 on page 46 Setting Up Your Switch This section provides an overview of what you need to do to get your switch set up and ready for manageme...

Страница 34: ...address changing Your DHCP or BootP server does not allow you to allocate static IP addresses Static IP addresses are necessary to ensure that the switch is always allocated the same IP information Pl...

Страница 35: ...es refer to the Switch 4500G Configuration Guide on 3Com s Web site at www 3com com You should use DHCP to automatically configure the IP address infomration if Your network uses DHCP to allocate IP i...

Страница 36: ...communicate with the switch directly through the console port Documentation supplied with the terminal emulation software The console cable RJ 45 supplied with your switch You can find pin out diagra...

Страница 37: ...p the Switch with IP Information You are now ready to manually set up the switch with IP information using the command line interface 1 The command line interface login sequence begins as soon as the...

Страница 38: ...2007 3Com Corporation and its licensors Creation date Sep 5 2007 14 07 22 CPU Clock Speed 264MHz BUS Clock Speed 33MHz Memory Size 128MB Mac Address 0016e0d67c00 Press Ctrl B to enter Boot Menu 0 Aut...

Страница 39: ...aved automatically when the switch is powered down Username admin Password 4500G Apr 26 12 00 42 811 2000 4500G SHELL 4 LOGIN admin login from aux0 4500G New diagram for Figure 28 All rights reserved...

Страница 40: ...e 45 A Network Interface Card NIC A Category 5 twisted pair Ethernet cable with RJ 45 connectors at both ends A suitable Web browser Refer to Choosing a Browser on page 45 Existing IP address of the s...

Страница 41: ...dministration IP Setup and then follow the wizard through various system screens to enter the IP address and subnet mask that you want the switch to use when it is connected to the network The final p...

Страница 42: ...g Automatically Configured IP Information If you allow the switch to automatically configure its own IP information you need to discover and view the IP information before you can begin to manage the...

Страница 43: ...IP Information using the Console Port You are now ready to view the automatically allocated IP information using the command line interface 1 Connect your switch to the network using the Ethernet cab...

Страница 44: ...figured through the CLI using its console port CLI Management over the Network To manage a switch using the command line interface over a network using Telnet 1 Ensure you have already set up the swit...

Страница 45: ...h IP information as described in Methods of Managing a Switch on page 31 Ensure that the switch is connected to the network using a Category 5 twisted pair Ethernet cable with RJ 45 connectors A suita...

Страница 46: ...application running the Simple Network Management Protocol SNMP can manage a switch if The correct Management Information Bases MIBs are installed on the management workstation The management workstat...

Страница 47: ...ault passwords as soon as possible even if you do not intend to actively manage your switch Use the admin default user name no password to login and carry out initial switch setup To set a password fo...

Страница 48: ...48 CHAPTER 3 SETTING UP SWITCH MANAGEMENT...

Страница 49: ...e Solving Problems Indicated by LEDs Solving Hardware Problems Solving Communication Problems Solving Fabric Formation Problems If you experience a problem that is not listed here it may be included i...

Страница 50: ...this by checking that the Port LED is quickly flashing Yellow If a port fails the switch passes its Power On Self Test and continues to operate normally A Port LED is flashing yellow The port has fail...

Страница 51: ...t the failure select the display logbuffer command Web interface An indication of fan failure is provided through the Device Summary table for the specific unit In addition all Summary tables turn red...

Страница 52: ...s IP Addressing To be managed correctly each device on your network for example a switch or Hub must have a unique IP address IP addresses have the format n n n n where n is a decimal number between 0...

Страница 53: ...a group of IP addresses that have been set aside specially for use in house only Solving Fabric Formation Problems If you are having problems with correctly forming a fabric first ensure that Spanning...

Страница 54: ...54 CHAPTER 4 PROBLEM SOLVING...

Страница 55: ...PC Terminal Cable connector 25 pin male female only required if screen always required required for handshake Screen DTR TxD RxD CTS Ground DSR RTS DCD Screen DCD RxD TxD DTR Ground DSR RTS CTS Shell...

Страница 56: ...8 6 5 1 4 1 2 3 4 5 6 7 8 20 Switch 5500 Cable connector RJ 45 female RS 232 Modem Port Cable connector 25 pin male Pin Number 10 100 1000 Ports configured as MDI 1 Transmit Data Bidirectional Data A...

Страница 57: ...ed as MDIX 1 Receive Data Bidirectional Data B 2 Receive Data Bidirectional Data B 3 Transmit Data Bidirectional Data A 4 Not assigned Bidirectional Data A 5 Not assigned Bidirectional Data D 6 Transm...

Страница 58: ...58 APPENDIX A PIN OUTS...

Страница 59: ...ing Standards EN60068 to 3Com schedule Package testing paras 2 1 2 2 2 30 and 2 32 Operational testing paras 2 1 2 2 2 30 and 2 13 Safety Agency Certifications UL 60950 1 EN 60950 1 CSA 22 2 No 60950...

Страница 60: ...ing Standards EN60068 to 3Com schedule Package testing paras 2 1 2 2 2 30 and 2 32 Operational testing paras 2 1 2 2 2 30 and 2 13 Safety Agency Certifications UL 60950 1 EN 60950 1 CSA 22 2 No 60950...

Страница 61: ...ards EN60068 to 3Com schedule Package testing paras 2 1 2 2 2 30 and 2 32 Operational testing paras 2 1 2 2 2 30 and 2 13 Safety Agency Certifications UL 60950 1 EN 60950 1 CSA 22 2 No 60950 1 IEC 609...

Страница 62: ...rds EN60068 to 3Com schedule Package testing paras 2 1 2 2 2 30 and 2 32 Operational testing paras 2 1 2 2 2 30 and 2 13 Safety Agency Certifications UL 60950 1 EN 60950 1 CSA 22 2 No 60950 1 IEC 6095...

Страница 63: ...he Grounding Cable in PWR Units only shall comply with the following safety standards UL Subject 758 UL 1581 and CSA C22 2 No 210 UL VW 1 and CSA FT1 Vertical Flame Test Voltage Rating 600V AWG 18 Ins...

Страница 64: ...64 APPENDIX B TECHNICAL SPECIFICATIONS...

Страница 65: ...Online 3Com offers the following support tool 3Com Knowledgebase Helps you to troubleshoot 3Com products This query based interactive tool is located at http knowledgebase 3com com It contains thousa...

Страница 66: ...ginally purchased 3Com recommends that you buy an Express or Guardian contract a Software Upgrades contract or an equivalent support contract from 3Com or your reseller Support contracts that include...

Страница 67: ...umber Country Telephone Number Asia Pacific Rim Telephone Technical Support and Repair Australia Hong Kong India Indonesia Japan Malaysia New Zealand 1800 075 316 2907 0456 000 800 440 1193 001 803 85...

Страница 68: ...e Colombia Costa Rica Curacao Ecuador Dominican Republic 1 800 988 2112 0 810 444 3COM 1 800 998 2112 1 800 998 2112 1 800 998 2112 52 5 201 0010 1 800 998 2112 1 800 998 2112 0800 13 3COM 1 800 998 2...

Страница 69: ...Network Supervisor 3Com Network Supervisor 3NS is an easy to use management application that graphically discovers maps and monitors the network and links It maps devices and connections so you can e...

Страница 70: ...Network Director can help you manage your 3Com network and to download a trial version go to www 3com com 3nd 3Com Network Access Manager 3Com Network Access Manager is installed seamlessly into Micro...

Страница 71: ...naged These include SNMP capable devices such as switches routers security switches the 3Com VCX IP Telephony server and wireless access points Up to 250 devices Up to 1 000 devices Up to 5 000 device...

Страница 72: ...72 APPENDIX D 3COM NETWORK MANAGEMENT...

Страница 73: ...cord to the unit or by connecting the earth terminal on the rear of the unit to a reliable electrical earth or by connecting both It must be ensured that the earth connection is made before connecting...

Страница 74: ...tre confi e qu un personnel form et qualifi AVERTISSEMENT Ces instructions doivent tre lues conjointement avec les instructions d installation et les consignes de s curit qui accompagnent le RPS AVERT...

Страница 75: ...e sp cification Wichtige Sicherheitsinformationen VORSICHT Dieses Ger t besitzt mehrere Eing nge zur Stromversorgung Trennen Sie das Ger t zum Ausschalten von allen Stromquellen VORSICHT Die RPS Redun...

Страница 76: ...S Kabels und des Steckers des 3Com Switch in der ge ffneten Stellung Aus befindet VORSICHT Verwenden Sie mit den 3Com PoE Netzwerkswitches kein positiv geerdetes redundantes Standard Netzsystem mit 48...

Страница 77: ...e ADVERTENCIA aseg rese de que el disyuntor del RPS se encuentra en la posici n de abierto desactivado al conectar el cable al RPS ADVERTENCIA deber asegurarse de que el terminal positivo del Switch e...

Страница 78: ...io verificare la messa a terra AVVERTENZA tutti gli RPS devono essere approvati come dispositivi di uscita SELV non messi a terra in conformit con le norme IEC 60950 1 UL 60950 1 EN 60950 1 AVVERTENZA...

Страница 79: ...li dowolny prze cznik Switch 4210 jest zasilany z zasilacza RPS urz dzenie musi by uziemione Mo na to uzyska przez pod czenie przewodu zasilaj cego do urz dzenia lub przez pod czenie ko c wki uziemie...

Страница 80: ...IE Nie u ywa standardowego dodatnio uziemionego 48 woltowego nadmiarowego systemu zasilania odpowiedniego przy u yciu ze sprz tem telekomunikacyjnym wraz z prze cznikami siecio wymi firmy 3Com w techn...

Страница 81: ...m the receiver Plug the equipment into a different outlet so that equipment and receiver are on different branch circuits How to identify and resolve radio TV interference problems This booklet is ava...

Страница 82: ...82 APPENDIX E REDUNDANT POWER SUPPLY SAFETY INFORMATION...

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