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T E C H N I C A L S U P P O R T

10.2. Support from Your Network Supplier

If you require additional assistance, contact your network supplier. Many suppliers are authorized 3Com service
partners who are qualified to provide a variety of services, including network planning, installation, hardware
maintenance, application training, and support services.

When you contact your network supplier for assistance, have the following information ready:

Product model name, part number, and serial number

A list of system hardware and software, including revision levels

Diagnostic error messages

Details about recent configuration changes, if applicable

If you are unable to contact your network supplier, see the following section on how to contact 3Com.

10.3. Support from 3Com

If you are unable to obtain assistance from the 3Com online technical resources or from your network supplier,
3Com offers email and telephone technical support services. To find out more about your support options, email or
call the 3Com technical support services at the location nearest you.

10.3.1. Email Support

Some 3Com regions offer an email support service. To access this service for your region, use the appropriate URL
or email address from the list below.

Asia, Pacific Rim

From this region, email:

[email protected]

Europe, Middle East and Africa

Enter the URL:

http://emea.3com.com/support/email.html

Latin America

Spanish speakers, enter the URL:

h

ttp://lat.3com.com/lat/support/form.html

Portuguese speakers, enter the URL

: http://lat.3com.com/br/support/form.html

English speakers, email:

[email protected]

10.3.2. Telephone Support

When you contact 3Com for assistance, have the following information ready:

Product model name, part number, and serial number

A list of system hardware and software, including revision levels

Diagnostic error messages

Details about recent configuration changes, if applicable

Table 33 provides a list of worldwide technical telephone support numbers. These numbers are correct at the time of
publication. Refer to the 3Com Web site for updated information.

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Содержание Switch 7700

Страница 1: ...Switch 7700 Installation Guide http www 3com com Part No 10014180 Published July 2003 ...

Страница 2: ......

Страница 3: ...Power System 19 3 1 8 Fan Assembly 3C16856 19 3 1 9 Switch Specifications 19 Chapter 4 Preparing for Installation 23 4 1 Safety Information 23 4 1 1 General Safety Recommendations 23 4 1 2 Electrical Safety 23 4 1 3 Placement Safety 23 4 1 4 Preventing Electrostatic Discharge Damage 24 4 1 5 Laser Safety 24 4 2 Installation Site Requirements 25 4 2 1 Temperature Humidity 25 4 2 2 Cleanliness 25 4 ...

Страница 4: ...inal Parameters 37 6 3 Booting the Switch 7700 41 6 3 1 Powering up and Booting 41 Chapter 7 Software Maintenance 45 7 1 BOOT Menu 45 7 2 Upgrading Software Using Xmodem 46 7 3 Upgrading Software Using Ethernet 48 7 3 1 Upgrading Software Using TFTP 48 7 3 2 Upgrading Software Using FTP 49 7 4 Lost Passwords 50 Chapter 8 Hardware Maintenance 51 8 1 Replacing a Power Module 51 8 2 Replacing Cards 5...

Страница 5: ...Technical Services 55 10 1 1 World Wide Web Site 55 10 1 2 3Com Knowledgebase Web Services 55 10 1 3 3Com FTP Site 55 10 2 Support from Your Network Supplier 56 10 3 Support from 3Com 56 10 3 1 Email Support 56 10 3 2 Telephone Support 56 10 4 Returning Products for Repair 58 v ...

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Страница 7: ...ication system or device Warning Information that alerts you to potential personal injury Table 2 Text Conventions Convention Description Screen displays This typeface represents information as it appears on the screen Keyboard key names If you must press two or more keys simultaneously the key names are linked with a plus sign for example Press Ctrl Alt Del The words enter and type When you see t...

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Страница 9: ...ports and provides a total switching capacity of 64Gbps 2 1 2 Modular Hardware Architecture The Switch 7700 can be installed in a standard 19 inch wide cabinet The chassis includes slots for modules fan and power supplies The module area includes one Fabric module slot and 6 I O module slots The Fabric module is mandatory I O modules are optional The power supply area includes 3 power slots The sw...

Страница 10: ...t 10 100BASE T auto sensing FE module 48TX 3C16860 2 1 4 Software Features The Switch 7700 software delivers complete networking solutions such as routing protocols VLAN control QoS and network management 2 1 5 Maintenance The Switch 7700 provides the following convenient maintenance functions Management options Telnet console and remote modem dial up Fault diagnosis tools port self loop port acti...

Страница 11: ... The power area is on the bottom of the chassis and supports up to three sources for AC power 3 1 2 Switch Backplane The Switch 7700 backplane is part of the integrated chassis and delivers high speed data transfer between the Fabric and I O modules The backplane bandwidth capacity is 120Gbps The backplane supports the following functions Interconnection of various signals between modules and prov...

Страница 12: ...button a console port a 10BASE T 100BASE TX port and 11 LEDs that show the status of the I O modules Fabric power modules and fan frame as shown in Figure 3 Figure 3 The Fabric 3C16857 front panel 3C 16857 LI NK ACT C O N S O LE 10 100BA S E TX RESET O K FAI L FAN PW R1 PW R2 RUN PW R3 LPU1 LPU2 LPU3 LPU4 LPU5 LPU6 SRPU ALM 3 1 4 Reset Button The reset button resets the entire system 3 1 5 Console...

Страница 13: ...net ports Table 6 Description of the 10 100BASE T port LEDs Indicator State description LINK Off the line has not connected Green the line is connected ACTIVE Green there is no data transmitted Green Flashing data is being transmitted or received Module LEDs The MOD1 to MOD 6 LEDs show the state of the I O modules as described in Table 7 Table 7 Description of module LEDs Indicator State descripti...

Страница 14: ... sensing FE module 48T 3C16860 Consider the following when selecting I O modules You can configure several I O modules of the same type All 6 I O module slots are the same and any combination of I O modules can be inserted You should select I O module port cables that are compatible with each installed I O module 48 port 10 100BASE T Auto sensing FE Card 48T 3C16860 The 48T module provides 48 exte...

Страница 15: ... is being transmitted or received The 48T panel and LEDs are illustrated in Figure 5 Figure 5 The 48T 3C16860 panel 3C 16860 The 48T module requires two Category 5 twisted pairs of 100 ohm cable with an RJ 45 connector plug for transmission within 100 meters 300 feet 8 port 1000BASEX GBIC GE Card 8GBIC 3C16858 The 8GBIC module provides 8 external Gigabit GBIC module ports A GBIC module is used for...

Страница 16: ... LED Indicator State description Green LINK The port is connected to another port Off LINK The port has not been connected to any other port LINK ACT Green Flashing Data is being transmitted or received via the port The cables for each of the supported 8GBIC modules are described in Table 13 Table 13 Description of the module port cables GBIC Module Type Central Wave Length Connector Type Fiber In...

Страница 17: ...m The cable has a maximum transmission distance of 100m Compliance IEEE 802 3ab IEEE802 3 IEEE802 3u IEEE802 3x Each port on the 8BT module has 2 LEDs as shown in Figure 9 Figure 9 The 8 port 10 100 1000BASE T GE module panel 3C 16859 Table 15 describes the LEDs on the 8BT module Table 15 The 8 port 10 100 1000BASE T GE module LEDs Indicator State description LINK Off the link is not connected Gre...

Страница 18: ...5 125µm multi mode optical fiber is used for transmission within 2km Compliance IEEE 802 3 IEEE 802 3i IEEE 802 3u IEEE 802 3x Each 100M optical port has a green LED as shown in Figure 11 Figure 11 The 24FX 3C16861 panel 3C 16861 Table 17 describes the states of the FX24 module LEDs Table 17 Description of the 24FX 3C16861 LEDs Indicator State description Green LINK The port has been connected wit...

Страница 19: ... and an AC distribution box The AC power module is connected to the external power source through an AC socket and is connected to the backplane Specifications for the AC power module are listed in Table 19 Table 19 AC power module specifications Item AC power module AC input 100V to 240V 47 to 63Hz Maximum output power 460W 3 1 8 Fan Assembly 3C16856 The fan assembly shown in Figure 12 is install...

Страница 20: ... Switching mode Store and Forward mode MAC address table Address self learning Complies with IEEE 802 1D standard and supporting port lock Address table up to 32K MAC Media Access Control address STP RSTP Complies with IEEE 802 1D 802 1w Standard Traffic control IEEE 802 3x traffic control full duplex Back pressure Based Flow Control half duplex Link aggregation 8 port GBIC GE optical module 8GBIC...

Страница 21: ...P port number ToS Type of Service Diffserv value and CAR Committed Access Rate The granularity of bandwidth management is 64kbps Priority based on VLAN port IEEE 801 1P and ToS Diffserv Support traffic classification to set CoS Class of Service 8 egress queues for each port Queue dispatching algorithm FIFO First In First Out and PQ Priority Queuing Load and upgrade system software Xmodem protocol ...

Страница 22: ......

Страница 23: ...om high traffic areas Do not wear loose clothing jewelry or other objects that could get caught in the chassis when you install and maintain the switch Wear safety glasses when working under any conditions that might be hazardous to your eyes Do not perform any action that creates a potential hazard to people or makes equipment unsafe 4 1 2 Electrical Safety To maintain electrical safety review th...

Страница 24: ...e should be between 1 and 10 megohm Mohm Always wear an anti static wrist strap when installing the parts especially the electronic printed circuit boards of the switch Grasp only the edge of the circuit board Do not touch the components or the electric printed circuit Avoid contact between the electric printed circuit board and your clothing The anti static wrist strap protects only the board fro...

Страница 25: ... the poor contact of the connector or metal contact point This happens more frequently when the relative indoor humidity is low which not only shortens the service life of the switch but also causes system failure The required specifications on dust content and particle diameter in an equipment room is shown in Table 22 Table 22 Equipment room dust specifications Maximum diameter µm 0 5 1 3 5 Maxi...

Страница 26: ...e grounding resistance when necessary 4 2 5 Grounding A good grounding system is necessary for a switch to work reliably and the important guarantee of lightning protection anti interference and anti static You should provide a grounding system for the switch to insure that Contact resistance of the grounding bar is less than 0 1 ohm it must pass the test of 12V 25A The grounding resistance value ...

Страница 27: ...cleaner Fastening tools Flat blade screwdriver P4 75mm Phillips screwdriver P1 100mm P2 150mm and P3 250mm Socket wrench M5 Box end wrench M6 Box end wrenches 10 12 or open end wrench 10 12 General tools Small tools Sharp nose pliers diagonal pliers vices hand held electric drill file handsaw crowbar and rubber hammer Special tools Anti static wrist strap cable stripper crimping pliers RJ 45 crimp...

Страница 28: ......

Страница 29: ...5 1 2 Installing on a Workbench Before you install the Switch 7700 on a workbench verify that The workbench is firm enough to hold the switch and cables There are no obstacles around the workbench The switch is ready for installation and has been carried to a place near the workbench 1 Have two people carry the switch at both sides to the place in front of the workbench 2 Carry the switch a little...

Страница 30: ...bar of the switch Warning For the safety of personnel and equipment the switch must be well grounded The resistance between switch chassis and the ground should be less than 1 ohm 5 4 Connecting Power Cords To connect the AC power cord 1 Plug the AC power cord into the socket in the switch and hook the cord plug 2 Plug the other end into a socket strip with surge protector Connect the strip to the...

Страница 31: ...console and AUX cables to the Switch 7700 5 6 1 Console Cable The console cable is an 8 core shielded cable One end of the cable has a crimped RJ 45 connector which is plugged into the console port of the switch The other end has both a DB 9 hole connector and a DB 25 hole connector for connection to a 9 or 25 hole serial port at the configuration terminal Figure 16 illustrates the console cable a...

Страница 32: ...g into the switch at the console port The other end has both a DB 9 pin connector and a DB 25 pin for connection to a 9 or 25 hole serial port on the virtual modem Figure 17 illustrates the AUX cable Figure 17 The AUX cable Enlarged A side Pos 1 Pos 25 DB25 Male A DB9 Male Label 8P8C PLUG B Enlarged B side Pos 1 Pos 8 Enlarged C side Pos 9 Pos 1 C Table 26 AUX cable pin outs RJ 45 Signal Direction...

Страница 33: ...T Pinout Signal Function Signal Function 1 Tx Send data BIDA Send data to direction A 2 Tx Send data BIDA Receive data from direction A 3 Rx Receive data BIDB Send data to direction B 4 Reserved BIDC Receive data from direction C 5 Reserved BIDC Send data to direction C 6 Rx Receive data BIDB Receive data from direction B 7 Reserved BIDD Send data to direction D 8 Reserved BIDD Receive data from d...

Страница 34: ...rom the optical port Do not stare into the optical port directly Cover the optical port if there is no connector plugged in SC fiber connector The 8GBIC port uses an SC fiber connector shown in Figure 19 Figure 19 The SC fiber connector 1 Plug one end of the SC fiber connector into the optical port in the module 2 Connect the other end of the connector to the corresponding device Caution When conn...

Страница 35: ...you have turned off the power before checking your installation Improper connections can injure people or damage components of the switch Table 29 Installation check list Item Normal Abnormal Remarks Anti static wrist strap console cable Ground wire Power cord FABRIC I O Module Fan frame 35 ...

Страница 36: ......

Страница 37: ...ing the Switch 7700 to a PC Console cable Switch PC 1 Plug the DB 9 or DB 25 female plug of the console cable into the serial port of the PC or the terminal where the switch is to be configured 2 Connect the RJ 45 connector of the console cable to the console port of the switch 6 2 Setting Terminal Parameters To set terminal parameters 1 Start the PC and select Start Programs Accessories Communica...

Страница 38: ... and click OK The dialog box shown in Figure 23 displays Select the serial port to be used from the Connect using dropdown menu Figure 23 Properties dialog box 4 After selecting serial ports click OK The port shown in Figure 24 displays and you can set serial port parameters Set the following parameters Baud rate 9600 Databit 8 Parity check none Stopbit 1 38 ...

Страница 39: ... N F I G U R I N G A N D B O O T I N G S O F T W A R E Flow control none Figure 24 COM1 Properties dialog box 5 Click OK The HyperTerminal dialogue box displays as shown in Figure 25 6 Select Properties 39 ...

Страница 40: ...U R I N G A N D B O O T I N G S O F T W A R E Figure 25 HyperTerminal window 7 In the Properties dialog box select the Settings tab as shown in Figure 26 8 Select VT100 in the Emulation dropdown menu 9 Click OK 40 ...

Страница 41: ...he voltage of power supply can meet the requirements on the switch The console cable has been connected properly The PC or terminal for configuration has been started The configuration parameters have been set 6 3 1 Powering up and Booting Turn on the power for the Switch 7700 and run the BootROM program The terminal displays the following information Starting RAM Line OK System is booting 41 ...

Страница 42: ...nished Switch chip selftest OK CPLD selftest OK The switch Mac address is 00E0 FC00 7505 Press Ctrl B to enter Boot Menu 5 Note To enter Boot Mode see Chapter 6 press Ctrl B during the 5 seconds that Press Ctrl B to enter Boot Menu 5 is displayed To perform decompression immediately press ESC while this message is displayed If you do nothing the system enters the following auto booting port within...

Страница 43: ... N D B O O T I N G S O F T W A R E 43 The display of these messages indicates the completion of the switch auto booting Press Enter and the terminal screen displays 3Com You can now begin the configuration for the Switch 7700 ...

Страница 44: ......

Страница 45: ...C8260 CPU Clock Speed 200MHz BUS Clock Speed 66MHz Memory Size 128MB SW 7700 main board self testing 60X_SDRAM Data lines Selftest OK 60X_SDRAM Address lines Selftest OK 60X_SDRAM fast selftest OK LOCAL_SDRAM Data lines Selftest OK LOCAL_SDRAM Address lines Selftest OK LOCAL_SDRAM fast selftest OK Please check leds Led selftest finished Switch chip selftest OK CPLD selftest OK Press Ctrl B to ente...

Страница 46: ... CRC When there is a packet error retransmission is supported normally 10 times The Xmodem protocol completes transmission by receiving and sending programs The receiving program first sends the negotiating characters to negotiate the check means After passing the negotiation the sending program begins to send the packet The receiving program checks the packet according to the negotiated means aft...

Страница 47: ...tware 8 After the baud rate setting at the configuration terminal is completed disconnect the terminal and reconnect it 9 Press Enter to start downloading The terminal displays the following information Now please start transfer file with XMODEM protocol If you want to exit Press Ctrl X Waiting CCCCC Note After the terminal baud rate is modified you must disconnect and then re connect the terminal...

Страница 48: ...he server and sends the acknowledgement to the server To upload files the client sends a write request packet to the TFTP server sends the data packet to the server and receives the acknowledgement from the server There are two modes of TFTP transmission files the binary mode used for transmitting program files and ASCII mode used for transmitting text files Switch 7700 provides the functions of t...

Страница 49: ...g the program Enter Y and press Enter the system begins downloading programs After the downloading is completed the system starts write flash operation Upon completion of this operation the terminal display outputs the following information indicating that the downloading is completed Loading done Writing to flash done 7 3 2 Upgrading Software Using FTP Through the Ethernet port the Switch 7700 ca...

Страница 50: ...rotocol parameters Load File name Switch IP address Server IP address FTP User Name FTP User Password 10 Press Enter The following question displays Are you sure to download file to flash Yes or No Y N 11 If you enter N the system returns to downloading program menu If you enter Y the system downloads the file performs the write flash operation and displays the following information to indicate th...

Страница 51: ...k the input mode 6 Support the module in one hand and hold the handle with another hand Align the module with the guides in the chassis and slide the module gently into the slot Ensure the module matches well with the guides Caution As you are inserting the power module if the pin terminal springs up the pin cannot be seated into the hole and the system will sound an alarm If the power module has ...

Страница 52: ...on the handle bar into the positioning hole in the chassis 4 Fasten the captive screws to fix the module using the screwdriver 8 3 Replacing the Fan Assembly As mentioned in Maintenance on page 10 you can hot swap fan assemblies in the Switch 7700 Warning To avoid injury do not touch any naked wire terminal or any part of the product that carries a dangerous voltage To replace a fan assembly 1 Put...

Страница 53: ...ion displayed on the terminal check that The power system is working normally The Fabric is working normally The console cable has been connected to the console port in the Fabric If this procedure does not reveal the problem check that the console cable is properly connected and that the configuration terminal is set correctly 9 1 2 The displayed characters are illegible If the displayed characte...

Страница 54: ...led yet FAIL On the fan fails to work Off the fan works normally or has not been installed yet 9 4 Troubleshooting the Cards The Fabric and I O module LEDs show the states of the FABRIC and the 6 I O modules as described in Table 32 If the LED ALM of the module remains green or green flashing it indicates there is something wrong with the module During the process of resetting the module the ALM L...

Страница 55: ...ell as support options that range from technical education to maintenance and professional services 10 1 2 3Com Knowledgebase Web Services The 3Com Knowledgebase is a database of technical information to help you install upgrade configure or support 3Com products The Knowledgebase is updated daily with technical information discovered by 3Com technical support engineers This complimentary service ...

Страница 56: ...To find out more about your support options email or call the 3Com technical support services at the location nearest you 10 3 1 Email Support Some 3Com regions offer an email support service To access this service for your region use the appropriate URL or email address from the list below Asia Pacific Rim From this region email apr_technical_support 3com com Europe Middle East and Africa Enter t...

Страница 57: ...2632 199 161346 800 29880 0900 777 7737 815 33 047 00800 441 1357 707 200 123 0800 991196 9 021 60455 07711 14453 08488 50112 0870 241 3901 Latin America From the Caribbean Central and South America call Antigua Argentina Aruba Bahamas Barbados Belize Bermuda Bonaire Brazil Cayman Chile Colombia Costa Rica Curacao Ecuador Dominican Republic Guatemala Haiti Honduras Jamiaca Martinique Mexico Nicara...

Страница 58: ...aly Luxembourg Netherlands Norway Poland Portugal South Africa Spain Sweden Switzerland U K 44 0 1442 435529 01 7956 7124 070 700 000 070 700 770 7010 7289 01080 2783 0825 809 622 01805 404 747 06800 14466 1800 509359 1800 943 2632 199 161346 800 29880 0900 777 7737 815 33 047 00800 441 1357 707 200 123 0800 991196 9 021 60455 07711 14453 08488 50112 0870 241 3901 USA and Canada 1 800 876 3266 1 5...

Страница 59: ...guay Peru Puerto Rico Salvador Trinidad and Tobago Uruguay Venezuela Virgin Islands AT T 800 998 2112 AT T 800 998 2112 54 11 4894 1888 AT T 800 998 2112 1 800 998 2112 AT T 800 998 2112 1 800 998 2112 AT T 800 998 2112 AT T 800 998 2112 57 1 657 0888 59 ...

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