3Com Switch 4500 PWR 50-Port - Manuals

A BOUT T HIS G UIDE This guide provides all the information you need to install and use the following switches in their default state: ■ Switch 4500 26-Port (3CR17561-91) ■ Switch 4500 50-Port (3CR17562-91) ■ Switch 4500 PWR 26-Port (3CR17571-91) ■ Switch 4500 PWR 50-Port (3CR17572-91) All procedure...

8 A BOUT T HIS G UIDE Conventions Table 1 lists conventions that are used throughout this guide. Related Documentation In addition to this guide, each Switch documentation set includes the following: ■ Switch 4500 Configuration Guide This guide contains information on the features supported by your ...

Documentation Comments 9 Please include the following information when commenting: ■ Document title ■ Document part number (on the title page) ■ Page number (if appropriate) Example: Part Number 10015034 Rev. AB Switch 4500 Family Getting Started Guide Page 21 We can only respond to comments and que...

1 I NTRODUCING THE S WITCH 4500 F AMILY This chapter contains introductory information about the Switch 4500 and how it can be used in your network. It covers summaries of hardware and software features and also the following topics: ■ About the Switch 4500 ■ Switch 4500 — Front View Detail ■ Switch...

12 C HAPTER 1: I NTRODUCING THE S WITCH 4500 F AMILY About the Switch 4500 The Switch 4500 Family are mixed media devices. Table 2 summarizes what each Switch consists of: Table 2 Switch 4500 Family Hardware * Combo SFP and 10/100/1000 Ports † 1000BASE-T SFP transceiver installed in last two 1000BAS...

Switch 4500 — Front View Detail 13 Summary of Hardware Features Table 3 summarizes the hardware features that are supported by the Switch 4500. Table 3 Hardware Features Switch 4500 — Front View Detail Figure 1 Switch 4500 26-Port — front view Feature Switch 4500 Addresses Up to 8,000 supported Auto...

14 C HAPTER 1: I NTRODUCING THE S WITCH 4500 F AMILY Figure 2 Switch 4500 50-Port — front view Figure 3 Switch 4500 26-Port PWR - front view Figure 4 Switch 4500 50-Port PWR - front view WARNING: RJ-45 Ports. These are shielded RJ-45 data sockets. They cannot be used as standard traditional telephon...

Switch 4500 — Front View Detail 15 10BASE-T/ 100BASE-TX Ports The Switch 4500 has 24 or 48 auto-negotiating 10BASE-T/100BASE-TX ports configured as Auto MDIX (cross-over). These ports automatically provide the appropriate connection. Alternatively, you can manually set these ports to 10BASE-T half-d...

16 C HAPTER 1: I NTRODUCING THE S WITCH 4500 F AMILY Two 1000Base-T SFP transceivers are included with these units. These SFP transceivers can be inserted in any of the four SFP slots to provide copper Gigabit connectivity. If you install these in the inactive ports, then you will need to issue the ...

Switch 4500 — Front View Detail 17 Unit LED The Unit LED is a seven segment display visible on the front of the Switch. The Unit LED can be used to indicate the unit number in a fabric, POST test ID and software upgrade information. In the unlikely event of a hardware fault occurring, the Unit LED m...

18 C HAPTER 1: I NTRODUCING THE S WITCH 4500 F AMILY RPS LED (3CR17571-91 and 3CR17572-91 only) Green AC and RPS supply connected. Yellow AC failed or not connected. RPS supply is OK. Off There is no RPS supply connected. 10BASE-T/100-TX Port LEDs Speed Green A high speed (100 Mbps) link is present,...

Switch 4500 — Rear View Detail 19 Switch 4500 — Rear View Detail Figure 5 Switch 4500 — rear view Figure 6 Switch 4500 PWR - rear view Power Socket The Switch automatically adjusts its power setting to any supply voltage in the range 100-240 VAC. Open Book Warning Labels Before installing or removin...

20 C HAPTER 1: I NTRODUCING THE S WITCH 4500 F AMILY AVVERTENZA: Prima di installare o rimuovere qualsiasi componente dello Switch 4500 Family o di eseguire qualsiasi procedura di manutenzione, leggere le informazioni di sicurezza riportate nell'Appendice A di questa guida. OSTRZE Ż ENIE: Przed inst...

Default Settings 21 Traffic Prioritization All ports prioritize NBX VoIP traffic (LAN and IP). All ports set to “best effort” for all other traffic. Port Security Disabled per port Configuration Save and Restore Disabled Feature Switch 4500

2 I NSTALLING THE S WITCH This chapter contains supplemental information on setting up your Switch 4500. These details are intended to be read together with the printed documents that accompany your switch. Package Contents ■ Switch unit ■ Unit Information Labels ■ Warranty Information ■ RPS Flyer ■...

24 C HAPTER 2: I NSTALLING THE S WITCH Important Steps Before Proceeding Before proceeding, make sure to access the Switch 4500 information on 3Com’s Web site at www.3Com.com and: ■ Read the document entitled “3Com Switch Family Safety and Regulatory Information,” which contains information on how t...

Connecting a Redundant Power Supply to your Switch 4500 PWR 25 with the 3Com Power-over-Ethernet (PoE) network switches. In order to meet the IEEE 802.3af (PoE) specification, the -48V output must be isolated from earth (ground) and meet the isolation requirements in that specification.

26 C HAPTER 2: I NSTALLING THE S WITCH WARNING: Any RPS must be approved as a SELV output in accordance with IEC 6 0 9 50-1/UL 6 0 9 50-1/EN 6 0 9 50-1. WARNING: The characteristics of the Switch 4500 DC supply input are given in Appendix B on page 91 . The Switch 4500 PWR units can be powered in th...

Connecting a Redundant Power Supply to your Switch 4500 PWR 27 Table 6 Switch Power Inputs Specifying the Redundant Power System 3Com’s redundant power solution allows the use of any off-the-shelf -48V DC RPS that meets the requirements defined in Appendix B on page 91. For an approved vendor list, ...

28 C HAPTER 2: I NSTALLING THE S WITCH Table 7 Power Availability The -48V DC power distribution provides the mechanism to connect to the Switch 4500 PWR. The distribution consists of a number of circuit breakers and connection terminals for the positive (common) and negative -48V outputs. Each Swit...

Connecting a Redundant Power Supply to your Switch 4500 PWR 29 WARNING: Ensure that the circuit breaker in the RPS is in the open (off) position when connecting the cable to the RPS and the cable and connector to the Switch. WARNING: You must ensure that the positive terminal on the Switch is connec...

30 C HAPTER 2: I NSTALLING THE S WITCH The -48V DC power will take priority over the AC mains and will power the Switch if it is connected. Connecting the Earthing Cable Use the earthing cable that accompanies your Switch if the length is suitable. Alternatively use the earthing cable specification ...

Connecting a Redundant Power Supply to your Switch 4500 PWR 31 network cable is required to provide both power and network connectivity. ■ Increased Reliability — a device powered by a PoE Switch will be able to take advantage of the facilities available to the Switch. The Switch can be fitted with ...

32 C HAPTER 2: I NSTALLING THE S WITCH The Power-up Sequence The following sections describe how to get your Switch 4500 powered-up and ready for operation. Powering-up the Switch 4500 Use the following sequence of steps to power-up the Switch. 1 Plug the power cord into the power socket at the rear...

The Power-up Sequence 33 Choosing the Correct Cables for the 1000BASE-X SFP Ports The 1000BASE-SX SFP transceiver supports a direct connection to a multi-mode fiber-optic cable. The 1000BASE-LX SFP transceiver supports a direct connection to single-mode and multi-mode fiber-optic cables. The 1000BAS...

34 C HAPTER 2: I NSTALLING THE S WITCH SFP Operation The following sections describes how to select and use an SFP transceiver in an SFP port. Approved SFP Transceivers The following list of approved Gigabit Ethernet SFP transceivers is correct at the time of publication. ■ 3CSFP91 SFP (1000BASE-SX)...

SFP Operation 35 Inserting an SFP Transceiver Use the following sequence of steps to activate the SFP ports: SFP transceivers are hot-insertable and hot-swappable. You can remove them from and insert them into an appropriate SFP port without having to power down the Switch. 1 The SFP transceiver is ...

36 C HAPTER 2: I NSTALLING THE S WITCH Packing and Shipping the Switch 4500 This section describes how to correctly package your Switch 4500 should you need to return the Switch to 3Com. WARNING: The unit should be packaged safely to ensure that you do not invalidate the repair. Follow these steps t...

38 C HAPTER 3: S ETTING U P FOR M ANAGEMENT Methods of Managing a Switch To manage your Switch you can use one of the following methods: ■ Command line interface management ■ Command line interface management using SSH ■ Web interface management ■ SNMP management Command Line Interface Management Ea...

Methods of Managing a Switch 39 Command Line Interface Management using SSH The Switch 4500 supports Secure Shell version 2.0 (SSHv2.0), allowing secure access to the Command Line Interface of the Switch. If you use SSH to administer your Switch and the network traffic is intercepted, no passwords o...

40 C HAPTER 3: S ETTING U P FOR M ANAGEMENT Setting Up Overview This section gives an overview of what you need to do to get your Switch set up and ready for management when it is in its default state. The whole setup process is summarized in Figure 14. Detailed procedural steps are contained in the...

Setting Up Overview 41 CAUTION: To protect your Switch from unauthorized access, you must change all three default passwords as soon as possible, even if you do not intend to actively manage your Switch. For more information on default users and changing default passwords, see “Default Users and Pas...

42 C HAPTER 3: S ETTING U P FOR M ANAGEMENT For a detailed description of how automatic IP configuration operates, refer to the Configuration Guide available on 3Com’s Web Site at www.3com.com. You should use the automatic IP configuration method if: ■ your network uses DHCP to allocate IP informati...

Manually Configuring IP Information 43 Manually Configuring IP Information You can manually configure the Switch IP information in the following ways: ■ Connecting to the console port — connect a workstation using a console cable to the console port of the Switch. You can then manually enter IP info...

44 C HAPTER 3: S ETTING U P FOR M ANAGEMENT Connecting the Workstation to the Switch 1 Connect the workstation to the console port using the console cable as shown in Figure 15. Figure 15 Connecting a Workstation to the Switch via the Console Port To connect the cable: a Attach the RJ-45 connector o...

Manually Configuring IP Information 45 2 At the login and password prompts, enter admin as your user name and press Return and at the password prompt press Return again. If you have logged on correctly, <4500> should be displayed as shown in Figure 16. Once you have logged in you will automati...

46 C HAPTER 3: S ETTING U P FOR M ANAGEMENT If you do not intend to use the command line interface via the console port to manage the Switch, you can disconnect the serial cable and close the terminal emulator software. Connecting to a Front Panel Port To set up your Switch manually you can, alterna...

Manually Configuring IP Information 47 Connecting the Workstation to the Switch 1 Connect the workstation to a front panel port using an Ethernet cable as shown in Figure 17. Figure 17 Connecting a Workstation to the Switch via a Front Panel Port To connect the cable: a Attach an RJ-45 connector at ...

48 C HAPTER 3: S ETTING U P FOR M ANAGEMENT 4 To enter basic setup information for the Switch, select Administration > 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. Th...

Viewing Automatically Configured IP Information 49 Figure 18 User View Login via Telnet 4 Enter the system-view command and Enter . 5 Enter interface vlan 1 and Enter . 6 Enter the IP address and subnet mask for the Switch as follows: ip address xxx.xxx.xxx.xxx mmm.mmm.mmm.mmm (where xxx.xxx.xxx.xxx...

50 C HAPTER 3: S ETTING U P FOR M ANAGEMENT ■ Connecting to the Console Port — connect a workstation using a console cable to the console port of the Switch. You can then view the IP information automatically assigned to the Switch using the command line interface (CLI). Using 3Com Network Director ...

Viewing Automatically Configured IP Information 51 If the login prompt does not begin immediately, press Return a few times until it starts. 3 At the login and password prompts, enter admin as your user name and press Return at the password prompt. If you have logged on correctly, <4500> is di...

52 C HAPTER 3: S ETTING U P FOR M ANAGEMENT Setting Up Command Line Interface Management This section describes how you can set up command line interface management using a local console port connection or over the network. User Interface Overview User interface configuration is provided by the Swit...

Setting Up Command Line Interface Management using SSH 53 (where xxx.xxx.xxx.xxx is the IP address of the Switch) If opening a Telnet session via third party software you will need to enter the IP address in the format suitable for that software. 5 At the login and password prompts, enter admin as y...

54 C HAPTER 3: S ETTING U P FOR M ANAGEMENT 5 Open an SSH session and access the Switch using the Switch’s IP address and port number. The first time you connect to the switch the client will ask you to confirm that the host key is correct for the device. 6 The Switch and the SSH client will authent...

Setting Up SNMP Management V1 or V2 55 For the browser to operate the web interface correctly, JavaScript™ and Cascading Style Sheets must be enabled on your browser. These features are enabled on a browser by default. You will only need to enable them if you have changed your browser settings. Web ...

56 C HAPTER 3: S ETTING U P FOR M ANAGEMENT Pre-requisites ■ Documentation supplied with the SNMP network management application software. The default read community string is public . To change this setting in System View, enter display snmp community. The default write community string is private ...

Default Users and Passwords 57 Use the admin default user name (no password) to login and carry out initial Switch setup. To set a password for the admin user in the CLI, enter the following from system view: [4500] local-user admin <cr> [4500-luser-admin] password simple xxxxxxxx (where xxxxx...

4 C REATING A S TACK This chapter contains the information you need to create a stack. It covers the following topics: ■ How To Interconnect Units ■ Guidelines For Interconnecting Units ■ Unit Numbering within the Stack How To Interconnect Units Up to eight 3Com Switch 4500 units can be interconnect...

60 C HAPTER 4: C REATING A S TACK As with all Switch 4500 CLI commands, the format for entering a port- specific command is x/y/z, where x = unit number, y = module number (in the case of the Switch 4500 this will always be 0), z = port number. 3 Connect the stack-enabled ‘up’ port on one Switch 450...

Unit Numbering within the Stack 61 ■ When a port is operating in stack mode it will no longer be configurable in the normal way, that is, you cannot control port features such as auto-negotiation, VLANs, static addresses, STP, Aggregated Links, Resilient Links, and so on. However, it is possible to ...

62 C HAPTER 4: C REATING A S TACK Renumbering only occurs when the stack is next power cycled if the units are configured to auto-number. The unit LEDs will display the unit number in the stack, from 1 to 8. If you are having problems, refer to “Solving Stack Formation Problems” on page 69.

64 C HAPTER 5: P ROBLEM S OLVING Solving Problems Indicated by LEDs If the LEDs on the Switch indicate a problem, refer to the list of suggested solutions below. The PWR LED does not light Check that the power cable is firmly connected to the Switch and to the supply outlet. If the connection is sec...

Solving Hardware Problems 65 Auto-negotiation problems will occur with 10BASE-T or 100BASE-T where auto-negotiation is disabled and incorrect cables are being used (cross-over or straight) Auto-negotiation problems will occur with fiber if: ■ The Receiver (RX) and Transceiver (TX) cable connectors a...

66 C HAPTER 5: P ROBLEM S OLVING 3 Power cycle the unit. To do this, remove and reconnect the AC mains supply. If the unit has no AC main supply, remove and reconnect the DC RPS supply. 4 If another fan failure warning message is generated via the Command Line Interface or the Web interface, return ...

Solving Communication Problems 67 Solving Communication Problems If you experience communication problems with the Switch, ensure that: ■ The Switch IP address and Management VLAN ID has been configured. ■ If the Switch is separated from your management application by a router, ensure that the defau...

68 C HAPTER 5: P ROBLEM S OLVING If your IP network is internal to your organization only, that is, you do not access the Internet, you may use any arbitrary IP address as long as it is not being used by another device on your network. 3Com suggests you use addresses in the range 192.168.0.0 to 192....

Solving Stack Formation Problems 69 Solving Stack Formation Problems If you are having problems with correctly forming a stack, first ensure that Spanning Tree is enabled. If it is enabled, do the following: 1 Power off all units in the stack. 2 Check all the cable connections in the stack. 3 Check ...

6 U PGRADING S OFTWARE This chapter describes how to upgrade software to your Switch 4500. It covers the following topics: ■ The Contents of the Executable File ■ Upgrading from the Command Line Interface ■ Upgrading from the Bootrom Interface ■ Bootrom Upgrade

72 C HAPTER 6: U PGRADING S OFTWARE The Contents of the Executable File The self extracting executable file (xxxxxxxx.exe — where xxxxxxxx is the file name of your Switch) contains the following: ■ End User License ■ Release Notes ■ Application Software ■ Web Software ■ Bootrom Software ■ Bundled Fi...

74 C HAPTER 6: U PGRADING S OFTWARE To check that deleted files have been removed from the recycle-bin for the remaining units in a fabric, replace unit1 with unit2 and so on for each Switch in the fabric. Backup The following steps enable you to backup each Switch in the fabric: 1 To back up the de...

Upgrading from the Command Line Interface 75 3 To download the default configuration file, enter: tftp aaa.aaa.aaa.aaa get 3ComOScfg.def 4 To download the bootrom file, enter: tftp aaa.aaa.aaa.aaa get s3o002_012_000.btm The bootrom firmware may not require upgrading for every software upgrade, there...

76 C HAPTER 6: U PGRADING S OFTWARE To set the remaining Switches in the fabric to boot from the new software, replace unit1 with unit2 and so on for each Switch in the fabric. 2 To set the Switch to load the new bootrom firmware, enter: boot bootrom unit1>flash:/s3o002_012_000.btm To set the rem...

Upgrading from the Command Line Interface 77 200 PORT command successful.150 Opening ASCII mode data connection for vrpcfg.def(10986 bytes).......226 Transfer complete. FTP: 10986 byte(s) received in 8.046 second(s) 1000.00 byte(s)/sec. 3 Enter quit to exit. XModem (via the console cable) To upgrade...

78 C HAPTER 6: U PGRADING S OFTWARE Upgrading from the Bootrom Interface This section describes how to upgrade your Switch from the Bootrom Interface. Introduction When the Switch is running the initial boot phase via the console, the following prompt is displayed with a five second countdown timer:...

Upgrading from the Bootrom Interface 79 3 Select option 3 from the Boot Menu. A file list similar to the following is displayed: Boot menu choice: 3 Free Space: 10469376 bytes The current application file is s3n03_01_00s168.app(*)-with main attribute; (b)-with backup attribute(*b)-with main and back...

80 C HAPTER 6: U PGRADING S OFTWARE TFTP To upgrade software to your Switch via TFTP, do the following: 1 From the Boot Menu, select option 1 (Download application file to flash) to display the following: 1. Set TFTP protocol parameter 2. Set FTP protocol parameter 3. Set XMODEM protocol parameter 0...

Upgrading from the Bootrom Interface 81 Server IP address: FTP User Name: FTP User Password: 3 Enter the file name, Switch IP address, Server IP address and FTP user name and password to display the following: Are you sure to download file to flash? Yes or No(Y/N) 4 Enter y and the following informa...

82 C HAPTER 6: U PGRADING S OFTWARE Now please start transfer file with XMODEM protocol If you want to exit, Press <Ctrl+X> Loading...CCCCCCCCCCCCCCCCCCCCCCCCCCCCC 5 As the file is downloading, start the XModem send file process with terminal emulation software, such as Microsoft Hyperterminal...

Bootrom Upgrade 83 Bootrom Upgrade via TFTP To upgrade the bootrom firmware from the Boot menu via TFTP do the following: 1 From the Boot menu, select option 6 to display the bootrom upgrade menu as shown: Bootrom update menu: 1. Set TFTP protocol parameter 2. Set FTP protocol parameter 3. Set XMODE...

84 C HAPTER 6: U PGRADING S OFTWARE Load File name: Switch IP address: Server IP address: FTP User Name: FTP User Password: 3 Enter the file name, Switch IP address, Server IP address, FTP user name and password to display the following: Are you sure to update your bootrom? Yes or No(Y/N) 4 Enter y ...

Bootrom Upgrade 85 4 Press Enter to start the download. The following information is displayed: Now please start transfer file with XMODEM protocol If you want to exit, Press <Ctrl+X> Loading ...CCCCCCCCCCCCCCCCCCCCCCCCCCCCC 5 As the file is downloading, start the XModem send file process with...

A P IN - OUTS Null Modem Cable RJ-45 to RS-232 25-pin PC-AT Serial Cable RJ-45 to 9-pin Screen TxDRxDGroundRTSCTSDSRDCDDTR Screen RxDTxDGroundRTSDTRCTSDSRDCD Shell 32578614 1 327420568 Switch 4500Cable connector: RJ-45 female PC/TerminalCable connector: 25-pin male/female only required if screen alw...

88 A PPENDIX A: P IN - OUTS Modem Cable RJ-45 to RS-232 25-pin Ethernet Port RJ-45 Pin Assignments 10/100 and 1000BASE-T RJ-45 connections. Table 10 Pin assignments Screen TxDRxDRTSCTSDSRGroundDCDDTR Screen TxDRxDRTSCTSDSRGroundDCDDTR Shell 32786514 1234567820 Switch 4500Cable connector: RJ-45 femal...

Ethernet Port RJ-45 Pin Assignments 89 Table 11 Pin assignments Pin Number 10/100 1000 Ports configured 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...

RPS 95 RPS Earthing Lead Standards Supported SNMP SNMP protocol (RFC 1157) MIB-II (RFC 1213) Bridge MIB (RFC 1493) RMON MIB II (RFC 2021) Remote Monitoring MIB (RFC 1757) MAU MIB (RFC 2239) MIB II Traps (RFC 1215) RS232 (RFC 1659) Interfaces (RFC 2233) Ether-like MIB (RFC 2665) MAU MIB (RFC 2668) Br...

C O BTAINING S UPPORT FOR YOUR P RODUCT Register Your Product Warranty and other service benefits start from the date of purchase, so it is important to register your product quickly to ensure you get full use of the warranty and other service benefits available to you. Warranty and other service be...

Contact Us 99 To send a product directly to 3Com for repair, you must first obtain a return authorization number (RMA). Products sent to 3Com, without authorization numbers clearly marked on the outside of the package, will be returned to the sender unopened, at the sender’s expense. If your product...

I NDEX 101 I NDEX A access levels of default users 56automatic setup 49 3Com Network Director 50console port 50 B browsers choosing 54 C cable pin-outs 87 command line interface management 38 console port 16conventions notice icons, About This Guide 8 D default settings 20users 56 documentation rela...