3Com Baseline 2226-PWR Plus Bedienungsanleitung

http://www.3com.com/ Baseline Switch 2226-PWR Plus (3C16490) User Guide Firmware Version 1.1.0.7 Part No. DUA1649-0AAA02 Published January 2005[...]

3Com Corporation • 350 Campus Dri ve • Marlborough • M A USA 01752-3064 Copyright © 2005, 3Com Corporation. Al l rights reserved. No part of this documentation may be reproduced in an y form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without wr itten permission from 3Com Corporati[...]

C ONTENTS A BOUT T HIS G UIDE Conventions 5 Related Documentation 6 Documentation Comments 6 1 I NTRODUCI NG THE B ASELINE S WITCH Overview of the Baseline Switch 2226-PWR Plus 7 Features and Capabilities 7 Autosensing of MDI/MDIX Connections 7 Autonegotiating 10/100 Mbps Ports 7 Power over Ethernet (PoE) 8 SFP Ports 8 Traffic Prioritization 8 Phys[...]

Default Port Settings 33 Changing a Port’s Settings 34 Configuring VLANs 35 Creating a VLAN 36 Sample VLAN Configurations 37 Removing a VLAN 38 Configuring Link Aggregation 38 Trunk Membership 39 Adding Ports to a Trunk 39 Configuring Trunk Settings 40 Configuring PoE 40 Configuring PoE for Individual Ports 41 Planning Power Budgets 43 Viewing St[...]

A BOUT T HIS G UIDE This guide is intended for use by those responsible for installing and setting up network equipment. Conse - quently, it assumes a basic working know ledge of LANs (local area networks). If release notes are shipped with your product and the information there differ s from the information in this guide, follow the instru ctions [...]

6 A BOUT T HIS G UIDE Related Documentation In addition to this guid e, each 3Com Baseline Switch 2226-PWR Plus document ation set includes the fol - lowing: ■ Online Help – Accessible from the We b interface, provides information that helps you perform tasks using the Web interface. ■ Release Notes – Provide in formation about the cu r - r[...]

1 I NTRODUCING THE B ASELINE S WITCH This chapter provides an ov erview of the features and capabilities of the 3Com ® Baseline Switch 2226-PWR Plus. It also identifi es the contents of th e Switch pack - age and helps you get to kn ow the physical features of the device. Overview of the Basel ine Switch 2226-PWR Plus The 3Com Baseline Switch 2226[...]

8 C HAPTER 1: I NTRODUCING THE B ASELINE S WITCH Power over Ethernet (PoE) The Switch supports Power ov er Ethernet (PoE) on all 24 10/100 ports. If you plu g in a compatible (IEEE 802.3af compliant) device, the Switch will automati - cally detect and supply power to it. By default, PoE is enable d on all 24 ports. You can also configure the PoE se[...]

Physical Features 9 The 802.1D standard specifies eight distinct levels of priority (0 to 7), each of wh ich relates to a particular type of traffic. The p riority levels and their traf fic types are shown in Table 3 . Table 3 Priority Levels for Traffic Types The traffic priorit ization featur e supported by th e Switch is compatible with th e rel[...]

10 C HAPTER 1: I NTRODUCING THE B ASELINE S WITCH Either shielded or unshie lded data cables with shielded or unshielded jacks can be conn ected to these data sockets. AVERTISSEM ENT: Points d’accès RJ-45. Ceux-ci so nt protégés par des prises de données. Ils ne peuvent pas être utilisés comme prise s de téléphone conven - tionnelles stan[...]

Physical Features 11 (PD) Port powering o n the front panel to indicate PoE operation. CAUTION: The Switch supports full-duplex autone - gotiation. If the connected device does not sup port autonegotia tion, the Sw itch will operate in half-duplex mode ( even if the attached device is oper - ating in full-duplex mode). In such a configur ation, you[...]

12 C HAPTER 1: I NTRODUCING THE B ASELINE S WITCH Ports 25 and 26 are no t configured to provid e Power over Ethe rnet. The two SFP ports support f iber Gigabit Ethernet short-wave (SX) and long-wave (LX) SFP transceivers in any combination. This of fers you the flexibility of using SFP transceivers to provide connectivity between the Switch and re[...]

Package Contents 13 tion, refer t o “ Resetting to Factory Defaults ” on page 51 . Package Contents The 3Com Baseline Sw itch 2226-PWR Plus package includes the following items: ■ One 3Com Baseline Switch 2226-PWR Plus unit ■ One power cord ■ Four standard height, s elf-adhesive rubber pads ■ One mounting kit ■ One CD-ROM, which conta[...]

14 C HAPTER 1: I NTRODUCING THE B ASELINE S WITCH[...]

2 I NSTALLING THE S WITCH This chapter contains inform ation that you need to install and set up the Switch . It covers the following topics: ■ Positioning the Switch ■ Rack-Mount ing or Free-S tanding ■ Supplying Power to the Switch ■ Connecting a Network Device ■ Connecting a Network Device ■ Performing Sp ot Checks Before You Begin W[...]

16 C HAPTER 2: I NSTALLING THE S WITCH ■ It is accessible and cables can be connect ed easily. ■ Cabling is away from sour ces of electrical noise. These include lift shafts, microwave ovens, and air conditioning units . Electromagnetic fields can interfere with the signal s on copper cabling an d introduce errors, th erefore slowing down your [...]

Supplying Power to the Switch 17 Figure 2 Inserti ng the Screws 4 Repeat the two previous st eps for the other si de of the unit. 5 Insert the un it into the 19- inch rack and secure with suitable screws (not provided). Ensur e that the venti - lation holes are not obstr ucted. 6 Reconnect the network cables. Placing Units On Top of Each Other If t[...]

18 C HAPTER 2: I NSTALLING THE S WITCH When the Switch is powere d on, th e Power LED lights up. If the Power LED does not light up, refe r to “ (6) Power LED ” on page 12 for mor e informatio n. Checking for Correct Operation After you power on the Switch, it aut omatically per - forms a pow er-on self-test (PO ST). During POS T, the Power LED[...]

Using SFP Transceivers 19 Figure 3 Connecting Devices to the Switch To connect a device to the Switch: 1 Connect one end of the cable to an RJ-4 5 port on the Switch. 2 Connect the other end to the ap propriate RJ-45 port on the connect ing device. For 1000BASE-T operation , 3Com recommends using Category 5e or 6 cables. Using SFP Transceivers The [...]

20 C HAPTER 2: I NSTALLING THE S WITCH in Figure 4 . Ensure the w ire release lever is closed (in the upright position). Figure 4 Inserti ng the SFP Transceiver 2 Gently slide the transceiver into the SFP slot until it clicks into place. CAUTION: SFP transceivers are keyed and can be properly inserted only one wa y. If the transceiver does not clic[...]

Performing Spot Checks 21 Table 5 Items to Check If you experience any problems operating the Switch, refer to “ Troubleshooting ” starting on page 51 . Item Verify That Cabling All external cabling connecti ons are secure and that no cables are pulled taut Cooling fan Where possible, check that the cooling fan is operating by l istening to the[...]

22 C HAPTER 2: I NSTALLING THE S WITCH[...]

3 C ONNECTING TO THE W EB I NTERFACE The Switch has a built-in We b int erface that yo u can use to set the admin passwor d, change the IP address that is assigned to the Switch, and config ure its advanced settings. If you only want the Switch to function as a b asic layer 2 switch, you do no t need to access the Web interface and configure the Sw[...]

24 C HAPTER 3: C ONNECTING TO THE W EB I NTERFACE Figure 5 Welcome Screen of Discovery 2 If the computer has multiple network adapters, se lect the adapter that connects the computer to the Switch, an d then click Next . If the computer has only one adapter, click Next . Discovery searches the ne twork for 3Com devices. When detection is complete ,[...]

Navigating the Web Interface 25 The logon screen also displa ys the IP address that the Switch is currently using. Figure 7 Logon Sc reen To log on to the Web inter face: 1 In Username , type admin . 2 Leave the Password field blank. 3 Click OK . Navigating the Web Interface The Web interface has been designed to enable you to easily perform advanc[...]

26 C HAPTER 3: C ONNECTING TO THE W EB I NTERFACE Buttons Depending on the screen that is currently displayed , the following buttons may appear: ■ Apply – Click to save and apply any changes that you have made ■ Cancel – Click to discard any unsaved changes ■ Help – Click to display the context-sensitive he lp information for the scree[...]

Accessing the Interface Without Using Discovery 27 DHCP Assigned IP Address If you set the IP ad dress mode to DHCP, check the DHCP server for the IP addre ss that is assigned to the Switch, and th en use that IP ad dress to access th e Web interface. For example, if the DHCP server assigned the IP address 192.168.0 .123 to the Switch, start you r [...]

28 C HAPTER 3: C ONNECTING TO THE W EB I NTERFACE[...]

4 C ONFIGURING THE S WITCH This chapter provides inform ation on how to config - ure the Switch’s advanced features. Topics include: ■ Changing the Admin Password ■ Modifying the IP Address Settings ■ Configuring Port Settings ■ Configuring VLANs ■ Configuring Link Aggregatio n ■ Configuring PoE ■ Monitoring Traff ic ■ Setting the[...]

30 C HAPTER 4: C ONFIGURING THE S WITCH Table 7 Items on the Status Screen If you request for technica l assistance from 3Com Support, you may be asked to print out the informa - tion on this screen. Changing the Admin Password To prevent unauthorized users from accessing the Web interface and modifying th e Switch’s settings, the interface is pa[...]

Modifying the IP Address Settings 31 have not previously set a password, leave this field blank. 3 In New Password , ty pe the password th at you want to set. 4 In Confirm Password , retype t he password you typed in step 3 to confirm. The password is case-sensitive. 5 Click Apply . If you want to modify the adm in password later on , follow th e s[...]

32 C HAPTER 4: C ONFIGURING THE S WITCH 3Com recommends using au tomatic IP configuration only for the initial setup. On ce you gain access to the console, you sho uld assign an IP addres s to the Switch (either by using DHCP or as signing a static IP address) to ensure successfu l communication between the Switch and other network devices. Setting[...]

Configuring Port Settings 33 Configuring Port Settings Using the Web interface, you can configure the speed/duplex and flow contr ol settings of each port. You can also shut down or disable ports from the Web interface. Viewing Port Settings To view the current port settings, click Port Configu - ration on the menu. The Port Configuration screen ap[...]

34 C HAPTER 4: C ONFIGURING THE S WITCH Changing a Port’s Settings If a port is a member of an aggreg ated link (or trunk) , you will not be able to conf igure its individual port settings. All member ports of an aggregated link will have the same settings, and you can configure these by clicking the AL link on the Port Configuration screen. See [...]

Configuring VLANs 35 3 Click Apply to save your settings. To configure another po rt, click Po rt Configuration on the menu again, and then click the port number th at you want to configure. Speed/Duplex for 1000 Mbps Connections You cannot preset th e speed to 1000Mbps. To run a port at 1000Mbps, you must enable autonegotiation for the port. When [...]

36 C HAPTER 4: C ONFIGURING THE S WITCH Communication between differ ent VLANs can only take place if they are all conn ected to a router or layer 3 switch. Creating a VLAN Use the VLANs page to create VLA Ns on the Switch. To propagate informat ion about VLAN groups used on this Switch to external devices, you must specify a VLAN ID for each VLAN.[...]

Configuring VLANs 37 For examples on setting up VLANs, refer t o “ Sample VLAN Configurations ” . Sample VLAN Configurations To illustrate how you can segment ne twork devices that are connected to the Switch, the following sample configurations are provided. Setting Up Two VLANs on the Same Switch Figure 16 illustrates how you can set up a sim[...]

38 C HAPTER 4: C ONFIGURING THE S WITCH Figure 17 Uplink VLAN Configuration To set up the configuration shown in Figure 17 , do the following: 1 Create VLAN2 on both Switch 1 an d Switch 2, and assign the same name to it. You need no t create VLAN1 since it exists by default. 2 On Switch 1, set the ports that you want to be part of VLAN2 to D (desk[...]

Configuring Link Aggregation 39 The Switch does not supp ort th e Link Aggregation Control Protocol (LACP), wh ich is specified in IEEE 802.3ad. Trunk Membership The Switch has four pre-defi ned trunks, each of which can suppor t up to eight po rts. Table 11 lists the possible membership gr oups for each tr unk. These four port group s correspond t[...]

40 C HAPTER 4: C ONFIGURING THE S WITCH CAUTION: If you try to add a port to a trunk an d the speed setting of the port to be added does not match that of th e trunk, an er ro r message appears and port will not be adde d to the trunk. Configuring Trunk Settings Ports that are memb ers of the same trunk will have the same speed/d uplex, autonegotia[...]

Configuring PoE 41 Figure 20 PoE Configuration Summary Screen You can configure two basic PoE settings in the Switch Configuration section: ■ Power ■ Power Exceed Shutdown Method Table 12 describes the available options for these se t - tings. Table 12 Basic Po E Options If you make any change s to the settings in Table 12 , click Apply to save[...]

42 C HAPTER 4: C ONFIGURING THE S WITCH To configure the PoE settings of a port: 1 On the PoE Configuration screen, click the port number that you want to configure. The PoE Setting screen ap pears. Figure 21 PoE Setting Screen 2 Configure the PoE settings of the selecte d port, including: ■ Power ■ Priority ■ Power limit For more informati o[...]

Viewing Statistics 43 3 Click Apply to save the PoE settings for the port. To configure the PoE settin gs of anot her port, click the port numb er from the PoE Configuration screen. Planning Power Budgets As you connect more PoE de vices to the Switch, you may need to calculat e your p ower budget. Planning a Power Budget The Switch can supply a ma[...]

44 C HAPTER 4: C ONFIGURING THE S WITCH Figure 22 Statistics Screen Figures that appear onscreen indicate the number of packets transmitted (Tx) and received (Rx) . ■ To reset all packe t counts to zero , click Clear Counters . ■ To view detailed statistics for each port, click the port number. Th e statistics page for the p ort appears, as sho[...]

Setting the Traffic Priority 45 toring, the Switch takes a ll the traffic going in and out of the monitor po rt and copie s it to the ana lysis port. CAUTION: The analysis port (Mirro r From) should have a high er bandwi dth than the monitor p ort (Mir - ror From). Otherwise, t he Switch may not be able to copy all traffic effectively during per io[...]

46 C HAPTER 4: C ONFIGURING THE S WITCH IP Phone Prioritiza tion Use the IP Phone Prioritization sect ion to enable or disable traffic prioritization f or NBX or other IP phones. Table 14 lists the available options for this section. CAUTION: To ensure that the Switch recognizes th e NBX or other IP p hone during phone initializati on, do not conne[...]

5 U PGRADING THE F IRMWARE 3Com may release up grade files for the f irmware that is installed on the Switch. These firmware upgrades normally contain f eature en hancements and fixes f or known issues in previous releases. This chapter describes how to download firmware updates and use the 3Com TFTP Server to upgrade the firmware on the Swit ch. T[...]

48 C HAPTER 5: U PGRADING THE F IRMWARE 4 Read the license agreem ent, and then click Yes to agree. Th e Choose Destin ation Location screen appears. 5 To install the 3Com TFTP Serv er to the default folder, click Next . To specify another location, click Browse , and then select a new location. Click OK , and then click Next . Setup installs the 3[...]

Performing Firmware Upgrade 49 4 If a firmware update is available, download the update files to the com puter on which you installed the 3Com TFTP Server. 5 Copy the upgr ade files to the Upload/Download Directory you specified in step 3 of “ Setting Up the 3Com TF TP Server ” . Performing Firmware Upgrade After you copy the upgrade f iles to [...]

50 C HAPTER 5: U PGRADING THE F IRMWARE Figure 28 Status Column Indicates When Upgrade is Complete To verify that the upgrade was successful, access the Web interface, and then go to the System Upgrade screen. The Curren t Firmware Ve rsion should show the version of the firmware t hat you have just installed.[...]

6 T ROUBLESHOOTING This chapter lists some issues th at you may encounte r while installing, using, and managing the Switch, with suggested cou rses of corrective action to take. If you encounter an issue th at is not lis ted here and you cannot solve it, chec k the 3Com Knowledgebase at http://knowledgebase.3com.com before contacting your local te[...]

52 C HAPTER 6: T ROUBLESHOOTING Forgotten Password If you forget the passwor d to the Web interfac e after you set it, you will need to reset the Switch to regain access. See “ Resetting to Factory Defaults ” on page 51 for instr uctions. After reset ting the Switch, you can log on to the Web interface ag ain using the default admin account set[...]

Solving Power Issues 53 A PoE device is plugged in, but the PoE LED for the port is off. If a device is not su pplied with power after you have connected it to the Switch 2226-PWR Plus, check the following: ■ The power bud get for th e Switch (180 w atts) has not been excee ded. ■ The cable used to connect to the device is in good shape and is [...]

54 C HAPTER 6: T ROUBLESHOOTING By default, the Switch will allow a device to receive power as long as the PoE power supply has 18 wat ts spare in its power budget . If this much power is not available, the device will not be powered (unless it has a higher priority th an th e ports that are currently powered) and a Power over Ethernet fault will b[...]

A O BTAINING S UPPORT FOR Y OUR P RODUCT Register Your Product Warranty and other service benefits start f rom the date of purc hase, so it is impor tant to register your product quickly to ensu re you get full use of the war - ranty and ot her service benefits availab le to you. Warranty and othe r service benefits are enab led through product reg[...]

56 A PPENDIX A: O BTAINING S UPPORT FOR Y OUR P RODUCT found at http://eSupport.3com.c om/ , or under the Product Suppor t heading at http://www.3com.com/ Software Upgrades are the software releases that follow the soft ware version included with your origi - nal product. In order to access upgrades and r elated documentat ion you must first purcha[...]

Contact Us 57 . Country Telephone Number Asia, Pacific Rim Tele phone Technical Supp ort and Repair Australia Hong Kong India Indonesia Japan Malaysia New Zealand Pakistan Philippines P.R. of China Singapore S. Korea Taiwan Thailand 1 800 678 515 800 933 486 +61 2 9424 5179 or 000800 6501111 001 803 61 009 00531 616 439 or 03 3507 5984 1800 801 777[...]

58 A PPENDIX A: O BTAINING S UPPORT FOR Y OUR P RODUCT Antigua Argentina Aruba Bahamas Barbados Belize Bermuda Bonaire Brazil Cayman Chile Colombia Costa Rica Curacao Ecuador Dominican Republi c Guatemala Haiti Honduras Jamaica Martinique Mexico Nicaragua Panama Paraguay Peru Puerto Rico Salvador Trinidad and Tobago Uruguay Venezuela Virgin Isla nd[...]

B S AFETY I NFORMATION Important Safety Information Please read the following safety in formation carefu lly before installing the 3Com Baseline Switch 2226-PWR Plus. WARNING: Installation and re moval of the unit must be carried out by qualified personnel on ly. WARNING: If installing the Switch unit in a stack with other units, the Switch un it m[...]

60 A PPENDIX B: S AFETY I NFORMATION WARNING: Fib er optic po rts – optical safe ty Never look at the transmit laser while it is powered on. Never look directly at the fiber ports and f iber cable ends when they are powered on. WARNING: Use of controls o r adjustments of pe rfor - mance or proced ures other tha n those specified herein may result[...]

Wichtige Sicherheitshinweise Informatio nen 61 tion Neutre et a vec raccordement d irect à la ter re (masse). AVERTISSEM ENT: Cordon électrique Il doit être agréé dans le pays d’utilisation. AVERTISSEM ENT : Ports pour fibres optiqu es – sécu - rité sur le plan optique Ne regardez jamais le laser tant qu'il est sous tension. Ne rega[...]

62 A PPENDIX B: S AFETY I NFORMATION WARNUNG: Die Netzsteckdose muß in der Nähe des Geräts und leicht zugänglich sein. Die Stromversor - gung des Geräts kann nur durch Herausziehen des Gerätenetzkabe ls aus der Netzsteckdose unterbro - chen werden. WARNUNG: De r Betrieb dieses G eräts erfolgt un ter den SELV-Bedingungen (Sicherheitskleinstsp[...]

Información de Seguridad Importante 63 punto de conexión secundario etiquetado como neutro cone ctado dire ctamente a tierra. †Impédance à la terre. ADVERTENCIA: Conjunto de cables eléctricos Debe estar homologado para el país donde se utilice. ADVERTENCIA: Puertos RJ-45. Son conectores de datos RJ-45 blindados . No pueden utilizarse como t[...]

64 A PPENDIX B: S AFETY I NFORMATION ADVERTENCIA: El uso de controles, ajustes de ren - dimiento o procedimientos distintos a los especifica - dos en este documento puede produ cir emisiones de láser peligrosas. Importanti Informazioni di Sicurezza AVVERTENZA: Le operazioni di installazione e rimozione dell'unit à devono essere eseguite escl[...]

Importanti Informazioni di Sicurezza 65 AVVERTENZA: Le porte RJ-45 son o prese dati RJ- 45 schermate. Non è pertanto po ssibile utilizzarle come normali prese telefoniche né per collegare l'unità a un PBX (Private Branch Exchan ge, centralino telefonico privato) o a una rete telefonica pubblica. Collegare a queste porte solo prese dati RJ-4[...]

66 A PPENDIX B: S AFETY I NFORMATION[...]

C T ECHNICAL I NFORMATION Related Standards The 3Com Baseline Switch 2226-PWR Plus has been designed to the followi ng standards: Environmental Physical Electrical The Switch can also prov ide p ower to any PoE- com - pliant device that is connected to any of its 24 Ether - net ports (b ased on the IE EE 802.3af Power over Ethernet specifications).[...]

68 A PPENDIX C: T ECHNICAL I NFORMATION[...]

G LOSSARY 10BASE- T The IEEE specification for 10 Mbps Ethernet over Cat - egory 3, 4 or 5 twisted pair cable. 100BASE- TX The IEEE specification for 100 Mbps Fast Ethernet over Category 5 tw isted-pair cable. 1000BASE-LX IEEE 802.3z specification fo r Gigabit Ethernet over 9/125 micron core single-mode fiber cable. 1000BASE-SX IEEE 802.3z specific[...]

70 G LOSSARY category 5e cables One of five grades of Twisted Pair (TP) cabling defined by the EIA/TIA-568 standa rd. Category 5e can be used in Ethernet (10BASE-T), Fast Etherne t (100BASE-TX) and Giga bit Ethernet (100 0BASE-T) networks, and can tr ansmit data at speeds of up to 1000 Mbps. category 6 cable One of five grades of Twisted Pair (TP) [...]

G LOSSARY 71 standard way fo r VLANs to commu nicate across switched networks. IEEE 802.1 p An IEEE standard for provid ing quality of service (QoS) in Ethe rnet netwo rks. Th e st andard uses packet tags that define up to eight traf fic classes and allows switches to tr ansmit packets based on the t agged pri - ority value. IEEE 802.3ad A standard[...]

72 G LOSSARY network A network is a collection of computers and other computer equipmen t that are connect ed for the pur - pose of exchanging information or sharing resources. Networks vary in size, some are within a single room, others span cont inents. ping Packet Internet Groper. An internet utility used to determine whether a particular IP add[...]

G LOSSARY 73 TCP relates to the content of the data travelling through a network — e nsuring that the infor mation sent arriv es in one piec e wh en it reaches its destina - tion. IP relates to the address o f the end station t o which data is being sent, as well as the address of th e destination network. traffic monitoring Enables the monitorin[...]

74 G LOSSARY[...]

I NDEX Numbers 1000BASE-LX 69 1000BASE-SX 69 1000BASE-T 69 100BASE-TX 69 10BASE-T 69 3Com TFTP Server setting up 48 3CSom TFTP Server installing 47 A auto IP confi guration 31 default IP address 31 default mask 31 autonegotiati on 7, 34 autosensing 7 B bandwidth 69 C client 70 configuration overview 29 connecting network device 18 SFP transceivers [...]

76 I NDEX mounting kit contents 15 using 16 N network analyzer 44 network cables category 3 69 category 5 69 category 5e 70 category 6 70 network defined 72 P package contents 13 panels front 9 rear 12 password changing 30 default (blan k) 30 setting 30 physical features 9 PoE configuring 40 configuring indi vidual ports 41 overview 8 port settings[...]

R EGULATORY N OTICES FCC S TATEMENT This equipment has been tested and found to comply with the limits for a Class A digital device, pursu ant to part 1 5 of the FCC rul es. These limits are d esigned to p rovide reasonable protection against harmful interfere nce when the equipment is operated in a commercial environment. This equipment generates,[...]