User Guide
Page 2
...legend provided on any licensed program or documentation contained in, or delivered to you are unable to locate a copy, please contact 3Com and a copy will be registered in other company and product names may be reproduced in any form or by all products are...vegetable-based with , this documentation and the software described herein are provided in all products. Conserving energy, materials and natural resources in 3Com's standard commercial license for the recovery, reclamation and safe disposal of Microsoft Corporation. it is furnished under a license agreement included with...
...legend provided on any licensed program or documentation contained in, or delivered to you are unable to locate a copy, please contact 3Com and a copy will be registered in other company and product names may be reproduced in any form or by all products are...vegetable-based with , this documentation and the software described herein are provided in all products. Conserving energy, materials and natural resources in 3Com's standard commercial license for the recovery, reclamation and safe disposal of Microsoft Corporation. it is furnished under a license agreement included with...
User Guide
Page 3
...BASELINE SWITCH Overview of the Baseline Switch 2250 Plus 7 Features and Capabilities 7 Autosensing of MDI/MDIX Connections 7 Autonegotiating 10/100 Mbps Ports 7 SFP Ports 8 Traffic Prioritization 8 Forwarding of BPDU Packets 8 Physical Features 9 Front Panel 9 Rear Panel 12 Package Contents 12 2 INSTALLING THE SWITCH Before You Begin 13 Positioning the Switch 13 Aufstellen des Switch... Kit 14 Montagesatz Anweisungen 15 Placing Units On Top of Each Other 15 Supplying Power to the Switch 16 Checking for Correct Operation 16 Connecting a Network Device 17 Using SFP Transceivers 18 Approved SFP ...
...BASELINE SWITCH Overview of the Baseline Switch 2250 Plus 7 Features and Capabilities 7 Autosensing of MDI/MDIX Connections 7 Autonegotiating 10/100 Mbps Ports 7 SFP Ports 8 Traffic Prioritization 8 Forwarding of BPDU Packets 8 Physical Features 9 Front Panel 9 Rear Panel 12 Package Contents 12 2 INSTALLING THE SWITCH Before You Begin 13 Positioning the Switch 13 Aufstellen des Switch... Kit 14 Montagesatz Anweisungen 15 Placing Units On Top of Each Other 15 Supplying Power to the Switch 16 Checking for Correct Operation 16 Connecting a Network Device 17 Using SFP Transceivers 18 Approved SFP ...
User Guide
Page 4
..., and Deleting Trunks 37 Defining Trunk Membership 37 Viewing Trunk Information 37 Monitoring Traffic 38 Using the System Tools 39 Restarting the Switch 39 Resetting and Backing Up/Restoring Configuration 39 Upgrading the System Software 40 Configuring the Spanning Tree 41 802.1p Prioritization 41 5...Register Your Product 47 Purchase Value-Added Services 47 Troubleshoot Online 47 Access Software Downloads 47 Telephone Technical Support and Repair 48 Contact Us 48 B SAFETY INFORMATION Important Safety Information 51 France and Peru Only 51 Power Cord Set 52 Consignes Importantes de Sécurit...
..., and Deleting Trunks 37 Defining Trunk Membership 37 Viewing Trunk Information 37 Monitoring Traffic 38 Using the System Tools 39 Restarting the Switch 39 Resetting and Backing Up/Restoring Configuration 39 Upgrading the System Software 40 Configuring the Spanning Tree 41 802.1p Prioritization 41 5...Register Your Product 47 Purchase Value-Added Services 47 Troubleshoot Online 47 Access Software Downloads 47 Telephone Technical Support and Repair 48 Contact Us 48 B SAFETY INFORMATION Important Safety Information 51 France and Peru Only 51 Power Cord Set 52 Consignes Importantes de Sécurit...
User Guide
Page 5
sie setzt Erfahrung bei. Examples: From the Help menu, select Contents. Click OK. Consequently, it appears on the 3Com World Wide Web site: http://www.3com.com Conventions Table 1 and Table 2 list conventions that alerts you must type something, and then press Return or Enter. Most user guides and release notes ...
sie setzt Erfahrung bei. Examples: From the Help menu, select Contents. Click OK. Consequently, it appears on the 3Com World Wide Web site: http://www.3com.com Conventions Table 1 and Table 2 list conventions that alerts you must type something, and then press Return or Enter. Most user guides and release notes ...
User Guide
Page 6
.... Documentation Comments Your suggestions are very important to comments and questions about this document to 3Com at this guide, each 3Com Baseline Switch 2250 Plus documentation set includes the following information when contacting us . Please e-mail comments about 3Com product documentation at : pddtechpubs_comments@3com.com Please include the following : ■ Online Help - Accessible from the Web interface, provides information...
.... Documentation Comments Your suggestions are very important to comments and questions about this document to 3Com at this guide, each 3Com Baseline Switch 2250 Plus documentation set includes the following information when contacting us . Please e-mail comments about 3Com product documentation at : pddtechpubs_comments@3com.com Please include the following : ■ Online Help - Accessible from the Web interface, provides information...
User Guide
Page 7
.../100 Mbps connections on these SFP transceiver slots for users who want to know the physical features of the 3Com® Baseline Switch 2250 Plus. Overview of the Baseline Switch 2250 Plus The 3Com® Baseline Switch 2250 Plus is shipped ready for use unmanaged switch. While there are four physical Gigabit ports, only a maximum of MDI/MDIX Connections All ports on the front panel...
.../100 Mbps connections on these SFP transceiver slots for users who want to know the physical features of the 3Com® Baseline Switch 2250 Plus. Overview of the Baseline Switch 2250 Plus The 3Com® Baseline Switch 2250 Plus is shipped ready for use unmanaged switch. While there are four physical Gigabit ports, only a maximum of MDI/MDIX Connections All ports on the front panel...
User Guide
Page 8
...Network control reserved traffic Forwarding of priority (0 to comply with 802.1p, VLAN tagged frames. This offers you can configure 3Com Baseline Switch 2250 Plus to forward or to block and discard bridge protocol data unit (BPDU) packets to detect avail- Traffic prioritization uses the ...tree protocol communicate with each other using BPDU packets. Traffic Prioritization The Switch offers priority queuing, which relates to see if they have been priority encoded. 8 CHAPTER 1: INTRODUCING THE BASELINE SWITCH SFP Ports The two SFP ports support fiber Gigabit Ethernet short-wave...
...Network control reserved traffic Forwarding of priority (0 to comply with 802.1p, VLAN tagged frames. This offers you can configure 3Com Baseline Switch 2250 Plus to forward or to block and discard bridge protocol data unit (BPDU) packets to detect avail- Traffic prioritization uses the ...tree protocol communicate with each other using BPDU packets. Traffic Prioritization The Switch offers priority queuing, which relates to see if they have been priority encoded. 8 CHAPTER 1: INTRODUCING THE BASELINE SWITCH SFP Ports The two SFP ports support fiber Gigabit Ethernet short-wave...
User Guide
Page 9
...ées. Figure 1 Front and Rear Panels 1 45 6 23 7 8 Front Panel The front panel of the Switch contains a series of indicator lights (LEDs) that help describe the state of the Switch. able communication paths between switches and to these sockets. They cannot be connected to determine the best available path and block less...
...ées. Figure 1 Front and Rear Panels 1 45 6 23 7 8 Front Panel The front panel of the Switch contains a series of indicator lights (LEDs) that help describe the state of the Switch. able communication paths between switches and to these sockets. They cannot be connected to determine the best available path and block less...
User Guide
Page 10
...in full-duplex mode). When an SFP port is a configurable option). (see "Troubleshooting" on the Switch. In such a configuration, you may notice some degradation of network performance. 3Com recommends that you ensure that autonegotiation is enabled, if it is active, it has priority over the ... 43). (2) 10/100/1000BASE-T/SFP Ports Ports 49 and 50 are capable of the same number. 10 CHAPTER 1: INTRODUCING THE BASELINE SWITCH Entweder geschützte oder ungeschützte Buchsen dürfen an diese Datensteckdosen angeschlossen werden. If the connected device does not ...
...in full-duplex mode). When an SFP port is a configurable option). (see "Troubleshooting" on the Switch. In such a configuration, you may notice some degradation of network performance. 3Com recommends that you ensure that autonegotiation is enabled, if it is active, it has priority over the ... 43). (2) 10/100/1000BASE-T/SFP Ports Ports 49 and 50 are capable of the same number. 10 CHAPTER 1: INTRODUCING THE BASELINE SWITCH Entweder geschützte oder ungeschützte Buchsen dürfen an diese Datensteckdosen angeschlossen werden. If the connected device does not ...
User Guide
Page 11
Status Green Meaning The unit is inserted in the slot (5) Power LED The Power LED shows the power status of the Switch. Contact your 3Com network supplier for further advice. (4) Module Active LEDs The Module Active LEDs show the status of any SFP modules that are installed. Status Green ...not identify the cause of the problem, it may be that the unit or the device connected to the port is faulty. Contact your 3Com network supplier for further advice. Status Flashing Off Meaning Packets are being received or transmitted on the port at 10 or 100 Mbps Physical Features...
Status Green Meaning The unit is inserted in the slot (5) Power LED The Power LED shows the power status of the Switch. Contact your 3Com network supplier for further advice. (4) Module Active LEDs The Module Active LEDs show the status of any SFP modules that are installed. Status Green ...not identify the cause of the problem, it may be that the unit or the device connected to the port is faulty. Contact your 3Com network supplier for further advice. Status Flashing Off Meaning Packets are being received or transmitted on the port at 10 or 100 Mbps Physical Features...
User Guide
Page 12
... supplier ■ Power-on self-test is in progress ■ Power-on the rear panel to reset the Switch to the supply voltage. Package Contents The 3Com Baseline Switch 2250 Plus package includes the following items: ■ One 3Com Baseline Switch 2250 Plus unit ■ One power cord ■ Four standard height, self-adhesive rubber pads ■ One mounting kit ■...
... supplier ■ Power-on self-test is in progress ■ Power-on the rear panel to reset the Switch to the supply voltage. Package Contents The 3Com Baseline Switch 2250 Plus package includes the following items: ■ One 3Com Baseline Switch 2250 Plus unit ■ One power cord ■ Four standard height, self-adhesive rubber pads ■ One mounting kit ■...
User Guide
Page 13
... for use in an office environment where it can be rack-mounted in diesem Handbuch aufgefuehrt sind. Alternatively, the Switch can interfere with the Switch. These include lift shafts, microwave ovens, and air conditioning units. Electromagnetic fields can be free-standing or mounted in...side of electrical noise. Before installing or removing any components from sources of the case is not restricted (3Com recom- Avant d'installer ou d'enlever tout composant du Switch ou d'entamer une procédure de maintenance, lisez les informations relatives à la sécurité...
... for use in an office environment where it can be rack-mounted in diesem Handbuch aufgefuehrt sind. Alternatively, the Switch can interfere with the Switch. These include lift shafts, microwave ovens, and air conditioning units. Electromagnetic fields can be free-standing or mounted in...side of electrical noise. Before installing or removing any components from sources of the case is not restricted (3Com recom- Avant d'installer ou d'enlever tout composant du Switch ou d'entamer une procédure de maintenance, lisez les informations relatives à la sécurité...
User Guide
Page 14
... Die Luft so frei wie möglich von Staub ist. ■ Es unwahrscheinlich ist das die Betriebstemperatur überschritten wird. 3Com empfiehlt das Sie den Switch in a clean, air conditioned environment. Rack-Mounting or Free-Standing The unit can be free-standing. Do not place objects on... ones. CAUTION: Before continuing, disconnect all cables from the underside of different size Baseline or SuperStack® 3 units, the smaller units must be exceeded. Using the Mounting Kit The Switch is always good practice to wear an anti-static wrist strap when installing network equipment...
... Die Luft so frei wie möglich von Staub ist. ■ Es unwahrscheinlich ist das die Betriebstemperatur überschritten wird. 3Com empfiehlt das Sie den Switch in a clean, air conditioned environment. Rack-Mounting or Free-Standing The unit can be free-standing. Do not place objects on... ones. CAUTION: Before continuing, disconnect all cables from the underside of different size Baseline or SuperStack® 3 units, the smaller units must be exceeded. Using the Mounting Kit The Switch is always good practice to wear an anti-static wrist strap when installing network equipment...
User Guide
Page 16
...damage from sags and surges to "(7) Power Supply" on and ready for more information. the only method of the Switch. Refer to avoid unforeseen network outages. 3Com recommends that the pads of the upper unit line up with the recesses of the power cord into the power socket... a power outlet. During POST, the Power LED on the Switch, it is complete, the Power LED turns green. 16 CHAPTER 2: INSTALLING THE SWITCH mixing a variety of the Switch flashes green. If you power on the front panel of Baseline and SuperStack units, the smaller units must use . When POST...
...damage from sags and surges to "(7) Power Supply" on and ready for more information. the only method of the Switch. Refer to avoid unforeseen network outages. 3Com recommends that the pads of the upper unit line up with the recesses of the power cord into the power socket... a power outlet. During POST, the Power LED on the Switch, it is complete, the Power LED turns green. 16 CHAPTER 2: INSTALLING THE SWITCH mixing a variety of the Switch flashes green. If you power on the front panel of Baseline and SuperStack units, the smaller units must use . When POST...
User Guide
Page 17
... your Web browser, and then enter http://knowledgebase.3com.com. ■ Contact your settings. For 1000BASE-T operation, 3Com recommends using Category 5e or 6 cables. Figure 3 Connecting Devices to the Switch Baseline 10/100 switch Endstations on switched 100 Mbps connections Baseline 10/100 switch Endstations on switched 100 Mbps connections Baseline Switch 2250 Plus 1000 Mbps link 10 or 100 Mbps link 1000...
... your Web browser, and then enter http://knowledgebase.3com.com. ■ Contact your settings. For 1000BASE-T operation, 3Com recommends using Category 5e or 6 cables. Figure 3 Connecting Devices to the Switch Baseline 10/100 switch Endstations on switched 100 Mbps connections Baseline 10/100 switch Endstations on switched 100 Mbps connections Baseline Switch 2250 Plus 1000 Mbps link 10 or 100 Mbps link 1000...
User Guide
Page 18
...on page 43. You can be properly inserted only one of approved SFP transceivers for the Switch on the 3Com Corporation World Wide Web site, enter this transceiver to connect the Switch directly to a single-mode fiber-optic cable or to insert and remove an SFP transceiver ...position). CAUTION: SFP transceivers are hot-insertable and hot-swappable. 18 CHAPTER 2: INSTALLING THE SWITCH Using SFP Transceivers The following sections describe how to multimode fiber using 3Com SFPs on the Switch. Inserting an SFP Transceiver To be one way. If you insert an SFP transceiver that...
...on page 43. You can be properly inserted only one of approved SFP transceivers for the Switch on the 3Com Corporation World Wide Web site, enter this transceiver to connect the Switch directly to a single-mode fiber-optic cable or to insert and remove an SFP transceiver ...position). CAUTION: SFP transceivers are hot-insertable and hot-swappable. 18 CHAPTER 2: INSTALLING THE SWITCH Using SFP Transceivers The following sections describe how to multimode fiber using 3Com SFPs on the Switch. Inserting an SFP Transceiver To be one way. If you insert an SFP transceiver that...
User Guide
Page 19
... SFP transceiver does not require powering off the Switch. To remove an SFP transceiver: 1 Disconnect the cable from the front). Performing Spot Checks At frequent intervals, you to when there will be least effect on users. 3Com recommends periodically checking the items listed in Table ...warning Performing Spot Checks 19 of a possible failure; The SFP transceiver should visually check the Switch. any problems operating the Switch, refer to "Troubleshooting" starting on the front of the Switch to ensure that the cooling fan is pointing toward you. 3 Pull the wire release ...
... SFP transceiver does not require powering off the Switch. To remove an SFP transceiver: 1 Disconnect the cable from the front). Performing Spot Checks At frequent intervals, you to when there will be least effect on users. 3Com recommends periodically checking the items listed in Table ...warning Performing Spot Checks 19 of a possible failure; The SFP transceiver should visually check the Switch. any problems operating the Switch, refer to "Troubleshooting" starting on the front of the Switch to ensure that the cooling fan is pointing toward you. 3 Pull the wire release ...
User Guide
Page 21
...the Web interface. The following topics are available on 3Com Baseline Switch 2250 Plus CD-ROM that is supplied with your Switch ■ A computer that is connected to the Switch and that has a Web browser Running the Discovery Application The 3Com Baseline Switch 2250 Plus CD-ROM contains, among others, the Discovery application... the Web interface using the Discovery application. Discovery should start automatically, go to access the Web interface and configure the Switch. If it does not start automatically. The Welcome screen of Discovery appears. To use to set the admin password,...
...the Web interface. The following topics are available on 3Com Baseline Switch 2250 Plus CD-ROM that is supplied with your Switch ■ A computer that is connected to the Switch and that has a Web browser Running the Discovery Application The 3Com Baseline Switch 2250 Plus CD-ROM contains, among others, the Discovery application... the Web interface using the Discovery application. Discovery should start automatically, go to access the Web interface and configure the Switch. If it does not start automatically. The Welcome screen of Discovery appears. To use to set the admin password,...
User Guide
Page 22
... network for the Web interface appears. The logon dialog box for 3Com devices. The Completing the 3Com Discovery Application screen appears. 4 Click Finish. When detection is complete, the Discovered Devices screen displays detected network devices. 3 On the Discovered Devices screen, click Baseline Switch 2250 Plus, and then click Next. 22 CHAPTER 3: CONNECTING TO THE WEB INTERFACE...
... network for the Web interface appears. The logon dialog box for 3Com devices. The Completing the 3Com Discovery Application screen appears. 4 Click Finish. When detection is complete, the Discovered Devices screen displays detected network devices. 3 On the Discovered Devices screen, click Baseline Switch 2250 Plus, and then click Next. 22 CHAPTER 3: CONNECTING TO THE WEB INTERFACE...