3COM 3CBLSF26H User Manual

Baseline Switch 2226-SFP Plus

Baseline Switch 2426-PWR Plus

Baseline Switch 2250-SFP Plus

User Guide

3CBLSF26H

3CBLSF26PWRH

3CBLSF50H

Part No.: 10017022

Manual Version: 6W104

www.3com.com

3Com Corporation

350 Campus Drive, Marlborough,

MA, USA 01752 3064

Copyright © 2008-2009, 3Com Corporation. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from 3Com Corporation.

3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Corporation to provide notification of such revision or change.

3Com Corporation provides this documentation without warranty, term, or condition of any kind, either implied or expressed, including, but not limited to, the implied warranties, terms or conditions of merchantability, satisfactory quality, and fitness for a particular purpose. 3Com may make improvements or changes in the product(s) and/or the program(s) described in this documentation at any time.

If there is any software on removable media described in this documentation, it is furnished under a license agreement included with the product as a separate document, in the hard copy documentation, or on the removable media in a directory file named LICENSE.TXT or !LICENSE.TXT. If you are unable to locate a copy, please contact 3Com and a copy will be provided to you.

UNITED STATES GOVERNMENT LEGEND

If you are a United States government agency, then this documentation and the software described herein are provided to you subject to the following:

All technical data and computer software are commercial in nature and developed solely at private expense. Software is delivered as “Commercial Computer Software” as defined in DFARS 252.227-7014 (June 1995) or as a “commercial item” as defined in FAR 2.101(a) and as such is provided with only such rights as are provided in 3Com’s standard commercial license for the Software. Technical data is provided with limited rights only as provided in DFAR 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 delivered to you in conjunction with, this User Guide.

Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may not be registered in other countries.

3Com and the 3Com logo are registered trademarks of 3Com Corporation.

All other company and product names may be trademarks of the respective companies with which they are associated.

ENVIRONMENTAL STATEMENT

It is the policy of 3Com Corporation to be environmentally-friendly in all operations. To uphold our policy, we are committed to:

Establishing environmental performance standards that comply with national legislation and regulations.

Conserving energy, materials and natural resources in all operations.

Reducing the waste generated by all operations. Ensuring that all waste conforms to recognized environmental standards. Maximizing the recyclable and reusable content of all products.

Ensuring that all products can be recycled, reused and disposed of safely.

Ensuring that all products are labelled according to recognized environmental standards.

Improving our environmental record on a continual basis.

End of Life Statement

3Com processes allow for the recovery, reclamation and safe disposal of all end-of-life electronic components.

Regulated Materials Statement

3Com products do not contain any hazardous or ozone-depleting material.

Environmental Statement about the Documentation

The documentation for this product is printed on paper that comes from sustainable, managed forests; it is fully biodegradable and recyclable, and is completely chlorine-free. The varnish is environmentally-friendly, and the inks are vegetable-based with a low heavy-metal content.

About This Manual

Organization

3Com Baseline Switch User Guide is organized as follows:

		Chapter		Contents
	1	Getting Started		This chapter contains introductory information about the
				installation of the switch and how they can be used in your
				network.
	2	Connecting To the Web Interface		This chapter introduces the setting the menu items and
				buttons that are available on the Web interface.
	3	Configuring the Switch		This chapter introduces how to configure the switch in detail.
	4	Troubleshooting		This chapter lists some issues that you may encounter while
				installing, using, and managing the switch, with suggested
				courses of corrective action to take.
	5	CLI Reference Guide		This chapter describes using the Command Line Interface
				(CLI) to manage the switch.
	6	Obtaining Support for	Your	This chapter introduces how to get support for your product.
	Product
	7	Safety Information		This chapter describes the important safety information for
				you product.
	8	Regulatory Notices		This chapter describes the important regulatory notices for
				you product.
	9	Glossary		This chapter lists the main glossaries for the manual.

Conventions

The manual uses the following conventions:

Command conventions

	Convention		Description
	Boldface		The keywords of a command line are in Boldface.
	italic		Command arguments are in italic.
[ ]			Items (keywords or arguments) in square brackets [ ] are optional.
	{ x | y | ... }		Alternative items are grouped in braces and separated by vertical bars.
			One is selected.
	[ x | y | ... ]		Optional alternative items are grouped in square	brackets	and
			separated by vertical bars. One or none is selected.
	{ x | y | ... } *		Alternative items are grouped in braces and separated by vertical bars.
			A minimum of one or a maximum of all can be selected.
	[ x | y | ... ] *		Optional alternative items are grouped in square	brackets	and
			separated by vertical bars. Many or none can be selected.
	&<1-n>		The argument(s) before the ampersand (&) sign can be entered 1 to n
			times.

Convention	Description
#	A line starting with the # sign is comments.

GUI conventions

	Convention	Description
	Boldface	Window names, button names, field names, and menu items are in
		Boldface. For example, the New User window appears; click OK.
	>	Multi-level menus are separated by angle brackets. For example, File >
		Create > Folder.

Symbols

Convention	Description

Means reader be careful. Improper operation may cause data loss or damage to equipment.

Means a complementary description.

Obtaining Documentation

You can access the most up-to-date 3Com product documentation on the World Wide Web at this URL: http://www.3com.com.

Table of Contents

1Getting Started···········································································································································1-1

Introducing the Switch·····························································································································1-1 Overview of the Switch····················································································································1-1 Summary of Hardware Features ·····································································································1-1 Front View Detail ·····························································································································1-2 LED Status Indicators······················································································································1-3 System Specifications ·····················································································································1-4

Installing the Switch ································································································································1-5 Before You Begin ····························································································································1-5 Package Contents ···························································································································1-5 Positioning the Switch ·····················································································································1-5 Rack-Mounting or Free-Standing ····································································································1-6 Supplying Power to the Switch········································································································1-7 Checking for Correct Operation·······································································································1-8 Using SFP Transceivers··················································································································1-8 Performing Spot Checks················································································································1-10

Configuring IP Address ·························································································································1-10 Automatic IP Configuration using DHCP·······················································································1-11 Manual IP Configuration················································································································1-11

2Connecting To the Web Interface ············································································································2-1

Requirements for Accessing the Web Interface ·····················································································2-1 Choosing a Web Browser ·······················································································································2-1 Default User and Password ····················································································································2-2 Logging On to the Web Interface ············································································································2-2 Navigating the Web Interface··················································································································2-2

Menu················································································································································2-2 Buttons ············································································································································2-5

3Configuring the Switch ·····························································································································3-1

Configuring System Access ····················································································································3-1 Defining System Access··················································································································3-1 Modifying System Access ···············································································································3-2 Removing System Access···············································································································3-3 Viewing System Access Settings ····································································································3-3

Configuring IP and MAC Address Information························································································3-4 Defining IP Address·························································································································3-4 Configuring ARP Settings················································································································3-5 Configuring MAC Address Table·····································································································3-7 Configuring Port ····································································································································3-11 Configuring Port Basic Settings·····································································································3-11 Configuring PoE ····························································································································3-14 Viewing Port Statistics···················································································································3-16 Configuring VLAN ·································································································································3-18

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Creating VLANs·····························································································································3-19 Modifying VLAN·····························································································································3-19 Modifying Port VLAN Settings ·······································································································3-20 Renaming VLANs··························································································································3-21 Removing VLANs ··························································································································3-21 Viewing VLAN Details····················································································································3-22 Viewing VLAN Port Details············································································································3-23

Aggregating Port ···································································································································3-24 Overview········································································································································3-24 LACP ·············································································································································3-24 Link Aggregation Types·················································································································3-24 Configuring Link Aggregation ········································································································3-25 Configuring LACP··························································································································3-28

Configuring STP····································································································································3-29 Configuring IGMP Snooping ·················································································································3-35 Defining IGMP Snooping···············································································································3-35 Configuring ACL····································································································································3-36 Configuring MAC Based ACL········································································································3-36 Configuring IP Based ACL ············································································································3-40 Configuring ACL Binding ···············································································································3-44 Configuring QoS····································································································································3-46 Configuring CoS ····························································································································3-46 Configuring Queue Algorithm ········································································································3-47 Configuring CoS to Queue ············································································································3-48 Configuring DSCP to Queue ·········································································································3-49 Configuring Trust Mode·················································································································3-51 Configuring Bandwidth Settings ····································································································3-51 Configuring Voice VLAN················································································································3-53 Configuring SNMP ································································································································3-58 Defining SNMP Communities········································································································3-58 Removing SNMP Communities·····································································································3-59 Defining SNMP Traps····················································································································3-59 Removing SNMP Traps·················································································································3-60 Configuring LLDP··································································································································3-61 LLDP Overview······························································································································3-61 Configuring Global LLDP Parameters···························································································3-61 Configuring Port-Level LLDP Parameters·····················································································3-62 Viewing LLDP Information·············································································································3-64 Managing Switch Security·····················································································································3-66 Defining Port-Based Authentication (802.1X) ···············································································3-66 Defining Radius Client···················································································································3-69 Configuring LDB ····························································································································3-70 Configuring Broadcast Storm Control····························································································3-73 Managing System Information ··············································································································3-74 Viewing Basic Settings ··················································································································3-75 Configuring System Name ············································································································3-76 Configuring System Time ··············································································································3-77

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Save Configuration························································································································3-78 Resetting the Switch······················································································································3-79 Managing System Files·························································································································3-79 Managing System Logs ························································································································3-82 Configuring Logging ······················································································································3-83 Viewing Logs ·································································································································3-84 Managing Switch Diagnostics ···············································································································3-85 Configuring Port Mirroring ·············································································································3-85 Configuring Cable Diagnostics ······································································································3-86

4Troubleshooting ········································································································································4-1

Resetting to Factory Defaults··················································································································4-1 Forgotten Password································································································································4-1 Reset the switch ······························································································································4-1 Configure a new user ······················································································································4-2 Forgotten Static IP Address ····················································································································4-2 Solving LED Issues·································································································································4-2

5CLI Reference Guide ·································································································································5-1

Getting Started with the Command Line Interface··················································································5-1 Prerequisites····································································································································5-1 Logging on to the CLI ······················································································································5-1 CLI Features ···········································································································································5-2 Online Help······································································································································5-2 Command History····························································································································5-3 Error Messages ·······························································································································5-3 Command Edit·································································································································5-4

CLI Configuration ····································································································································5-4 display ip··········································································································································5-4 display management-vlan ···············································································································5-5 display version·································································································································5-6 ip address ········································································································································5-6 ip address dhcp-alloc·······················································································································5-6 ip gateway ·······································································································································5-7 localuser ··········································································································································5-7 management-vlan····························································································································5-8 management-vlan port·····················································································································5-8 ping··················································································································································5-9 quit·················································································································································5-10 reboot·············································································································································5-10 restore ···········································································································································5-11 save ···············································································································································5-11 tftp update······································································································································5-12

6Obtaining Support for Your Product ·······································································································6-1

Register Your Product·····························································································································6-1 Purchase Value-Added Services ············································································································6-1 Access Software Downloads ··················································································································6-1 Telephone Technical Support and Repair ······························································································6-1

iii

Contact Us ··············································································································································6-2

7Safety Information ·····································································································································7-1

Important Safety Information···················································································································7-1

8Regulatory Notices····································································································································8-1

FCC Statement ·······································································································································8-1 Information to the User····························································································································8-1 ICES Statement ······································································································································8-1 CE Statement (Europe)···························································································································8-1 VCCI Statement ······································································································································8-2

9Glossary ·····················································································································································9-1

iv

1 Getting Started

zThis manual applies to the Baseline Switch 2250-SFP Plus, Baseline Switch 2226-SFP Plus, and Baseline Switch 2426-PWR Plus, which are hereinafter referred to as the switch.

zThis manual takes the Web interfaces of the Baseline Switch 2426-PWR Plus as an example.

This chapter contains introductory information about the installation of the switch and how they can be used in your network. It covers the following topics:

z

z

z

Introducing the Switch

Installing the Switch

Configuring IP Address

Introducing the Switch

This chapter covers summary information about the hardware and the following topics:

z

z

z

z

z

Overview of the Switch

Summary of Hardware Features

Front View Detail

LED Status Indicators

System Specifications

Overview of the Switch

zThe Baseline Switch 2226-SFP Plus is a versatile, easy-to-use configurable switch.

zThe Baseline Switch 2426-PWR Plus is a versatile, easy-to-use configurable Power-over-Ethernet (PoE) Switch.

zThe Baseline Switch 2250-SFP Plus is a versatile, easy-to-use configurable switch.

Each Switch is ideal for users who want the high-speed performance of 10/100 switching with the added functionality of Gigabit copper and fiber links, but do not need sophisticated management capabilities. The Switch is shipped ready for use. No configuration is necessary.

Summary of Hardware Features

Table 1-1 Summarizes the hardware features supported by the Switch.

Table 1-1 Hardware Features

Feature	Description
Addresses	Up to 8192 supported.
Auto-negotiation	Supported on all ports.
	1-1

	Feature		Description
	Forwarding Modes		Store and Forward.
	Duplex Modes	Half and full duplex on all front panel ports.
	Auto MDI/MDIX		Supported on all ports. If fiber SFP transceivers are used,
			Auto MDIX is not supported.
	Flow Control	In full duplex operation all ports are supported.
	Traffic Prioritization		Four traffic queues per port.
			10/100 Mbps ports.
	Ethernet Ports		Each port automatically determines the speed and duplex
			mode of the connected equipment and provides a suitable
			switched connection. The 10/100 Mbps ports can operate in
			either half-duplex or full-duplex mode.
			The 2 Gigabit combo ports support fiber Gigabit Ethernet
			short-wave (SX) and long-wave (LX) SFP transceivers in
			any combination. This offers you the flexibility of using SFP
	Gigabit Combo Ports		transceivers to provide connectivity between the Switch and
			a 1000 Mbps core network.
			When an SFP port is in operation, the corresponding
			1000BASE-T port is disabled. The 1000 Mbps connections
			can only operate in full duplex mode.
	Mounting		19-inch rack or standalone mounting.
	Fanless design (supported by
	Baseline Switch 2226-SFP Plus and		Silent operation whether used in a rack or desktop situation.
	Baseline Switch 2250-SFP Plus)
			Each RJ-45 port supports the IEEE 802.3af PoE standard.
			Any 802.3af compliant device attached to a port can directly
	PoE (Only supported by Baseline		draw power from the switch over the Ethernet cable without
			requiring its own separate power source. This capability
	Switch 2426-PWR Plus)
			gives network administrators centralized power control for
			devices such as IP phones and wireless access points,
			which translates into greater network availability.

Front View Detail

Figure 1-1 shows the front panel of the Baseline Switch 2226-SFP Plus 26-Port unit.

Figure 1-1 Baseline Switch 2226-SFP Plus 26-Port—front panel.

Figure 1-2 Shows the front panel of the Baseline Switch 2426-PWR Plus 26-Port unit.

Figure 1-2 Baseline Switch 2426-PWR Plus 26-Port—front panel.

Figure 1-3 shows the front panel of the Baseline Switch 2250-SFP Plus 50-Port unit.

1-2

Figure 1-3 Baseline Switch 2250-SFP Plus 50-Port—front panel.

LED Status Indicators

The Switch provides LED indicators on the front panel for your convenience to monitor the switch. Table 1-2 describes the meanings of the LEDs.

Table 1-2 Description on the LEDs of the Switch

		LED			Status		Description
							The switch starts normally. The LED flashes
					Green		when the system is performing Power-On
		Power					Self-Test (POST).
					Yellow		The system has failed the POST.
					OFF	The switch is powered off.
		Link/Activity					The port works at the rate of 100 Mbps; the
					Green		LED flashes quickly when the port is sending
							or receiving data.
							The port works at the rate of 10 Mbps; the
					Yellow		LED flashes quickly when the port is sending
							or receiving data.
							The link has not been established, either
			10/100BASE-T				nothing is connected to the port, or there is a
			port				problem:
							z Check that the attached device is powered
					OFF		on.
							z Check that the cable is the correct type
							and is not faulty.
							If these checks do not identify the cause of the
							problem, it may be that the unit or the device
							connected to the port is faulty. Contact your
							supplier for further advice.
			10/100/1000BAS				The port works at the rate of 1000 Mbps; the
					Green		LED flashes quickly when the port is sending
			E-T port
							or receiving data.
							The port works at the rate of 10/100 Mbps; the
					Yellow		LED flashes quickly when the port is sending
							or receiving data.

1-3

			LED			Status		Description
								The link has not been established, either
								nothing is connected to the port, or there is a
								problem:
								z Check that the attached device is powered
								on.
								z Check that the cable or fiber is the correct
						OFF		type and is not faulty.
								z For fiber connections, ensure that the
								receive (RX) and transmit (TX) cable
								connectors are not swapped.
								If these checks do not identify the cause of the
								problem, it may be that the unit or the device
								connected to the port is faulty. Contact your
								supplier for further advice.
				10/100/1000BAS		Yellow	The port is in full duplex mode.
		Duplex
								The port is not connected, or is in half duplex
				E-T port		OFF
								mode.
						Green	The SFP module is inserted.
		Module Active		SFP port
						OFF	The SFP module is not inserted or is not
							recognized.
						Green		The port is supplying power to the device
		PoE Power (Only supported by						connected to it.
		Baseline Switch 2426-PWR Plus)				OFF	The port is not supply power to the device
							connected to it or not connected.

System Specifications

Table 1-3 contains the system specifications of the Switch.

Table 1-3 System specifications of the Switch.

	Specification	2226-SFP	2426-PWR	2250-SFP
	Physical dimensions	44 mm×440 mm×170	44 mm×440 mm×238	44 mm×440 mm×238
	(H×W×D)	mm	mm	mm
	Weight	1.6 kg	3.2 kg	2.9 kg
	Console port	1	1	1
			24 (Each port can
	Ethernet port	24	provide a power	48
			supply of 25 W)
	Gigabit Combo port	2	2	2
		Rated voltage range:	Rated voltage range:	Rated voltage range:
	AC Input voltage	100–240V AC, 50/60	100–240V AC, 50/60	100–240V AC, 50/60
		Hz	Hz	Hz
	Power consumption (full	17 W	205 W	26 W
	load)
	Operating temperature	0°C to 40°C (32°F to 113°F)
	Storage temperature	–10°C to +70°C (14°F to 158°F)
		1-4

	Specification		2226-SFP	2426-PWR	2250-SFP
	Operating humidity		20% to 85%
	(noncondensing)
	Storage humidity		10% to 90%
	(noncondensing)

Installing the Switch

This section contains information that you need to install and set up the switch. It covers the following topics:

z

z

z

z

z

z

z

z

Before You Begin

Package Contents Positioning the Switch

Rack-Mounting or Free-Standing Supplying Power to the Switch Checking for Correct Operation Using SFP Transceivers Performing Spot Checks

Before You Begin

Before installing or removing any components from the switch or carrying out any maintenance procedures, read the safety information provided in Safety Information of this guide.

Package Contents

The Baseline Switch packaging contains the following for all units:

z

z

z

z

z

z

One product sealed in a plastic bag One CD

One Safety and Regulatory Information manual One warranty card

One Mounting Kit

One DB-9 to RJ-45 cable

Positioning the Switch

The switch is suitable for use in an office environment where it can be free-standing or mounted in a standard 19-inch equipment rack.

Alternatively, the switch can be rack-mounted in a wiring closet or equipment room. A mounting kit, containing two mounting brackets and four screws, is supplied with the switch.

When deciding where to position the switch, ensure that:

zIt is accessible and cables can be connected easily.

zCabling is away from sources of electrical noise. These include lift shafts, microwave ovens, and air conditioning units. Electromagnetic fields can interfere with the signals on copper cabling and introduce errors, therefore slowing down your network.

zWater or moisture cannot enter the case of the unit.

1-5

zAir flow around the unit and through the vents on the side of the case is not restricted (3Com recommends that you provide a minimum of 25 mm (1 in.) clearance).

zThe air is as free from dust as possible.

zTemperature operating limits are not likely to be exceeded. It is recommended that the unit is installed in a clean, air conditioned environment.

It is always good practice to wear an anti-static wrist strap when installing network equipment, connected to a ground point. If one is not available, try to keep in contact with a grounded rack and avoid touching the unit's ports and connectors, if possible. Static discharge can cause reliability problems in your equipment.

Rack-Mounting or Free-Standing

The unit can be mounted in a 19-inch equipment rack using the mounting kit or it can be free standing. Do not place objects on top of the unit or stack.

If installing the switch in a free-standing stack of different size Baseline or Super stack 3 units, the smaller units must be installed above the larger ones. Do not have a free-standing stack of more than six units.

Using the Mounting Kit

The switch is supplied with two mounting brackets and four screws. These are used for rack mounting the unit. When mounting the unit, you should take note of the guidelines given in Positioning the Switch.

The switch is 1U (1.7 inches) high and will fit in a standard 19-inch rack.

Disconnect all cables from the unit before continuing. Remove the self-adhesive pads from the underside of unit, if already fitted.

To rack-mount the switch:

1)Place the unit the right way up on a hard, flat surface with the front facing towards you.

2)Locate a mounting bracket over the mounting holes on one side of the unit.

3)Insert the two screws supplied in the mounting kit and fully tighten with a suitable screwdriver.

1-6

Figure 1-4 Rack Mounting the Unit

4)Repeat steps 2 and 3 for the other side of the unit.

5)Insert the unit into the 19-inch rack and secure with suitable screws (not provided).

6)Reconnect the cables.

Placing Units On Top of Each Other

If the switch units are free-standing, up to six units can be placed one on top of the other. If you are mixing a variety of Baseline and Super Stack units, the smaller units must be positioned at the top.

If you are placing switch units one on top of the other, you must use the self-adhesive rubber pads supplied. Apply the pads to the underside of each switch, sticking one in the marked area at each corner.

Place the switch units on top of each other, ensuring that the pads of the upper unit line up with the recesses of the lower unit.

Supplying Power to the Switch

Power problems can be the cause of serious failures and downtime in your network. Ensure that the power input to your system is clean and free from sags and surges to avoid unforeseen network outages. 3Com recommends that you install power conditioning, especially in areas prone to blackout, power dips and electrical storms.

The unit is intended to be grounded. Ensure it is connected to earth ground during normal use. Installing proper grounding helps to avoid damage from lightning and power surges.

Before powering on the switch, verify that the network cables and the power cable are securely connected.

To power on the switch:

1)Plug the power cord into the power socket on the rear panel of the switch.

2)Plug the other end of the power cord into a power outlet.

1-7

Checking for Correct Operation

After you power on the switch, it automatically performs a power-on self-test (POST). During POST, the Power LED on the front panel of the switch flashes green.

When POST is complete, the Power LED turns green. If the Power LED turns yellow after POST, it means that POST failed and the switch has entered fail-safe mode.

The following summarizes the possible colors for the Power LED after POST.

Table 1-4 Summarizes the possible colors for the Power LED after POST

	Status	Meaning
	Green	The unit is powered on and ready for use.
	Yellow	Power-on self-test or loop back test failed. The switch is in fail-safe mode.
		This can happen if a port or ports fail when the switch was powered on.
		The unit is not receiving power.
	Off	z Verify that the power cord is connected correctly, and then try powering on
		the switch again
		z If the switch still does not operate, contact your 3Com network supplier

If POST fails, try the following:

zPower off the switch, and then power it on again. Check the Power LED and see if POST was successfully completed.

zReset the switch. See Resetting to Factory Defaults.

Resetting the switch to its factory default erases all your settings. You will need to reconfigure the switch after you reset it.

If these do not resolve the issue:

zCheck the 3Com Knowledgebase for a solution. To visit the 3Com Knowledgebase Web site, start your Web browser, and then enter http://knowledgebase.3com.com.

zContact your 3Com network supplier for assistance.

Using SFP Transceivers

The following sections describe how to insert an SFP transceiver into an SFP slot.

SFP transceivers are hot-insertable and hot-swappable. You can remove them from and insert them into any SFP port without having to power down the switch.

1-8

Approved SFP Transceivers

The following list of approved SFP transceivers is correct at the time of publication:

z

z

3CSFP91 SFP (SX) 3CSFP92 SFP (LX)

To access the latest list of approved SFP transceivers for the switch on the 3Com Web site, enter this URL into your Internet browser: http://www.3com.com

3Com recommends using 3Com SFPs on the switch. If you insert an SFP transceiver that is not supported, the switch will not recognize it.

Inserting an SFP Transceiver

To be recognized as valid, the SFP transceiver must have the following characteristics:

1000BASE-SX or 1000BASE-LX media type:

z1000BASE-SX SFP transceiver

Use this transceiver to connect the switch directly to a multimode fiber-optic cable.

z1000BASE-LX SFP transceiver

Use this transceiver to connect the switch directly to a single mode fiber-optic cable or to multi-mode fiber using a conditioned launch cable.

To activate the SFP port:

1)Hold the transceiver so that the fiber connector is toward you and the product label is visible, as shown in Figure 1-5.Ensure the wire release lever is closed (in the upright position).

Figure 1-5 Inserting an SFP Transceiver

Product label

Wire release lever

Suitable slot on host Switch

2)Gently slide the transceiver into the SFP slot until it clicks into place.

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SFP transceivers are keyed and can be properly inserted only one way. If the transceiver does not click when you insert it, remove it, turn it over, and reinsert it.

3)Remove the plastic protective cover, if fitted.

4)Connect the fiber cable.

5)Attach a male duplex LC connector on the network cable into the duplex LC connector on the transceiver.

6)Connect the other end of the cable to a device fitted with an appropriate Gigabit Ethernet connection.

7)Check the Module Active LEDs on the front of the switch to ensure that the SFP transceiver is operating correctly.

Removing an SFP Transceiver

To remove an SFP transceiver:

1)Disconnect the cable from the transceiver.

2)Move the wire release lever downwards until it is pointing toward you.

3)Pull the wire release lever toward you to release the catch mechanism.

The SFP transceiver should slide out easily.

Performing Spot Checks

At frequent intervals, you should visually check the switch. Regular checks can give you an early warning of a possible failure; any problems can then be attended to when there will be least effect on users.

3Com recommends periodically checking the items listed in Table 1-5.

Table 1-5 Items to Check

	Item		Operation
			Where possible, check that the cooling fan is operating by listening to the unit.
	Cooling fan		The fan is fitted near to the front right hand side of the unit (when viewed from
			the front).
	Cabling		Check that all external cabling connections are secure and that no cables are
			pulled taut.

Configuring IP Address

The switch’s IP configuration is determined automatically using DHCP, or manually using values you assign.

By default, the switch will use its default IP information. The default IP address is 169.254.xxx.xxx. If the MAC address is 08004E000102, the IP address would be 169.254.1.2.

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Automatic IP Configuration using DHCP

When you use the automatic IP configuration method, the switch tries to obtain its IP information without requesting user intervention from a DHCP server on the network.

You should use the automatic IP configuration method if:

zYour network uses DHCP to allocate IP information, or

zFlexibility is needed. If the switch is deployed onto a different subnet, it will automatically reconfigure itself with an appropriate IP address, instead of you having to manually reconfigure the switch.

You can use ip address dhcp-alloc command to define automatic IP configuration method and use display ip command to view the automatically allocated IP Information through the Console Port (see CLI Reference Guide).

Manual IP Configuration

When you configure the IP information manually, the switch remembers the information that you enter until you change it again.

You should use the manual IP configuration method if:

z

z

z

You do not have a DHCP server on your network, or

You want to remove the risk of the IP address ever changing, or Your DHCP server does not allow you to allocate static IP addresses.

For most installations, 3Com recommends that you configure the switch IP information manually. This makes management simpler and more reliable as it is not dependent on a DHCP server, and eliminates the risk of the IP address changing.

You can use ip address command to configure the static IP for your switch through the Console Port (see CLI Reference Guide).

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2 Connecting To the Web Interface

The switch has a built-in Web interface that you can use to set the user password, change the IP address that is assigned to the switch, and configure its advanced settings.

This chapter introduces the setting the menu items and buttons that are available on the Web interface. The following topics are covered:

z

z

z

z

z

Requirements for Accessing the Web Interface Choosing a Web Browser

Default User and Password Logging On to the Web Interface Navigating the Web Interface

Requirements for Accessing the Web Interface

To connect to the Web interface, you need the following:

zEnsure that the switch is connected to the network using a Category 5 twisted pair Ethernet cable with RJ-45 connectors.

zEnsure that you know your switch’s IP address. See Configuring IP Address.

zCheck that your management workstation is on the same subnet as your switch.

zChoose a suitable Web browser.

Choosing a Web Browser

To display the Web interface correctly, use one of the following Web browsers and platform combinations:

Table 2-1 Supported Web Browsers and Platforms

Platform		Windows 2000			Windows XP			Windows Vista
Browser
Internet Explorer 6		Yes			Yes			Yes
Internet Explorer 7		Yes			Yes			Yes
Firefox 1.5	Yes			Yes			Yes
Firefox 2	Yes			Yes			Yes
Netscape 8		Yes			Yes			Yes

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.

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Default User and Password

If you intend to manage the switch or to change the default password, you must log in with a valid user name and password. The switch has one default user name. The default user is listed in Table 2-2.

Table 2-2 Default User and Password

	User Name	Default Password			Access Level
	admin	-			Management: The user can access and change all
					manageable parameters

Logging On to the Web Interface

To log on to the Web interface, do the following:

1)Open your Web browser and enter the IP address of the switch that you wish to manage in the URL locator (For example, in the following format: http://xxx.xxx.xxx.xxx). The Login Page appears:

Figure 2-1 Login Page

2)Enter admin as your user name and leave the password field blank.

3)Click Login, The main Web interface page is displayed.

Navigating the Web Interface

The Web interface has been designed to enable you to easily perform advanced configuration tasks and view information about the switch.

Menu

The menu is located on the left side of the Web interface. When you click an item on the menu, the related screen appears in the main part of the interface. Some menu items will give you sub-menu tabs to choose from.

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Figure 2-2 Switch Screen Layout

Table 2-3 Available Menu Items

	Menu Item			Description
			Contains tabs that allow you to:
	Device Summary		z	Provide a summary of the switch’s basic settings and
				versions of current components.
			z Display the description for each color coded port.
	Save Configuration		Saves the switch’s configuration
		IP Setup	Allows you to setup, modify, or view the IP configuration
			parameters.
		ARP Setting	Allows a host to communicate with other hosts when only the
			IP address of its neighbors is known.
		Backup & Restore	Allows you to backup and restore the switch’s configuration.
		Firmware	Allows you to upgrade the current firmware via HTTP
		Upgrade
		Reset	Allows you to reset the switch to factory default settings
			Contains tabs that allow you to:
	Administration	System Access	z Display user summary information.
			z Create a new user.
			z	Modify existing users.
			z	Remove existing users.
		System Name	Allows you to set the system name.
		System Time	Allows you to set the system time.
		Logging	System Logs record and manage events and report errors
			and informational messages
			Contains tabs that allow you to:
		SNMP	z	Add community strings.
			z	Remove community strings.

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Menu Item	Description

Contains tabs that allow you to:

			z	Create a VLAN.
			z	Modify a VLAN.
		VLAN	z Modify VLAN membership for a port.
			z	Rename a VLAN.
			z	Remove a VLAN.
			z Display VLAN membership for a port.
			z	Display VLAN information.
			Allows you to configure a Spanning Tree Protocol.
		Spanning Tree	Contains tabs that allow you to:
			z Display selected spanning tree information for every port.
			z Display individual port spanning tree information.
			z Modify the spanning tree settings for a port.
		IGMP Snooping	Allows you to enable or disable IGMP snooping and IGMP
			query modes.
		Broadcast Storm	Allows you to enable or disable broadcast control.
		ACL	Configures the ACL.
		MAC Based ACL	Configures MAC Based ACL on the switch.
	Device	IP Based ACL	Configures IP Based ACL on the switch.
		ACL Binding	Configures ACL Binding on the switch.
		QoS	Configures QoS settings.
			Contains tabs that allow you to:
		CoS	z Displays CoS default settings assigned to ports.
			z	Defines CoS
		Queue	Configures Queue Setting.
		CoS to Queue	Displays and defines CoS to Queue.
		DSCP to Queue	Contains fields for mapping DSCP settings to traffic queues.
		Trust	Configures Trust Settings.
		Bandwidth	Displays and defines Bandwidth Settings.
			Contains tabs that allow you to:
			z Display Voice VLAN summary.
		VoIP Traffic	z Configure Voice VLAN global settings.
			z Configure Voice VLAN port settings.
		Setting
			z Display port information for Voice VLAN.
			z	Display OUI summary.
			z Add or remove OUI.
		LLDP	Allows you to configure LLDP global and port settings.

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		Menu Item				Description
					Contains tabs that allow you to:
			Administration		z Display selected port information for the entire switch.
					z Display individual port information.
					z Modify the port settings.
					Contains tabs that allow you to:
			Link Aggregation		z Display link aggregation summary.
		Port			z Create an aggregation group.
					z Modify the port memberships.
					z Remove an aggregation group.
			LACP		Configures the LACP.
			Statistics	Display statistics for a selected port.
			PoE(Only		Contains tabs that allow you to:
			supported by		z	Display PoE summary.
			2426-PWR Plus)		z	Configure PoE settings.
					Contains tabs that allow you to:
			Radius Client		z Display Radius Client information.
					z Configure Radius Client settings and set authentication
		Security				parameters.
					Contains tabs that allow you to:
			802.1X		z Display system authentication summary.
					z Display detailed information per port.
					z Configure system authentication settings.
			Address Table	Displays MAC address table information for ports and VLANs.
			Port Mirroring	Monitor traffic going in or out of ports.
		Monitoring
					Contains tabs that allow you to:
			Cable		z	Display selected cable diagnostics information for all
			Diagnostics			ports.
					z Display all cable diagnostics information for a single port.
		Help			Displays 3Com contact information and describes how to use
					the online help system.
		Logout			Allows you to securely log off the Web interface.

Buttons

Depending on the screen that is currently displayed, the following buttons may appear:

zApply: Click to apply any changes that you have made.

zCancel: Click to discard any unsaved changes.

zSelect All: Allows the user to select all ports.

zSelect None: Removes the ports selected.

zHelp: Click to display the context-sensitive help information for the screen that is currently displayed. The help pages provide information on the tasks that you can perform on each screen.

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3 Configuring the Switch

Configuring System Access

Network administrators can define user name, password, and access level for users using the System Access Interface. The Multi-Session Web feature is enabled on switch and allows 10 users to be created and access the switch concurrently. Access levels provide read or read/write permissions to users for configuring the switch. Login information is managed in the local database. A unique password is required of each user. Two access levels exist on the Web Interface:

zManagement access level: Provides the user with read/write access rights. There is always one management level user configured for the switch.

zMonitor access level: Provides the user with read-only system access rights.

This section contains the following topics:

z

z

z

z

Defining System Access

Modifying System Access

Removing System Access

Viewing System Access Settings

To ensure that unauthorized users do not access the Web interface, 3Com recommends that you set an admin password when you first configure the switch.

Defining System Access

The System Access Setup Page allows network administrators to define users, passwords, and access levels for users using the System Access Interface.

Click Administration > System Access > Setup. The System Access Setup Page opens.

Figure 3-1 System Access Setup Page

3-1

The System Access Setup Page contains the following fields:

Table 3-1 System Access Setup Page item description

Item	Description
User Name	Defines the user name. The default value is admin.
	Defines the user access level. The lowest user access level is Monitor and
	the highest is Management.
Access Level	z Management: Provides the user with read and write access rights. This
	is the default.
	z Monitor: Provides the user with read access rights.
Password	Defines the local user password. The default is blank.
Confirm Password	Verifies the password.

Modifying System Access

The System Access Modify Page allows network administrators to modify users, passwords, and access levels for users using the System Access Interface.

Click Administration > System Access > Modify. The System Access Modify Page opens.

Figure 3-2 System Access Modify Page

The System Access Modify Page contains the following fields:

Table 3-2 System Access Modify Page item description

	Item	Description
		Defines the user access level. The lowest user access level is Monitor and
	Access Level	the highest is Management.
		z Management: Provides the user with read and write access rights.
		z Monitor: Provides the user with read access rights.
	Password Modify	Enables modifying a password for an existing user.
	Password	Modifies the local user password.
	Confirm Password	Verifies the password.

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Removing System Access

The System Access Remove Page allows network administrators to remove users from the System Access Interface.

The last user with management access may not be deleted.

Click Administration > System Access > Remove. The System Access Remove Page opens.

Figure 3-3 System Access Remove Page

Viewing System Access Settings

The System Access Summary Page displays the current users and access levels defined on the switch. Click Administration > System Access > Summary. The System Access Summary Page opens.

Figure 3-4 System Access Summary Page

The System Access Summary Page contains the following fields:

3-3

Table 3-3 System Access Summary Page item description

Item	Description
User Name	Displays the user name.
Access Level	Displays the user access level.

Configuring IP and MAC Address Information

This section contains information for defining IP interfaces, and includes the following sections:

z

z

z

Defining IP Address

Configuring ARP Settings

Configuring MAC Address Table

Defining IP Address

To enable the other devices on the network to communicate with the switch, you need to assign an IP address to it: either by DHCP or by assigning a static IP address.

Click Administration > IP Setup. The IP Setup Page opens.

Figure 3-5 IP Setup Page

The IP Setup Page contains the following fields:

Table 3-4 IP Setup Page item description

	Item	Description
		Defines whether the IP address is configured statically or dynamically. The
		possible field values are:
	Configuration Method	z Static: Specifies that the IP address is configured by the user.
		z DHCP: Specifies that the IP address is dynamically obtained by DHCP
		Server.
	IP Address	Defines the IP address. The default value is 169.254.xxx.xxx. If the MAC
		address is 08004E000102, the IP address would be 169.254.1.2.
	Subnet Mask	Defines the subnet mask. The default value is 255.255.0.0.
	Gateway	Defines the gateway address. The default value is blank.

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Configuring ARP Settings

The Address Resolution Protocol (ARP) converts IP addresses into physical addresses, and maps the IP address to a MAC address. ARP allows a host to communicate with other hosts when only the IP addresses of its neighbors are known.

This section includes the following topics:

z

z

z

Defining ARP Settings

Removing ARP Entries

Viewing ARP Settings

Defining ARP Settings

The ARP Settings Setup Page allows network managers to define ARP parameters for specific interfaces.

Click Administration > ARP Settings > Setup. The ARP Settings Setup Page opens.

Figure 3-6 ARP Settings Setup Page

The ARP Settings Setup Page contains the following fields:

Table 3-5 ARP Settings Setup Page item description

	Item	Description
	Interface	Indicates the management VLAN (VLAN 1) for which ARP parameters are
		defined.
	IP Address	Defines the static IP address, which is associated with the static MAC
		address.
	MAC Address	Defines the static MAC address, which is associated with the static IP
		address.
		Specifies the aging time for dynamic ARP entries. After the ARP Entry
	ARP Entry Age Out	Age, dynamic ARP entries are deleted from the table. The range is
		1-40000000. The default value is 1200 seconds.

Removing ARP Entries

The ARP Entries Remove Page provides parameters for removing ARP entries from the ARP Table.

Click Administration > ARP Settings > Remove. The ARP Entries Remove Page opens.

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Figure 3-7 ARP Entries Remove Page

The ARP Entries Remove Page contains the following fields:

Table 3-6 ARP Entries Remove Page item description

	Item		Description
			Specifies the types of ARP entries that are cleared. The possible values
			are:
	Clear ARP Table		z None: Maintains the ARP entries.
	Entries		z All: Clears all ARP entries.
			z Dynamic: Clears only dynamic ARP entries.
			z Static: Clears only static ARP entries.
	Interface		Indicates the VLAN for which ARP parameters are defined.
	IP Address		Indicates the IP address which is associated with the MAC address.
	MAC Address		Displays the MAC address, which is associated in the ARP table with the
			IP address.
			Displays the ARP table entry type. Possible field values are:
	Status		z Dynamic: Indicates the ARP entry is learned dynamically.
			z Static: Indicates the ARP entry is a static entry.

Viewing ARP Settings

The ARP Settings Summary Page displays the current ARP settings.

Click Administration > ARP Settings > Summary. The ARP Settings Summary Page opens.

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