Cabletron Systems 2E49-27R, 2E48-27R User Manual

Download

2E48-27R

2E49-27R

2E48-27R/2E49-27R

SmartSwitch 2200

User’s Guide

PWR

RESET

CPU

COM

PWR

RESET

CPU

COM

2625

9032314-04

Only qualiﬁed personnel should perform installation procedures.

NOTICE

Cabletron Systems reserves the right to make changes in speciﬁcations and other information contained in this document without prior notice. The reader should in all cases consult Cabletron Systems to determine whether any such changes have been made.

The hardware, ﬁrmware, or software described in this manual is subject to change without notice. IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR ANY INCIDENTAL,

INDIRECT, SPECIAL, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING BUT NOT LIMITED TO LOST PROFITS) ARISING OUT OF OR RELATED TO THIS MANUAL OR THE INFORMATION CONTAINED IN IT, EVEN IF CABLETRON SYSTEMS HAS BEEN ADVISED OF, KNOWN, OR SHOULD HAVE KNOWN, THE POSSIBILITY OF SUCH DAMAGES.



Order Number: 9032314-04 September 1998

Cabletron Systems, SPECTRUM, LANVIEW, QuickSET

trademarks and All other product names mentioned in this manual may be trademarks or registered trademarks of

their respective companies.

SmartSwitch

is a trademark of Cabletron Systems, Inc.

, and

ecureFast

are registered

FCC NOTICE

This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

NOTE:

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment uses, generates, and can radiate radio frequency energy and if not installed in accordance with the operator’s manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause interference in which case the user will be required to correct the interference at his own expense.

WARNING:

party responsible for compliance could void the user’s authority to operate the equipment.

Changes or modiﬁcations made to this device which are not expressly approved by the

Printed on Recycled Paper

2E48-27R/2E49-27R User’s Guide i

Notice

INDUSTRY CANADA NOTICE

This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de la class A prescrites dans le Règlement sur le brouillage radioélectrique édicté par le ministère des Communications du Canada.

VCCI NOTICE

This is a Class A product based on the standard of the Voluntary Control Council for Interference by Information Technology Equipment (VCCI). If this equipment is used in a domestic environment, radio disturbance may arise. When such trouble occurs, the user may be required to take corrective actions.

CABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENT

IMPORTANT:

This document is an agreement between you, the end user, and Cabletron Systems, Inc. (“Cabletron”) that sets forth your rights and obligations with respect to the Cabletron software program (the “Program”) contained in this package. The Program may be contained in ﬁrmware, chips or other media. BY UTILIZING THE ENCLOSED PRODUCT, YOU ARE AGREEING TO BECOME BOUND BY THE TERMS OF THIS AGREEMENT, WHICH INCLUDES THE LICENSE AND THE LIMITATION OF WARRANTY AND DISCLAIMER OF LIABILITY. IF YOU DO NOT AGREE TO THE TERMS OF THIS AGREEMENT, PROMPTLY RETURN THE UNUSED PRODUCT TO THE PLACE OF PURCHASE FOR A FULL REFUND.

Before utilizing this product, carefully read this License Agreement.

CABLETRON SOFTWARE PROGRAM LICENSE

1. LICENSE package subject to the terms and conditions of this License Agreement.

You may not copy, reproduce or transmit any part of the Program except as permitted by the Copyright Act of the United States or as authorized in writing by Cabletron.

2. OTHER RESTRICTIONS. You may not reverse engineer, decompile, or disassemble the Program.

3. APPLICABLE LA W. This License Agreement shall be interpreted and governed under the laws and in the state and federal courts of New Hampshire. You accept the personal jurisdiction and venue of the New Hampshire courts.

. You have the right to use only the one (1) copy of the Program provided in this

ii 2E48-27R/2E49-27R User’s Guide

Notice

EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITY

1. EXCLUSION OF

writing, Cabletron makes no warranty, expressed or implied, concerning the Program (including its documentation and media).

CABLETRON DISCLAIMS ALL WARRANTIES, OTHER THAN THOSE SUPPLIED TO YOU BY CABLETRON IN WRITING, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, WITH RESPECT TO THE PROGRAM, THE ACCOMP ANYING WRITTEN MA TERIALS, AND ANY A CCOMP ANYING HARDWARE.

2. NO LIABILITY FOR CONSEQUENTIAL DAMAGES. IN NO EVENT SHALL

CABLETRON OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS, PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR RELIANCE DAMAGES, OR OTHER LOSS) ARISING OUT OF THE USE OR INABILITY TO USE THIS CABLETRON PRODUCT, EVEN IF CABLETRON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. BECAUSE SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR ON THE DURATION OR LIMITATION OF IMPLIED WARRANTIES, IN SOME INSTANCES THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO YOU.

WARRANTY. Except as may be specifically provided by Cabletron in

UNITED STATES GOVERNMENT RESTRICTED RIGHTS

The enclosed product (a) was developed solely at private expense; (b) contains “restricted computer software” submitted with restricted rights in accordance with Section 52227-19 (a) through (d) of the Commercial Computer Software - Restricted Rights Clause and its successors, and (c) in all respects is proprietary data belonging to Cabletron and/or its suppliers.

For Department of Defense units, the product is licensed with “Restricted Rights” as deﬁned in the DoD Supplement to the Federal Acquisition Regulations, Section 52.227-7013 (c) (1) (ii) and its successors, and use, duplication, disclosure by the Government is subject to restrictions as set forth in subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at

252.227-7013. Cabletron Systems, Inc., 35 Industrial Way, Rochester, New Hampshire 03867-0505.

2E48-27R/2E49-27R User’s Guide iii

Notice

SAFETY INFORMATION

CLASS 1 LASER TRANSCEIVERS

THE FE-100F3 FAST ETHERNET INTERFACE MODULE, FPIM-05 AND

FPIM-07 FDDI PORT INTERFACE MODULES, AND APIM-29 ATM

PORT INTERFACE MODULE USE CLASS 1 LASER TRANSCEIVERS.

READ THE FOLLOWING SAFETY INFORMATION BEFORE

INSTALLING OR OPERATING THESE MODULES.

The Class 1 laser transceivers use an optical feedback loop to maintain Class 1 operation limits. This control loop eliminates the need for maintenance checks or adjustments. The output is factory set, and does not allow any user adjustment. Class 1 Laser transceivers comply with the following safety standards:

• 21 CFR 1040.10 and 1040.11 U.S. Department of Health and Human Services (FDA).

• IEC Publication 825 (International Electrotechnical Commission).

• CENELEC EN 60825 (European Committee for Electrotechnical Standardization).

When operating within their performance limitations, laser transceiver output meets the Class 1 accessible emission limit of all three standards. Class 1 levels of laser radiation are not considered hazardous.

SAFETY INFORMATION

CLASS 1 LASER TRANSCEIVERS

LASER RADIATION AND CONNECTORS

When the connector is in place, all laser radiation remains within the ﬁber. The maximum amount of radiant power exiting the ﬁber (under normal conditions) is -12.6 dBm or 55 x 10-6 watts.

Removing the optical connector from the transceiver allows laser radiation to emit directly from the optical port. The maximum radiance from the optical port (under worst case conditions) is

0.8 W cm-2 or 8 x 103 W m2 sr-1.

Do not use optical instruments to view the laser output. The use of optical instruments to view laser output increases eye hazard. When viewing the output optical port, power must be removed from the network adapter.

iv 2E48-27R/2E49-27R User’s Guide

DECLARATION OF CONFORMITY

Notice

Application of Council Directive(s):

Manufacturer’s Name:

Manufacturer’s Address:

European Representative Name:

European Representative Address:

Conformance to Directive(s)/Product Standards:

Equipment T ype/Environment:

W e the undersigned, hereby declare, under our sole responsibility, that the equipment packaged with this notice conforms to the above directives.

Manufacturer Legal Representative in Europe

89/336/EEC 73/23/EEC

Cabletron Systems, Inc. 35 Industrial Way

PO Box 5005 Rochester, NH 03867

Mr. J. Solari Cabletron Systems Limited

Nexus House, Newbury Business Park London Road, Newbury Berkshire RG13 2PZ, England

EC Directive 89/336/EEC EC Directive 73/23/EEC EN 55022 EN 50082-1 EN 60950

Networking Equipment, for use in a Commercial or Light Environment.

Industrial

Mr. Ronald Fotino Mr. J. Solari

___________________________________ ___________________________________

Full Name Full Name Principal Compliance Engineer Managing Director - E.M.E.A.

___________________________________ ___________________________________

Title Title Rochester, NH, USA Newbury, Berkshire, England

___________________________________ ___________________________________

Location Location

2E48-27R/2E49-27R User’s Guide v

Notice

vi 2E48-27R/2E49-27R User’s Guide

CHAPTER 1 INTRODUCTION

1.1 Using This Guide.........................................................................1-1

1.2 Structure of This Guide................................................................1-1

1.3 2E4X-27R Overview....................................................................1-2

1.3.1 Connectivity ....................................................................1-4

1.3.2 Full Duplex Switched Ethernet........................................ 1-4

1.3.3 SmartTrunk.....................................................................1-4

1.3.4 Runtime IP Address Discovery.......................................1-5

1.3.5 Management...................................................................1-5

1.3.6 Switching Options...........................................................1-6

1.3.7 Standards Compatibility..................................................1-6

1.3.8 Year 2000 Compliant......................................................1-6

1.3.9 LANVIEW Diagnostic LEDs............................................1-6

1.3.10 Optional Features ...........................................................1-7

1.4 Document Conventions............................................................... 1-8

1.5 Getting Help.................................................................................1-9

1.6 Related Manuals........................................................................1-10

CHAPTER 2 NETWORK REQUIREMENTS

2.1 SmartTrunk..................................................................................2-1

2.2 10BASE-F Network .....................................................................2-1

2.3 FOIRL Fiber Optic Network......................................................... 2-2

2.4 100BASE-TX Network.................................................................2-2

2.5 100BASE-FX Fiber Optic Network ..............................................2-2

CHAPTER 3 INSTALLATION

3.1 Unpacking the 2E4X-27R............................................................3-1

3.2 Installing Options.........................................................................3-2

3.3 Installing the Device ....................................................................3-3

3.3.1 Tabletop or Shelf Installation ..........................................3-3

3.3.2 Rackmount Installation ................................................... 3-4

3.3.3 Connecting Power to the 2E4X-27R...............................3-7

3.4 Connecting to the Network.......................................................... 3-8

3.4.1 Connecting Fiber Optic Cables to Ports 1

Through 24 ..................................................................... 3-9

3.4.2 Connecting a UTP Segment to the FE-100TX.............. 3-10

3.4.3 Connecting a Fiber Optic Segment to the

FE-100FX and FE-100F3 ............................................. 3-12

3.5 Completing the Installation........................................................ 3-14

2E48-27R/2E49-27R User’s Guide vii

Contents

CHAPTER 4 TROUBLESHOOTING

4.1 Using LANVIEW...........................................................................4-1

4.2 FE-100TX LED.............................................................................4-4

4.3 Troubleshooting Checklist............................................................4-6

4.4 Using the RESET Button .............................................................4-7

CHAPTER 5 LOCAL MANAGEMENT

5.1 Overview......................................................................................5-1

5.2 Local Management Keyboard Conventions.................................5-2

5.3 Management Terminal Setup.......................................................5-3

5.3.1 Console Cable Connection..............................................5-4

5.3.2 Management Terminal Setup Parameters ......................5-5

5.3.3 Telnet Connections .........................................................5-6

5.3.4 Monitoring an Uninterruptible Power Supply...................5-7

5.4 Accessing Local Management.....................................................5-8

5.4.1 Navigating Local Management Screens..........................5-9

5.4.2 Selecting Local Management Menu Screen Items........5-11

5.4.3 Exiting Local Management Screens..............................5-11

5.5 Device Menu Screen..................................................................5-13

5.6 Device Configuration Menu Screen ...........................................5-14

5.7 General Configuration Screen ...................................................5-17

5.7.1 Setting the IP Address...................................................5-20

5.7.2 Setting the Subnet Mask...............................................5-21

5.7.3 Setting the Default Gateway..........................................5-23

5.7.4 Setting the TFTP Gateway IP Address .........................5-23

5.7.5 Setting the Device Date.................................................5-24

5.7.6 Setting the Device Time................................................5-25

5.7.7 Entering a New Screen Refresh Time...........................5-25

5.7.8 Setting the Screen Lockout Time..................................5-26

5.7.9 Setting the Operational Mode........................................5-26

5.7.10 Configuring the COM Port.............................................5-28

5.7.10.1 Changing the Com Port Application..............5-30

5.7.11 Clearing NVRAM...........................................................5-31

5.7.12 Enabling/Disabling IP Fragmentation............................5-32

5.8 SNMP Community Names Screen.............................................5-33

5.8.1 Establishing Community Names ...................................5-35

5.9 SNMP Traps Screen..................................................................5-36

5.9.1 Configuring the Trap Table............................................5-37

5.10 Switch Configuration Screen......................................................5-38

5.10.1 Setting the STA.............................................................5-40

5.10.2 Setting the Age Time Field............................................5-41

5.10.3 Setting (Enabling or Disabling) the Port Status.............5-41

viii 2E48-27R/2E49-27R User’s Guide

Contents

5.11 Ethernet Full Duplex Configuration Screen............................... 5-42

5.11.1 Setting the Operation Mode..........................................5-44

5.12 Device Specific Configuration Menu Screen............................. 5-45

5.13 System Resources Screen........................................................5-47

5.13.1 Setting the Reset Peak Switch Utilization.....................5-48

5.14 High Speed Interface Configuration Menu Screen....................5-49

5.15 High Speed Interface Configuration Screen..............................5-50

5.15.1 Configuring an FE-100FX or FE-100F3........................5-53

5.15.1.1 Setting the FE-100FX or FE-100F3

Operational Mode.........................................5-53

5.15.2 Configuring an FE-100TX.............................................5-54

5.15.2.1 Setting the FE-100TX Operational Mode.....5-54

5.15.2.2 Setting the FE-100TX Advertised Ability......5-54

5.16 FLASH Download Screen..........................................................5-55

5.16.1 Image File Download Using BootP...............................5-58

5.16.2 Image File Download Using TFTP................................ 5-58

5.16.3 Image File Download Using Runtime ........................... 5-59

5.17 Port Redirect Function Screen ..................................................5-60

5.17.1 Displaying the Source and Destination Entries............. 5-62

5.17.2 Changing Source and Destination Ports....................... 5-63

5.18 Broadcast Suppression Screen.................................................5-64

5.18.1 Setting the Threshold.................................................... 5-65

5.18.2 Setting the Reset Peak.................................................5-66

5.19 Device Statistics Menu Screen..................................................5-66

5.20 Switch Statistics Screen............................................................ 5-68

5.20.1 Using the Clear Counters Command............................5-69

5.21 Interface Statistics Screen.........................................................5-70

5.21.1 Displaying Interface Statistics.......................................5-73

5.21.2 Using the Clear Counters Command............................5-74

5.22 RMON Statistics Screen............................................................5-74

5.22.1 Displaying RMON Statistics.......................................... 5-78

5.22.2 Using the Clear Counters Command............................5-78

5.23 Network Tools............................................................................5-79

5.23.1 Built-in Commands ....................................................... 5-81

5.23.2 Special Commands....................................................... 5-89

APPENDIX A SPECIFICATIONS

A.1 Device Specifications ..................................................................A-1

A.2 Physical Properties......................................................................A-1

A.3 Electrical Specifications...............................................................A-1

A.4 Environmental Requirements......................................................A-2

A.5 Input/Output Ports .......................................................................A-2

A.6 COM Port/Pin Assignments.........................................................A-3

A.7 Regulatory Compliance...............................................................A-3

2E48-27R/2E49-27R User’s Guide ix

Contents

APPENDIX B FE-100TX, FE-100FX, AND FE-100F3

SPECIFICATIONS

B.1 FE-100TX.................................................................................... B-1

B.1.1 Auto-Negotiation............................................................. B-2

B.2 FE-100FX.................................................................................... B-3

B.3 FE-100F3.................................................................................... B-4

APPENDIX C OPTIONAL INSTALLATIONS AND

MODE SWITCH BANK SETTINGS

C.1 Required Tools............................................................................C-2

C.2 Removing the Chassis Cover .....................................................C-2

C.2.1 Setting the Mode Switches.............................................C-4

C.3 Installing Optional Fast Ethernet Interface Modules ...................C-7

INDEX

x 2E48-27R/2E49-27R User’s Guide

CHAPTER 1

INTRODUCTION

W elcome to the This guide describes the 2E48-27R and 2E49-27R SmartSwitch 2200 devices and provides information concerning network requirements, installation, troubleshooting, and the use of Local Management.

2E48-27R/2E49-27R SmartSwitch 2200 User’s Guide.

1.1 USING THIS GUIDE

Read through this guide completely to understand the 2E48-27R and 2E49-27R features, capabilities, and Local Management functions. A general working knowledge of Ethernet and IEEE 802.3 type data communications networks and their physical layer components is helpful when using this device.

NOTE

Unless noted differently, the information in this guide applies to both of the SmartSwitch 2200 devices, which are referred to as either “2E4X-27R” or “device.”

1.2 STRUCTURE OF THIS GUIDE

This guide is organized as follows:

Chapter 1,

describes the 2E4X-27R features. Directions about how to obtain additional help and a list of related manuals are also included.

Introduction

, outlines the contents of this manual and brieﬂy

Chapter 2,

to consider before installing the 2E4X-27R.

Chapter 3,

2E4X-27R and connect segments to the device.

Chapter 4,

LEDs, which can help to quickly diagnose network/operational problems.

Chapter 5,

Management and use the Local Management screens to manage the 2E4X-27R.

2E48-27R/2E49-27R User’s Guide 1-1

Network Requirements

Installation

Troubleshooting

Local Management

, provides instructions on how to install the

, describes the function of the LANVIEW

, describes how to access Local

, explains the network requirements

Chapter 1:

Introduction

Appendix A,

Speciﬁcations

, contains information on functionality and operating speciﬁcations, connector pinouts, environmental requirements, and physical properties.

Appendix B,

FE-100TX, FE-100FX, and FE-100F3 Speciﬁcations

, contains information about FE-100TX pinouts and information concerning cable types used with the FE-100FX and FE-100F3.

Appendix C,

Optional Installations and Mode Switch Bank Settings

, describes how to install optional Fast Ethernet Interface Modules and ho w to set the Mode Switch.

1.3 2E4X-27R OVERVIEW

The 2E4X-27R devices are 24-port (plus three optional) high-speed network switching devices that support traditional switching (bridging) and Cabletron Systems SecureFast Switching Virtual Network technology. The 2E4X-27R can connect individual high-bandwidth user devices, such as workstations, and provide a central switching point for multiple Ethernet segments built using devices such as Cabletron Systems HubSTACK or other third party stackable devices. The 2E4X-27R devices also have redundant power supplies.

The 2E48-27R and 2E49-27R, shown in Figure 1-1, are identical products except that ports 1 through 24 of the 2E48-27R support multimode ﬁber optic cabling while ports 1 through 24 of the 2E49-27R support single mode ﬁber optic cabling.

Ports 25 and 26 on the 2E4X-27R support optional Fast Ethernet Interface Modules and can provide uplinks to 100BASE-TX or 100BASE-FX Fast Ethernet networks. Port 27 supports an optional High Speed Interface Module (HSIM) that provides additional connectivity to various networking technologies such as Asynchronous Transfer Mode (ATM) and Fiber Distributed Data Interface (FDDI), Gigabit Ethernet, and Wide Area Network (WAN).

1-2 2E48-27R/2E49-27R User’s Guide

2E4X-27R Overview

PWR

RESET

CPU

COM

2E48-27R

PWR

RESET

CPU

COM

2E49-27R

RESET Button

System LEDs COM Port

RESET Button

System LEDs COM Port

Figure 1-1 The 2E48-27R and 2E49-27R

Port Status LEDs

Network Ports 1 - 24 (ST connectors), Supports Multimode Fiber Optics

Optional Fast Ethernet Interface Module Ports 25 and 26

Port Status LEDs

Network Ports 1 - 24 (ST connectors), Supports Single Mode Fiber Optics

Optional Fast Ethernet Interface Module Ports 25 and 26

Optional HSIM Slot

25 26

Optional HSIM Slot

25 26

23141_01

The 2E4X-27R is a tabletop unit that can be installed in a standard 19-inch rack using the supplied rack mounting hardware.

The 2E4X-27R has two power supplies. The power supplies load share 50% (+/-5%) of the power required by the device. If one power supply fails, the remaining power supply assumes the entire load of the device without interruption to network trafﬁc. Each power supply module supports its own ac input connection, which allows the user to connect each power supply to a different ac power circuit.

2E48-27R/2E49-27R User’s Guide 1-3

Chapter 1:

Introduction

1.3.1 Connectivity

The 2E48-27R connects to Ethernet networks or workstations through 24 ST ﬁber optic ports on the front panel. These ports support multimode ﬁber optic cables at lengths up to 2 kilometers. The ports are IEEE 802.3 10BASE-F compliant.

The 2E49-27R connects to Ethernet networks or workstations through 24 ST ﬁber optic ports on the front panel. These ports support single mode ﬁber optic cables at lengths up to 5 kilometers. The ports are FOIRL compliant.

All of the devices have tw o front panel slots (ports 25 and 26) for optional Fast Ethernet Interface Modules to support an uplink to 100 Mbps Fast Ethernet backbones or a high speed connection to a local server. There is also space for an optional HSIM to provide additional connectivity to various networking technologies.

1.3.2 Full Duplex Switched Ethernet

Each switched Ethernet port supports full wire-speed Ethernet communications and can be conﬁgured to operate in Full Duplex Switched Ethernet (FDSE) mode. FDSE allows each port to provide a dedicated 20 Mbps bandwidth for ﬁle server or high-end workstation connections. The optional Fast Ethernet ports provide up to 200 Mbps of bandwidth.

1.3.3 SmartTrunk

SmartTrunk, also referred to as SmartTrunking, is Cabletron Systems’ terminology for load balancing or load sharing. SmartTrunk technology provides an easy-to-implement mechanism to group, or aggregate, multiple physical links together to scale the backbone bandwidth beyond the limitations of a single link. All links are user-conﬁgurable so administrators can scale the backbone bandwidth by adding SmartTrunk links. The SmartTrunk beneﬁts are as follows:

•

All purchased bandwidth is used.

•

Distributed, resilient links increase reliability and performance.

•

Multiple technologies are supported within a single trunk for maximum ﬂexibility.

1-4 2E48-27R/2E49-27R User’s Guide

2E4X-27R Overview

For more information about SmartTrunk, refer to the Cabletron Systems

SmartTrunk User’s Guide

1.3.4 Runtime IP Address Discovery

This feature enables the 2E4X-27R to automatically accept an IP address from a Boot Strap Protocol (BootP) server on the network into NVRAM without requiring a user to enter an IP address through Local Management.

When the 2E4X-27R is connected to the network and powered up, Runtime IP Address Discovery (RAD) checks the 2E4X-27R for an IP address. If one has not yet been assigned (2E4X-27R IP address set to

0.0.0.0), RAD checks to see if any of the 2E4X-27R interfaces have a link. If so, RAD sends out Reverse Address Resolution Protocol (RARP) and BootP requests to obtain an IP address from a BootP or RARP server on the network.

The RAD requests start out at an interval of 1 second. The interval then doubles after every transmission until an interval of 300 seconds is reached. At this point, the interval remains at 300 seconds. The RAD requests continue until an IP address is received from a BootP or RARP server, or an IP address is entered using Local Management.

1.3.5 Management

Management of the 2E4X-27R is accomplished using SNMP compliant management tools for in-band management. Out-of-band Local Management is provided through the RJ45 COM port on the front panel using a VT100 terminal or a VT100 terminal emulator. Local Management can also be accessed through a Telnet connection to the RJ45 COM port.

Local Management provides the ability to manage the 2E4X-27R and any of the optional Fast Ethernet Interface Modules installed in ports 25 and 26 and the optional High Speed Interface Module (HSIM).

The user’s guide for the HSIM pro vides detailed information about Local Management for the HSIM.

Information about how to access and use Local Management is contained in Chapter 5.

2E48-27R/2E49-27R User’s Guide 1-5

Chapter 1:

Introduction

1.3.6 Switching Options

The 2E4X-27R provides IEEE 802.1D switching, IEEE 802.1Q switching, or SecureFast Switching Virtual Network Services between all of the front panel interfaces including Fast Ethernet Interface Modules and High Speed Interface Modules (HSIMs).

802.1Q switching and SecureFast switching allow for future migration to Virtual Network technologies without requiring the replacement of existing equipment.

1.3.7 Standards Compatibility

The 2E4X-27R is fully compliant with the IEEE 802.3 standard. The optional Fast Ethernet Interface Modules are fully compliant with the IEEE 802.3u standard.The 2E4X-27R provides IEEE 802.1D Spanning Tree Algorithm (STA) support to enhance the overall reliability of the network and protect against “loop” conditions. The 2E4X-27R supports a wide variety of industry standard MIBs including RFC 1213 (MIB II), RFC 1757 (RMON), RFC 1493 (Bridge MIB) and RFC 1354 (FIB MIB). A full suite of Cabletron Systems Enterprise MIBs provide a wide array of statistical information to enhance troubleshooting.

1.3.8 Year 2000 Compliant

The 2E4X-27R has an internal clock that can maintain the current time and date beyond the year 1999.

1.3.9 LANVIEW Diagnostic LEDs

LANVIEW diagnostic LEDs serve as an important troubleshooting aid by providing an easy way to observe the status of indi vidual ports and overall network operations. Chapter 4 provides details about the 2E4X-27R LANVIEW LEDs.

1-6 2E48-27R/2E49-27R User’s Guide

2E4X-27R Overview

1.3.10 Optional Features

Options for the 2E4X-27R are Fast Ethernet Interface Modules and High Speed Interface Modules, which add remote uplink capability.

Cabletron Systems provides Fast Ethernet Interface Modules to support uplinks to 100 Mbps Ethernet backbones or high speed connections to local servers. Table 1-1 provides a list of the Fast Ethernet Interface Modules.

P/N Description Application

FE-100TX

FE-100FX

FE-100F3

Table 1-1 Fast Ethernet Interface Modules

Supports Category 5 Unshielded Twisted Pair Uses RJ45 connector

Uses SC connector

(UTP) cabling, which has an impedance of 85 to

111 ohms, and type 1A Shielded Twisted Pair

(STP) cabling.

Supports multimode ﬁber optic cabling.

Supports single mode ﬁber optic cabling.

High Speed Interface Modules (HSIMs) are available from Cabletron Systems for additional connectivity to various networking technologies. The HSIMs available for the 2E4X-27R are listed in the Release Notes.

2E48-27R/2E49-27R User’s Guide 1-7

Chapter 1:

Introduction

1.4 DOCUMENT CONVENTIONS

The following conventions are used throughout this document:

Note

NOTE

TIP

symbol. Calls the reader’s attention to any item of

information that may be of special importance.

Tip

symbol. Conveys helpful hints concerning procedures or

actions.

CAUTION

WARNING

Caution

damage to the equipment.

Electrical Hazard Warning

that could result in personal injury or death due to an electrical hazard.

Warning

personal injury or death.

symbol. Contains information essential to avoid

symbol. Warns against an action

symbol. Warns against an action that could result in

1-8 2E48-27R/2E49-27R User’s Guide

Getting Help

1.5 GETTING HELP

For additional support related to this device or document, contact the Cabletron Systems Global Call Center:

World Wide Web http://www.cab letron.com/ Phone (603) 332-9400 Internet mail support@cabletron.com FTP ftp://ftp.cabletron.com/

To send comments or suggestions concerning this document, contact the Cabletron Systems Technical Writing Department via the following email address: TechWriting@cabletron.com

Make sure to include the document Part Number in the email message.

Before calling the Cabletron Systems Global Call Center, have the following information ready:

•

Your Cabletron Systems service contract number

•

A description of the failure

anonymous your email address

•

A description of any action(s) already taken to resolve the problem (e.g., changing mode switches, rebooting the unit, etc.)

•

The serial and revision numbers of all involved Cabletron Systems products in the network

• A description of your network environment (layout, cable type, etc.)

• Network load and frame size at the time of trouble (if known)

• The device history (i.e., have you returned the device before, is this a

recurring problem, etc.)

• Any previous Return Material Authorization (RMA) numbers

2E48-27R/2E49-27R User’s Guide 1-9

Chapter 1: Introduction

1.6 RELATED MANUALS

The following manuals may help to set up, control, and manage the 2E4X-27R:

Cabletron Systems HSIM-A6DP User’s Guide Cabletron Systems HSIM-F6 User’s Guide Cabletron Systems HSIM-FE6 User’s Guide Cabletron Systems HSIM-W87 User’s Guide Cabletron Systems HSIM-G01/G09 User’s Guide Cabletron Systems Ethernet Technology Guide Cabletron Systems Cabling Guide Cabletron Systems Port Based VLAN User’s Guide Cabletron Systems SmartTrunk User’s Guide These manuals can be obtained from the World Wide Web in Adobe

Acrobat Portable Document Format (PDF) at the following site:

http://www.cabletron.com/

NOTE

1-10 2E48-27R/2E49-27R User’s Guide

All documentation for the Cabletron Systems SecureF ast VLAN Manager software is contained on the VLAN Manager CD-ROM.

Documents for the Cabletron Systems HSIM-W6 and HSIM-W84 devices are contained on the QuickSET CD-ROM and are also available on the World Wide Web at: http://www.cabletron.com/

CHAPTER 2

NETWORK REQUIREMENTS

Before installing the 2E4X-27R or Fast Ethernet Interface Module (FE-100TX, FE-100FX, or FE-100F3), review the requirements and speciﬁcations referred to in this chapter concerning the following:

• SmartTrunk (Section 2.1)

• 10BASE-F Fiber Optic Network (Section 2.2)

• FOIRL Fiber Optic Network (Section 2.3)

• 100BASE-TX Twisted Pair Network (Section 2.4)

• 100BASE-FX Fiber Optic Network (Section 2.5)

The network installation must meet the guidelines to ensure satisfactory performance of this equipment. Failure to follow the guidelines may produce poor network performance.

NOTE

The Cabletron Systems

Guide

, referred to in the follo wing sections, can be f ound on the Cabletron Systems World Wide Web site: http://www.cabletron.com/

Cabling Guide

and

SmartTrunk User’s

2.1 SmartTrunk

To connect the 2E4X-27R to a network so it can take advantage of the SmartTrunk feature, there are certain rules concerning port connections and conﬁgurations that must be followed for proper operation. Refer to the Cabletron Systems SmartTrunk User’s Guide for additional information.

2.2 10BASE-F NETWORK

When connecting a 10BASE-F segment to any of the 2E48-27R ports (Interfaces 1 through 24), ensure that the network meets the Ethernet network requirements of the IEEE 802.3 standard for 10BASE-F. Refer to the Cabletron Systems Cabling Guide for details.

2E48-27R/2E49-27R User’s Guide 2-1

Chapter 2: Network Requirements

2.3 FOIRL FIBER OPTIC NETWORK

When connecting an FOIRL segment to any of the 2E49-27R ports (Interfaces 1 through 24), ensure that the network meets the Ethernet network requirements for FOIRL. Refer to the Cabletron Systems Cabling Guide for details.

2.4 100BASE-TX NETWORK

The 2E4X-27R, with an FE-100TX installed in ports 25 and 26, provides an RJ45 connection that supports UTP cabling, which has an impedance of 85 to 111 ohms. The device at the other end of the twisted pair segment must meet IEEE 802.3u 100BASE-TX Fast Ethernet network requirements for the devices to operate at 100 Mbps. Refer to the Cabletron Systems Cabling Guide for details.

NOTE

The 2E4X-27R with an FE-100TX installed is capable of operating at either 10 or 100 Mbps. The FE-100TX can automatically sense the speed of the other device and adjust its speed accordingly.

2.5 100BASE-FX FIBER OPTIC NETWORK

Ports 25 and 26 of the 2E4X-27R support the Cabletron Systems FE-100FX and FE-100F3 ﬁber optic interface modules. The device at the other end of the ﬁber optic segment must meet the 100BASE-FX Fast Ethernet network requirements to operate at 100 Mbps. Refer to the Cabletron Systems Cabling Guide for details.

Multimode Mode Fiber Optic Cable Length

The maximum multimode ﬁber optic cable length of a 100BASE-FX segment is covered in the Cabletron Systems Cabling Guide.

Single Mode Fiber Cable Lengths

The maximum single mode ﬁber optic length of a 100BASE-FX segment may be no more than 5 km between Data Terminal Equipment (DTE to DTE) in half duplex mode or 20 km (DTE to DTE) in full duplex mode.

2-2 2E48-27R/2E49-27R User’s Guide

CHAPTER 3

INSTALLATION

Only qualiﬁed personnel should install the 2E4X-27R.

This chapter provides all instructions required to install the 2E4X-27R. A Phillips screwdriv er is required to install options into the device or install the device into a rack. Follow the order of the sections listed below to correctly install the 2E4X-27R.

• Unpacking the 2E4X-27R (Section 3.1)

• Installing Options (Section 3.2)

• Installing the 2E4X-27R (on a shelf or tabletop, or into a standard

rack) (Section 3.3)

• Connecting to the Network (Section 3.4)

• Completing the Installation (Section 3.5)

3.1 UNPACKING THE 2E4X-27R

Unpack the 2E4X-27R as follows:

1. Open the box and remove the packing material protecting the

2E4X-27R.

2E48-27R/2E49-27R User’s Guide 3-1

Chapter 3: Installation

2. Verify the contents of the carton as listed in Table 3-1.

Table 3-1 Contents of 2E4X-27R Carton

Item Quantity

2E4X-27R 1 Antistatic wrist strap 1 Console Cable Kit 1 Rackmount Kit 1 Strain-Relief Bracket 1 Manual Accessory Kit 1 Power Cord (2E48-27R or 2E49-27R) 2

3. Remove the black and amber tape seal on the non-conductive bag to

remove the 2E4X-27R.

4. Perform a visual inspection of the device for any signs of physical

damage, and contact the Cabletron Systems Global Call Center if there are any signs of damage. Refer to Section 1.5 for details.

3.2 INSTALLING OPTIONS

NOTE

If the 2E4X-27R is to be installed with an optional Fast Ethernet Interface Module, refer to Appendix C for installation instructions. The installation instructions for the HSIMs are in the associated HSIM user’s guide.

3-2 2E48-27R/2E49-27R User’s Guide

Install any optional equipment before proceeding to

Section 3.3.

Installing the Device

3.3 INSTALLING THE DEVICE

The 2E4X-27R may be installed on a tabletop, shelf, or in a 19-inch rack.

Section 3.3.1 describes a tabletop or shelf installation and Section 3.3.2

describes the rackmount installation.

To prevent possible personal injury and/or damage to the unit, do NOT connect power to the 2E4X-27R until instructed to do so.

3.3.1 Tabletop or Shelf Installation

The following two subsections provide guidelines for installation on a tabletop or shelf.

Guidelines for Tabletop and Shelf Installations

Tabletop and shelf installations must be within reach of the network cabling and meet the requirements listed below:

• Locate the 2E4X-27R within seven feet of an appropriately grounded

power receptacle that meets the power supply requirements listed in

Appendix A.

• In a shelf installation, the shelf must support 13.6 kg (30 lb) of static

weight for each 2E4X-27R.

• Maintain a temperature of between 5°C (41°F) and 40°C (104°F) at

the installation site with ﬂuctuations of less than 10°C (18°F) per hour.

• Maintain a 2-inch clearance from the left, right, and rear sides of the

device to provide adequate ventilation.

Installation

For a tabletop or shelf installation, locate the 2E4X-27R within seven feet of its power source and on an unrestricted free surface area as shown in

Figure 3-1. Proceed to Section 3.3.3 for power connection instructions.

To ensure proper ventilation and prevent overheating, leave a minimum clearance space of 5.1 cm (2.0 in) at the left, right,

CAUTION

2E48-27R/2E49-27R User’s Guide 3-3

and rear of the 2E4X-27R.

Chapter 3: Installation

A = 15 cm (6 in)

2E48-27R

PWR

RESET

CPU

COM

2625

B = 45 cm (22.5 in) C = 53 cm (21 in) D = 213 cm (84 in)

23142-06

Figure 3-1 Tabletop or Shelf Installation

3.3.2 Rackmount Installation

T o install the 2E4X-27R in a 19-inch rack, Cabletron Systems includes an accessory kit containing the rackmount brackets, mounting screws, and a strain-relief bracket for cable management.

Guidelines for the Rackmount Installation

The installation site must be within reach of the network cabling and meet the requirements listed below:

• An appropriate grounded power receptacle must be located within seven feet of the location.

• Maintain a temperature of between 5°C (41°F) and 40°C (104°F) at the installation site with ﬂuctuations of less than 10°C (18°F) per hour.

To ensure proper ventilation and prevent overheating, leave a minimum clearance space of 5.1 cm (2.0 in) at the left, right,

CAUTION

WARNING

3-4 2E48-27R/2E49-27R User’s Guide

and rear of the 2E4X-27R.

Before installing the 2E4X-27R into a r ack, ensure that the r ack supports the device(s) without compromising the stability of the rack. Otherwise, personal injury and/or equipment damage may result.

Installing the Device

Installation

Rack mounting the 2E4X-27R involves the following:

• Attaching the strain-relief bracket

• Rack mounting the 2E4X-27R (attaching the mounting brackets and

fastening the 2E4X-27R to the rack)

Attaching the Strain-Relief Bracket

Attach the strain-relief bracket to the front of the 2E4X-27R as follows:

1. Locate the strain-relief bracket and four 8-32 x 3/8-inch pan-head

screws in the rackmount kit.

Do not attempt to attach the strain-relief bracket with screws other than the 8-32 x 3/8-inch screws included with the

CAUTION

2E4X-27R. Use of longer screws may damage the unit.

2. Place the 2E4X-27R upside down (as shown in Figure 3-2) on a clean

flat surface. Then attach the strain-relief bracket to the bottom of the 2E4X-27R using the four 8-32 x 3/8-inch pan-head screws.

Screws (4)

Strain-Relief Bracket

2625

2E48-27R

COM

CPU

RESET

PWR

23141-47

Figure 3-2 Attaching the Strain-Relief Bracket

2E48-27R/2E49-27R User’s Guide 3-5

Chapter 3: Installation

Rack Mounting the 2E4X-27R

Proceed as follows to install the 2E4X-27R into a 19-inch rack:

1. Remove and discard the four cover screws (two from each side)

located along the front edges of each side of the 2E4X-27R.

2. Locate the four 6-32 x 3/8-inch flathead cover replacement screws in

the rackmount kit. Use these screws to attach the rackmount brackets to the 2E4X-27R as shown in Figure 3-3.

Rackmount Brackets (2)

2625

2E48-27R

PWR

RESET

CPU

COM

Screws (4)

23141-04

Figure 3-3 Installing the Rackmount Brackets

3. With the mounting brackets installed, position the 2E4X-27R between

the vertical frame members of the 19-inch rack and fasten it securely with mounting screws as shown in Figure 3-4.

19-Inch Rack

PWR

RESET

COM

CPU

2E48-27R

Screws (4)

Figure 3-4 Installing the 2E4X-27R in a Rack

2625

23141-03

3-6 2E48-27R/2E49-27R User’s Guide

Installing the Device

3.3.3 Connecting Power to the 2E4X-27R

NOTE

sensing that allows connection to power sources ranging from 100–125 Vac or 200–250 Vac, 50/60 Hz.

To connect the 2E4X-27R to the power sources, proceed as follows:

1. Plug each power cord into a grounded wall outlet, see Figure 3-5. To

take advantage of the load sharing and redundancy capabilities, each power cord must be plugged into a dedicated ac outlet. The POWER LED turns ON (green) and the CPU LED turns ON (green) briefly.

2E48-27R

Primary

The 2E4X-27R has two power supplies with automatic voltage

Redundant

Figure 3-5 2E4X-27R Rear View

It takes approximately one minute for the 2E4X-27R to boot up.

NOTE

2314-62

2. Observe the LANVIEW LEDs. After a successful boot, the CPU LED

turns ON (green). If the CPU LED is not green after one minute and turning amber, there is no power redundancy. Check the power cord connections and the power source. If there are no problems with the power cord connections or power source and the CPU LED is still not green, contact the Cabletron Systems Global Call Center. Refer to

Section 1.5 for details.

2E48-27R/2E49-27R User’s Guide 3-7

Chapter 3: Installation

3.4 CONNECTING TO THE NETWORK

This section provides the procedures for connecting unshielded twisted pair (UTP) and ﬁber optic segments from the network or other devices to the 2E4X-27R.

NOTE

If the 2E4X-27R is being installed in a network using SmartTrunking, there are rules concerning the network cable and port conﬁgurations that must be followed for SmartTrunking to operate properly. Before connecting the cables, refer to the conﬁguration information.

SmartTrunk User’s Guide

for the

Ports 1 through 24 on the 2E48-27R has ST connectors for multimode ﬁber optic cable connections. Ports 1 through 24 on the 2E49-27R has ST connectors for single mode ﬁber optic cable connections. On all of these devices, ports 25 and 26 support FE-100TX, FE-100FX, or FE-100F3 Fast Ethernet Interface Modules.

The FE-100TX has an RJ45 connector for a twisted pair cable connection. The FE-100FX and FE-100F3 have SC connectors for multimode and single mode ﬁber optic cable connections, respectively.

To connect ST ﬁber optic cables to ports 1 through 24, refer to

Section 3.4.1.

T o connect a twisted pair cable to an optional FE-100TX in port slot 25 or 26, refer to Section 3.4.2.

To connect an SC ﬁber optic cable to an optional FE-100FX or FE-100F3 in port slot 25 or 26, refer to Section 3.4.3.

3-8 2E48-27R/2E49-27R User’s Guide

Connecting to the Network

3.4.1 Connecting Fiber Optic Cables to Ports 1

Through 24

Each ﬁber optic link consists of two strands of ﬁber optic cabling: the transmit (TX) and the receive (RX). The transmit strand from a 2E4X-27R port connects to the receive port of a ﬁber optic Ethernet device at the other end of the segment. The receive strand of the applicable port on the 2E4X-27R connects to the transmit port of the ﬁber optic Ethernet device.

Cabletron Systems recommends labeling ﬁber optic cables to indicate receive and transmit ends. Many cables are prelabeled, providing matching labels or tapes at both ends of each strand of cable.

The following instructions detail the process used to connect an ST connector to a 2E4X-27R port.

1. Remove the protective plastic covers from the fiber optic ports on the

applicable port on the module, and from the ends of the connectors on each fiber strand.

NOTE

CAUTION

Leave the protective rubber covers in place when the connectors are not in use to prevent contamination.

Do not touch the ends of the ﬁber optic strands, and do not let the ends come in contact with dust, dirt, or other contaminants.

Contamination of cable ends causes problems in data transmissions. If the ends of the ﬁber optic strands become contaminated, use a canned duster to blow the surfaces clean. A ﬁber port cleaning swab saturated with optical-grade isopropyl alcohol may also be used to clean the ends.

2. Refer to Figure 3-6 and attach one fiber to the applicable receive (RX)

port on the 2E4X-27R. Insert the ST connector into the port with the alignment slot on the connector inserted over the locking key on the port. Turn the connector clockwise to lock it in place.

3. Attach the other fiber of the pair to the applicable transmit (TX) port

on the 2E4X-27R using the same procedure to insert the ST connector.

2E48-27R/2E49-27R User’s Guide 3-9

Chapter 3: Installation

4. At the other end of the fiber optic cable, attach the fiber pair to the

transmit and receive ports of the device.

Receive (RX) LED

Figure 3-6 Fiber Optic Connection

23141-07

5. Verify that a link exists by checking that the port RX LED is on

(flashing amber, blinking green, or solid green). If the RX LED is off, perform the following steps until it is on:

a. Verify that the device at the other end of the segment is ON and

connected to the segment.

b. Check the crossover of the cables. Swap the cable connections if

necessary.

c. Check the cable for continuity. d. Check that the fiber optic connection meets the dB loss and cable

specifications outlined in Section 2.2 or Section 2.3 for multimode or single mode cabling, respectively.

If a link is not established, contact Cabletron Systems Global Call Center. Refer to Section 1.5 for details.

6. Repeat steps 1 through 5, above, until all connections have been made.

3.4.2 Connecting a UTP Segment to the FE-100TX

NOTE

3-10 2E48-27R/2E49-27R User’s Guide

To ensure proper operation, use only Category 5 Unshielded Twisted Pair (UTP) cabling that has an impedance between 85 and 111 ohms.

Connecting to the Network

An FE-100TX installed in port slot 25 and/or 26 has an internal crossover switch. When connecting a workstation, use a straight-through cable and set the Fast Ethernet Interface Module crossover switch shown in

Figure 3-7 to the crossed over position marked with X. When connecting

networking devices, such as another bridge, repeater, or router, use a straight-through cable and set the Fast Ethernet Interface Module crossover switch shown in Figure 3-7 to the not crossed over position, marked with =.

Position X (crossed over)

1. RX+

2. RX-

3. TX+

4. NC

5. NC

6. TX-

7. NC

FE-100TX

8. NC

Figure 3-7 FE-100TX Crossover Switch

Position = (not crossed over)

1. TX+

2. TX-

100

3. RX+

4. NC

5. NC

6. RX-

7. NC

8. NC

16651_05

A schematic of a crossover cable is shown in Figure 3-8. If the wires do not cross over, use the switch on the FE-100TX to internally cross over the RJ45 port. Figure 3-7 shows how to properly set the FE-100TX crossover switch.

NOTE: RX+/RX– and TX+/TX– must share a common color pair.

RJ45 Port RX+ RX– 2

TX+ TX–

10BASE-T Device Port

3 6

RJ45 to RJ45

RX+

RX–

TX+

TX–

2251-31

Figure 3-8 Schematic of Crossover Cable

Connect an FE-100TX to a twisted pair segment as follows:

1. Ensure that the device connected to the other end of the segment is

powered ON.

2E48-27R/2E49-27R User’s Guide 3-11

Chapter 3: Installation

2. Connect the twisted pair segment to the module by inserting the RJ45

connector on the twisted pair segment into the RJ45 port on the module shown in Figure 3-7.

3. Verify that a link exists by checking that the port RX LED is on

(flashing amber, blinking green, or solid green). If the RX LED is off and the TX LED is not blinking amber, perform the following steps until it is on:

a. V erify that the 100B ASE-TX device at the other end of the twisted

pair segment is powered up.

b. Verify that the RJ45 connector on the twisted pair segment has the

proper pinouts.

c. Check the cable for continuity. d. Make sure that the twisted pair connection meets the db loss and

cable specifications outlined in Section 2.4.

e. Confirm that the crossover switch is in the correct position.

If a link is not established, contact the Cabletron Systems Global Call Center. Refer to Section 1.5 for details.

3.4.3 Connecting a Fiber Optic Segment to the FE-100FX and FE-100F3

The FE-100FX and FE-100F3 have an SC style network port (see

Figure 3-9). Cabletron Systems supplies ﬁber optic cable that uses SC

style connectors, which are keyed to ensure proper crossover of the transmit and receive ﬁbers.

NOTES

3-12 2E48-27R/2E49-27R User’s Guide

An odd number of crossovers (preferably one) must be maintained between devices so that the transmit port of one device is connected to the receive port of the other device and vice versa.

If the ﬁber optic cable being used has SC style connectors that do not resemble MIC style connectors, or has SC connectors on one end and a different type on the other, such as ST connectors, ensure that the proper crossing over occurs.

Connecting to the Network

Fiber Optic Network Connection

1. Remove the protective plastic covers from the fiber optic ports on the

applicable port on the module and from the ends of the connectors.

The FE-100F3 uses Class 1 lasers. Do not use optical

CAUTION

instruments to view laser output increases eye hazard. When

instruments to view the laser output. The use of optical

viewing the output optical port, power must be removed from the network adapter.

Do not touch the ends of the ﬁber optic strands, and do not let the ends come in contact with dust, dirt, or other contaminants.

CAUTION

Contamination of the ends causes problems in data transmissions. If the ends of the ﬁber optic strands become contaminated, use a canned duster to blow the surfaces clean. A ﬁber port cleaning swab saturated with optical-grade isopropyl alcohol may also be used to clean the ends.

2. Insert one end of the SC connector into the FE-100FX or FE-100F3

installed in the 2E4X-27R. See Figure 3-9.

3. At the other end of the fiber optic cable, attach the SC connector to the

other device.

TX LED

RX LED

Figure 3-9 FE-100FX or FE-100F3 Port Connection

2E48-27R/2E49-27R User’s Guide 3-13

SC Connector

23141-34

Chapter 3: Installation

4. Verify that a link exists by checking that the port RX LED is ON

(flashing amber, blinking green, or solid green). If the RX LED is OFF and the TX LED is not blinking amber, perform the following steps until it is on:

NOTE

The port RX LED ﬂashes green and amber during bootup.

a. Check that the power is turned on for the device at the other end of

the link.

b. Verify proper crossover of fiber strands between the applicable

port on the 2E4X-27R and the fiber optic device at the other end of the fiber optic link segment.

c. Verify that the fiber connection meets the dB loss specifications

outlined in Section 2.5.

If a link has not been established, contact the Cabletron Systems Global Call Center. Refer to Section 1.5 for details.

3.5 COMPLETING THE INSTALLATION

After installing the 2E4X-27R and any optional Fast Ethernet Interface Modules and HSIM as appropriate, and making the connections to the network, proceed as follows:

1. Secure the cables by running the cables along the strain-relief bracket

and tying them to the strain-relief bracket using cable ties.

2. The 2E4X-27R is now ready to be set up through Local Management.

Refer to Chapter 5 for information on how to access and use Local Management to configure the 2E4X-27R.

3-14 2E48-27R/2E49-27R User’s Guide

CHAPTER 4

TROUBLESHOOTING

This chapter provides information concerning the following:

• Using LANVIEW (Section 4.1)

• FE-100TX LED (Section 4.2)

• Troubleshooting Checklist (Section 4.3)

• Using the RESET Button (Section 4.4)

4.1 USING LANVIEW

The 2E4X-27R uses the Cabletron Systems built-in visual diagnostic and status monitoring system called LANVIEW. The LANVIEW LEDs (Figure 4-1) allow quick observation of the network status to aid in diagnosing network problems. Refer to Table 4-1 for a description of the LEDs.

For a functional description of the LANVIEW LED on the optional Fast Ethernet Interface Module (FE-100TX), refer to Section 4.2.

All LEDs for the High Speed Interface Module (HSIM) are located on the HSIM and are described in the associated HSIM user’s guide.

PWR

RESET

COM

PWR

CPU

2E48-27R

Figure 4-1 LANVIEW LEDs

2E48-27R/2E49-27R User’s Guide 4-1

RX TX

HSIM-ASDP

23141-36

Chapter 4: Troubleshooting

NOTE

tables indicate the following:

Flashing indicates an LED is ﬂashing randomly. Blinking indicates an LED is ﬂashing at a steady rate

(approximately 50% on, 50% off).

Solid indicates a steady LED light. No pulsing.

Table 4-1 LANVIEW LEDs

LED Color State Recommended Action

The terms flashing, blinking, and solid used in the following

PWR OFF Device electronics not

receiving power from power supply(ies).

Green Functional. Power

supply(ies) operating normally.

Amber Indicates loss of power

supply redundancy.

CPU Off Power off. Power up device.

Red Blinking. Hardware

failure has occurred. Solid. Resetting,

normal power up reset.

Amber Blinking. Crippled. Contact the Cabletron

Solid. Testing. If the LED remains Amber for

Green Solid. Functional. No action. Amber

and Green

Booting. Blinks amber and green while booting.

1. Ensure that the power cords are plugged in correctly and that there is power at the power source.

2. Contact the Cabletron Systems Global Call Center (GCC).

No action.

1. Ensure that the power cords are plugged in correctly and that there is power at the power source.

2. Contact the Cabletron Systems GCC.

Contact the Cabletron Systems GCC.

If the LED remains Red for several minutes, Contact the Cabletron Systems GCC.

Systems GCC.

several minutes, contact the Cabletron Systems GCC.

No action.

4-2 2E48-27R/2E49-27R User’s Guide

Using LANVIEW

Table 4-1 LANVIEW LEDs (Continued)

LED Color State Recommended Action

RX (Receive)

TX (Transmit)

Off No link. No activity.

Port enabled or disabled.

Green Solid. Port enabled,

link, no activity. Blinking. Port

disabled, link.

Amber Flashing. Port

enabled, link, activity.

Red Diagnostic failure. Contact the Cabletron

Off Port enabled, and no

activity. Should ﬂash green every two seconds indicating BPDUs being sent if STA is enabled and there is a valid link.

Green Flashing. Indicates

activity. Rate indicates data rate.

Amber Blinking. Port in

standby. Port may be disabled due to Spanning Tree.

Red Flashing. Indicates

collision rate. Solid. Diagnostic

failure.

No error.

Systems GCC for assistance.

1. Ensure that the STA is enabled and that there is a valid link.

2. Contact the Cabletron Systems GCC for assistance.

No action.

1. Ensure that the port is not disabled.

2. Contact the Cabletron Systems GCC for assistance.

No action.

Contact the Cabletron Systems GCC for assistance.

2E48-27R/2E49-27R User’s Guide 4-3

Chapter 4: Troubleshooting

4.2 FE-100TX LED

The optional FE-100TX has one LED labeled 10/100. The 10/100 LED together with the receive LED allo ws the user to determine the link status and the operating speed of the Fast Ethernet Interface Module. The 10/100 LED and the Receive (RX) LED are shown in Figure 4-2.

Table 4-2 and Table 4-3 provide a functional description of the 10/100

LED when the RX LED is on or off, respectively.

LED

100

Receive (RX) LED

Figure 4-2 RX and 10/100 LEDs

100

FE-100TX

25 26

19602-41

NOTE

LED Color Indication

10/100 Off FE-100TX is operating at 10 Mbps.

is on.

Table 4-2 10/100 LED Indications When RX LED Is On

Green FE-100TX is operating at 100 Mbps.

4-4 2E48-27R/2E49-27R User’s Guide

A link exists if the associated port (25 or 26) RX (Receive) LED

FE-100TX LED

NOTE

LED Color Indication

10/100 Off No link or no cable attached. FE-100TX

LED is off.

Table 4-3 10/100 LED Indications When RX LED Is Off

forced to 10 Mbps operation, or is manually set to “auto-negotiate” mode.

Green No link or no cable attached. FE-100TX is

forced to 100 Mbps operation.

No link exists if the associated port (25 or 26) RX (Receive)

2E48-27R/2E49-27R User’s Guide 4-5

Chapter 4: Troubleshooting

4.3 TROUBLESHOOTING CHECKLIST

If the 2E4X-27R is not working properly , refer to Table 4-4 for a checklist of possible problems, causes, and recommended actions to resolve the problem.

Table 4-4 Troubleshooting Checklist

Problem Possible Cause Recommended Action

All LEDs are OFF. Loss of power. Check for proper connection

of the power cable and its access to a live outlet.

Installed improperly. Check the installation.

No Local Management Password screen.

Cannot contact the device from in-band management.

Port(s) goes into standby for no apparent reason.

User parameters (IP address, Device and Module name, etc.) were lost when the 2E4X-27R power was cycled or the front panel RESET button was pressed.

Autobaud is enabled, but the baud rate has not yet been sensed.

Terminal setup is not correct.

Improper console cable pinouts.

Improper Community Names T ab le.

IP address not assigned. Refer to Chapter 5 for IP

Port is disabled. Enable port. No link to device. Check link to device. Loop condition detected. 1. Review network design

Mode switch (7), NVRAM Reset, was changed sometime before either cycling power or pressing the RESET button causing the user-entered parameters to reset to factory default settings.

Press ENTER (RETURN) (may take up to four times).

Refer to Chapter 5 for proper setup procedures.

Refer to Appendix A for proper console port pinouts.

Refer to Chapter 5 for Community Names Table setup.

address assignment procedure.

and delete unnecessary loops.

2. Call the Cabletron Systems GCC if the problem continues.

1. Reenter the lost parameters as necessary.

2. Call the Cabletron Systems GCC if the problem continues.

4-6 2E48-27R/2E49-27R User’s Guide

Using the RESET Button

4.4 USING THE RESET BUTTON

The RESET button shown in Figure 4-3 resets the 2E4X-27R processor without affecting the NVRAM.

Pressing the RESET button resets the device, and all current switching being performed by the device is halted. A network

CAUTION

downtime of up to two minutes will result from this action.

RESET Button

RESET

COM

PWR

CPU

2E48-27R

23141-37

Figure 4-3 RESET Button

To reset the 2E4X-27R processor, press and release the RESET button. The 2E4X-27R goes through a reset process for approximately 45 seconds. Additional downtime may result as the device reenters the network.

2E48-27R/2E49-27R User’s Guide 4-7

Chapter 4: Troubleshooting

4-8 2E48-27R/2E49-27R User’s Guide

CHAPTER 5

LOCAL MANAGEMENT

This chapter explains how to set up a management terminal to access Local Management. It also explains how to use the Local Management screens and commands.

5.1 OVERVIEW

Local Management for the 2E4X-27R consists of a series of screens that allow the management of the 2E4X-27R. The screens allo w the user to do the following tasks:

• Assign IP address and subnet mask.

• Select a default gateway.

• Control access by establishing community names.

• Download a new operation ﬁrmware image.

• Designate which Network Management Workstations receive SNMP

traps from the device.

• View switch, interface, and RMON statistics.

• Conﬁgure ports.

• Control the number of receive broadcasts that are switched out to the

other interfaces.

• Clear NVRAM.

There are three ways to access Local Management:

• Locally using a VT type terminal connected to the COM port.

• Remotely using a VT type terminal connected through a modem.

• In-band through a Telnet connection.

2E48-27R/2E49-27R User’s Guide 5-1

Chapter 5: Local Management

5.2 LOCAL MANAGEMENT KEYBOARD CONVENTIONS

All key names appear as capital letters in this manual. Table 5-1 explains the keyboard conventions and the key functions that are used.

Table 5-1 Keyboard Conventions

Key Function

These are selection keys that perform the same

ENTER Key RETURN Key

ESCAPE (ESC) Key

SPACE Bar BACKSPACE Key

Local Management function. For example, “Press ENTER” means that you can press either ENTER or RETURN, unless this manual speciﬁcally instructs you otherwise.

This key allows an escape from a Local Management screen without saving changes. For example, “Press ESC twice” means the ESC key must be pressed quickly two times.

These keys cycle through selections in some Local Management ﬁelds. Use the SPACE bar to cycle forward through selections and use BACKSPACE to cycle backward through selections.

These are navigation keys. Use the UP-ARROW, DOWN-ARROW, LEFT-ARROW, and

Arrow Keys

[–] Key

DEL Key

RIGHT-ARROW keys to move the screen cursor. For example , “Use the arrow keys” means to press whichever arrow key moves the cursor to the desired ﬁeld on the Local Management screen.

This key decreases values from a Local Management increment ﬁeld. For example, “Press [–]” means to press the minus sign key.

The DEL (Delete) key removes characters from a Local Management ﬁeld. F or e xample, “Press DEL” means to press the Delete key.

5-2 2E48-27R/2E49-27R User’s Guide

Management Terminal Setup

5.3 MANA GEMENT TERMINAL SETUP

Use one of the following systems to access Local Management:

• An IBM or compatible PC running a VT series emulation software

package

• A Digital Equipment Corporation VT100 type terminal

• A VT type terminal running emulation programs for the Digital

Equipment Corporation VT100 series

• A remote VT100 type terminal via a modem connection

• In-band via a Telnet connection

2E48-27R/2E49-27R User’s Guide 5-3

Chapter 5: Local Management

5.3.1 Console Cable Connection

Use the Console Cable Kit provided with the 2E4X-27R to attach the management terminal to the 2E4X-27R COM port as shown in

Figure 5-1.

Connect an IBM PC or compatible device, running the VT terminal emulation, to the 2E4X-27R as follows:

1. Connect the RJ45 connector at one end of the cable (supplied in the

kit) to the COM port on the 2E4X-27R.

2. Plug the RJ45 connector at the other end of the cable into the

RJ45-to-DB9 adapter (supplied in the kit).

3. Connect the RJ45-to-DB9 adapter to the communications port on

the PC.

2625

RJ45 COM Port

2E48-27R

PWR

RESET

CPU

COM

UTP Cable

with RJ45 Connectors

RJ45-to-DB9

PC Adapter

23141-50

Figure 5-1 Management Terminal Connection

5-4 2E48-27R/2E49-27R User’s Guide

Management Terminal Setup

5.3.2 Management Terminal Setup Parameters

Table 5-2 lists the setup parameters for the local management terminal.

Table 5-2 VT Terminal Setup

Display Setup Menu

Columns -> Controls -> Auto Wrap -> Scroll -> Text Cursor -> Cursor Style ->

General Setup Menu

Mode -> ID number -> Cursor Keys -> Power Supply ->

Communications Setup Menu

Transmit -> Receive -> XOFF -> Bits -> Parity -> Stop Bit -> Local Echo -> Port -> Transmit -> Auto Answerback ->

Keyboard Setup Menu

Keys -> Auto Repeat -> Keyclick -> Margin Bell -> Warning Bell ->

80 Columns Interpret Controls No Auto Wrap Jump Scroll Cursor Underline Cursor Style

VT100, 7 Bit Controls VT100ID Normal Cursor Keys UPSS DEC Supplemental

2400, 4800, 9600, 19200 Receive=Transmit XOFF at 64 8 bits No Parity 1 Stop Bit No Local Echo DEC-423, Data Leads Only Limited T r ansmit No Auto Answerback

Typewriter Keys any option any option Margin Bell Warning Bell

2E48-27R/2E49-27R User’s Guide 5-5

Chapter 5: Local Management

5.3.3 Telnet Connections

Once the 2E4X-27R has a valid IP address, the user can establish a Telnet session with Local Management from any TCP/IP based node on the network. Telnet connections to the 2E4X-27R require the community name passwords assigned at the SNMP Community Names screen of the 2E4X-27R.

For information about setting the IP address, refer to Section 5.7. For information about assigning community names, refer to Section 5.8. Refer to the instructions included with the Telnet application for

information about establishing a Telnet session.

5-6 2E48-27R/2E49-27R User’s Guide

Management Terminal Setup

5.3.4 Monitoring an Uninterruptible Power Supply

If the 2E4X-27R is connected to an American Power Conversion (APC) Uninterruptible Power Supply (UPS) device for protection against the loss of power , a connection from the 2E4X-27R COM port to the UPS can be made to monitor the power status of the UPS. To use the COM port for this purpose, it must be reconﬁgured to support the UPS connection using the procedure described in Section 5.7.10, Conﬁguring the COM Port. Refer to the UPS documentation for details on how to access the status information.

The Console Cable Kit provided with the 2E4X-27R is used to attach the UPS to the 2E4X-27R COM port as shown in Figure 5-2.

T o connect the UPS de vice to the COM port of the 2E4X-27R, proceed as follows:

1. Connect the RJ45 connector at one end of the cable to the COM port

on the 2E4X-27R.

2. Plug the RJ45 connector at the other end of the cable into the

RJ45-to-DB9 male (UPS) adapter (Cabletron Systems part number,

9372066).

3. Connect the RJ45-to-DB9 male (UPS) adapter to the female DB9 port

on the rear of the UPS device (refer to the particular UPS device’ s user instructions for more speciﬁc information about the monitoring connection).

RJ45 COM Port

2E48-27R

PWR

RESET

CPU

COM

DB9 Port

UPS Device

RJ45-to-DB9 UPS Adapter

UTP Cable

with RJ45 Connectors

Figure 5-2 Uninterruptible Power Supply (UPS) Connection

2E48-27R/2E49-27R User’s Guide 5-7

2625

23141-51

Chapter 5: Local Management

5.4 ACCESSING LOCAL MANAGEMENT

Access to Local Management is controlled through the Local Management Password screen shown in Figure 5-3. Whene v er a connection is made to the 2E4X-27R the Local Management Password screen displays. Before continuing, the user must enter a password (community name) which is compared to the previously stored passwords. The lev el of access allo wed the user depends on the password. To set or change passwords, refer to Section 5.8. The following steps describe the procedure to access Local Management.

1. Turn on the terminal. Press ENTER (this may take up to four times,

because the COM port of the 2E4X-27R auto-senses the baud rate of the terminal) until the 2E4X-27R Local Management Password screen displays.

Event Message Line

2E48-27R LOCAL MANAGEMENT

CABLETRON Systems, Incorporated

P.O.Box 5005

Rochester, NH 03866-5005 USA

(603) 332-9400

Device Serial Number: XXXXXXXXX Device Hardware Revision: XX Device Firmware Revision: X.XX.XX Device BOOTPROM Revision: X.XX.XX

Enter Password:

23141-12

Figure 5-3 The 2E4X-27R Local Management Password Screen

2. Enter the Password and press ENTER. The default super-user access

password is “public” or press ENTER.

5-8 2E48-27R/2E49-27R User’s Guide

Accessing Local Management

NOTE

The User’s password is one of the community names speciﬁed in the SNMP Community Names screen. Access to certain Local Management capabilities depends on the degree of access accorded that community name. Refer to Section 5.8.

If an invalid password is entered, the terminal beeps and the cursor returns to the beginning of the password entry ﬁeld.

Entering a valid password causes the associated access level to display at the bottom of the screen and the Device Menu screen to display.

If no activity occurs for sev eral min utes, the Local Management Password screen redisplays and the password has to be reentered.

5.4.1 Navigating Local Management Screens

The 2E4X-27R Local Management application consists of a series of menu screens. Navigate through Local Management by selecting items from the menu screens.

The 2E4X-27R support three modes of switch operation. The switching modes are as follows:

• 802.1D SWITCHING (IEEE 802.1D switching)

• 802.1Q SWITCHING (IEEE 802.1Q port based VLANs)

• SECURE FAST VLAN (Cabletron Systems SecureFast switching)

NOTE

Refer to the Release Notes shipped with the product to verify which screens are supported in each of the three available switching modes.

The switch operational mode is set in the General Conﬁguration screen (Section 5.7). Depending on the Operational Mode set for the device, the hierarchy of the Local Management screens differs as shown in

Figure 5-4, Figure 5-5 and Figure 5-6. Refer to the appropriate ﬁgure that

relates to the Operational Mode set for the device to see the applicable Local Management screen hierarchy.

2E48-27R/2E49-27R User’s Guide 5-9

Chapter 5: Local Management

Password

Device Menu

Device Configuration Menu

Device Statistics Menu

Network Tools

General Configuration SNMP Community Names SNMP Traps Switch Configuration Ethernet Full Duplex

Configuration SmartTrunk

Configuration Device Specific

Configuration Menu

Switch Statistics Interface Statistics RMON Statistics

System Resources

High Speed Interface Configuration

Flash Download Port Redirect

Function Broadcast

Suppression

Figure 5-4 802.1D Switching Mode, LM Screen Hierarchy

Device Menu

Device Configuration Menu

Device Statistics Menu

Network Tools

General Configuration SNMP Community Names SNMP Traps Switch Configuration Ethernet Full Duplex

Configuration SmartTrunk

Configuration Device Specific

Configuration Menu

Switch Statistics Interface Statistics RMON Statistics

System Resources

High Speed Interface Configuration

Flash Download Broadcast

Suppression

802.1Q VLAN Configuration

Figure 5-5 802.1Q Switching Mode, LM Screen Hierarchy

Fast Ethernet Interfaces

HSIM

23142-43

Fast Ethernet Interfaces

HSIM

19601-82

5-10 2E48-27R/2E49-27R User’s Guide

Accessing Local Management

Password

Device Menu

Device Configuration Menu

Device Statistics Menu

Network Tools

General Configuration SNMP Community Names SNMP Traps

Ethernet Full Duplex Configuration

Device Specific Configuration Menu

Interface Statistics RMON Statistics

System Resources

High Speed Interface Configuration

Flash Download Port Redirect

Function

Fast Ethernet Interfaces

HSIM

19602-83

Figure 5-6 SecureFast VLAN Mode, LM Screen Hierarchy

5.4.2 Selecting Local Management Menu Screen Items

Select items on a menu screen by performing the following steps:

1. Use the arrow keys to highlight a menu item.

2. Press ENTER. The selected menu item displays on the screen.

5.4.3 Exiting Local Management Screens

There are two ways to exit the Local Management (LM) screens.

Using the Exit Command

To exit LM using the EXIT screen command, proceed as follows:

1. Use the arrow keys to highlight the EXIT command at the bottom of

the Local Management screen.

2. Press ENTER. The Local Management Password screen displays and

the session ends.

2E48-27R/2E49-27R User’s Guide 5-11

Chapter 5: Local Management

Using the RETURN Command

To exit LM using the RETURN command, proceed as follows:

1. Use the arrow keys to highlight the RETURN command at the bottom

of the Local Management screen.

2. Press ENTER. The previous screen in the Local Management

hierarchy displays.

NOTE

The user can also exit Local Management screens by pressing ESC twice. This exit method does not warn about unsaved changes and all unsaved changes are lost.

3. Exit from Local Management by repeating steps 1 and 2 until the

Device Menu screen displays.

4. To end the LM session, use the arrow keys to highlight the RETURN

command at the bottom of the Device Menu screen.

5. Press ENTER. The Local Management Password screen displays and

the session ends.

5-12 2E48-27R/2E49-27R User’s Guide

Device Menu Screen

5.5 DEVICE MENU SCREEN

The Device Menu screen is the access point for all Local Management screens. Figure 5-7 shows the Device Menu screen.

2E48-27R LOCAL MANAGEMENT

Device Menu

Device Type: 2E48-27R

DEVICE CONFIGURATION

DEVICE STATISTICS NETWORK TOOLS

Firmware Revision: XX.XX.XX BOOTPROM Revision: XX.XX.XX

EXIT

RETURN

23142-13

Figure 5-7 Device Menu Screen

If the terminal is idle for several minutes, the Local

NOTE

Management Password screen redisplays and the session ends.

The following explains each Device Menu screen ﬁeld as shown in

Figure 5-7:

DEVICE CONFIGURATION

The Device Conﬁguration screen provides access to the Local Management screens that are used to conﬁgure the 2E4X-27R and also provides access to the Device Speciﬁc Conﬁguration Menu screen. The Device Speciﬁc Conﬁguration Menu screen provides access to the screens that allow the user to check the 2E4X-27R resources and set operating parameters speciﬁc to each port.

2E48-27R/2E49-27R User’s Guide 5-13

Chapter 5: Local Management

For details about the Device Conﬁguration Menu screen, refer to

Section 5.6. For details about the Device Speciﬁc Conﬁguration Menu

screen, refer to Section 5.12.

DEVICE STATISTICS

Device Statistics accesses the Device Menu screen, which pro vides access to screens that allow the user to obtain switch, interface, and RMON statistics information about the 2E4X-27R. For details, refer to

Section 5.19.

NETWORK TOOLS

The Network Tools function resides on the 2E4X-27R and consists of a series of commands that allow the user to access and manage network devices. Section 5.23 explains how to use the Network Tools utility.

5.6 DEVICE CONFIGURATION MENU SCREEN

The Device Conﬁguration Menu screen, Figure 5-8, provides access to a series of Local Management screens that allow the user to conﬁgure and monitor operating parameters, modify SNMP community names, set SNMP traps, conﬁgure switch parameters and conﬁgure the 2E4X-27R ports.

NOTE

5-14 2E48-27R/2E49-27R User’s Guide

The following menu items on the Device Conﬁguration Menu screen may not display if the operational mode of the device is set to SECURE FAST VLAN:

SWITCH CONFIGURATION SMARTTRUNK CONFIGURATION Refer to the Release Notes to see if the above screens are

supported in SECURE FAST VLAN mode. Section 5.7.9 describes how to set the operational mode.

Device Conﬁguration Menu Screen

To access the Device Conﬁguration Menu screen from the Device Menu screen, use the arrow keys to highlight the DEVICE CONFIGURATION menu item and press ENTER. The Device Conﬁguration Menu screen displays.

2E48-27R LOCAL MANAGEMENT

Device Configuration Menu

Device Type: 2E48-27R

GENERAL CONFIGURATION

SNMP COMMUNITY NAMES SNMP TRAPS SWITCH CONFIGURATION ETHERNET FULL DUPLEX CONFIGURATION SMARTTRUNK CONFIGURATION DEVICE SPECIFIC CONFIGURATION

Firmware Revision: XX.XX.XX BOOTPROM Revision: XX.XX.XX

EXIT

RETURN

23142_66

Figure 5-8 Device Conﬁguration Menu Screen

The following brieﬂy explains each screen that is accessible from the Device Conﬁguration Menu screen:

GENERAL CONFIGURATION

The General Conﬁguration screen allows the user to monitor and conﬁgure operating parameters for the 2E4X-27R. For details, refer to Section 5.7.

SNMP COMMUNITY NAMES

The SNMP Community Names screen allows the user to enter new, change, or review the community names used as access passwords for device management operation. Access is limited based on the password level of the user. For details, refer to Section 5.8.

2E48-27R/2E49-27R User’s Guide 5-15

Chapter 5: Local Management

SNMP TRAPS

The SNMP Traps screen provides display and conﬁguration access to the table of IP addresses used for trap destinations and associated community names. For details, refer to Section 5.9.

SWITCH CONFIGURATION

The Switch Conﬁguration screen provides the basic setup options for customizing the operation of a switch device in the network. For details, refer to Section 5.10.

ETHERNET FULL DUPLEX CONFIGURATION

The Ethernet Full Duplex Conﬁguration screen allows each 10 Mbps port (1 to 24) to be set for either Standard Ethernet or Full Duplex operation. The screen also indicates whether or not each port is linked to another Ethernet device and if that port is enabled. For details, refer to the

Section 5.11.

SMARTTRUNK CONFIGURATION

The SmartTrunk Conﬁguration screen allows the user to logically group interfaces to aggregate high speed uplinks. For details, refer to the Cabletron Systems SmartTrunk User’s Guide.

DEVICE SPECIFIC CONFIGURATION

The Device Speciﬁc Conﬁguration Menu screen allows the user to select screens to conﬁgure ports or check system resources speciﬁc to the 2E4X-27R. For details, refer to Section 5.12.

5-16 2E48-27R/2E49-27R User’s Guide

General Conﬁguration Screen

5.7 GENERAL CONFIGURATION SCREEN

The General Conﬁguration screen, Figure 5-9, allows the user to set the system date and time, IP address and subnet mask, the default gateway, the TFTP gateway IP address, and the operational mode. Also, clear the NVRAM, set the screen refresh time, the screen lockout time, the IP fragmentation, the COM port conﬁguration, and monitor the total time (uptime) that the device has been running.

To access the General Conﬁguration screen from the Device Conﬁguration Menu screen, use the arrow keys to highlight the GENERAL CONFIGURATION menu item and press ENTER. The General Conﬁguration screen displays.

Event Message Line

Device Type: 2E48-27R

MAC Address: IP Address: Subnet Mask: Default Gateway: TFTP Gateway IP Addr:

Operational Mode: [802.1D SWITCHING]

Com: [ENABLED] Application: [LM]

Clear NVRAM [NO]

2E48-27R LOCAL MANAGEMENT

General Configuration

00-00-ID-00-00-00

0.0.0.0

255.255.0.0 NONE DEFINED

0.0.0.0

IP Fragmentation [ENABLED]

EXIT

Firmware Revision: XX.XX.XX BOOTPROM Revision: XX.XX.XX

Device Date: Device Time: Screen Refresh Time: Screen Lockout Time: Device Uptime XX D XX H XX M

10/11/97 14:23:00 30 sec. 15 min.

RETURNSAVE

23142_15

Figure 5-9 General Conﬁguration Screen

The following brieﬂy explains each General Conﬁguration screen ﬁeld:

MAC Address (Read-Only)

Displays the base physical address of the 2E4X-27R.

2E48-27R/2E49-27R User’s Guide 5-17

Chapter 5: Local Management

IP Address (Modiﬁable)

Displays and allows the user to set the IP address for the 2E4X-27R. To set the IP address, refer to Section 5.7.1. The IP address can also be set through Runtime IP Address Discovery as previously described in

Section 1.3.4.

Subnet Mask (Modiﬁable)

Displays the subnet mask for the 2E4X-27R. A subnet mask “masks out” the network bits of the IP address by setting the bits in the mask to 1 when the network treats the corresponding bits in the IP address as part of the network or subnetwork address, or to 0 if the corresponding bit identiﬁes the host. When an IP address is entered in the IP Address ﬁeld, the Subnet Mask ﬁeld automatically changes to the default subnet mask for that IP address. For details about how to change the subnet mask from its default value, refer to Section 5.7.2.

Default Gateway (Modiﬁable)

Displays the default gateway for the 2E4X-27R. This ﬁeld is not deﬁned until an appropriate value is entered. For details about why and ho w to set the Default Gateway, refer to Section 5.7.3.

TFTP Gateway IP Addr (Modiﬁable)

Displays and allows the user to set the TFTP Gateway IP address for the 2E4X-27R. To set the TFTP Gateway IP address, refer to Section 5.7.4.

Device Date (Modiﬁable)

Contains a value that the device recognizes as the current date. To set a new device date, refer to Section 5.7.5.

Device Time (Modiﬁable)

Contains a value that the device recognizes as the current time. To enter a new time, refer to Section 5.7.6.

Screen Refresh Time (Modiﬁable)

Contains the rate at which the screens are updated. This setting determines how frequently (in seconds) information is updated on the screen. To enter a new update time, refer to Section 5.7.7.

5-18 2E48-27R/2E49-27R User’s Guide

General Conﬁguration Screen

Screen Lockout Time (Modiﬁable)

Contains the maximum number of minutes that the Local Management application displays a device’s screen while awaiting input or action from a user. F or example, if the number 5 is entered in this ﬁeld, the user has up to ﬁve minutes to respond to each of the speciﬁed device’s Local Management screens.

In this example, after ﬁve minutes of “idleness” (no input or action), the terminal “beeps” ﬁve times, the Local Management application terminates the session, and the display returns to the Local Management Password screen. To enter a new lockout time, refer to Section 5.7.8.

Device Uptime (Read-Only)

Displays the total time that the device has been operating.

Operational Mode (Selectable)

Allows the user to set the 2E4X-27R so it operates as an IEEE 802.1D switch (802.1D SWITCHING option), an IEEE 802.1Q switch (802.1Q SWITCHING option), or as a Cabletron Systems SecureFast switch (SECURE FAST VLAN option).

In 802.1D SWITCHING mode, the 24 ports located on the front panel, and each Fast Ethernet Interface Module, and HSIM port(s) are bridged to each other.

In 802.1Q SWITCHING mode, the 2E4X-27R is able to increase its switching functionality by creating and maintaining IEEE port based VLANs.

When the operational mode is set to SECURE FAST VLAN, the 2E4X-27R acts as a SecureFast switch. With the Cabletron Systems VLAN Manager software, the 2E4X-27R is able to increase its switching functionality by creating and maintaining Virtual LANs (VLANs).

For details on how to select the Operational Mode, refer to Section 5.7.9.

Com (Toggle)

Allows the user to enable or disable the COM port. The selection toggles between ENABLED and DISABLED. The default is ENABLED. For details about setting up the COM port, refer to Section 5.7.10.

2E48-27R/2E49-27R User’s Guide 5-19

Chapter 5: Local Management

Application (Toggle)

Allows the user to set the application that the COM port will support. The ﬁeld toggles between LM (Local Management) and UPS (Uninterruptible Power Supply). The default is LM.

The UPS setting allows the COM port to be used to monitor an American Power Conversion (APC) Uninterruptible Power Supply (UPS).

The baud rate setting for LM is automatically sensed. For UPS, the baud rate is automatically set to 2400.

For details about how to conﬁgure the COM port for v arious applications, refer to Section 5.7.10.

Clear NVRAM (Toggle)

Allows the user to reset NVRAM to the factory default settings. All user-entered parameters, such as IP address and Community Names, are then replaced with 2E4X-27R default conﬁguration settings. For details, refer to Section 5.7.11.

IP Fragmentation (Toggle)

Allows the user to enable or disable IP Fragmentation. The default setting for this is ﬁeld is ENABLED. If the 2E4X-27R is to be bridged to an FDDI ring via an HSIM-F6, IP Fragmentation must be enabled. If IP Fragmentation is disabled, all FDDI frames that exceed the maximum Ethernet frame size are discarded. For details on enabling IP Fragmentation, refer to Section 5.7.12.

5.7.1 Setting the IP Address

To set the IP address, perform the following steps:

1. Use the arrow keys to highlight the IP Address field.

2. Enter the IP address into this field using Dotted Decimal Notation

(DDN) format. For example: 134.141.79.120

3. Press ENTER. If the IP address is a valid format, the cursor returns to

the beginning of the IP address field. If the entry is not valid, the screen displays the message “INVALID IP ADDRESS OR FORMAT ENTERED”. Local Management does not alter the current value and refreshes the IP address field with the previous value.

5-20 2E48-27R/2E49-27R User’s Guide

General Conﬁguration Screen

4. Use the arrow keys to highlight the SAVE command, then press

ENTER. The warning screen shown in Figure 5-11 displays.

WARNING!

YOU HAVE ELECTED TO SAVE ONE OR MORE CONFIGURATION ITEMS THAT REQUIRE RESETTING THIS MODULE.

ARE YOU SURE YOU WANT TO CONTINUE?

YES

Figure 5-10 Conﬁguration Warning Screen

19601-84

5. Use the arrow keys to highlight the YES command, then press

ENTER. The changes are saved and the device reboots.

5.7.2 Setting the Subnet Mask

If the management workstation that is to receive SNMP traps from the 2E4X-27R is located on a separate subnet, the subnet mask for the 2E4X-27R may need to be changed from its default.

To change the subnet mask from its default, perform the following steps:

1. Use the arrow keys to highlight the Subnet Mask field.

2. Enter the subnet mask into this field using Dotted Decimal Notation

(DDN) format. For example: 255.255.0.0

2E48-27R/2E49-27R User’s Guide 5-21

Chapter 5: Local Management

3. Press ENTER. If the subnet mask is valid, the cursor returns to the

beginning of the Subnet Mask field. If the entry is not valid, the screen displays the message “INVALID SUBNET MASK OR FORMAT ENTERED”. Local Management does not alter the current value, but it does refresh the Subnet Mask field with the previous value.

4. Use the arrow keys to highlight the SAVE command, then press

ENTER. The warning screen shown in Figure 5-11 displays.

WARNING!

YOU HAVE ELECTED TO SAVE ONE OR MORE CONFIGURATION ITEMS THAT REQUIRE RESETTING THIS MODULE.

ARE YOU SURE YOU WANT TO CONTINUE?

YES

Figure 5-11 Conﬁguration Warning Screen

19601-84

5. Use the arrow keys to highlight the YES command, then press

ENTER. The changes are saved and the device reboots.

5-22 2E48-27R/2E49-27R User’s Guide

General Conﬁguration Screen

5.7.3 Setting the Default Gateway

If the SNMP management station is located on a different IP subnet than the 2E4X-27R, a default gateway must be speciﬁed. When an SNMP T rap is generated, the 2E4X-27R sends the Trap to the default gateway. To set the default gateway, perform the following steps:

1. Use the arrow keys to highlight the Default Gateway field.

2. Enter the IP address of the default gateway using the DDN format.

For example: 134.141.79.121

3. Press ENTER. If the default gateway entered is a valid format, the

cursor returns to the beginning of the Default Gateway field. If the entry is not valid, the screen displays “INVALID DEFAULT GATEWAY OR FORMAT ENTERED”. Local Management does not alter the current value, but it does refresh the Default Gateway field with the previous value.

4. Use the arrow keys to highlight the SAVE command.

5. Press ENTER. The message “SAVED OK” displays at the top of the

screen.

5.7.4 Setting the TFTP Gateway IP Address

If the network TFTP server is located on a different IP subnet than the 2E4X-27R, a Gateway IP address should be speciﬁed. To set the TFTP Gateway IP address, perform the following steps:

1. Use the arrow keys to highlight the TFTP Gateway IP Addr field.

2. Enter the IP address of the TFTP gateway using the DDN format.

For example: 134.141.80.122

3. Press ENTER. If the TFTP gateway IP address entered is a valid

format, the cursor returns to the beginning of the TFTP Gateway IP Address field. If the entry is not valid, the screen displays “INVALID TFTP GATEWAY IP ADDRESS OR FORMAT ENTERED”. Local Management does not alter the current value, but it does refresh the TFTP Gateway IP Address field with the previous value.

4. Use the arrow keys to highlight the SAVE command, then press

ENTER. The warning screen shown in Figure 5-12 displays.

2E48-27R/2E49-27R User’s Guide 5-23

Chapter 5: Local Management

WARNING!

YOU HAVE ELECTED TO SAVE ONE OR MORE CONFIGURATION ITEMS THAT REQUIRE RESETTING THIS MODULE.

ARE YOU SURE YOU WANT TO CONTINUE?

YES

Figure 5-12 Conﬁguration Warning Screen

19601-84

5. Use the arrow keys to highlight the YES command, then press

ENTER. The changes are saved and the device reboots.

5.7.5 Setting the Device Date

The 2E4X-27R is year 2000 compliant so that the Device Date ﬁeld can be set beyond the year 1999.

To set the system date, perform the following steps:

1. Use the arrow keys to highlight the Device Date field.

2. Enter the date in this format: MM/DD/YYYY

NOTE

It is not necessary to add separators between month, day, and year numbers, as long as each entry has the correct number of numeric characters. For example, to set the date to 03/17/1997, type “03171997” in the Device Date ﬁeld.

3. Press ENTER to set the system calendar to the date in the input field.

5-24 2E48-27R/2E49-27R User’s Guide

General Conﬁguration Screen

4. Use the arrow keys to highlight the SAVE command at the bottom of

the screen and press ENTER.

If the date entered is a valid format, the message displays “SAVED OK” at the top of the screen. If the entry is not valid, Local Management does not alter the current value, but it does refresh the Device Date ﬁeld with the previous value.

5.7.6 Setting the Device Time

To set the device time, perform the following steps:

1. Use the arrow keys to highlight the Device Time field.

2. Enter the time in this 24-hour format: HH:MM:SS

NOTE

When entering the time in the system time ﬁeld, separators between hours, minutes, and seconds are not needed as long as each entry uses two numeric characters. F or e xample, to set the time to 6:45 P.M., type “184500” in the Device Time ﬁeld.

3. Press ENTER to set the system clock to the time in the input field.

4. Use the arrow keys to highlight the SAVE command at the bottom of

the screen and press ENTER.

If the time entered is a valid format, the message displays “SAVED OK” at the top of the screen. If the entry is not valid, Local Management does not alter the current value and refreshes the Device Time ﬁeld with the previous value.

5.7.7 Entering a New Screen Refresh Time

The screen refresh time is set from 3 to 99 seconds with a default of 3 seconds. To set a new screen refresh time, perform the following steps:

1. Use the arrow keys to highlight the Screen Refresh Time field.

2. Enter a number from 3 to 99.

3. Press ENTER to set the refresh time to the time entered in the input

field.

2E48-27R/2E49-27R User’s Guide 5-25

Chapter 5: Local Management

4. Use the arrow keys to highlight the SAVE command at the bottom of

the screen and press ENTER.

If the time entered is within the 3 to 99 seconds range, the message “SAVED OK” displays at the top of the screen. If the entry is not valid, Local Management does not alter the current setting, but it does refresh the Screen Refresh Time ﬁeld with the previous value.

5.7.8 Setting the Screen Lockout Time

The screen lockout time can be set from 1 to 30 minutes with a default of 15 minutes. To set a new lockout time, perform the following steps:

1. Use the arrow keys to highlight the Screen Lockout Time field.

2. Enter a number from 1 to 30.

3. Press ENTER to set the lockout time in the input field.

4. Use the arrow keys to highlight the SAVE command at the bottom of

the screen and press ENTER.

If the time entered is within the 1 to 30 minutes range, the message “SAVED OK” displays at the top of the screen. If the entry is not valid, Local Management does not alter the current setting, but it does refresh the Screen Lockout Time ﬁeld with the previous value.

5.7.9 Setting the Operational Mode

NOTE

To set the Operational Mode, proceed as follows:

1. Use the arrow keys to highlight the Operational Mode field.

2. Press the SPACE bar to step to the appropriate operation mode

3. Use the arrow keys to highlight the SAVE command, then press

5-26 2E48-27R/2E49-27R User’s Guide

If the device is to be conﬁgured to operate as a SecureFast switch, the device must be assigned a unique IP address that has been saved (i.e., the device has rebooted and the new IP address is active).

(802.1D SWITCHING, 802.1Q SWITCHING, or SECURE FAST VLAN).

ENTER. The warning screen shown in Figure 5-13 displays.

General Conﬁguration Screen

WARNING!

YOU HAVE ELECTED TO SAVE ONE OR MORE CONFIGURATION ITEMS THAT REQUIRE RESETTING THIS MODULE.

ARE YOU SURE YOU WANT TO CONTINUE?

YES

Figure 5-13 Conﬁguration Warning Screen

4. Use the arrow keys to highlight the YES command, then press

ENTER. The changes are saved and the device reboots.

NOTE

Upon saving the new operational mode, the module will reboot. If the 2E4X-27R is set to 802.1Q SWITCHING, refer to your

Port Based VLAN User’s Guide

to conﬁgure the devices for this

type of operation. If the 2E4X-27R is set to SECURE FAST VLAN, refer to your

SecureFast documentation set to conﬁgure the devices for this type of operation.

19601-84

2E48-27R/2E49-27R User’s Guide 5-27

Chapter 5: Local Management

5.7.10 Conﬁguring the COM Port

Upon power up, the COM port is conﬁgured to the default settings of ENABLED and LM.

Before altering the COM port settings, ensure that the 2E4X-27R is set with a valid IP address. (Refer to

CAUTION

The 2E4X-27R COM port supports the following applications:

• Local Management connections

• American Power Conversion (APC) Uninterruptible Power Supply

To conﬁgure the COM port, proceed as follows:

1. Use the arrow keys to highlight the Com field.

CAUTION

Section 5.7.1, Setting the IP Address.) Read this entire COM

port conﬁguration section before changing the settings of the COM port.

(UPS) connections

Do NOT disable or alter the settings of the COM port while operating the current Local Management connection through a

terminal. Altering the COM port settings disconnects the Local Management terminal from the port, and ends the Local Management session. If the 2E4X-27R was previously assigned a valid IP address, reenter Local Management by establishing a Telnet connection to the device. If the device does not have a valid IP address and the COM port has been disabled or the settings changed, reset NVRAM on the 2E4X-27R using Mode Switch 7 (refer to Appendix C) to reestablish COM port communications.

2. Press the SPACE bar to choose either ENABLED or DISABLED.

The COM port must be ENABLED for the LM or UPS application. Selecting DISABLED disallows the COM port connection to the terminal, providing additional device security.

If the COM port is reconﬁgured without a valid IP address set on the device, the message shown in Figure 5-14 displays.

CAUTION

5-28 2E48-27R/2E49-27R User’s Guide

Do not continue unless the outcome of the action is fully understood.

General Conﬁguration Screen

WARNING

THE COM PORT HAS BEEN RECONFIGURED AND THERE IS NO IP ADDRESS SET FOR THIS DEVICE. YOU WILL NO LONGER BE ABLE TO MANAGE THIS BOARD. DO YOU STILL WISH TO RECONFIGURE THIS COM PORT?

YES

Figure 5-14 COM Port Warning Screen

174252

3. Use the arrow keys to highlight YES. Press ENTER.

4. If the port was ENABLED, the message “SAVED OK” appears, and

the edits are saved. If the port was DISABLED, use the arrow keys to highlight SAVE at the bottom of the screen, then press ENTER.

NOTE

Exiting without saving causes the message “NOT SAVED -PRESS SA VE TO KEEP CHANGES” to appear. Exiting without saving causes all edits to be lost.

2E48-27R/2E49-27R User’s Guide 5-29

Chapter 5: Local Management

5.7.10.1 Changing the Com Port Application

After enabling the COM port as described in Section 5.7.10, one of the applications supported by the COM port (LM or UPS) can be selected. The default application is LM.

To change the COM port application:

1. Use the arrows keys to highlight the Application field.

2. Use the SPACE bar or BACKSPACE to step through the available

settings until the operation you require appears. Table 5-3 lists the available settings and their corresponding applications.

Table 5-3 COM Port Application Settings

Setting Application LM Local Management Session

UPS APC Power Supply SNMP Proxy

3. Press ENTER to accept the application.

4. Use the arrow keys to highlight the SAVE command at the bottom of

the screen, then press the ENTER key. The message “SAVED OK” displays, indicating that the edits are saved.

When the COM port is conﬁgured to perform the UPS application, all future Local Management connections must be

CAUTION

5-30 2E48-27R/2E49-27R User’s Guide

made by establishing a Telnet connection to the module. Ensure that the module has a valid IP address before saving changes to the COM port application. If the module does not have a valid IP address and the changes are saved, refer to

Appendix C for instructions on clearing NVRAM in order to

reestablish COM port communications.

General Conﬁguration Screen

5.7.11 Clearing NVRAM

Clearing NVRAM results in the loss of all user-entered parameters. Do not proceed unless the following procedure is

CAUTION

completely understood.

Clearing NVRAM allows the user to clear all user-entered parameters, such as the IP address and Community Names from NVRAM.

Clear NVRAM as follows:

1. Use the arrow keys to highlight the Clear NVRAM field.

2. Use the SPACE bar to toggle the field to YES.

3. Use the arrow keys to highlight SAVE at the bottom of the screen.

4. Press ENTER. The warning shown in Figure 5-15 displays.

WARNING

YOU HAVE ELECTED TO CLEAR NVRAM. THIS WILL CLEAR ALL SYSTEM DEFAULTS INCLUDING BUT NOT LIMITED TO IP ADDRESS, INTERFACE CONFIGURATION, AND COM PORT CONFIGURA TION, THEN RESET THE BOARD. ARE YOU SURE YOU WANT TO CLEAR NVRAM?

YES

Figure 5-15 Clear NVRAM Warning Screen

174251

5. Use the arrow keys to select YES and press ENTER. The message

“CLEARING NVRAM. REBOOT IN PROGRESS...” displays. The 2E4X-27R clears NVRAM and reboots. All user-entered parameters default to factory default settings.

2E48-27R/2E49-27R User’s Guide 5-31

Chapter 5: Local Management

5.7.12 Enabling/Disabling IP Fragmentation

To enable or disable IP Fragmentation, proceed as follows:

If the 2E4X-27R is being bridged to an FDDI ring (for example, via an optional HSIM-F6), IP Fragmentation should be enab led.

CAUTION

1. Use the arrow keys to highlight the IP Fragmentation field.

2. Press the SPACE bar to choose either ENABLED or DISABLED.

3. Use the arrow keys to highlight the SAVE command.

4. Press ENTER. The message “SAVED OK” displays at the top of the

If it is disabled, all FDDI frames that exceed the maximum Ethernet frame size are discarded.

screen.

5-32 2E48-27R/2E49-27R User’s Guide

SNMP Community Names Screen

5.8 SNMP COMMUNITY NAMES SCREEN

The SNMP Community Names screen allows the user to set SNMP Management community names. Community names act as passwords to Local/Remote Management and are agents of security access to the 2E4X-27R. Access to the 2E4X-27R is controlled by enacting any of three different levels of security authorization (read-only, read-write, and super-user).

NOTE

allows existing passwords to be changed, and all modiﬁable MIB objects for the Cabletron Container MIB and Internet MIB-II to be edited.

To access the SNMP Community Names screen from the Device Conﬁguration Menu screen, use the arrow keys to highlight the SNMP COMMUNITY NAMES menu item and press ENTER. The SNMP Community Names screen displays.

Super-user access gives the user full management privileges,

Event Message Line

Device Type: 2E48-27R

2E48-27R LOCAL MANAGEMENT

SNMP Community Names

Community Name

public

public public

Firmware Revision: XX.XX.XX BOOTPROM Revision: XX.XX.XX

Access Policy read-only read-write super-user

EXIT

RETURNSAVE

23141-16

Figure 5-16 SNMP Community Names Screen

2E48-27R/2E49-27R User’s Guide 5-33

Chapter 5: Local Management

The following explains each SNMP Community Names screen ﬁeld:

Community Name (Modiﬁable)

Displays the user-deﬁned name through which a user accesses the 2E4X-27R SNMP Management. An y community name assigned here acts as a password to Local/Remote Management.

Access Policy (Read-Only)

Indicates the access accorded each community name. The available access levels are as follows:

read-only This community name gives the user read-only

access to the 2E4X-27R MIB objects, and excludes access to security-protected ﬁelds of read-write or super-user authorization.

read-write This community name gives the user read-write

access to the 2E4X-27R MIB objects, excluding security protected ﬁelds for Super-User access only.

super-user This community name gi ves the user read-write

access to the 2E4X-27R

MIB objects and

allows the user to change all modiﬁable parameters including community names, IP addresses, traps, and SNMP objects.

5-34 2E48-27R/2E49-27R User’s Guide

SNMP Community Names Screen

5.8.1 Establishing Community Names

The password used to access Local Management at the Password Screen must have super-user access to view and edit the SNMP Community Names screen. Using a password with read-only or read-write access does not allow the user to view or edit the SNMP Community Names screen.

NOTE

Any community name assigned in the SNMP Community Names screen is a password to its corresponding level of access to Local/Remote Management. The community name assigned Super-User access is the only one that gives the user complete access to Local/Remote Management.

To establish community names, proceed as follows:

1. Use the arrow keys to highlight the Community Name field adjacent

to the selected access level.

2. Enter the password in the field (maximum 31 characters).

3. Press ENTER.

4. Repeat steps 1 through 3 to modify the other community names.

5. Use the arrow keys to highlight the SAVE command at the bottom of

the screen and press ENTER. The message “SAVED OK” displays. The community names are saved to memory and their access modes implemented.

NOTE

Exiting without saving causes a “NOT SAVED?” message to display abov e the SAVE command. Edits are lost if the y are not saved before exiting.

2E48-27R/2E49-27R User’s Guide 5-35

Chapter 5: Local Management

5.9 SNMP TRAPS SCREEN

Since the 2E4X-27R is an SNMP compliant device, it can send messages to multiple Network Management Stations to alert users of status changes. The SNMP Traps screen is shown in Figure 5-17.

To access the SNMP Traps screen from the Device Conﬁguration Menu screen, use the arrow keys to highlight the SNMP TRAPS menu item and press ENTER. The SNMP Traps screen displays.

Event Message Line

Device Type: 2E48-27R

Trap Destination

0.0.0.0

2E48-27R LOCAL MANAGEMENT

SNMP Traps

Firmware Revision: XX.XX.XX BOOTPROM Revision: XX.XX.XX

Trap Community Name

public public public public public public public public

EXIT

Enable Traps

[NO] [NO] [NO] [NO] [NO] [NO] [NO] [NO]

Figure 5-17 SNMP Traps Screen

The following explains each ﬁeld of the SNMP Traps screen.

RETURNSAVE

23141-17

Trap Destination (Modiﬁable)

Indicates the IP address of the workstation to receive trap alarms. Up to eight different destinations can be deﬁned.

Trap Community Name (Modiﬁable)

Displays the Community Name included in the trap message sent to the Network Management Station with the associated IP address.

5-36 2E48-27R/2E49-27R User’s Guide

SNMP T raps Screen

Enable Traps (Toggle)

Enables transmission of the traps to the network management station with the associated IP address. This ﬁeld toggles between YES and NO.

5.9.1 Conﬁguring the Trap Table

To conﬁgure the Trap table, proceed as follows:

1. Use the arrow keys to highlight the appropriate Trap Destination

field.

2. Enter the IP address of the workstation that is to receive traps. IP

address entries must follow the DDN format. For example: 134.141.79.121

3. Press ENTER. If an invalid entry is entered, the message “INVALID

IP ENTERED” displays in the Event Message Line.

4. Use the arrow keys to highlight the Trap Community Name field.

Enter the community name.

5. Press ENTER.

6. Use the arrow keys to highlight the Enable Traps field. Press the

SPACE bar to choose either YES (send alarms from the 2E4X-27R to the workstation), or NO (prevent alarms from being sent).

7. Use the arrow keys to highlight the SAVE command and press

ENTER. The message “SAVED OK” displays on the screen.

NOTE

Exiting without saving causes a “NOT SAVED?” message to appear above the SAVE command. Edits are lost if the y are not saved before exiting.

The designated workstations now receive traps from the 2E4X-27R.

2E48-27R/2E49-27R User’s Guide 5-37

Chapter 5: Local Management

5.10 SWITCH CONFIGURATION SCREEN

The Switch Conﬁguration screen, Figure 5-18, provides the basic setup options to make a switch operational in your network.

NOTE

operational mode of the device is set to SECURE FAST VLAN. This screen may only be used when the device is conﬁgured to operate as an 802.1D or 802.1Q switch.

T o access the Switch Conﬁguration screen from the De vice Conﬁguration Menu screen, use the arrow keys to highlight the SWITCH CONFIGURATION menu item and press ENTER. The Switch Conﬁguration screen displays showing ports 1 through 8. To view or edit the ﬁelds for other ports, highlight [9-16], [17-24], or [25-27] at the bottom of the screen and press the ENTER key.

The Switch Conﬁguration screen is not available if the

Event Message Line

Device Type: 2E48-27R

Switch Address: 00-00-1D-00-00-00 Number of Ports: 27

Port #

1 2 3 4 5 6 7 8

MAC Address

00-00-1D-00-00-00 00-00-1D-00-00-01 00-00-1D-00-00-02 00-00-1D-00-00-03 00-00-1D-00-00-04 00-00-1D-00-00-05 00-00-1D-00-00-06 00-00-1D-00-00-07

2E48-27R LOCAL MANAGEMENT

Switch Configuration

Firmware Revision: XX.XX.XX BOOTPROM Revision: XX.XX.XX

Type of STA: Age Time (sec): 300

State

learning listening standby learning listening standby listening listening

EXIT

[9-16]

[DEC]

Status

[ENABLED] [DISABLED] [ENABLED] [DISABLED] [ENABLED] [DISABLED] [ENABLED] [DISABLED]

RETURNSAVE

23141-18

Figure 5-18 Switch Conﬁguration Screen

5-38 2E48-27R/2E49-27R User’s Guide

Switch Conﬁguration Screen

The following describes each ﬁeld of the Switch Conﬁguration screen:

Switch Address (Read-Only)

Displays the base MAC address of the switch.

Number of Ports (Read-Only)

Displays the total number of switched ports on the 2E4X-27R. Depending on the optional interfaces, there can be 24 through 27.

Type of STA (Toggle)

Allows the user to set the method that switches use to decide which switch is the controlling (Root) switch when two or more switches exist in parallel (Spanning Tree Algorithm). Valid selection is IEEE, DEC, and None. To set the STA, refer to Section 5.10.1.

Age Time (Modiﬁable)

Allows the user to set the amount of time (in seconds) that the 2E4X-27R keeps an address in its switch table before discarding it. An address is automatically discarded when a valid frame is not received from that address within the time speciﬁed in the Age T ime ﬁeld. To change the Age Time ﬁeld from the default value of 300 seconds, refer to Section 5.10.2.

Port # (Read-Only)

Lists each switched port on the device. If the number of ports is greater than eight, then the additional ports are listed on subsequent screens.

MAC Address (Read-Only)

Displays the hardware address assigned to each listed port.

State (Read-Only)

There are ﬁve states that can display in this ﬁeld. These states are described as follows:

Disabled: Management disabled this interface. No trafﬁc is received or forwarded while the interface is disabled.

Listening: The switch is not adding information to the Transparent Database. The switch is monitoring the Bridge Protocol Data Unit (BPDU) trafﬁc while preparing to move from the learning to the forwarding state.

2E48-27R/2E49-27R User’s Guide 5-39

Chapter 5: Local Management

Learning: The switch is learning the addresses on this interface. The switch enters the learning state when the Transparent Database is created (during start-up or after being deleted), or when the Spanning Tree Algorithm detects a network topology change.

Forwarding: The switch is operating and this interface is forwarding trafﬁc.

Standby: This interface will not forward any trafﬁc through the switch because a loop condition has been detected by the STA.

Status (Toggle)

Allows the user to disable or enable a port by setting the status of the listed interface to either ENABLED or DISABLED. To set the port status, refer to Section 5.10.3.

5.10.1 Setting the STA

The Spanning Tree Algorithm (STA) setting allows the user to set the method that the switches use to decide which is the controller (Root) switch when two or more switches are in parallel. The av ailable selections are IEEE, DEC, and NONE.

To set the STA, proceed as follows:

1. Use the arrow keys to highlight the Type of STA field.

2. Use the SPACE bar to step to the appropriate setting of IEEE, DEC,

or NONE.

3. Use the arrow keys to highlight the SAVE command at the bottom of

the screen.

4. Press ENTER. The message “SAVED OK” displays.

5-40 2E48-27R/2E49-27R User’s Guide

Switch Conﬁguration Screen

5.10.2 Setting the Age Time Field

To set the Age Time, proceed as follows:

1. Use the arrow keys to highlight the Age Time field.

2. Type in the desired Age Time in increments of 10. The available Age

Time range is 10 to 1,000,000 seconds with the default value being 300 seconds.

3. Use the arrow keys to highlight the SAVE command at the bottom of

the screen.

4. Press ENTER. The message “SAVED OK” is displays.

5.10.3 Setting (Enabling or Disabling) the Port Status

To set the status of an interface (port), proceed as follows:

1. Use the arrow keys to highlight the Status field of the port.

2. Use the SPACE bar to toggle to either ENABLED or DISABLED.

3. Use the arrow keys to highlight the SAVE command at the bottom of

the screen.

4. Press ENTER. The message “SAVED OK” displays.

2E48-27R/2E49-27R User’s Guide 5-41

Chapter 5: Local Management

5.11 ETHERNET FULL DUPLEX CONFIGURATION SCREEN

The Ethernet Full Duplex Conﬁguration screen, Figure 5-19, allows the user to set ports 1 through 24, individually or all at once, to either Standard Ethernet or Full Duplex operation, and monitor each port to see whether or not it is enabled and linked to another 10BASE-F device. Refer to Section 5.15 to set the Operation Mode for ports 25 and 26.

To access the Ethernet Full Duplex Conﬁguration screen from the Device Conﬁguration Menu screen, use the arrow keys to highlight the ETHERNET FULL DUPLEX CONFIGURATION menu item and press ENTER. The Ethernet Full Duplex Conﬁguration screen displays.

Event Message Line

Device Type: 2E48-27R

PORT # 1 2 3 4 5 6 7 8 9 10 11 12

SAVE

OPERATION MODE

[STANDARD ENET] [STANDARD ENET] [STANDARD ENET] [STANDARD ENET] [STANDARD ENET] [STANDARD ENET] [STANDARD ENET] [STANDARD ENET] [STANDARD ENET] [STANDARD ENET] [STANDARD ENET] [STANDARD ENET]

SET ALL PORTS: [FULL]

2E48-27R LOCAL MANAGEMENT

Ethernet Full Duplex Configuration

LINK STATUS Link Link Link No Link Link Link Link Link Link Link Link Link

EXIT

Firmware Revision: XX.XX.XX BOOTPROM Revision: XX.XX.XX

PORT STATUS ENABLED ENABLED ENABLED ENABLED ENABLED ENABLED ENABLED ENABLED ENABLED ENABLED ENABLED ENABLED

RETURN

[13-24]

RETURN

23141-21

Figure 5-19 Ethernet Full Duplex Conﬁguration Screen

This section explains each ﬁeld of the Full Duplex Conﬁguration screen.

PORT # (Read-only)

Identiﬁes the number of the port.

5-42 2E48-27R/2E49-27R User’s Guide

Ethernet Full Duplex Conﬁguration Screen

OPERATION MODE (Toggle)

Allows the user to set the speciﬁed port to transmit and receive data separately (Standard) or simultaneously (Full Duplex). Set this ﬁeld to one of the following values:

• STANDARD ENET – The port is running at 10 Mbps (default) and

either transmits data or receives data, but not both at the same time. To set Ethernet ports for Standard operation, refer to Section 5.11.1.

• FULL DUPLEX – The port transmits and receives data

simultaneously at 10 Mbps, thus enabling the port to effectiv ely switch at 20 Mbps. To set Ethernet ports for Full Duplex operation, refer to

Section 5.11.1.

LINK STATUS (Read-only)

Indicates whether there is a physical connection from this port to another 10BASE-F device. One of the following values displays:

• Link – There is a 10BASE-F link signal present; there is a valid

physical connection from this port to another 10BASE-F device.

• No Link – No 10BASE-F link signal present; there is no valid physical

connection from this port to another 10BASE-F device.

PORT STATUS (Read-only)

Indicates whether the port was turned on or off administratively. One of the following values is displayed:

• ENABLED – The port is turned on administratively.

• DISABLED – The port is turned off administratively.

NOTE

SET ALL PORTS (Toggle)

Enabling or disabling ports from the Switch Conﬁguration screen is described in Section 5.10.3.

All ports (1 through 24) can be set at once to either STANDARD or FULL from this command ﬁeld. To set ports, refer to Section 5.11.1.

2E48-27R/2E49-27R User’s Guide 5-43

Chapter 5: Local Management

[1-12] or [13-24] (Navigation Key)

When the Full Duplex Conﬁguration screen displays, the current operation mode and status information are displayed for the ﬁrst 12 ports. This ﬁeld allows the user to step to the second screen for the same type of information for ports 13 through 24. While on the second screen, the user can navigate back to the ﬁrst screen by highlighting the [1-12]

ﬁeld and

pressing ENTER. The user can change the Operation Mode ﬁelds while in either the ﬁrst or second screen.

5.11.1 Setting the Operation Mode

The Operation Mode may be set to Standard Ethernet or Full Duplex either one port at a time or all at once. The following steps describe setting the port Operation Mode for individual ports followed by steps to set the Operation Mode for all ports.

To set the Operation Mode for individual ports, proceed as follows:

1. Use the arrow keys to highlight the OPERATION MODE field

adjacent to the number of the port(s) that you plan to change.

NOTE

The Operation Mode for the ﬁrst 12 ports can be changed on the ﬁrst screen. To display the Operation Mode for Ports 13 through 24, use the arrow keys to highlight the Ports [13-24] ﬁeld and press ENTER. To again display the Operation Mode for P orts 1 through 12, use the arrow keys to highlight the Ports [1-12] ﬁeld and press ENTER.

2. Press the SPACE bar until the appropriate mode, FULL DUPLEX or

STANDARD ENET displays in the field.

3. Use the arrow keys to highlight the SAVE command.

4. Press ENTER. The message “SAVED OK” displays.

To set all Ethernet ports (1 through 24) for Full Duplex or Standard Ethernet operation, proceed as follows:

1. Use the arrow keys to highlight the SET ALL PORTS field.

2. Press the SPACE bar until you see FULL or STANDARD.

3. Use the arrow keys to highlight the SAVE command.

4. Press ENTER. The message “SAVED OK” displays.

5-44 2E48-27R/2E49-27R User’s Guide

Device Speciﬁc Conﬁguration Menu Screen

5.12 DEVICE SPECIFIC CONFIGURATION MENU SCREEN

The Device Speciﬁc Conﬁguration Menu screen, Figure 5-20, allows the user to select one of ﬁve screens to conﬁgure ports or check system resources speciﬁc to the 2E4X-27R.

NOTE

Speciﬁc Conﬁguration Menu screen may not display if the operational mode of the device is set to SECURE FAST VLAN:

Refer to the Release Notes to see if the functionality provided above screens is supported. Section 5.7.9 describes how to the set the operational mode.

To access the Device Speciﬁc Conﬁguration Menu screen from the Device Conﬁguration Menu screen, use the arrow keys to highlight the DEVICE SPECIFIC CONFIGURATION menu item and press ENTER. The Device Speciﬁc Conﬁguration Menu screen displays.

2E48-27R LOCAL MANAGEMENT

Device Specific Configuration Menu

The PORT REDIRECT FUNCTION menu item on the Device

Device Type: 2E48-27R

SYSTEM RESOURCES HIGH SPEED INTERFACE CONFIGURATION FLASH DOWNLOAD PORT REDIRECT FUNCTION BROADCAST SUPPRESSION

Firmware Revision: XX.XX.XX BOOTPROM Revision: XX.XX.XX

EXIT

RETURN

23144-20

Figure 5-20 Device Speciﬁc Conﬁguration Menu Screen

2E48-27R/2E49-27R User’s Guide 5-45

Chapter 5: Local Management

The following brieﬂy deﬁnes each selectable item of the Device Speciﬁc Conﬁguration Menu screen:

SYSTEM RESOURCES

The System Resources screen displays the amount of FLASH memory, DRAM and NVRAM installed, indicates the amount of available memory and provides information on 2E4X-27R operation. For details, refer to

Section 5.13.

HIGH SPEED INTERFACE CONFIGURATION

The High Speed Interface Conﬁguration screen provides access to the Fast Ethernet Interfaces screen and the HSIM Setup screen. For details, refer to Section 5.14.

FLASH DOWNLOAD

The FLASH Download screen allows the user to force the 2E4X-27R to download a new image ﬁle from a TFTP server to its FLASH memory. For details, refer to Section 5.16.

PORT REDIRECT FUNCTION

The Port Redirect Function screen allows the user to redirect trafﬁc from one or multiple switch ports to a speciﬁc destination switch port. For details, refer to Section 5.17.

BROADCAST SUPPRESSION

The Broadcast Suppression screen allows the user to set a desired limit of received broadcast frames that are forwarded per port per second. For details, refer to Section 5.18.

802.1Q VLAN Conﬁguration

This menu item will only display if the 2E4X-27R has been conﬁgured to operate as an IEEE 802.1Q switch as described in Section 5.11.1, Setting the Operation Mode. When selected, this menu item opens the VLAN Main Menu screen. For details about the VLAN Local Management screens and how to use them to conﬁgure VLANs in the 2E4X-27R, refer to the Cabletron Systems Port Based VLAN User’s Guide.

5-46 2E48-27R/2E49-27R User’s Guide

System Resources Screen

5.13 SYSTEM RESOURCES SCREEN

The System Resources screen, Figure 5-21, provides information concerning the processor used in the 2E4X-27R and the amount of FLASH memory , DRAM, and NVRAM that is installed and how much of that memory is available. This screen also allows the user to monitor the current processor (switch) utilization and the peak switch utilization.

To access the System Resources screen from the Device Speciﬁc Conﬁguration Menu screen, use the arrow keys to highlight the SYSTEM RESOURCES menu item and press ENTER. The System Resources screen displays.

Event Message Line

Device Type: 2E48-27R

Flash Memory Installed: 4 MB

DRAM Installed: 16 MB

NVRAM Installed: XX KB

SAVE

2E48-27R LOCAL MANAGEMENT

System Resources

CPU Type: i960 HT 25 Mhz

Available: XXXXX Bytes

Current Switch Utilization: 66% Peak Switch Utilization: 75%

Reset Peak Switch Utilization: [NO]

EXIT

Firmware Revision: XX.XX.XX BOOTPROM Revision: XX.XX.XX

RETURN

23142-2

Figure 5-21 System Resources Screen

The following brieﬂy deﬁnes each ﬁeld of the System Resources screen.

CPU Type (Read-only)

Indicates the microprocessor used in the 2E4X-27R.

2E48-27R/2E49-27R User’s Guide 5-47

Chapter 5: Local Management

Flash Memory Installed (Read-only)

Indicates the amount of FLASH memory installed in the 2E4X-27R and how much is currently available.

DRAM Installed (Read-only)

Indicates the amount of DRAM installed in the 2E4X-27R and how much of it is currently available.

NVRAM Installed (Read-only)

Indicates the amount of NVRAM installed in the 2E4X-27R and how much of it is currently available.

Current Switch Utilization (Read-only)

Shows the percentage of the device switching capacity currently being used.

Peak Switch Utilization (Read-only)

Shows the peak percentage of device switching capacity used, since the last reset.

Reset Peak Switch Utilization (Toggle)

Allows the user to reset the Peak Switch Utilization ﬁeld. The switch may be set to either YES or NO as described in Section 5.13.1. YES resets the Peak Switch Utilization ﬁeld to the current system trafﬁc.

5.13.1 Setting the Reset Peak Switch Utilization

To set the Reset Peak Switch Utilization ﬁeld to YES or NO, proceed as follows:

1. Use the arrow keys to highlight the Reset Peak Switch Utilization

field.

2. Press the SPACE bar to select YES or NO.

3. Use the arrow keys to highlight the SAVE command at the bottom of

the screen.

4. Press ENTER. The message “SAVED OK” displays.

5-48 2E48-27R/2E49-27R User’s Guide

High Speed Interface Conﬁguration Menu Screen

5.14 HIGH SPEED INTERFACE CONFIGURATION MENU SCREEN

The High Speed Interface Conﬁguration Menu screen, Figure 5-22, applies to the Fast Ethernet Interface Modules and the High Speed Interface Module.

NOTE

Interface Modules and a High Speed Interface Module (HSIM) are installed.

If only Fast Ethernet Interface Modules or an HSIM is installed, than the respective Fast Ethernet Interfaces screen or the HSIM Setup screen displays instead of the High Speed Interface Conﬁguration Menu screen.

To access the High Speed Interface Conﬁguration Menu screen from the Device Speciﬁc Conﬁguration Menu screen, use the arrow keys to highlight the HIGH SPEED INTERFACE CONFIGURATION menu item and press ENTER. The High Speed Interface Conﬁguration Menu screen displays.

2E48-27R LOCAL MANAGEMENT

High Speed Interface Configuration Menu

This screen does not display unless one or two Fast Ethernet

Device Type: 2E48-27R

FAST ETHERNET INTERFACES HSIM

Firmware Revision: XX.XX.XX BOOTPROM Revision: XX.XX.XX

EXIT

Figure 5-22 High Speed Interface Conﬁguration Menu Screen

RETURN

23143-53

2E48-27R/2E49-27R User’s Guide 5-49

Chapter 5: Local Management

The following brieﬂy explains each screen accessible from the High Speed Interface Conﬁguration Menu screen.

FAST ETHERNET INTERFACES

Displays a screen named High Speed Interface Conﬁguration. This screen shows the types of Fast Ethernet Interface Modules installed in ports 25 and 26, their current operating mode, and indicates if the ports are linked. This screen also allows the user to enable or disable Auto-Negotiation and set the Advertised Ability. For details, refer to Section 5.15.

HSIM

Displays the types of interfaces installed in the High Speed Interface Module (HSIM) slots. The HSIM screens are described in their respective user’s guides.

5.15 HIGH SPEED INTERFACE CONFIGURATION SCREEN

NOTE

applies only to ports 25 and 26. This screen supports the FE-100TX, FE-100FX, and FE-100F3 Fast Ethernet Interface Modules that operate at 100 Mbps.

The High Speed Interface Conﬁguration screen displays the types of interfaces installed in ports 25 and 26, their current operating mode, and indicates if the ports are linked. This screen also allows the user to enable or disable Auto-Negotiation and set the Advertised Ability.

To access the High Speed Interface Conﬁguration screen from the High Speed Interface Conﬁguration Menu screen, use the arrow keys to highlight the FAST ETHERNET INTERFACES menu item and press ENTER. The High Speed Interface Conﬁguration screen displays.

The High Speed Interface Conﬁguration screen, Figure 5-23,

5-50 2E48-27R/2E49-27R User’s Guide

High Speed Interface Conﬁguration Screen

Event Message Line

Device Type: 2E48-27R

Port Type Link Status Current Oper. Mode Desired Oper. Mode Advertised Ability

SAVE

2E48-27R LOCAL MANAGEMENT

High Speed Interface Configuration

Firmware Revision: XX.XX.XX BOOTPROM Revision: XX.XX.XX

Port 25 FE-100TX Link 100Base-TXFD

[Auto-Negotiation] [100Base-TXFD] [Disabled]

EXIT

Port 26 Unknown N/A [N/A] [N/A] [N/A]

RETURN

Figure 5-23 High Speed Interface Conﬁguration Screen

The following brieﬂy deﬁnes each ﬁeld of the High Speed Interface Conﬁguration screen.

23141-24

Port Type (Read-only)

Displays the type of interface (FE-100FX, FE-100TX, FE-100F3, or Unknown) installed in ports 25 and 26. Figure 5-23 shows that there is an FE-100TX interface installed in port 25 and no interface (indicated by Unknown) in port 26.

Link Status (Read-only)

Indicates whether or not there is a physical connection from this port to another 10BASE-T or 100BASE-TX/FX device. One of the following values displays:

• Link – There is a link signal present and a valid physical connection to

another device.

• No Link – There is no link signal present and no valid physical

connection to another device.

2E48-27R/2E49-27R User’s Guide 5-51

Chapter 5: Local Management

Current Oper. Mode (Read-only)

This ﬁeld displays the current operating mode of ports 25 and 26. Depending on whether a 100BASE-FX or 100BASE-TX Fast Ethernet Interface Module is installed, this ﬁeld displays the following:

• With a 100BASE-FX interface: 100Base-FX, 100Base-FXFD (full

duplex), or N/A when the port slot is empty.

• With a 100BASE-TX interface: Unknown, 10Base-T, 10Base-TFD

(full duplex), 100Base-TX, 100Base-TXFD (full duplex), or N/A when the port slot is empty.

Desired Oper. Mode (Selectable)

This ﬁeld allows the user to select the desired operational mode for an interface in port 25 or 26. The ﬁeld toggles between 100Base-FX and 100Base-FXFD (full duplex) when an FE-100FX or FE-100F3 is installed. Section 5.15.1 describes how to conﬁgure a port with an FE-100FX or FE-100F3.

NOTE

In normal operation, the port with an FE-100TX installed automatically establishes a link with the device at the other end of the segment without requiring user setup. However, Local Management provides the user with the option of manually conﬁguring that port.

If an FE-100TX is installed, the ﬁeld steps to Auto-Negotiation, 10Base-T, 10Base-TFD (full duplex), 100Base-TX, and 100Base-TXFD (full duplex). In normal operation, the port with an FE-100TX installed is capable of auto-negotiating the operational mode and no further user setup is required. Section 5.15.2 describes how to manually conﬁgure an FE-100TX.

In Auto-Negotiation, the FE-100TX negotiates to the highest common denominator of the two interfaces. The order of priority of negotiation is 100Base-TXFD, 100Base-TX, 10Base-TFD, and 10Base-T.

5-52 2E48-27R/2E49-27R User’s Guide

High Speed Interface Conﬁguration Screen

Advertised Ability (Selectable)

During auto-negotiation, the FE-100TX informs the device at the other end of the segment about its capabilities. The capabilities of a port (25 or

26) with an FE-100TX installed are 10BASE-T, 10BASE-TFD (full duplex mode), 100BASE-TX and 100BASE-TXFD (full duplex mode). In normal operation, with all capabilities enabled, the FE-100TX “advertises” that it has the ability to operate in any mode. The Network Manager may choose to set up the port so that only a portion of the available capabilities are advertised and the others are disabled. For example, only 100BASE-TX and 100BASE-TXFD might be enabled so that only devices that operate at 100 Mbps can communicate with that port. Section 5.15.2.2 describes how to enable or disable advertised modes.

5.15.1 Conﬁguring an FE-100FX or FE-100F3

When an FE-100FX or FE-100F3 is installed in port 25 or 26, it must be manually set to operate in the same technology as the device at the other end of the connected segment. Section 5.15.1.1 provides instructions for manually conﬁguring the port with an FE-100FX or FE-100F3 interface.

5.15.1.1 Setting the FE-100FX or FE-100F3 Operational Mode

Use the Desired Oper. Mode ﬁeld to set the active technology. This ﬁeld toggles between 100Base-FX and 100Base-FXFD (full duplex). To set the active technology through Local Management, proceed as follows:

1. Use the arrow keys to highlight the Desired Oper. Mode field.

2. Use the SPACE bar to select 100Base-FX or 100Base-FXFD (full

duplex).

3. Press ENTER. The port now operates in the chosen mode.

4. Use the arrow keys to highlight the SAVE command. Press ENTER.

The message “SAVED OK” displays and Local Management saves the changes to memory.

2E48-27R/2E49-27R User’s Guide 5-53

Chapter 5: Local Management

5.15.2 Conﬁguring an FE-100TX

In normal operation, a port (25 or 26) with an FE-100TX interface automatically establishes a link with the device at the other end of the segment and no user setup is required. Section 5.15.2.1 and

Section 5.15.2.2 provide instructions for manually conﬁguring the port

with an FE-100TX installed.

5.15.2.1 Setting the FE-100TX Operational Mode

Use the Desired Oper. Mode ﬁeld to set the active technology. This ﬁeld steps between Auto-Negotiation, 10Base-T, 10Base-TFD (full duplex), 100Base-TX, and 100Base-TXFD (full duplex). If Auto-Negotiation is selected, the FE-100TX automatically sets the active technology. To manually set the active technology through Local Management, proceed as follows:

1. Use the arrow keys to highlight the Desired Oper. Mode field.

2. Use the SPACE bar to select the desired mode. Press ENTER. If any

mode other than Auto-Negotiation is selected, the port only operates in the chosen mode and Auto-Negotiation is disabled.

3. Use the arrow keys to highlight the SAVE command. Press ENTER.

The message “SAVED OK” displays and Local Management saves the changes to memory. The selected mode is displayed in both the Desired Operational Mode field and the Current Operational Mode field.

5.15.2.2 Setting the FE-100TX Advertised Ability

In normal operation, a port (25 or 26) with an FE-100TX auto-negotiates to the highest speed possible. Under some circumstances, the Network Administrator may want the port to advertise only some of the available modes. The Advertised Ability ﬁeld provides the capability to set those modes. This ﬁeld steps to 10Base-T, 10Base-TFD (full duplex), 100Base-TX, and 100Base-TXFD (full duplex). To set the advertised ability, proceed as follows:

1. Use the arrow keys to highlight the Advertised Ability field.

2. Use the SPACE bar to select the desired mode.

5-54 2E48-27R/2E49-27R User’s Guide

Cabletron Systems 2E49-27R, 2E48-27R User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

NOTICE

CONTENTS

INTRODUCTION

1.1 USING THIS GUIDE

1.2 STRUCTURE OF THIS GUIDE

1.3 2E4X-27R OVERVIEW

1.3.1 Connectivity

1.3.2 Full Duplex Switched Ethernet

1.3.3 SmartTrunk

1.3.4 Runtime IP Address Discovery

1.3.5 Management

1.3.6 Switching Options

1.3.7 Standards Compatibility

1.3.8 Year 2000 Compliant

1.3.9 LANVIEW Diagnostic LEDs

1.3.10 Optional Features

1.4 DOCUMENT CONVENTIONS

1.5 GETTING HELP

1.6 RELATED MANUALS

NETWORK REQUIREMENTS

2.1 SmartTrunk

2.2 10BASE-F NETWORK

2.3 FOIRL FIBER OPTIC NETWORK

2.4 100BASE-TX NETWORK

2.5 100BASE-FX FIBER OPTIC NETWORK

INSTALLATION

3.1 UNPACKING THE 2E4X-27R

3.2 INSTALLING OPTIONS

3.3 INSTALLING THE DEVICE

3.3.1 Tabletop or Shelf Installation

3.3.2 Rackmount Installation

3.3.3 Connecting Power to the 2E4X-27R

3.4 CONNECTING TO THE NETWORK

3.4.2 Connecting a UTP Segment to the FE-100TX

3.4.3 Connecting a Fiber Optic Segment to the FE-100FX and FE-100F3

3.5 COMPLETING THE INSTALLATION

TROUBLESHOOTING

4.1 USING LANVIEW

4.2 FE-100TX LED

4.3 TROUBLESHOOTING CHECKLIST

4.4 USING THE RESET BUTTON

LOCAL MANAGEMENT

5.1 OVERVIEW

5.2 LOCAL MANAGEMENT KEYBOARD CONVENTIONS

5.3 MANA GEMENT TERMINAL SETUP

5.3.1 Console Cable Connection

5.3.2 Management Terminal Setup Parameters

5.3.3 Telnet Connections

5.3.4 Monitoring an Uninterruptible Power Supply

5.4 ACCESSING LOCAL MANAGEMENT

5.4.1 Navigating Local Management Screens

5.4.2 Selecting Local Management Menu Screen Items

5.4.3 Exiting Local Management Screens

5.5 DEVICE MENU SCREEN

5.6 DEVICE CONFIGURATION MENU SCREEN

5.7 GENERAL CONFIGURATION SCREEN

5.7.1 Setting the IP Address

5.7.2 Setting the Subnet Mask

5.7.3 Setting the Default Gateway

5.7.4 Setting the TFTP Gateway IP Address

5.7.5 Setting the Device Date

5.7.6 Setting the Device Time

5.7.7 Entering a New Screen Refresh Time

5.7.8 Setting the Screen Lockout Time

5.7.9 Setting the Operational Mode

5.7.10.1 Changing the Com Port Application

5.7.11 Clearing NVRAM

5.7.12 Enabling/Disabling IP Fragmentation

5.8 SNMP COMMUNITY NAMES SCREEN

5.8.1 Establishing Community Names

5.9 SNMP TRAPS SCREEN

5.10 SWITCH CONFIGURATION SCREEN

5.10.1 Setting the STA

5.10.2 Setting the Age Time Field

5.10.3 Setting (Enabling or Disabling) the Port Status

5.11 ETHERNET FULL DUPLEX CONFIGURATION SCREEN