Cabletron Systems SFCS-200BX, SFCS-1000, SFCS-200WG User Manual

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MMAC-Plus

™

9A000, SFCS-200BX,

SFCS-200WG and SFCS-1000

ATM SWITCH

User’s Guide

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.

Cabletron Systems, Inc. 35 Industrial Way Rochester, NH 03867-0505

Order Number: 9031473-03

LANVIEW is a registered trademark of Cabletron Systems, Inc. MMAC-Plus is a trademark of Cabletron Systems, Inc. CompuServe is a registered trademark of CompuServe, Inc.

Notice

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

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

VCCI Notice

This equipment is in the 1st Class Category (information equipment to be used in commercial and/or industrial areas) and conforms to the standards set by the Voluntary Control Council for Interference by Information Technology Equipment (VCCI) aimed at preventing radio interference in commercial and/or industrial areas.

Consequently, when used in a residential area or in an adjacent area thereto, radio interference may be caused to radios and TV receivers, etc.

Read the instructions for correct handling.

Preface

Technical Support.......................................................................................................vii

Typographical Styles..................................................................................................vii

Important Information Indicators ..........................................................................viii

Laser Warning............................................................................................................... x

Safety Agency Compliance........................................................................................ xi

Safety Precautions................................................................................................ xi

Symbols ................................................................................................................. xi

Modiﬁcations to Equipment.............................................................................. xii

Placement of a Cabletron Systems Product ....................................................xii

Power Cord Connection.....................................................................................xii

Chapter 1 Introduction

Table of Contents

1.1 Overview of the ATM Standard........................................................................ 1-1

1.2 Hardware Description......................................................................................... 1-2

1.2.1 Front Panel Description ...........................................................................1-4

1.2.2 9A000 and SFCS Series Hardware Conﬁguration................................ 1-4

1.2.3 9A000 and SFCS Series Switch Board .................................................... 1-4

1.2.4 Switch Control Processor......................................................................... 1-5

1.2.5 9A000 and SFCS Series Network Modules ...........................................1-5

1.2.6 Environmental Information..................................................................... 1-5

1.2.7 Standards Compliance .............................................................................1-7

1.2.8 Safety Compliance .................................................................................... 1-7

1.2.9 Emissions Compliance .............................................................................1-7

1.2.10 Electromagnetic Compatibility (EMC) ................................................1-7

1.3 Software Description ........................................................................................... 1-7

1.3.1 Switch Control Software.......................................................................... 1-7

Chapter 2 Installing the 9A000

2.1 Installing the 9A000 ............................................................................................. 2-1

2.2 The Reset Switch ..................................................................................................2-3

Chapter 3 Switch Hardware

3.2 Switch Hardware Components.......................................................................... 3-5

3.2.1 Switch Board.............................................................................................. 3-5

3.2.2 Switch Control Processor......................................................................... 3-5

3.2.2.1 i960 Switch Control Processor .......................................................3-6

3.2.3 Network Modules..................................................................................... 3-9

3.2.3.1 Port Numbering............................................................................... 3-9

3.2.4 Power Supply Modules.......................................................................... 3-11

3.2.4.1 SFCS-200BX AC Power Supply ................................................... 3-11

iii

Contents

3.2.4.2 SFCS-1000 AC Power Supply (Model A).................................... 3-12

3.2.4.3 SFCS-1000 AC Power Supply (Model B).................................... 3-15

3.2.5 SFCS-1000 Fan Tray ................................................................................ 3-18

3.2.6 SFCS-1000 Temperature Sensing........................................................... 3-18

3.2.7 SFCS-1000 Common Equipment Card (CEC)..................................... 3-19

3.2.7.1 CEC Front Panel............................................................................. 3-19

3.2.7.2 Alarm Relay Contacts....................................................................3-19

3.2.7.3 CEC Status LEDs............................................................................ 3-21

3.2.7.4 Ethernet Port................................................................................... 3-22

Chapter 4 Switch Setup

4.2 Unpacking .............................................................................................................4-1

4.2.1 Inventorying the Unit................................................................................4-2

4.3 Electrical Considerations.....................................................................................4-3

4.4 Rack-Mounting an SFCS-200BX......................................................................... 4-4

4.4.1 Required Tools............................................................................................ 4-4

4.4.2 Installing the Rack-mount Brackets.........................................................4-5

4.5 Rack-Mounting an SFCS-200WG....................................................................... 4-7

4.5.1 Required Tools............................................................................................ 4-7

4.5.2 Installing the Rack-mount Brackets.........................................................4-8

4.6 Rack-Mounting an SFCS-1000.......................................................................... 4-10

4.6.1 Installing the SFCS-1000.......................................................................... 4-11

4.7 Installing the Serial Cable .................................................................................4-12

4.8 Modem Conﬁguration.......................................................................................4-13

4.8.1 Modem Parameters.................................................................................. 4-13

4.9 Conﬁguring IP Addresses................................................................................. 4-14

4.10 AMI Security..................................................................................................... 4-15

4.11 Subsequent Operation .....................................................................................4-15

4.12 Verifying the Installation................................................................................. 4-16

4.13 Product Registration Information..................................................................4-16

Chapter 5 Hardware Maintenance Procedures

5.1.1 Overview.....................................................................................................5-1

5.1.2 Multicast Mode...........................................................................................5-2

5.1.3 Hot-swapping Network Modules ...........................................................5-3

5.2 Power Supply Module Replacement................................................................. 5-4

5.2.1 SFCS-200BX Power Supply Module Replacement................................5-4

5.2.1.1 Replacing an SFCS-200BX AC Power Supply..............................5-4

5.2.2 SFCS-1000 Power Supply Module Replacement................................... 5-6

5.2.2.1 Replacing an SFCS-1000 AC Power Supply (Model A).............. 5-6

5.2.2.2 Replacing an SFCS-1000 AC Power Supply (Model B).............. 5-9

5.3 SFCS-1000 Fan Tray Replacement.................................................................... 5-12

5.4 Switch Control Processor Replacement ..........................................................5-13

5.5 Switch Board Replacement ...............................................................................5-15

Chapter 6 Software Upgrade Instructions

6.1 Obtaining the Software Upgrade File via Diskette ......................................... 6-2

6.2 Performing the Software Upgrade ....................................................................6-4

6.3 Changing between Multiple Versions of Software.......................................... 6-7

6.4 Using bootp to Download Software to the Switch.......................................... 6-9

6.4.1 Overview..................................................................................................... 6-9

6.4.2 Setting Up Your bootp Server .................................................................. 6-9

6.4.3 Adding an Entry for Your Switch in the bootptab File....................... 6-10

6.4.4 Setting Up a tftpboot Server................................................................... 6-12

Appendix A Troubleshooting

A.1.1 Run Looptest ............................................................................................A-3

A.1.2 Check Self-Test (Automatically Performed) ........................................ A-4

A.1.3 Firmware Download (Automatically Performed) ..............................A-4

A.1.4 Hardware Detected by Driver ...............................................................A-5

A.1.5 Check Firmware.......................................................................................A-6

A.1.6 Check Physical Link ................................................................................A-7

A.2 Testing Network Connectivity Using PVCs................................................... A-8

A.2.1 Verifying the Outgoing ATM ARP Entry............................................A-11

A.2.2 atmstat..................................................................................................... A-12

A.2.2.1 No Cells Received by Remote End ...........................................A-13

A.2.2.2 Cells and VPI/VCI Errors Received by Remote .....................A-13

A.2.2.3 Cells and AAL* Errors Received by Remote ...........................A-13

A.2.2.4 Cells and No Errors Received by Remote and Transmitting No

Cells ........................................................................................................A-14

A.2.2.5 Cells and No Errors Received by Remote and Transmitting Cells

A-14

A.3 Collecting Additional Information................................................................ A-15

A.3.1 Basic Information...................................................................................A-15

A.3.2 Adapter Information .............................................................................A-15

A.3.3 Switch Information................................................................................ A-18

Contents

Appendix B SCP Diagnostics

B.1.1 Accessing the Monitor Mode...................................................................B-2

B.1.2 Running the Hardware Tests ...................................................................B-4

B.1.2.1 Clock Test .........................................................................................B-4

B.1.2.2 DRAM Test .......................................................................................B-4

B.1.2.3 DRAM Chip Test .............................................................................B-5

B.1.2.4 Ethernet Test.....................................................................................B-5

B.1.2.5 FLASH Test ......................................................................................B-5

B.1.2.6 FLASH Chip Test.............................................................................B-6

B.1.2.7 Serial Port Test .................................................................................B-7

B.1.2.8 SRAM Test ........................................................................................B-7

B.1.2.9 Timer Test .........................................................................................B-7

B.1.2.10 Hardware Test................................................................................B-7

B.1.2.11 Complete Hardware Test..............................................................B-8

Contents

Appendix C Hardware Speciﬁcations

C.1.1 SFCS-200WG............................................................................................ C-2

C.1.2 SFCS-200BX.............................................................................................. C-3

C.1.3 SFCS-1000..................................................................................................C-4

C.2 ATM Network Modules.................................................................................... C-5

C.2.1 100 Mbps TAXI Module ..........................................................................C-5

C.2.2 155 Mbps OC-3c/STM-1 MM Module.................................................. C-6

C.2.3 155 Mbps STS-3c/STM-1 UTP Module................................................. C-7

C.2.3.1 155 Mbps UTP Pinout Speciﬁcations ..........................................C-8

C.2.3.2 Connecting Switches with 155 Mbps UTP Network Modules C-8

C.2.4 622 Mbps OC-12c/STM-4c MM Module ..............................................C-9

C.2.5 25 Mbps TP25 Module........................................................................... C-10

C.2.5.1 Connecting Switches with TP25 Network Modules............... C-11

C.2.5.2 Connecting Switches with Token Ring Pinouts to Cabletron

Switches ................................................................................................. C-11

C.2.5.3 Connecting Adapters with Token Ring Pinouts to Cabletron

Switches ................................................................................................. C-12

C.2.6 34 Mbps E3 Module ............................................................................... C-13

C.2.7 45 Mbps DS3 Module ............................................................................ C-14

C.2.8 155 Mbps OC-3c/STM-1 SM Module.................................................. C-15

C.2.9 155 Mbps OC-3c/STM-1 3MM/1SM Module.................................... C-16

C.2.10 622 Mbps OC-12c/STM-4c SM Module............................................ C-18

C.3 ATM Adapters.................................................................................................. C-19

C.3.1 Adapter Cabling Speciﬁcations............................................................ C-19

C.3.1.1 Fiber-Optic Cable Speciﬁcations................................................ C-19

C.3.1.2 UTP Cable Speciﬁcations ............................................................C-20

C.3.1.3 UTP Pinouts.................................................................................. C-20

C.3.2 ESA-200PC Technical Speciﬁcations.................................................... C-21

C.3.3 PCA-200PC Technical Speciﬁcations ................................................... C-22

C.3.4 PCA-200MAC Technical Speciﬁcations .............................................. C-23

C.3.5 NBA-200 Technical Speciﬁcations........................................................ C-24

C.3.6 GIA-200 Technical Speciﬁcations .........................................................C-25

C.3.7 HPA-200 Technical Speciﬁcations........................................................ C-26

C.3.8 MCA-200 Technical Speciﬁcations....................................................... C-27

C.3.9 SBA-200 Technical Speciﬁcations .........................................................C-28

C.3.10 ESA-200 Technical Speciﬁcations .......................................................C-29

C.3.11 VMA-200 Technical Speciﬁcations..................................................... C-30

PREFACE

This manual provides technical information needed to install and operate the

Cabletron

vides information for the 9A000 and SFCS-200BX switches and the userinstallable network modules offering both LAN and WAN interfaces. This document also provides safety instructions, general product information, network conﬁguration information and information on software administration capabilities.

9A000 and SecureFast Cell Switch-200BX ATM Switches. It pro-

Technical Support

In the U.S.A., you can contact Cabletron Systems’ Technical Support by any

By phone: Monday through Friday between 8 A.M. and

By CompuServe By Internet mail: support@ctron.com By mail: Cabletron Systems, Inc.

By FAX: (603) 335-4743 Technical support for non-U.S.A. customers should be handled through your

local distributor. No matter which method is used for technical support, please be prepared to

provide your support contract ID number, the serial number(s) of the product(s), and as much information as possible describing your problem/question.

one of four methods:

8 P.M. Eastern Standard Time at (603) 3329400

: GO CTRON from any ! prompt

P.O. Box 5005 Rochester, NH 03867-0505

Typographical Styles

Throughout this manual, all speciﬁc commands meant to be entered by the user will appear on a separate line in bold tion, use of the lowing example demonstrates this convention.

Enter

Return

Avant Garde typeface. In addi-

key will be represented as

<ENTER>

. The fol-

vii

PREFACE

Important Information Indicators

cd /usr <ENTER>

Commands or ﬁle names that appear within the text of this manual will be represented in the following style: “...the distribution”.

As in the following example, any messages that appear on your screen during software installation and network interface administration will appear in

Courier font to distinguish them from the rest of the text.

....

Are all four conditions true?

To call your attention to safety and otherwise important information that must be reviewed to insure correct and complete installation, as well as to avoid damage to the ForeRunner Switch or your system, Cabletron Systems utilizes the following WARNING/CAUTION/NOTE indicators.

WARNING statements contain information that is critical to the safety of the

operator and/or the system. Do not proceed beyond a WARNING statement until the indicated conditions are fully understood or met. This information could prevent serious injury to the operator, damage to the ForeRunner Switch, the system, or currently loaded software, and will be indicated as follows:

fore_install

program will install this

viii

WARNING!

Information contained in CAUTION statements is important for proper installation/operation. CAUTION statements can prevent possible equipment damage and/or loss of data and will be indicated as:

CAUTION

Hazardous voltages are present. If the instructions are not heeded, there is a risk of electrical shock and danger to personal health.

You risk damaging your equipment and/or software if you do not follow these instructions.

PREFACE

Information contained in NOTE statements has been found important enough to be called to the special attention of the operator and will be set off from the text as follows:

NOTE:

Cabletron Systems strongly recommends that you disconnect the serial cable once you have conﬁgured the ATM switch and then access the switch over the ATM network.

PREFACE

Laser Warning

Class 1 Laser Product: This product conforms to

applicable requirements of 21 CFR 1040 at the date of

manufacture.

Class 1 lasers are deﬁned as products which do not permit human access to laser radiation in excess of the accessible limits of Class 1 for applicable wavelengths and durations. These lasers are safe under reasonably foreseeable conditions of operation.

The following network modules contain Class 1 lasers: NM-2/155SMSRA-1 NM-2/155SMSRB-1 NM-2OC3/SMSRA-1 NM-4/155SMSRA-1 NM-4/155SMSRB-1 NM-4OC3/SMSRA-1 NM-4OC3/SMSRA-1A NM-4OC3/SMSRB-1 NM-2/155SMSRC NM-4/155SMSRC NM-2/155SMLRA-1 NM-2/155SMLRB-1 NM-2/155SMLRC-1 NM-2OC3/SMLRB-1 NM-2OC3/SMMRA-1 NM-4/155SMLRB-1 NM-4/155SMLRC-1 NM-4OC3/SMLRB-1 NM-4OC3/SMMRA-1 NM-1/622SMIRC NM-4/155LR3SCC NM-4/155SR3SCC

Safety Agency Compliance

This preface provides safety precautions to follow when installing a Cabletron Systems, Inc., product.

Safety Precautions

For your protection, observe the following safety precautions when setting up your equipment:

• Follow all warnings and instructions marked on the equipment.

• Ensure that the voltage and frequency of your power source matches the voltage and frequency inscribed on the equipment’s electrical rating label.

• Never push objects of any kind through openings in the equipment. Dangerous voltages may be present. Conductive foreign objects could produce a short circuit that could cause ﬁre, electric shock, or damage to your equipment.

PREFACE

Symbols

The following symbols appear in this book:

WARNING!

CAUTION

Hazardous voltages are present. If the instructions are not heeded, there is a risk of electrical shock and danger to personal health.

You risk damaging your equipment and/or software if you do not follow these instructions.

PREFACE

Modiﬁcations to Equipment

Do not make mechanical or electrical modiﬁcations to the equipment. Cabletron Systems, Inc., is not responsible for regulatory compliance of a modiﬁed product.

Placement of a Cabletron Systems Product

CAUTION

To ensure reliable operation of your Cabletron Systems product and to protect it from overheating, openings in the equipment must not be blocked or covered. A Cabletron Systems product should never be placed near a radiator or heat register.

Power Cord Connection

WARNING!

Cabletron Systems products are designed to work with single-phase power systems having a grounded neutral conductor. To reduce the risk of electrical shock, do not plug Cabletron Systems products into any other type of power system. Contact your facilities manager or a qualiﬁed electrician if you are not sure what type of power is supplied to your building.

Your Cabletron Systems product is shipped with a grounding type (3-wire) power cord. To reduce the risk of electric shock, always plug the cord into a grounded power outlet.

xii

CHAPTER 1

The Cabletron 9A000 and SFCS series ATM Switch brings ATM connectivity to LAN workgroup, LAN backbone, and LAN/WAN internetworking applications. Together with the Cabletron series of ATM Computer Interfaces, the 9A000 and SFCS series meet the networking demands of today’s distributed, time-critical applications.

The Cabletron 9A000 and SFCS series ATM high-performance ATM switches deliver switching capacity and speed for ATM applications. A non-blocking switching capacity of 2.5 Gbps is continually available for connectivity to 16 users or networking devices, each running at speeds up to 622 Mbps or 24 users or network devices running at 100 Mbps.

This chapter provides an overview of the ATM Standard and Cabletron Systems 9A000 and SFCS series Switches. It details the hardware and software requirements necessary to use the 9A000 and SFCS series and also provides information on the contents of the 9A000 and SFCS series Switch packages.

Introduction

1.1 Overview of the ATM Standard

Asynchronous Transfer Mode, or ATM, is a communication architecture based on the switching of small ﬁxed length packets of data called cells . In ATM, all data is transferred in 53-byte cells. Each cell has a 5-byte header that identiﬁes the cell’s route through the network and 48-bytes containing user data. This user data in turn carries any headers or trailers required by higher level protocols.

The operation of an ATM switch is conceptually quite simple. The header of each cell contains a virtual connection (VC) identiﬁer, consisting of a virtual path identiﬁer (VPI) and a virtual channel identiﬁer (VCI). On each incoming link, an arriving cell’s VC identiﬁer uniquely determines a new VC identiﬁer to be placed in the cell header, and the outgoing link over which to transmit the cell. In the case of a multicast connection, the VC identiﬁer maps to a set of new VC identiﬁers and outgoing links.

Perhaps the single most important advantage offered by ATM, in addition to the speed at which data is transferred, is its open-ended growth path. ATM is not locked into a single physical medium or speed. The ﬁxed-size ATM cell allows trafﬁc from multiple sources (simultaneous video, audio, and data

1-1

Introduction

1.2 Hardware Description

communication) to be switched to multiple destinations by fast ATM switches such as the Cabletron 9A000 and SFCS series (connecting up to 64 workstations with an aggregate capacity of 2.5 Gbps or 96 workstations running at 100 Mbps). Larger LANs can be built by interconnecting multiple 9A000 and SFCS

series ATM switches.

Based upon international standards developed by the CCITT, ATM allows for fast packet switching of cells, 53 bytes in length. By using small cells to transfer data, coupled with a low latency switch supporting isochronous timing, ATM is able to support a wide range of audio, video, image, and data communications requirements.

Unlike shared-medium LAN technologies such as Ethernet and Token Ring, in which users must contend for bandwidth, ATM switching provides dedicated, deterministic, high-speed connectivity. In addition, ATM is scalable from 155 Mbps to 2.5 Gbps - to the desktop, or for the entire network.

The 9Cabletron 9A000 and SFCS series ATM switches, as shown in Figure 1-1 and Figure 1-2, provide connectivity for up to 16 computer workstations, hubs, or routers at rates operating up to 622 Mbps/sec (or 24 workstations running at 100 Mbps) via dedicated ﬁber optic links and twisted pair links.

Wide-area network (WAN) connectivity is seamlessly integrated into the 9A000 and SFCS series for connection to private networks or ATM SONET, DS-3, DS-1, E-3, or J-2 services.

Interconnecting multiple 9A000 and SFCS series switches at various speeds is simple. Once a new 9A000 and SFCS series switch is added to the network, all other switches recognize its presence and dynamically establish connections to ports on the new switch. Furthermore, scaling the network is accomplished without costly and time consuming address reconﬁguration and LAN segmentation.

The 9A000 and SFCS series is a self-contained ATM switch that includes an Ethernet connection to provide network management access.

1-2

Introduction

Figure 1.1 - 9A000 Switch Conﬁguration

1-3

Introduction

SecureFast Cell Switch

5 VOLT

RX2

RESET

RX2

RX1

TX2

TX1

RX2

RX1

TX1

Tx C

ETH

SER

RX3

TX2

TX3

SELECT

RX4

RX3

TX4

TX3

RX4

TX4

SFCS

PWR

RESET

RX1

TX2

TX1

RX2

RX1

TX2

TX1

SER

ETH

Figure 1.2 - SFCS-200BX Switch Conﬁguration

1.2.1 Front Panel Description

The front panel of the 9A000 and SFCS series includes the following features: a power switch, two power supply LEDs, a RESET button, an RS-232 serial port, an Ethernet 10BaseT port, a NEXT pushbutton, a SELECT pushbutton, a display LED, and a power LED. For more information about these features, please refer to Appendix A of this manual.

1.2.2 9A000 and SFCS Series Hardware Conﬁguration

The 9A000 and SFCS series hardware consists of a switch board, an i960 switch control processors, and network modules. These components work together to provide ATM switching capabilities, as well as distributed connection set-up and management. A functional description for each component follows.

RX3

TX3

RX3

TX3

FORE - FORE

SELECT

-200BX

5 VOLT

RX4

TX4

RX4

TX4

PWR

1-4

1.2.3 9A000 and SFCS Series Switch Board

The 9A000 and SFCS series switch board contains the VPI/VCI lookup tables, and routing circuitry to ensure that a cell received from an input port is correctly switched to one or more output ports. The 9A000 and SFCS series switch board can accept up to four network modules, which themselves contain up to six ports each. The switch board also has an interface, controlled by the switch control processor, that is functionally equivalent to an ATM host interface. (See Switch Control Software for more information).

1.2.4 Switch Control Processor

The i960 switch control processor provides the distributed connection set-up for a network of ATM switches. The switch control processor primarily provides management access through SNMP and is responsible for storing and updating all SNMP management information. Additionally, the switch control processor can access the ATM switch in-band in very much the same manner as an ATM adapter in a workstation (such as the Fore SBA-200 SBus Adapter). Since it has the ability to communicate over IP, the 9A000 and SFCS series can route IP trafﬁc from one given IP network to another. The switch control processor, and associated software, manages the behavior of the 9A000 and SFCS series switch board (i.e., connection setup), but is not involved in the actual cell switching.

1.2.5 9A000 and SFCS Series Network Modules

The network modules for the 9A000 and SFCS series act as the physical input/output ports to the 9A000 and SFCS series switch. A network module may have up to six physical ports, depending on its physical conﬁguration.

There is also a logical control port located inside the SCP which is referred to in the switch software as the Control Port (CTL). This control port is a logical (not physical) location where cells that are directed to the SCP itself are sent. (See section 1.4.1 for more information.)

Introduction

1.2.6 Environmental Information

In the 9A000 and SFCS series, there is a temperature sensor, located over the switch fabric area of the enclosure, which ensures that the internal cabinet temperature is not too high. This temperature is displayed on the Environmental Module LCD readout, within the MMAC Plus chassis. The power utilization for the 9A000 and SFCS series is also monitored and can be displayed on the Environmental Module.

1-5

Introduction

Table 1.1 - System Hardware and Environmental Speciﬁcations

Features SFCS Series/9A000

Switching Fabric

Trafﬁc Policing

Number of Ports

Switch Transit Delay

Connection Setup Time < 10 milliseconds

Maximum Port Speed

Power (nominal) 90 - 270 VAC @ 47 - 63 Hz

Dimensions H: 4.75” (12.1 cm)

Weight 43 lbs (19.5 kg)

Operating Temperature 5˚C to 40˚C

2.5 Gbps non-blocked

UNI 3.1 dual leaky bucket support

up to 24 ports

< 10 microseconds

622 Mbps (OC-12/STM-4)

2.2 amps maximum

W: 17.5” (44.5 cm) D: 18” (45.7 cm)

up to 10,000 ft

1-6

Operating Humidity 10 to 90% RH

Storage Temperature -40˚C to 70˚C

up to 30,000 ft

Storage Humidity 5 to 95% RH

1.2.7 Standards Compliance

• ITU I.361 ATM Layer

• ATM Forum UNI 3.0

1.2.8 Safety Compliance

• US: UL 1950

• Canada: CSA 22.2 No. 950-M89

• Europe: EN 60950

1.2.9 Emissions Compliance

• FCC Part 15, Class A

• CISPR 22, Class A

• VCCI, Class 1

1.2.10 Electromagnetic Compatibility (EMC)

The following all comprise EN 50082-1:

• ESD Susceptibility: IEC 801-2, Level 3

• Radiated Susceptibility: IEC 801-3, Level 2

• Electrical Fast Transient Compatibility: IEC 801-4, Level 2

Introduction

1.3 Software Description

The software for the 9A000 and SFCS series runs on a FLASH ﬁle system to accomplish switch and connection management, IP connectivity, and SNMP network management.

1.3.1 Switch Control Software

The Switch Control Software (SCS) is the “brains” of the 9A000 and SFCS series switches. The SCS controls the 9A000 and SFCS series switch board and handles connection set-up and tear-down duties. The SCS can also communicate with other Cabletron Systems switches using the SPANS NNI protocol to learn network topology and establish connections across multiple switches. In addition, there is an SNMP agent built into the SCS to allow SNMP management and control.

1-7

Introduction

1-8

CHAPTER 2 Installing the 9A000

This chapter contains the procedures for installing the 9A000. The installation of the SFCS series is covered in Chapter 3.

2.1 Installing the 9A000

To install the Cabletron 9A000, follow the steps below:

1. Switch off the power supplies and remove all power from the

MMAC-Plus chassis.

2. Remove the blank panels, covering the slots that the module is

being mounted in. All other slots must be covered, if modules are not being installed, to ensure proper airﬂow and cooling.

3. Carefully remove the module from the shipping box. (Save the

box and packing materials in the event the module must be reshipped.)

4. Attach one end of the ESD wrist strap packaged with the MMAC-

Plus chassis to your wrist. Plug the other end into the ESD Wrist Strap Grounding receptacle in the lower right corner of the MMAC-Plus Chassis shown in Figure 2.1.

5. Remove the module from the plastic bag. Observe all precautions

to prevent damage from Electrostatic Discharge (ESD).

6. Carefully examine the module, checking for damage. If any dam-

age exists, DO NOT install the module. Contact Cabletron Systems Technical Support immediately.

7. The modules are installed into the chassis by sliding them into

slots and locking down both the top and bottom plastic tabs, as shown in Figure 2.1. Take care that the module slides in straight and engages the backplane connectors properly. When installing the module, ensure that both circuit cards are between the card guides, as shown in Figure 2.1. Check both the upper and lower tracks of both cards.

2-1

Installing the 9A000

FLNK

INS

FLNK

INS

Jack for ESD wrist strap

2-2

Metal Back-Panel

Circuit Card

Card Guides

Warning:

Ensure that the circuit card is between the card guides.

Lock down the top and bottom plastic tabs

at the same time, applying even pressure.

Figure 2.1 - Installing the 9A000 Module

2.2 The Reset Switch

SMB

CPU

The Reset switch is located on the rightmost front panel, under the top plastic tab as shown in Figure 2.2. It serves two functions:

• Pressing the reset switch twice within three seconds causes the processor (i960) to reset.

• Pressing and holding the switch on for three or more seconds causes the module to shutdown. Pressing and holding again for three seconds restarts the module.

SNMP management may be used to disable this switch to enhance module security.

Installing the 9A000

Reset Switch

Figure 2.2 - The Reset Switch

2-3

Installing the 9A000

2-4

CHAPTER 3 Switch Hardware

Cabletron Systems offers a full line of ATM products that work together to provide a complete ATM network solution. The Cabletron SFCS-200WG ATM switch provide high-performance ATM connectivity for LAN workgroup and desktop applications. The SFCS-200BX ATM switch and the SFCS-1000 ATM switch offer high reliability and port density for LAN backbone and LAN/ WAN internetworking applications. Together with the Cabletron series of ATM LAN and WAN Network Modules, these switches meet the networking demands of today’s distributed, time-critical applications.

All of the Cabletron ATM switches deliver high-performance switching capacity and speed for ATM applications. A non-blocking switching capacity of 2.5 Gbps is continually available on the SFCS-200WG, and the SFCS-200BX. Each switch provides up to 4 ports of connectivity, each running at speeds up to 622 Mbps; or up to 16 ports, each running at speeds up to 155 Mbps; or up to 24 ports, each running at speeds up to 100 Mbps. The 10 Gbps of switching capacity for up to 16 ports of connectivity, each running at speeds up to 622 Mbps; or up to 64 ports, each running at speeds up to 155 Mbps; or up to 96 ports, each running at speeds up to 100 Mbps.

Wide-area network (WAN) connectivity is seamlessly integrated into the SFCS-200BX and the SFCS-1000 for connection to private networks or ATM SONET, DS3 and E3 services.

Interconnecting multiple Cabletron switches at various speeds is simple. Once a new Cabletron switch is added to the network, all other switches recognize its presence and dynamically establish connections to ports on the new switch. Furthermore, scaling the network is accomplished without costly and time consuming address reconﬁguration and LAN segmentation.

This chapter provides an overview of the Cabletron Systems’ family of ATM switches. It details the hardware requirements necessary to use these switches and also provides information on the contents of each of the switch packages.

SFCS-1000 provides

3-1

Switch Hardware

3.1 Switch Hardware Conﬁgurations

The SFCS-200WG, as shown in Figure 3.1, is a self-contained ATM switch that provides an Ethernet connection for network management access. The SFCS-200WG ATM switch hardware consists of a single switch board with an i960 SCP, network modules, and fans. These components work together to provide ATM switching capabilities, as well as distributed connection setup and management.

SYSTEMS

RESET

SecureFast

RX2

RESET

RX1

TX2

TX1

RX2

RX1

TX2

TX1

SER

ETH

RX2

RX1

TX2

TX1

RX2

RX1

TX1

Tx C

ETH

SER

RX3

TX2

TX3

SELECT

RX4

RX3

TX4

TX3

RX4

TX4

PWR

RX3

SELECT

RX3

TX3

SFCS-200WG

5 VOLT

RX4

TX4

RX4

TX4

PWR

Figure 3.1 - SFCS-200WG Switch Conﬁguration

The SFCS-200BX, as shown in Figure 3.2, is a self-contained ATM switch that provides an Ethernet connection for network management access. The SFCS-200BX hardware consists of a single switch board with an i960 SCP, network modules, redundant power supplies, and fans. These components work together to provide ATM switching capabilities, as well as distributed connection setup and management.

3-2

Switch Hardware

SYS

5 VOLT

RX1

TX1

RX1

TX1

RESET

SER

RESET

RX2

RX1

TX2

TX1

RX2

RX1

TX1

Tx C

ETH

SER

RX3

TX2

TX3

SELECT

RX4

RX3

TX4

TX3

RX4

TX4

PWR

SecureFast SFCS

RX2

TX2

RX2

TX2

ETH

SELECT

RX3

TX3

RX3

TX3

SFCS-200BX

5 VOLT

RX4

TX4

RX4

TX4

PWR

Figure 3.2 - SFCS-200BX Switch Conﬁguration

The SFCS-1000, as shown in Figure 3.3, is a self-contained ATM switch that provides an Ethernet connection for network management access. The hardware for the SFCS-1000 consists of up to four switch boards, each with an i960 SCP; network modules; redundant power supplies; a Common Equipment Card (CEC); and a removable fan tray. These components work together to provide ATM switching capabilities, as well as distributed connection setup and management.

3-3

Switch Hardware

SYSTEMS

SFCS-1000

AL1 AL2

AL2

AL1

AL2

ETH

COL

POL

ETH

COL

POL

RESET

SER

ETH

NEXT SELECT

PWR

RX1

TX1

RESET

RX1

TX1

RX2

TX2

TX3 TX4

TX1

TX2

TX3

TX4

SER

RX2

TX2

ETH

NEXT SELECT

RX3

TX3

RX3

RX4

TX4

PWR

TX1 RX1 TX2 RX2 TX3 RX3 TX4 RX4

RX1

RX2

RX3

RX4

RX1

TX1

RX1

TX1

RX2

TX2

RX3

TX3

RX4

TX4

RX1

TX1

RX2

TX2

RX3

TX3

RX4

TX4

RESET

SER

RX2

TX2

ETH

NEXT SELECT

RX3

TX3

RX4

TX4

PWR

TX1 RX1 TX2 RX2 TX3 RX3 TX4 RX4

TX1

RX1

RESET

RX1

TX1 TX2

TX3

TX4

TX1

TX2

TX3

TX4

SER

RX2

TX2

RX2

ETH

NEXT SELECT

RX3

TX3

RX3

RX4

TX4

RX4

PWR

TX1 RX1 TX2 RX2 TX3 RX3 TX4 RX4

RX1

RX2

RX3

RX4

RX1

TX1

RX1

TX1 TX2

RX2

TX2

TX3

RX3

TX3

RX4

TX4

RX1

TX1

48V DC

RX3

RX4

CB1

TX1 RX1 TX2 RX2 TX3 RX3 TX4 RX4

110

RX2

TX2

RX3

TX3

F12A/250V

RX4

TX4

F12A/250V

TB1TB1

3-4

Figure 3.3 - SFCS-1000 Switch Conﬁguration

AC V olt. In

3.2 Switch Hardware Components

3.2.1 Switch Board

The switch board (also referred to as the “switch fabric”) contains the VPI/ VCI lookup tables and routing circuitry to ensure that a cell received from an input port is correctly switched to one or more output ports. The SFCS200WG, and the SFCS-200BX each come with one switch board. The SFCS-1000 can be populated with as many as four switch boards. Each switch board can accept up to four network modules, which themselves can contain up to six ports each. The switch board also has an interface, controlled by the SCP, that is functionally equivalent to an ATM host interface.

3.2.2 Switch Control Processor

The i960 SCP in the SFCS-200WG, SFCS-200BX, and the SFCS-1000 provide the distributed connection setup for a network of ATM switches. The SCP primarily provides management access through SNMP and is responsible for storing and updating all SNMP management information. Additionally, the SCP has direct access to the switch board. The SCP, and associated software, manages the behavior of the switch board (i.e., connection setup), but is not involved in the actual cell switching.

Switch Hardware

3-5

Switch Hardware

3.2.2.1 i960 Switch Control Processor

The front panel of an i960 SCP for the SFCS-200WG, SFCS-200BX, and the SFCS-1000 includes the following features: a RESET button, an RS-232 serial port, an Ethernet 10BaseT port, a NEXT pushbutton, a SELECT pushbutton, a display LED, and a power LED. All of the features are illustrated in Figure 3.4 and are described in detail in the subsections that follow.

RESET

SER

ETH

NEXT SELECT

Figure 3.4 - i960 Switch Control Processor Front Panel

3.2.2.1.1 RESET Button

The RESET button allows the user to reset the switch control software on the SCP. Using RESET “soft boots” the SCP and runs the initial power-on diagnostics. All open AMI sessions are ended by the SCP, and all ports lose any active sessions and initially go off-line after a reset. The ports then return to the conﬁguration stored in the CDB. Because the RESET button is small (to avoid accidental resets), it is recommended that you use a straightened paper clip to push the RESET button.

3.2.2.1.2 RS-232 Serial Port

The RS-232 serial port provides terminal access for any VT100 (or similar) terminal or terminal emulation package to the SCP. The serial port has a standard DB-9 female connector as shown in Figure 3.5.

PWR

3-6

987

Figure 3.5 - RS-232 Serial Port Pinouts

Switch Hardware

Table 1.1 describes the RS-232 serial port pinouts that are illustrated in Figure 3.5.

Table 3.1 - RS-232 Serial Port Pinouts

Pin Number

1 DCD Data Carrier Detect 2 RXD Receive Data 3 TXD Transmit Data 4 DTR Data Terminal Ready 5 GND Signal Ground 6 DSR Data Set Ready 7 RTS Request to Send 8 CTS Clear to Send 9 Not Used

3.2.2.1.3 Ethernet 10BaseT Port

The Ethernet 10BaseT port on the front panel of the SCP has a standard RJ45 connector. There is a transmit LED to the left of this port and a receive LED to the right of this port. Tables 1.2 and 1.3 describe the states of the LEDs and their meanings.

Table 3.2 - Ethernet 10BaseT Transmit LED Description

Signal

Mnemonic

Signal Name

LED Color Meaning

red There is a collision on the port.

green The port is transmitting normally.

Table 3.3 - Ethernet 10BaseT Receive LED Description

LED Color Meaning

red The port is failing link integrity.

green The port is receiving normally.

3-7

Switch Hardware

3.2.2.1.4 CTL Port

3.2.2.1.5 NEXT Pushbutton

3.2.2.1.6 SELECT Pushbutton

3.2.2.1.7 Display LED

A control port inside the SCP, referred to in the switch software as the CTL port, is a logical (not physical) location where cells that are directed to the SCP itself are sent. The CTL port has two roles, serving as both a host and a switch board controller. All signalling from the switch host and every attached host must interact with the switch board controller.

The NEXT pushbutton lets you scroll through the menu that is shown on the display LED after the power is turned on or after the SCP is reset/rebooted.

The SELECT pushbutton lets you choose an option from the menu that is shown on the display LED after the power is turned on or after the SCP is reset/rebooted.

During the boot process and the initial power-on diagnostics, the display LED shows messages about what is happening to the SCP. It is also used to show the menu choices for the NEXT and SELECT pushbuttons after the power is turned on or after the SCP is reset/rebooted. The choices shown on the display LED are as follows:

Flash ? When chosen, the SCP will attempt to boot from

the FLASH ﬁle.

Ethernet ? When chosen, the SCP boots from the network.

Monitor ? When chosen, the user can connect a terminal to

the serial port and run hardware self-diagnostics.

Auto ? When chosen, the SCP will attempt to boot from

the FLASH. If this is unsuccessful, then the SCP will perform an Ethernet boot.

To access the modes listed above, press the NEXT pushbutton while the switch is booting until the mode you want to access is shown on the display LED. Then, press the SELECT pushbutton.

After the boot process and self-diagnostics are complete, the name of the SCP is shown in the display LED during normal operations, if an SCP name has been assigned. If an SCP name has not been assigned, it will display ATM SWITCH. For information on creating or modifying the SCP name, please refer to the section on conﬁguring the SCP name in Appendix B, AMI Conﬁguration Commands, in the Cabletron ATM Switch Conﬁguration Manual.

3-8

Switch Hardware

3.2.2.1.8 Power LED

The power LED that is located to the right of the display LED on the front panel of the SCP reﬂects the current state of power to the SCP. Table 1.4 lists the states of the power LED and their meanings.

Table 3.4 - Power LED Description

LED Color Meaning

red The SCP has power, but has failed. (The individual

SCP, not the entire switch, has not passed

self-diagnostics.)

green The SCP is powered up and is in good status.

off There is no power to the SCP.

A power switch is located on the upper right-hand corner of the SFCS200WG. When the power is turned on, the power LED, located to the right of the display LED, illuminates green and the initial power-on diagnostics are run. When the power is turned off, the power LED is extinguished.

3.2.3 Network Modules

The network modules in a Cabletron switch board act as the physical input/ output ports to the switch board. A network module may have one, two, four, or six physical ports, depending on its conﬁguration.

3.2.3.1 Port Numbering

The individual ports on a network module are numbered according to the Board-Network Module-Port (BNP) notation.

Board Refers to the number of the switch board that

Network Module Refers to the slot (A, B, C, or D) in the switch

Port Refers to the physical port (1 - 6) being num-

contains the port being numbered. “Board” is always 1 in an SFCS-200BX, or an SFCS-200WG, since these switches each contain only one switch board. “Board” can be 1, 2, 3, or 4 in an SFCS-1000, depending on the number of the physical switch board that contains the port being numbered.

board that contains the port being numbered.

bered on the individual network module.

3-9

Switch Hardware

For example, according to this notation, the fourth port on a network module in slot B of switch board #2 is port 2B4.

Figure 3.6 illustrates how the ports of various network modules, located in switch board #4 of an SFCS-1000, for example, would be numbered.

PORT

PORT PORT PORT PORT

4C1 4C2 4C3 4C4

RX1

C AB

RX2

TX1

TX2

RX1

TX1

RX3

RX4

TX3

TX4

PORT

4A1

4D2

PORT

4D1

R1 R2 R3 R4 R5 R6T1 T2 T3 T4 T5 T6

RX1

TX1

PORT PORT

4B1 4B2

PORT

4D3

RX2

TX2

PORT

4D4

PORT

4D5

PORT

4D6

Figure 3.6 - Network Module Port Numbering

NOTE: For information about the technical and oper-

ating speciﬁcations for all of the Cabletron ATM network modules, see Appendix C, Hardware Speciﬁcations, in this manual.

3-10

3.2.4 Power Supply Modules

The SFCS-200BX and the SFCS-1000 each come with two removable power supply modules. In the event of a single power supply failure, the power supply indicator LED(s) on the front panel of the supplies will indicate the failed supply. The failed power supply can be removed and replaced while the other supply continues to provide power to the enclosure. In this manner, a single power supply failure will not cause the switch to stop functioning.

WARNING! The SFCS-200WG comes with internal, non-

removable power supplies. Attempting to remove these power supplies could result in serious injury or may cause permanent damage to the unit.

3.2.4.1 SFCS-200BX AC Power Supply

The SFCS-200BX has two power supply LEDs, one for each removable, hotswappable power supply. Each LED is located to the left of the power switch on the front panel for that supply. On the AC power supply for the SFCS-200BX, the LED is green under normal circumstances, indicating that the 5-volt supply coming from that particular power supply is functioning properly.

Switch Hardware

CAUTION If the power supply LED is red, the faulty sup-

ply should be turned off as soon as possible, using the single power switch which controls power to that supply. The problem should then be diagnosed and repaired. Please refer to Chapter 3, Hardware Maintenance Procedures, for details about how to hot-swap a power supply in the SFCS-200BX.

NOTE: A replacement AC power supply will not

function in a DC-equipped SFCS-200BX, and vice-versa. However, no damage will be done if this occurs.

3-11

Switch Hardware

3.2.4.2 SFCS-1000 AC Power Supply (Model A)

The model A AC power supply for an SFCS-1000 is shown in Figure 3.7.

48V DC

5VDC OK

SHUTDOWN

CAUTION: This unit has more than one

power cord. To reduce the risk of

electric shock, disconnect two power

supply cords b servicing.

ATTENTION: Cet appareil comporte plus

d’un cordon d’alimentation. Aﬁn

de prevenir les chocs electriques,

debrancherles 2 cordons d’alimentation

avant de faire le depannage.

Retention screws

CAUTION: Double pole/neutral fusing

F12A/250V

Ejection/insertion handle

3-12

Figure 3.7 - Model A SFCS-1000 AC Power Supply

Switch Hardware

3.2.4.2.1 Power Supply LEDs

There are four LEDs on the front panel of the model A SFCS-1000 AC power supply which indicate the status of the power supply. The LEDs and their functions are described in the following table:

Table 3.5 - SFCS-1000 Power Supply LED Descriptions

3.2.4.2.2 Shutdown Conditions

To avoid damaging itself or the switch, the model B SFCS-1000 AC power supply shuts itself down under the following condition:

Overload The power supply is overloaded or the AC input

is out of speciﬁcation, and the supply voluntarily shuts down to avoid damage to the system.

NOTE: The SFCS-1000 CEC can not shut down the

model A power supply. Only the power supply can shut itself down in an overload state.

3-13

Switch Hardware

If a model A power supply goes into shutdown, it will remain shut down until the power switch is turned off and turned on again (power cycle). The power switch must remain off long enough for the SHUTDOWN LED to extinguish (this allows the capacitors to discharge).

WARNING! A replacement AC power supply should

never be placed in an SFCS-1000 that already contains a DC power supply, and vice-versa. If these instructions are not heeded, there is a risk of electrical shock, danger to personal health, and serious damage to the equipment.

If the power supply needs to be replaced, please refer to Chapter 3, Hardware Maintenance Procedures, for hot-swap information.

3-14

3.2.4.3 SFCS-1000 AC Power Supply (Model B)

The model B AC power supply for an SFCS-1000 is shown in Figure 3.8.

Switch Hardware

ON/OFF Switch

Handle

100 - 120V ~ T15A 250V 200 - 240V ~ T15A 250V 50 - 60Hz

PWR

FAULT

TEMP

I LIM

CAUTION: This unit has more than one po wer cord. To reduce the risk of electric shock, disconnect two power supply cords b servicing. ATTENTION: Cet appareil comporte plus d’un cordon d’alimentation. Aﬁn de prévenir les chocs électriques, débrancher les 2 cordons d’alimentation avant de faire le dépannage.

Figure 3.8 - Model B SFCS-1000 AC Power Supply

Captive fasteners

3-15

Switch Hardware

3.2.4.3.1 Power Supply LEDs

3.2.4.3.2 Shutdown Conditions

There are four LEDs on the front panel of the model B SFCS-1000 AC power supply which indicate the status of the power supply. The LEDs and their functions are described in the following table:

Table 3.6 - SFCS-1000 Power Supply LED Descriptions

To avoid damaging itself or the switch, the model B SFCS-1000 AC power supply shuts itself down under the following error conditions:

Input undervoltage The AC line voltage is below 87 ±5VAC RMS.

Output undervoltage Output 1 is 42 ±2 VDC or Output 2 is below 4.5

±0.25 VDC. Shutdown from undervoltage is defeated during power-up period (2 seconds maximum) to allow slow-start.

Output overvoltage The voltage at Output 1 or Output 2 is above

125% ±8% of the nominal voltage.

Overtemperature Any power semiconductor has reached 90% of

its maximum junction temperature.

3-16

NOTE: The SFCS-1000 CEC can not shut down the

model B power supply. Only the power supply can shut down and restart itself.

Switch Hardware

If a model B power supply goes into shutdown, it remains turned off until the fault condition is rectiﬁed. At that point, the power supply restarts itself, except in the case of an overvoltage condition.

To recover from a shutdown caused by an overvoltage state, the AC line input must be turned off for at least one second.

WARNING! A replacement AC power supply should

If the power supply needs to be replaced, please refer to Chapter 3, Hardware Maintenance Procedures, for hot-swap information.

3-17

Switch Hardware

3.2.5 SFCS-1000 Fan Tray

3.2.6 SFCS-1000 Temperature Sensing

The SFCS-1000 comes with a removable fan tray. The speed of each fan is monitored by circuitry in the CEC, and is available via SNMP. In this manner, the failure of any fan can be detected immediately. The fan tray is hot-swappable, and the entire tray may be replaced in the event of a single or multiple fan failure. Please refer to Chapter 3, Hardware Maintenance Procedures, for information about how to hot-swap a fan tray.

NOTE: The fans in the SFCS-200WG, and the SFCS-

200BX are not removable.

In the SFCS-1000, a built-in thermal temperature sensor resides on each switch board and reads out the board’s local temperature. By default, the switch control software will trigger an alarm at 65˚C and will reset the alarm when the temperature drops back down to 60˚C. However, the user can conﬁgure these alarm and reset thresholds in the software on an individual board via AMI. Please refer to Appendix C, AMI Operation Commands, in the Cabletron ATM Switch Conﬁguration Manual for more information about conﬁguring these thresholds. If the temperature of an individual switch board were ever to reach 75˚C, the switch board would shut itself down immediately.

3-18

3.2.7 SFCS-1000 Common Equipment Card (CEC)

The CEC provided with the SFCS-1000 performs several functions. Because each SCP contains an Ethernet port, a major function of the CEC is to provide a single, uniﬁed Ethernet port connection for all of the SCPs. The CEC is also responsible for monitoring the environmental conditions of the switch and reporting this information to the SCPs. The CEC reports conditions such as malfunctioning fans, overheated power supplies, and an overheated enclosure.

3.2.7.1 CEC Front Panel

The front panel of the SFCS-1000 CEC includes the following features: alarm relay contacts, CEC status LEDs, and an Ethernet port with four LEDS. These features are illustrated in Figure 3.9. Refer to the following subsections for detailed descriptions of these features.

AL1 AL2

Switch Hardware

AL1 AL2

Figure 3.9 - CEC Front Panel Status Indicators

3.2.7.2 Alarm Relay Contacts

Pins 1 and 2 are the contacts for AL1, and pins 3 and 4 are the contacts for AL2. Although the pins are not actually labeled on an SFCS-1000 CEC, they will be referred to as shown in Figure 3.10.

ETH

AL1 AL2

Pin 1 Pin 2 Pin 3 Pin 4

Figure 3.10 - Alarm Relay Contacts for AL1 and AL2

COL

POL

3-19

Switch Hardware

Table 3.7 - Alarm Relay Contact Status During Major and Minor Alarms

Switch Powered OFF Jumped Jumped

During Boot Indeterminate Indeterminate

Normal Operation Open Open

Minor Alarm Only Jumped Open

The alarm relay contacts are normally closed when there is no power to the switch. The user can attach alarm circuits to these contacts to trigger an external alarm in the case of an alarm condition on the switch.

The user can deﬁne AL1 and AL2 as major and minor alarm indicators and can display which condition is alarming through the use of AMI. For more information, please refer to the alarm conﬁguration section in Appendix B, AMI Conﬁguration Commands, in the Cabletron ATM Switch Conﬁguration Manual.

Condition Pins 1 and 2 Pins 3 and 4

Major Alarm Only Open Jumped

Major and Minor Alarms Jumped Jumped

NOTE: In Table 1.7, “Jumped” indicates that the cir-

cuit between the indicated pins has been closed (i.e., an external alarm would be triggered if connected to the pins).

3-20

Switch Hardware

3.2.7.3 CEC Status LEDs

This subsection discusses the meaning of the status LEDs on the CEC of the SFCS-1000 switch. The LEDs have been designed to provide information pertaining to the state of the switch at a glance.

SW4PS2

AL1

AL2

SW3PS1

Figure 3.11 - CEC Status LEDs

There are eight status LEDs located on the front panel of the CEC in a 2 row x 4 column arrangement. The only LEDs that are actually labeled are AL1 and AL2, but for the purposes of discussion, the other LEDs will be referred to as labeled in Figure 3.11. The LEDs have been broken down into the following function groups: alarm LEDs, power supply LEDs, and switch board LEDs.

3.2.7.3.1 Alarm LEDs

The LEDs labeled AL1 and AL2 are alarm relay LEDs. During boot-up, AL1 and AL2 are in an indeterminate state. During normal operation, they will be off. During a state of alarm, they will illuminate red. By default, AL1 is the major alarm indicator for SPANS failure and for link failure. By default, AL2 is the minor alarm indicator for fan failure, an overtemperature condition, or a power supply failure. The user may display and/or change these conﬁgurations through the use of AMI. For more information, please refer to the alarm conﬁguration section in Appendix B, AMI Conﬁguration Commands, in the Cabletron ATM Switch Conﬁguration Manual.

SW2

SW1

3-21

Switch Hardware

3.2.7.3.2 Power Supply LEDs

3.2.7.3.3 Switch Board LEDs

There are two power supply LEDs on the front panel of the CEC, one for each power supply. The LEDs for the two power supplies should be illuminated yellow, indicating that the CEC is on and that the power supply corresponding to that LED is functioning correctly. The LED for a failed power supply will be extinguished. On an SFCS-1000, power supply “1” is in the slot labeled PS1 on the enclosure, while power supply “2” is in the slot labeled PS2 on the enclosure.

There are four switch board LEDs on the front panel of the CEC, one for each possible switch board. These LEDs should be blinking, indicating that the switch has booted and is operating correctly. If the SCP is removed, the LEDs may remain in a steady-on or steady-off state. Even if the SCP has booted correctly, the LEDs will not illuminate if the SCP is running a software version prior to 3.2.0. If the switch board in the slot corresponding to the LED is not intended for an SFCS-1000 (e.g., it is an SFCS-200BX board), or if the entire switch board corresponding to that LED is removed, then that LED will be extinguished. On an SFCS-1000, the SW1 LED corresponds to switch board “1,” which is in the slot labeled 1 on the enclosure, and so on.

3-22

3.2.7.4 Ethernet Port

The Ethernet port located on the CEC of the SFCS-1000 has a standard RJ-45 female connector and is designed to provide a single, uniﬁed Ethernet connection. It is connected via the backplane and simple Ethernet repeater to each SCP’s Ethernet port, thus eliminating the need to attach each SCP individually. This Ethernet port has four LEDs which indicate its current status as shown in Figure 3.12. These LEDs are described in Tables 1.8 through 1.11.

Figure 3.12 - CEC Ethernet Port and LEDs

COL

POL

ETH

Table 3.8 - CEC Receive (RX) LED Description

LED Color Meaning

green The Ethernet port is receiving trafﬁc normally.

off The Ethernet port is NOT receiving trafﬁc.

Table 3.9 - CEC Link Integrity (LI) LED Description

LED Color Meaning

green The status of the twisted pair cable connected to

the CEC Ethernet port is OK.

off The Ethernet port is NOT receiving link integrity

pulses. Check the integrity of the connection.

Table 3.10 - CEC Collision (COL) LED Description

LED Color Meaning

Switch Hardware

red An Ethernet collision has been detected on the

CEC Ethernet port.

off No Ethernet collisions have been detected.

Table 3.11 - CEC Polarity (POL) LED Description

LED Color Meaning

amber A reverse polarity condition has been detected on

the twisted pair cable connected to the CEC Ether-

net port. The polarity is automatically corrected,

but the amber light will remain illuminated until a

corrected twisted pair cable is inserted into the

Ethernet port.

off The polarity of the twisted pair cable connected to

the CEC Ethernet port is OK.

3-23

Switch Hardware

3-24

CHAPTER 4 Switch Setup

This chapter describes how to handle and set up a Cabletron ATM switch prior to its operation.

4.1 Introduction

Before installing a Cabletron ATM switch, there are several important factors that must be taken into consideration, depending on the type of installation site. The following sections discuss in detail how to install a Cabletron ATM switch and any prerequisites to the installation.

NOTE: It is important to read through the ENTIRE

installation procedure before attempting to turn on the power to the unit.

4.2 Unpacking

Upon receipt of, and before opening your Cabletron ATM switch, inspect the package for any damage that may have occurred during shipping. If the package shows any signs of external damage or rough handling, notify your carrier’s representative.

When unpacking your Cabletron ATM switch, be sure to keep all original packing materials. They may be needed for storing, transporting, or returning the product.

4-1

Switch Setup

4.2.1 Inventorying the Unit

A complete inventory of the Cabletron ATM switch package should be performed before any power is supplied to the unit.

The Cabletron ATM switch package should contain the following:

• Cabletron ATM switch

• Cabletron ATM Switch User’s Manual (this manual)

• Cabletron ATM Switch Conﬁguration Manual

• Power cords

• International power cords (optional)

• Modem serial cable

• Anti-static grounding strap

• Product registration card

• Rack-mount kit (standard with an SFCS-200BX)

The rack-mount kit should contain the following:

• 1 left rack-mount bracket

• 1 right rack-mount bracket

• 1 cable strain relief rail

• 6 Phillips-head screws

If any of the items listed above are missing or damaged, please contact Cabletron Systems’ Technical Support immediately.

1. The SFCS-200WG comes with one power cord (or international power cord). The SFCS200BX and the SFCS-1000 each come with two power cords (or international power cords).

2. The rack-mount kit is not applicable to the SFCS-1000. The rackmount kit is optional for the SFCS-200WG and may be purchased separately.

4-2

4.3 Electrical Considerations

The following items should be considered when setting up the switch:

CAUTION Consideration should be given to the connec-

tion of the equipment to the supply circuit and the effect that the overloading of circuits could have on overcurrent protection and supply wiring. Appropriate consideration of equipment nameplate ratings should be used when addressing this concern.

CAUTION Reliable grounding of rack-mounted equip-

ment should be maintained. Particular attention should be given to supply connections other than direct connections to the branch (i.e., use of power strips).

Switch Setup

4-3

Switch Setup

4.4 Rack-Mounting an SFCS-200BX

The SFCS-200BX is designed to be installed either as a stand-alone unit placed on the desktop, or as a rack-mounted unit using the included rack-mount kit (refer to section 4.2.1). The following items should be addressed when rackmounting this switch:

WARNING! When rack-mounting equipment, make sure

that a hazardous condition is not created due to uneven weight distribution.

CAUTION To prevent damage to your equipment,

Cabletron Systems recommends that the maximum operating temperature not exceed 40˚C. Consideration must be made if the switch is to be installed in a closed or multi-unit rack assembly, because the ambient temperature of the rack environment may be greater than the room ambient temperature.

4-4

CAUTION Take care not to block the air vents of the

switch, as this would compromise the amount of air ﬂow required for proper cooling.

4.4.1 Required Tools

A set of rack-mount brackets, a cable relief strain rail, and 6 Phillips-head screws are supplied with each SFCS-200BX for rack-mounting the unit. You will need to supply a Phillips screwdriver.

WARNING! To prevent user injury and possible damage to

equipment, Cabletron Systems recommends that at least two people be present when rackmounting the SFCS-200BX.

4.4.2 Installing the Rack-mount Brackets

To install the rack-mount brackets and cable relief strain rail, use the following procedure:

1. Carefully place the SFCS-200BX unit upside down on a clean, ﬂat,

sturdy work surface with the front of the unit still facing front.

2. Using a Phillips screwdriver, remove the four feet from the bottom

of the unit.

3. Each rack-mount bracket has three screws that secure the bracket

to the bottom of the unit. The screw closest to the front of the unit is used to secure the bracket to the bottom of the unit as well as secure the cable relief strain rail to the front of the unit. Tighten the three screws to secure the left bracket, marked HWST0027-0001, and the left side of the cable relief strain rail to the left side of the unit. Tighten the three screws to secure the right bracket, marked HWST0027-0002, and the right side of the cable relief strain rail to the right side of the unit.

CAUTION When attaching the rack-mount brackets, the

use of screws other than those provided could result in damage to the unit.

Switch Setup

4. Once the brackets and the cable relief strain rail are secure, choose

a rack position for the SFCS-200BX. The SFCS-200BX should be placed right side up in the rack with the front of the unit facing forward.

CAUTION When it is mounted in the equipment rack, do

not use the SFCS-200BX chassis to support other equipment. This could overload the mounting brackets and cause damage to the unit.

4-5

Switch Setup

NOTE: The SFCS-200BX is an operational ATM

switch at this point if used with other Cabletron switches or with ATM interface cards. However, if other vendor equipment is connected, you may have to complete an initial user conﬁguration.

NOTE: If you wish to have remote access to the

switch, you must ﬁrst install a serial cable and conﬁgure a modem. Please refer to subsections 4.7 and 4.8 for more information.

4-6

4.5 Rack-Mounting an SFCS-200WG

The SFCS-200WG is designed to be installed either as a stand-alone unit placed on the desktop, or as a rack-mounted unit using the optional rackmount kit (refer to section 4.2.1), which may be purchased separately. The following items should be addressed when rack-mounting this switch:

WARNING! When rack-mounting equipment, make sure

that a hazardous condition is not created due to uneven weight distribution.

CAUTION Cabletron Systems recommends that the max-

imum operating temperature not exceed 40˚C. Consideration must be made if the switch is to be installed in a closed or multi-unit rack assembly, because the ambient temperature of the rack environment may be greater than the room ambient temperature.

Switch Setup

CAUTION Take care not to block the air vents of the

4.5.1 Required Tools

A set of rack-mount brackets, a cable relief strain rail, and 6 Phillips-head screws can be purchased separately for rack-mounting the SFCS-200WG. You will also need to supply a Phillips screwdriver.

WARNING! To prevent user injury and possible damage to

switch, as this would compromise the amount of air ﬂow required for proper cooling.

equipment, Cabletron Systems recommends that at least two people be present when rackmounting the SFCS-200WG.

4-7

Switch Setup

4.5.2 Installing the Rack-mount Brackets

To install the rack-mount brackets and cable relief strain rail, use the following procedure:

1. Carefully place the SFCS-200WG unit upside down on a clean, ﬂat, sturdy work surface with the front of the unit still facing front.

2. Using a Phillips screwdriver, remove the four feet from the bottom of the unit.

3. Each rack-mount bracket has three screws that secure the bracket to the bottom of the unit. The screw closest to the front of the unit is used to secure the bracket to the bottom of the unit as well as secure the cable relief strain rail to the front of the unit. Tighten the three screws to secure the left bracket, marked HWST0027-0001, and the left side of the cable relief strain rail to the left side of the unit. Tighten the three screws to secure the right bracket, marked HWST0027-0002, and the right side of the cable relief strain rail to the right side of the unit.

CAUTION When attaching the rack-mount brackets, the

use of screws other than those provided could result in damage to the unit.

4. Once the brackets and the cable relief strain rail are secure, choose a rack position for the SFCS-200WG. The SFCS-200WG should be placed right side up in the rack with the front of the unit facing forward.

CAUTION When it is mounted in the equipment rack, do

not use the SFCS-200WG chassis to support other equipment. This could overload the mounting brackets and cause damage to the unit.

4-8

NOTE: The SFCS-200WG is an operational ATM

switch at this point if used with other Cabletron switches or with ATM interface cards. However, if other vendor equipment is connected, you may have to complete an initial user conﬁguration.

NOTE: If you wish to have remote access to the

switch, you must ﬁrst install a serial cable and conﬁgure a modem. Please refer to subsections 4.7 and 4.8 for more information.

Switch Setup

4-9

Switch Setup

4.6 Rack-Mounting an SFCS-1000

The SFCS-1000 switch is designed to be rack-mounted. The following items should be addressed when rack-mounting this switch:

WARNING! When rack-mounting equipment, make sure

that a hazardous condition is not created due to uneven weight distribution.

CAUTION Cabletron Systems recommends that the max-

4-10

CAUTION Take care not to block the air vents of the

switch, as this would compromise the amount of air ﬂow required for proper cooling.

CAUTION Ensure that any unpopulated switch board

slots are covered with a blank panel before turning on your SFCS-1000. Operating the switch with any of these slots left open can cause a signiﬁcant temperature rise in a very short time.

4.6.1 Installing the SFCS-1000

To install the SFCS-1000 in the equipment rack, use the following procedure:

1. Choose a rack position for the SFCS-1000.

WARNING! Because of the unit’s weight, two people

should lift the unit to place it in the equipment rack.

2. Place the SFCS-1000 in the rack with the front of the unit facing forward.

CAUTION When it is mounted in the equipment rack, do

not use the SFCS-1000 chassis to support other equipment. This could overload the mounting brackets and cause damage to the unit.

Switch Setup

3. After mounting the enclosure, verify that the enclosure is screwed tightly to the rack to ensure that proper grounding is maintained. Additionally, the rack should be connected to an earth ground.

NOTE: The SFCS-1000 is an operational ATM switch

at this point if used with other Cabletron switches or with ATM interface cards. However, if other vendor equipment is connected, you may have to complete an initial user conﬁguration.

NOTE: If you wish to have remote access to the

switch, you must ﬁrst install a serial cable and conﬁgure a modem. Please refer to subsections 4.7 and 4.8 for more information.

4-11

Switch Setup

4.7 Installing the Serial Cable

Connect the serial cable (supplied with the switch) from the switch’s serial port to any tty-type device (such as a terminal, or the serial port of a workstation or PC running a terminal emulation program).

NOTE: The switch’s tty port comes conﬁgured at

9600 baud, 8 bits, no parity and 1 stop bit.

When you turn on the switch, you should see the switch boot on the tty device connected to the switch’s serial port.

NOTE: The switch is ready for user conﬁguration asa

soon as it is connected to a tty-type device. To access the switch, enter asx at the prompt of the tty device.

4-12

4.8 Modem Conﬁguration

All Cabletron ATM switches support modem access. This may be useful if a switch is installed in a remote location where direct, physical access to the switch is not possible or practical. Keep the following in mind when using a modem to access a Cabletron ATM switch:

• To allow the Cabletron ATM switch to communicate with the modem, a Null-Modem Adapter must be installed on the factory-supplied serial cable.

• The Cabletron ATM switch will not disconnect an ATM Management Interface (AMI) session on loss-of-carrier; therefore, you must ensure that you have completely exited from an open AMI session before disconnecting the modem session.

To allow a modem to work with a Cabletron ATM switch, you must complete two sets of conﬁgurations. First, the speed of the serial port on the Cabletron ATM switch must be set to match that of the attached modem and, second, the modem parameters must be conﬁgured correctly.

4.8.1 Modem Parameters

Switch Setup

You should use a Hayes-compatible modem, as the conﬁguration parameters supplied here are applicable to this type of modem. The following parameters should be applied to your Hayes-compatible modem to allow it to function properly with the switch’s serial port. You may attach a tty device to the modem to set these parameters.

Setting Comment ATE0 Turn off Echoing ATQ1 No Return Codes AT&C0 Force Carrier Detect (CD) High AT&D0 Ignore Data Terminal Ready (DTR) AT&W Save Modem Conﬁguration

4-13

Switch Setup

4.9 Conﬁguring IP Addresses

The recommended conﬁguration for a Cabletron ATM switch is to assign an IP address to its network interfaces. This allows you to communicate with the switch from any workstation connected to your ATM LAN. IP addresses must be assigned to the network interfaces in order to perform any SNMP functions. Additionally, if you intend to connect the switch to an Ethernet, you should assign an IP address to the switch’s Ethernet network interface.

To conﬁgure the IP addresses, log in to an AMI session on the switch. To modify the IP address of the SCP’s IP interfaces, enter the following parameters:

NOTE: On an SFCS-1000, the IP address must be con-

ﬁgured individually for each SCP.

conﬁguration ip address <interface> <address>

The <interface> variable indicates the name of the IP interface to be managed. The <address> variable indicates the IP address for this interface.

To modify the IP subnet mask, enter the following parameters:

4-14

conﬁguration ip mask <interface> <mask>

The <interface> variable indicates the name of the IP interface. The <mask> variable indicates the subnet mask for this IP interface.

The IP address that you assign for the switch’s ATM interface must be an address within a subnet that is assigned to your ATM LAN. In general, the entire ATM LAN should be conﬁgured as a single IP subnet. Consequently, the ATM interfaces of all Cabletron switches in the ATM LAN should be in the same IP subnet. Consult your systems administrator for help if you are unsure of how to do so.

4.10 AMI Security

The administrative password on your Cabletron ATM switch may be changed to provide password-protected access to AMI. Cabletron Systems recommends that you do this to prevent unauthorized users from accessing your Cabletron ATM switch. This option is available in AMI at the operation level. Be sure that you want to change the password because upon entering the command string operation password, the user is prompted to enter a new password immediately.

For complete information about how to assign or change the password, please refer to the section entitled “Setting or Changing the Password” in Appendix C, AMI Operation Commands, in the Cabletron ATM Switch Conﬁguration Manual.

4.11 Subsequent Operation

After its initial conﬁguration is complete, a Cabletron switch DOES NOT require a terminal for normal operation.

Switch Setup

NOTE: Cabletron Systems strongly recommends that

you disconnect the serial cable once you have conﬁgured the switch and then access the switch over the ATM network or over Ethernet.

All further communication with your Cabletron switch can be performed over the ATM network or over Ethernet. For example, you can access AMI using telnet.

WARNING! Once installed, before any service is per-

formed on the unit, the power should be turned off and the power cord disconnected, except when following the hot-swap instructions in this manual.

4-15

Switch Setup

4.12 Verifying the Installation

4.13 Product Registration Information

To verify that your switch is up and running, log in to AMI and open a session on the switch. Enter the following parameters at the localhost::> prompt to show the conﬁguration of all of the ports on an individual switch fabric:

conﬁguration port show

After you have successfully completed the installation process, please ﬁll out the enclosed product registration card for your Cabletron ATM switch, and return it to Cabletron Systems immediately.

4-16

CHAPTER 5 Hardware Maintenance

Procedures

This chapter discusses various hardware maintenance procedures for the Cabletron ATM switches. Items discussed include the following:

• Network Module Replacement

• Power Supply Replacement

• Fan Tray Replacement

• Switch Control Processor Replacement

• Switch Board Replacement

5.1 Network Module Replacement

5.1.1 Overview

The network modules in all Cabletron ATM switches are hot-swappable, meaning that they can be removed and replaced with the unit under power. Network modules should only be hot-swapped for purposes of replacing a failed unit. Therefore, they should be replaced with a network module of the same type, the same Series, and with the same number of ports. A network module’s type is the class to which the network module belongs (e.g., OC-3, E3, TAXI, etc.).

If a network module is removed and replaced by a network module of another type or by a network module with fewer ports, all conﬁguration information for that network module’s slot will be deleted, and the new network module will be conﬁgured with the defaults for its type. For example, if a 4-port Series A OC-3c is replaced by a 4-port Series C OC-3c, the Series C network module will use the same conﬁguration of the Series A network module. Any additional conﬁgurable variables will contain OC-3c defaults. If a 4-port OC-3c is replaced by a 4-port DS3, all conﬁguration information for that slot will be deleted and the DS3 will be initialized with DS3 defaults. If a 6-port DS3 is replaced by a 2-port DS3, all conﬁguration information for the slot will be deleted, and the new DS3 initialized with DS3 defaults. If a network module is placed into a previously vacant slot, it will be initialized into the default state appropriate to that type of network module.

5-1

Hardware Maintenance Procedures

5.1.2 Multicast Mode

When hot-inserting or hot-swapping a network module, the mode in which the switch is running must also be considered. A Cabletron 200 Series switch can operate in one of two multicast modes: extended mode or non-extended mode.

• Extended mode - The added features of Series C network modules give Cabletron switches greater ﬂexibility when choosing VCIs for multicast connections. This ﬂexibility provides more successful multicast (point-to-multipoint, or PMP) connection setups. If a switch fabric contains no network modules or if it contains only Series C network modules, the switch will operate in extended mode.

• Non-extended mode - If a switch fabric contains at least one Series A or at least one Series B network module, that switch fabric will operate in non-extended (or mixed) mode.

NOTE: The mode in which the switch operates is

determined each time the SCP restarts. If a switch is running in extended mode and a Series A or B network module is hot-inserted, the switch will not automatically revert to non-extended mode. The switch must be restarted immediately so that it operates in non-extended mode. If it is not restarted, all multicast connections fail on the Series A or B network module.

5-2

You can display the multicast mode in which your switch is operating by using the conﬁguration board show command in the ATM Management Interface (AMI).

NOTE: If a switch is running in non-extended mode,

originating path 0 should always exist on port 1 of each Series C network module for multicast connection setups to succeed. Multicast connection information for all of the ports of Series C network modules is stored in the space allocated for port 1 and path 0 on each Series C network module.

5.1.3 Hot-swapping Network Modules

When removing or replacing network modules, use the following procedure:

WARNING! To reduce risk to the user and to prevent dam-

age to equipment, it is recommended that you use the included grounding strap when handling this or any other component.

NOTE: All AMI sessions should be terminated before

hot-swapping network modules of different types.

1. Label and remove all network connections from the ports on the network module.

2. Loosen the two captive fasteners on either edge of the network module using a straight screwdriver.

3. Pull ﬁrmly but carefully on the captive fasteners, removing the network module from the switch as shown in Figure 3.1.

Hardware Maintenance Procedures

4. Insert the replacement module by sliding it into the card guides. Push ﬁrmly to seat the network module so that the faceplate is ﬂush with the switch. Re-tighten the captive fasteners.

CAUTION For continued safety, tighten the captive fas-

teners with a straight screwdriver.

5. Restore the network connections from Step 1.

RX1

TX1

Loosen captive fasteners and pull STRAIGHT out.

Figure 5.1 - Removal of Network Modules

RX2

TX2

2X1

RX3

TX3

RX4

TX1

TX4

TX1

5-3

Hardware Maintenance Procedures

5.2 Power Supply Module Replacement

The power supplies in the SFCS-200BX and the SFCS-1000 are hot-swappable, meaning that they can be removed/replaced without having to shut down the switch.

WARNING! DO NOT attempt to replace a power supply

5.2.1 SFCS-200BX Power Supply Module Replacement

5.2.1.1 Replacing an SFCS-200BX AC Power Supply

The procedure for hot-swapping an SFCS-200BX AC power supply module is as follows:

module without reading this section. Serious injury to the user or damage to the equipment may result if proper replacement procedures are not followed.

5-4

WARNING! To reduce risk to the user and to prevent dam-

age to the equipment, it is recommended that you use the included grounding strap when handling this or any other component.

NOTE: A replacement AC power supply will not

function in a DC-equipped SFCS-200BX, and vice-versa. However, no damage will result if this occurs.

1. Determine which power supply is defective by examining the power supplies themselves. A red LED or an extinguished LED indicates the failed supply. Power supply “1” is on the left-hand side of the unit, and power supply “2” is on the right-hand side (while facing the front of the unit).

Hardware Maintenance Procedures

WARNING! Failure to perform Step 2 can result in serious

injury to the user or damage to the equipment.

2. Turn OFF the power switch on the front of the defective power supply.

3. Unplug and remove the power cord from the rear of the unit that corresponds to the failed supply. When facing the front of the unit, power supply 1 (on the left) corresponds to the top power cord in the rear.

4. Unscrew the two captive fasteners on the front of the unit using a straight blade screwdriver.

5. Pull forward on the handle to remove the sliding tray.

6. Unscrew the four nuts securing the inner tray to the sliding tray.

7. Lift the inner tray from the sliding tray.

8. Place the new power supply inner tray assembly in the sliding tray and screw down the four nuts securing the inner tray.

9. Check to see that the fuses on the new unit are of the same type and rating as the fuses in the replaced power supply. The fuses should be 4A, 240V.

WARNING! Failure to perform Step 10 can result in serious

injury to the user or damage to the equipment.

10. Ensure that the power switch on the new power supply is turned OFF before inserting it into the enclosure.

11. Push the sliding tray back into the enclosure, being careful to align the card guides.

12. To ensure maximum safety, and to ensure that the connectors have seated properly, re-tighten the captive fasteners using a straight blade screwdriver.

13. Once the new supply is completely installed, re-insert and plug in the power cord, and turn the power switch to the ON position.

5-5

Hardware Maintenance Procedures

5.2.2 SFCS-1000 Power Supply Module Replacement

5.2.2.1 Replacing an SFCS-1000 AC Power Supply (Model A)

A model A AC power supply module for an SFCS-1000 is shown in Figure 3.2.

48V DC

5VDC OK

SHUTDOWN

CAUTION: This unit has more than one

power cord. To reduce the risk of

electric shock, disconnect two power

supply cords beCabletron servicing.

ATTENTION: Cet appareil comporte plus

d’un cordon d’alimentation. Aﬁn

de prevenir les chocs electriques,

debrancherles 2 cordons d’alimentation

avant de faire le depannage.

Retaining screws

CAUTION: Double pole/neutral fusing

F12A/250V

Ejection/insertion handle

5-6

Figure 5.2 - Model A SFCS-1000 AC Power Supply

Hardware Maintenance Procedures

The procedure for hot-swapping a model A SFCS-1000 AC power supply is as follows:

WARNING! A replacement DC power supply should

never be placed in an SFCS-1000 that already contains an AC power supply, and vice-versa. If these instructions are not heeded, there is a risk of electrical shock, danger to personal health, and serious damage to the equipment.

WARNING! It is highly recommended that you use the

included grounding strap when handling this or any other component.

1. Determine which power supply is defective by examining the power supplies themselves. A red LED or an extinguished LED indicates the failed supply. On an SFCS-1000, power supply “1” is in the slot labeled PS1 on the chassis, while power supply “2” is in the slot labeled PS2 on the chassis.

WARNING! Failure to perform Step 2 can result in serious

injury to the user or damage to the equipment.

2. Turn OFF the power switch on the front of the defective power supply. Wait for the yellow SHUTDOWN LED to extinguish before moving to Step 3.

3. Unplug and remove the power cord from the failed supply.

4. Unscrew the four retaining screws with a 3/32-inch Allen wrench and pull forward on the handle located below the power cord.

5. Remove the defective supply and prepare to install the new one.

5-7

Hardware Maintenance Procedures

WARNING! Failure to perform Steps 6 or 7 can result in

serious injury to the user or damage to the equipment.

6. Ensure that the power switch on the new power supply is turned OFF before inserting it into the enclosure.

7. Ensure that the fuses on the new unit are rated at 12.5A, 250V.

8. Carefully align the guide rails on the new AC power supply in the slot.

9. Push on the center of the front panel of the power supply to slide it back into the enclosure.

10. To ensure maximum safety and to ensure that the connectors have been seated properly, re-tighten the four retaining screws using a 3/32-inch Allen wrench.

11. Reconnect and plug in the power cord to the new power supply.

12. Turn the power switch on the new supply to the ON position.

5-8

Hardware Maintenance Procedures

5.2.2.2 Replacing an SFCS-1000 AC Power Supply (Model B)

A model B AC power supply module for an SFCS-1000 is shown in Figure 3.3.

ON/OFF Switch

Handle

100 - 120V ~ T15A 250V 200 - 240V ~ T15A 250V 50 - 60Hz

PWR

FAULT

TEMP

I LIM

CAUTION: This unit has more than one po wer cord. To reduce the risk of electric shock, disconnect two power supply cords beCabletron servicing. ATTENTION: Cet appareil comporte plus d’un cordon d’alimentation. Aﬁn de prevenir les chocs electriques, debrancher les 2 cordons d’alimentation avant de faire le depannage.

Figure 5.3 - Model B SFCS-1000 AC Power Supply

Captive fasteners

5-9

Hardware Maintenance Procedures

The procedure for replacing a model B SFCS-1000 AC power supply module is as follows:

WARNING! A replacement DC power supply should

WARNING! It is highly recommended that you use the

included grounding strap when handling this or any other component.

1. Determine which power supply is defective by examining the power supplies themselves. An extinguished “PWR OK” LED or an illuminated “FAULT” LED indicates the failed supply. On an SFCS-1000, power supply “1” is in the slot labeled PS1 on the chassis (top), while power supply “2” is in the slot labeled PS2 on the chassis (bottom).

5-10

WARNING! Failure to perform Step 2 can result in serious

injury to the user or damage to the equipment.

2. Turn OFF the power switch on the front of the defective power supply. Wait at least one (1) second after turning off the power before moving on to the next step.

3. Disconnect the AC line from the front of the defective power supply.

4. Unscrew the two captive fasteners (one on the upper, left corner of the faceplate and one on the lower, right corner of the faceplate, see Figure 3.3) using a straight blade screwdriver.

Hardware Maintenance Procedures

5. Pull forward on the power supply’s handle (located below the power switch and AC plug) to remove it from the chassis.

6. Set the failed supply aside and prepare to install the new one.

WARNING! Failure to perform Steps 7 or 8 can result in

serious injury to the user or damage to the equipment.

7. Ensure that the power switch on the new AC power supply is turned OFF before inserting the supply into the metal enclosure.

8. Check to see that the fuses on the new unit are rated at 15A, 250V.

9. Set the supply on the guide rails in the enclosure so that the supply is properly aligned in the slot. Position the supply so that the rear connectors are on top.

10. Once the rails are properly aligned, push on the handle on the front of the supply to slide it back into the chassis. Press ﬁrmly to ensure that the connectors on the rear of the supply have mated with those on the backplane.

11. To ensure maximum safety and to ensure that the connectors have mated properly, tighten the two captive fasteners on the front of the supply using a straight blade screwdriver.

12. Once completely installed, you may reconnect the AC line and turn the power switch to the ON position.

13. After a second or two, the PWR OK LED on each supply illuminates green, indicating that the supply is functioning properly.

5-11

Hardware Maintenance Procedures

5.3 SFCS-1000 Fan Tray Replacement

The SFCS-1000 has a removable fan tray with large fans that cool the switch hardware and power supply modules. Located at the base of the upright unit, the fan tray is removable from the front of the unit and is hot-swappable, meaning that it can be replaced with the SFCS-1000 under power. The procedure for replacing a fan tray is as follows:

WARNING! It is highly recommended that you use the

1. Remove the four retaining screws at the top of the fan tray with a 3/32-inch Allen wrench.

2. Remove the fan tray by pulling it away from the switch unit.

3. Set the old fan tray aside and place the new fan tray in front of the vacant slot in the SFCS-1000.

included grounding strap when handling this, or any other component.

4. Insert a new fan tray in the slot and slide it all the way into the chassis. Seat the connectors by pressing ﬁrmly on the unit (this will apply power to the fan tray).

5. Once seated, replace the four screws removed in Step 1 above. This will properly secure the unit in the chassis.

CAUTION Do not run the unit for any great length of

time without the fan tray installed or the unit will shut itself down because of an overtemperature condition.

5-12

Hardware Maintenance Procedures

5.4 Switch Control Processor Replacement

The following procedure explains how to remove an i960 switch control processor (SCP) from a switch fabric and install a new SCP.

WARNING! It is highly recommended that you use the

included grounding strap when handling this or any other component.

CAUTION Do not attempt to remove or replace an SCP

without ﬁrst removing all connections to the SCP (i.e., serial or Ethernet connections).

1. Loosen the two captive fasteners on either edge of the SCP using a straight screwdriver.

RESET

2. Pull ﬁrmly and carefully on the two captive fasteners, removing the SCP from the switch fabric as shown in Figure 3.5.

SER

ETH

PWR

NEXT SELECT

Loosen captive fasteners and pull STRAIGHT out.

Figure 5.4 - Removal of an SCP

3. Set the old SCP aside.

5-13

Hardware Maintenance Procedures

CAUTION Take care to properly align the SCP in the card

4. Insert the new SCP into the switch fabric by sliding it into the card guides.

5. Push ﬁrmly to seat the SCP so that its faceplate is ﬂush with the front panel of the switch board.

6. Re-tighten the captive fasteners with a straight screwdriver to ensure the SCP is secure.

Once the SCP has been installed and the system reboots, the PVCs will be reestablished provided that none of the network modules were replaced after the SCP was removed and provided that all of these steps have been performed properly.

guides in the following step.

5-14

5.5 Switch Board Replacement

The switch boards in the SFCS-1000 are hot-swappable, meaning that they can be removed and replaced with the chassis under power. The proper procedure for hot-swapping a switch board is as follows:

WARNING! It is highly recommended that you use the

included grounding strap when handling this, or any other component.

CAUTION Ensure that any unpopulated switch board

slots are covered with a blank panel before turning on your SFCS-1000. Operating the switch with any of these slots left open can cause a signiﬁcant temperature rise in a very short time.

Hardware Maintenance Procedures

NOTE: As a precaution, it is recommended that you

back up your CDB before performing this process. Instructions for backing up your CDB can be found in Appendix C, AMI Operation Commands, of the Cabletron ATM Switch Conﬁguration Manual.

NOTE: Only replace a switch board with another

switch board of the same type (i.e., an SFCS-1000 switch board with an SFCS-1000 switch board).

5-15

Hardware Maintenance Procedures

NOTE: To ensure that the switch will work with the

NOTE: To maintain your CDB, the SCP must be

1. Log out of all open AMI sessions on the switch board that is to be replaced.

previously established network conﬁguration, the relative position of the network modules must not change when you transfer them to the new fabric. For example, an OC-3c network module that is removed from slot A of the old switch fabric must be installed in slot A of the new switch fabric. Therefore, it is recommended that you label all network connections and network modules before removing them.

removed befor removed and it must be installed in the new fabric after the network modules have been installed.

e the network modules are

2. Remove the SCP from the old switch board using the instructions found in Section 3.4, Switch Control Processor Replacement. Place the SCP on a clean, static-free work area.

3. Label and remove all ﬁbers or coaxial cables connected to the ports on the switch board that is to be replaced. Then label and remove all network modules from the old switch board using the instructions found in Section 3.1, Network Module Replacement. Place the network modules on a clean, static-free work area.

4. Unscrew the retaining screws at the top and bottom of the switch board with a 3/32-inch Allen wrench. On an SFCS-1000, press the top black locking tab up towards the top and bottom black locking tab down towards the bottom of the chassis until they are parallel with the front panel of the switch.

5. Using the tabs as a handle, pull the switch board out of the chassis.

5-16

Hardware Maintenance Procedures

CAUTION Make sure the replacement board is properly

aligned in the slot in the next step.

6. Carefully slide the replacement board into the chassis using enough force to ensure that the connectors on the board mate with the connectors in the chassis.

7. Be sure to align the holes properly and screw the board into the chassis using the screws at the top and bottom of the board. Tighten until snug, but do not overtighten.

8. Re-install the network modules using the instructions found in Section 3.1, Network Module Replacement. Reconnect all ﬁbers or coaxial cables to the ports.

9. Re-install the SCP using the instructions found in Section 3.4, Switch Control Processor Replacement.

Once the SCP has been installed and the system reboots, the PVCs will be reestablished if all of the steps have been performed correctly and in the proper sequence.

5-17

Hardware Maintenance Procedures

5-18

CHAPTER 6 Software Upgrade Instructions

This chapter details the steps necessary to upgrade the software on your Cabletron ATM switch. Some instructions in this chapter are only necessary under certain conditions—check the following before you proceed:

• If, after performing the upgrade, you wish to continue using an older version of software on your switch, you must read Section 6.4.

• If you wish to begin using the latest version of software immediately after performing the upgrade, you can skip Section 6.4.

• If you are unable to boot your switch from its FLASH, you must follow the instructions in Section 6.5.

First, you need the upgrade ﬁle from Cabletron Systems. This ﬁle can be obtained via ftp or diskette. To obtain the ﬁle via ftp, you must have ftp access. To obtain the ﬁle from diskette, you will need the distribution diskettes from Cabletron Systems.

NOTE: Sections 6.1 - 6.4 detail how to upgrade an

SFCS200WG, SFCS-200BX or an SFCS-1000.

NOTE: You will also need a UNIX workstation with

at least 5 Mbytes of free disk space. If you are upgrading from the distribution diskettes, the UNIX workstation must also be equipped with a ﬂoppy drive. The UNIX workstation must be connected (via ATM or Ethernet) to the SCP being upgraded.

CAUTION As a precaution, it is recommended that you

back up your CDB before performing the upgrade process. For more information, see the section entitled, “Backing Up the CDB” in Appendix C of the Cabletron ATM Switch Conﬁguration Manual.

NOTE: Each of the SCPs on an SFCS-1000 must be

upgraded individually.

6-1

Software Upgrade Instructions

6.1 Obtaining the Software Upgrade File via Diskette

Using the Cabletron Systems distribution diskettes, the upgrade software must be installed on a workstation attached (via Ethernet or ATM) to the SCP being upgraded. The ﬁrst disk contains a part of the distribution software, as well as a script that extracts the remaining software from the rest of the disks and builds the upgrade distribution on the workstation. The ﬁrst disk can be extracted using the tar command:

where <device> is the block device name of the ﬂoppy drive. This disk should then be ejected from the ﬂoppy drive. On a SunOS system, the following command will eject a ﬂoppy disk:

where <device> is the block device name of the ﬂoppy drive. On other operating systems, there may be a different command for ejecting a ﬂoppy disk or there may be a manual eject button. If there is a manual eject button, eject the disk and proceed. If there is a UNIX command for ejecting the ﬂoppy, use that command to eject the ﬂoppy and proceed.

At this point, two ﬁles should have been created: fore_extract and

SFCS-200BX_<version> (where <version> is the new software version). The fore_extract ﬁle is the script that will extract the ﬁles from the other ﬂoppies.

If there is a command to eject a ﬂoppy on your system, set the following environment variable so the fore_extract script can properly eject the ﬂoppies:

tar -xvf <device>

eject <device>

6-2

setenv FORE_EJECT <eject_command> (for csh)

FORE_EJECT<=eject_command>;export FORE_EJECT (for sh)

On a Sun running SunOS 4.1.x, set the following environment variable so the fore_extract script can properly eject the ﬂoppies:

setenv FORE_EJECT eject

Software Upgrade Instructions

Execute the fore_extract script with the following command:

./fore_extract <device>

Once again, <device> is the block device name of the ﬂoppy drive. You will be asked to insert the remaining disks in sequence. If these steps are performed correctly, something similar to the following should appear on the screen:

filename: ASX-200BX_<version> directory: <directory from which it was extracted>

The fore_extract script will create a ﬁle called ASX-200BX_<version> in the current directory. This is the ﬁle that the SCP will use to upgrade its software. You will need to provide this ﬁlename and path later during the upgrade process.

6-3

Software Upgrade Instructions

6.2 Performing the Software Upgrade

To perform the software upgrade, you will use the operation upgrade command in AMI. The underlying ﬁle transfer mechanism used by this command is TFTP. If TFTP is to run properly between two machines, the ﬁle(s) being transferred must reside in a speciﬁc directory called “tftpboot.” TFTP operates this way for security reasons.

When the operation upgrade command is issued in AMI, the switch starts up TFTP to the host, which searches for the ﬁle requested. The host, which is running TFTP, looks for the ﬁle in /tftpboot. When creating the path and ﬁlename to transfer the ﬁle to the switch, the host appends “/tftpboot” in front of the path name that appears after the colon (:) in the operation upgrade command.

For example, issuing operation upgrade 169.144.3.54:asx-scp_4.0.0_1.3 will cause TFTP to transfer the ﬁle “/tftpboot/asx-scp_4.0.0_1.3.” For this reason, it is imperative that you place the upgrade ﬁle in the /tftpboot directory on the workstation to which you downloaded/extracted the ﬁle. If this directory does not already exist, create it by issuing the following command on the workstation:

mkdir /tftpboot

Now move the upgrade ﬁle to the /tftpboot directory with the following command:

mv <ﬁlename> /tftpboot

Once you have moved the software upgrade ﬁle to the /tftpboot directory on your workstation, you need to invoke the upgrade process on the SCP. Log in to AMI and enter the following parameters at the localhost::> prompt:

operation upgrade ?

This will display the speciﬁc parameters that you need to enter as follows:

upgrade <remotehost>:<full path to remoteﬁle>

Enter the remote machine name or IP address of the workstation to which you downloaded/extracted the upgrade ﬁle in the remotehost ﬁeld. In the full path to remoteﬁle ﬁeld, enter ONLY the ﬁlename of the upgrade ﬁle (which should be in the /tftpboot directory on the remote host).

6-4

Software Upgrade Instructions

NOTE: If you obtained the upgrade ﬁle via ftp, full

path to remoteﬁle is the name of the

uncompressed ﬁle. If you obtained the ﬁle from diskette, full path to remoteﬁle is the path name printed during extraction.

For example, if you used ftp, you would enter something similar to the following:

operation upgrade 169.144.3.54:asx-scp_4.0.0_1.3

If you extracted the ﬁle from diskette, you would enter something similar to the following:

operation upgrade 169.144.3.54:ASX-200BX_4.0.0_1.3

In either case, you should receive messages similar to the following:

Received 688128 bytes in 5.3 seconds upgrade successful

Reboot the switch[y]?

NOTE: You have an important decision to make now.

At this point, the boot pointer will have the new software’s ﬁlename in it. A reboot will load the new version of software to FLASH, and the switch will be running the upgraded version when it comes up. If you wish, however, you can still run the old version of software. If you want to use the old version and change to the new version at a later time, enter n at the reboot prompt and follow the instructions in the next section, “Changing between Multiple Versions of Software.”

6-5

Software Upgrade Instructions

To use the new version of software that you have just loaded, type y and press <ENTER> or simply press <ENTER> to reboot.

Reboot the switch[y]? y

Once the SCP reboots, you will be closed out of all active sessions on the SCP. You will need to log in to AMI again if you want to begin another session.

NOTE: If something went wrong during the upgrade

If the upgrade is unsuccessful or if you have any other problems with the upgrade, please contact Cabletron Systems’ Technical Support.

process, a new ﬁle named “upgrade” will appear in the FLASH ﬁle system and you will not be prompted with the “Reboot the switch [y]?” message.

6-6

Software Upgrade Instructions

6.3 Changing between Multiple Versions of Software

It is possible to select between multiple versions of installed software at any time (not just during an upgrade procedure). You can display all the versions that are installed by typing the following:

localhost::operation flash> dir

FT330.35 CURRENT FT340.11

However, in this list, CURRENT is simply a pointer to the version that will be used as the current switch software AFTER a reboot. To display the version to which CURRENT is pointing, as well as all the versions that are installed, type the following:

localhost::operation> version Software versions installed : FT330.35 FT340.11 Current software version is FT330.35

Notice that no parameter for version was speciﬁed above. If no parameter is speciﬁed, it will list the current and installed versions, but will not change anything.

In this example, to change the current version of software from FT330.35 to FT340.11, type the following:

localhost::operation> version FT340.11 Current software version is FT340.11 Software versions installed : FT330.35 FT340.11

NOTE: By using the operation version command and

specifying a version, you change the version to which CURRENT is pointing.

6-7

Software Upgrade Instructions

At this point, the switch is still running FT330.35, but CURRENT is pointing to FT340.11. To make the change complete, enter the following:

localhost::operation> reboot

Are you sure you want to reboot this switch [n]? y

When the SCP reboots, it will look to see which version that CURRENT is specifying. In this case, it will see FT340.11 and use that version.

6-8

Software Upgrade Instructions

6.4 Using bootp to Download Software to the Switch

NOTE: Section 6.5 needs to be performed only if your

SCP fails to boot from its FLASH.

6.4.1 Overview

Each SCP on a Cabletron switch comes with its hardware address (Ethernet MAC address) burned in from the factory, but it does not come preconﬁgured with an IP address. Any time that the switch is turned on, the SCP attempts to boot from its FLASH memory.

If an SCP can not boot from its FLASH (e.g., the FLASH has recently been initialized or the switch software image in the FLASH is corrupt), it attempts to locate a bootp server on its Ethernet interface.

The SCP broadcasts its Ethernet MAC address in a bootp datagram. Bootp servers on the network that receive that broadcast look up that MAC address in their bootptab ﬁle. If they ﬁnd an entry for that MAC address, they broadcast a reply to the SCP that contains a pointer to a switch software image ﬁle residing on the bootp server.

When the SCP sees the bootp reply, it initiates a tftp session with the bootp server using the path and ﬁlename returned in the datagram from the server.

6.4.2 Setting Up Your bootp Server

If the process described above is to happen, you need to provide the bootp server with the SCP’s Ethernet MAC address and the path to the switch software image.

Before the bootp server will work, you must add or uncomment the following line in /etc/inetd.conf:

bootps dgram udp wait root /etc/bootpd -d4 /etc/bootptab

with the bootpd and the bootptab ﬁles in the /etc directory. Also, the following line must appear in /etc/services:

bootp 67/udp bootps

6-9

Software Upgrade Instructions

Before any of the above changes can take effect, inetd must re-read the conﬁguration ﬁle.

NOTE: If you need to set up a tftpboot server, as

Determine the process number of inetd by entering the following:

host: ps -aux | grep inetd

Something similar to the following will be displayed:

root 216 0.0 0.0 48 0 ? IW Jan 27 0:14 inetd

where 216 represents the process number of inetd. Now that you know the process number, enter the following command line to

make inetd re-read its conﬁguration ﬁle:

described in Section 6.5.4, the following process is not necessary at this time. Instead, make inetd re-read its conﬁguration ﬁle after setting up your server.

6-10

host: kill -HUP 216

6.4.3 Adding an Entry for Your Switch in the bootptab File

On the workstation that is the bootp server, add the following lines to /etc/bootptab:

NOTE: The lines given here are an example. See the

descriptions that follow for an explanation of the values that you need to enter on your SCP.

myswitch:\

:ht=ether:\ :ha=002048200097:\ :sm=255.255.255.0:\ :bf=upgrade-ﬁle:

Software Upgrade Instructions

NOTE: Make sure the last line added to bootptab

ends in a colon (:) and not a backslash (\). Otherwise, that line will merge with the next entry, causing your switch to cycle in its attempts to ﬁnd a bootp server.

The variables in the previous example are deﬁned as follows:

myswitch Indicates the name you have assigned to your SCP.

ht Indicates the hardware type. For the purposes of switch

software image loading, this is ether (stands for Ethernet).

ha Indicates the hardware address. This is the Ethernet

MAC address of your SCP that is burned in from the factory. If you connect a terminal device to the SCP’s serial port, you will see the Ethernet MAC address displayed during the EPROM boot sequence.

sm Indicates the subnet mask. This is the subnet mask for

your network.

bf Indicates the bootﬁle. This is <your boot image ﬁle

name>.

NOTE: For more information about bootp, please

refer to RFC-1048 and RFC-951.

Once these lines are added, the bootp server will be able to tell your SCP where to ﬁnd the switch software image to be downloaded. The next step in performing the upgrade is to set up a workstation as a tftpboot server and put the upgrade ﬁle (the line indicated by bf in the previous example) there.

6-11

Software Upgrade Instructions

6.4.4 Setting Up a tftpboot Server

To set up a tftpboot server, on a SunOS 4.1.x system, perform the following steps:

NOTE: This procedure only has to be done the ﬁrst

1. In /etc/inetd.conf, uncomment the last line shown below so that the ﬁle

appears as follows:

# # Tftp service is provided primarily for booting. Most sites # run this only on machines acting as “boot servers.” # Since these can be security holes, they are commented out by default. # tftp dgram udp wait root /usr/etc/in.tftpd in.tftpd /tftpboot

time that the switch is turned on and each SCP is upgraded. The next time that the software is upgraded, put the upgrade ﬁle in /tftpboot.

6-12

2. Add the following line to /etc/services:

tftp 69/udp

3. Set up the tftpboot directory with the following command lines:

host: mkdir /tftpboot host: cp <upgrade-file> /tftpboot

4. At the root level, determine the process number of inetd by entering the

following:

host: ps -aux | grep inetd

Something similar to the following will be displayed:

root 216 0.0 0.0 48 0 ? IW Jan 27 0:14 inetd

where 216 represents the process number of inetd.

5. Enter the following command to make inetd re-read its conﬁguration ﬁle:

host: kill -HUP 216

APPENDIX A Troubleshooting

The troubleshooting tests detailed in this appendix will clearly indicate and identify the most common problems in establishing ATM networks. Therefore, before calling Cabletron Systems’ Technical Support, perform these tests to correct or at least pinpoint the problem.

If you need to call Technical Support, please have the results of these tests ready, in addition to the information requested in Section A.3, when reporting your problem.

A.1 Adapter Hardware Troubleshooting

The ﬂowchart in Figure A.1 illustrates the tests used to check the basic hardware functionality of a Cabletron Systems adapter, with the adapter card isolated from the network. The tools used to perform the tests are provided by Cabletron Systems and the computer hardware vendor. Each of the tests, indicated by the diamond-shaped blocks in Figure A.1, is described individually in the following subsections.

A-1

Troubleshooting

Start

Looptest

passed?

Self-test

passed?

Firmware

download

successful?

Run netstat -i.

Has driver detected

presence of

HW?

ﬁrmware

running

correctly?

Test the

software as in

Figure A.3.

Tried

reseating the

board?

Call Cabletron.

Tried

reseating the

board?

Tried

rebooting the

system?

Reseat the

board.

Call Cabletron.

Reseat the

board.

Call Cabletron.

Reboot the

system.

Call Cabletron.

A-2

Run atmstat -d.

Is the physical link

OK?

Call Cabletron.

Is ﬁber bad?

Change

ﬁber.

Call Cabletron.

Figure A.1 - Adapter Hardware Troubleshooting Flowchart

A.1.1 Run Looptest

To determine if an interface is functioning properly, run the looptest utility on a host that has been disconnected and isolated from the network.

NOTE: Before running looptest, the Receive and

The looptest utility uses Cabletron Systems’ ATM user-level Application Programming Interface. For proper operation, looptest requires read/write access to the ATM device. To run looptest, enter the following command at the system prompt in the working directory:

Troubleshooting

Transmit connectors on the backplate of the card must be connected to each other using a short loop of ﬁber-optic cable. This ﬁber should remain on throughout this test.

looptest fa0

where fa0 is the default device name for a single ATM adapter. The looptest utility veriﬁes that the board of an adapter is operating cor-

rectly. Correct operation means that all of the following conditions are true:

1. The self-test has been passed successfully.

2. The ﬁrmware has been downloaded successfully.

3. The driver has detected the existence of the hardware.

4. The ﬁrmware is running.

5. The physical link is up.

If looptest passes, then the board hardware of the adapter is OK. The next step is to test the software as shown in Figure A.3.

If looptest fails, the point of failure will be indicated by messages generated for each of the ﬁve items above. Refer to the following subsections for instructions about testing the individual items.

A-3

Troubleshooting

A.1.2 Check Self-Test (Automatically Performed)

During a system boot, the ATM adapter automatically performs a self-test of the hardware, running a low-level diagnostic which checks memory read/write capability. Upon completion of the self-test, a message is printed to the console of the workstation indicating whether or not the hardware failed.

If the self-test is successful, proceed to the instructions regarding the ﬁrmware download as described in the next subsection.

If the self-test fails, reseat the board by performing the following steps to ensure that failure was not due to improper insertion of the board:

1. Halt the system, being sure to follow the procedures outlined in Chapter 2 of the User’s Manual for the adapter.

2. Open the computer as shown in Chapter 2 of the User’s Manual for the adapter, and reseat the board.

3. Reboot the system.

If the board still fails after a reseat, then it should be returned for repair. Call Cabletron Systems’ Technical Support for further assistance.

A-4

A.1.3 Firmware Download (Automatically Performed)

Before operating as an ATM interface, the ﬁrmware is automatically downloaded from the system RAM to the onboard i960 processor during host system boot. A message similar to: “XXX-200 initializing...” is displayed on the console, indicating that the board is being initialized. When the initialization is complete, success is indicated with the message “done” and failure is indicated with the message “failed”.

If the download is successful, check to see if the hardware has been detected by the driver as described in the next subsection.

If the ﬁrmware failed to download, then there is most likely a hardware problem. Call Cabletron Systems’ Technical Support for further assistance.

Cabletron Systems SFCS-200BX, SFCS-1000, SFCS-200WG User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Notice

PREFACE

Technical Support

Typographical Styles

Important Information Indicators

Laser Warning

Safety Agency Compliance

Safety Precautions

Symbols

Placement of a Cabletron Systems Product

Power Cord Connection

Introduction

1.1 Overview of the ATM Standard

1.2 Hardware Description

1.2.1 Front Panel Description

1.2.3 9A000 and SFCS Series Switch Board

1.2.4 Switch Control Processor

1.2.5 9A000 and SFCS Series Network Modules

1.2.6 Environmental Information

1.2.7 Standards Compliance

1.2.8 Safety Compliance

1.2.9 Emissions Compliance

1.2.10 Electromagnetic Compatibility (EMC)

1.3 Software Description

1.3.1 Switch Control Software

CHAPTER 2 Installing the 9A000

2.1 Installing the 9A000

2.2 The Reset Switch

CHAPTER 3 Switch Hardware

3.2 Switch Hardware Components

3.2.1 Switch Board

3.2.2 Switch Control Processor

3.2.2.1 i960 Switch Control Processor

3.2.3 Network Modules

3.2.3.1 Port Numbering

3.2.4 Power Supply Modules

3.2.4.1 SFCS-200BX AC Power Supply

3.2.4.2 SFCS-1000 AC Power Supply (Model A)

3.2.4.3 SFCS-1000 AC Power Supply (Model B)

3.2.5 SFCS-1000 Fan Tray

3.2.6 SFCS-1000 Temperature Sensing

3.2.7 SFCS-1000 Common Equipment Card (CEC)

3.2.7.1 CEC Front Panel

3.2.7.2 Alarm Relay Contacts

3.2.7.3 CEC Status LEDs

3.2.7.4 Ethernet Port

CHAPTER 4 Switch Setup

4.1 Introduction

4.2 Unpacking

4.2.1 Inventorying the Unit

4.3 Electrical Considerations

4.4 Rack-Mounting an SFCS-200BX

4.4.1 Required Tools

4.4.2 Installing the Rack-mount Brackets

4.5 Rack-Mounting an SFCS-200WG

4.5.1 Required Tools

4.5.2 Installing the Rack-mount Brackets

4.6 Rack-Mounting an SFCS-1000

4.6.1 Installing the SFCS-1000

4.7 Installing the Serial Cable

4.8.1 Modem Parameters

4.10 AMI Security

4.11 Subsequent Operation

4.12 Verifying the Installation

4.13 Product Registration Information

5.1 Network Module Replacement

5.1.1 Overview

5.1.2 Multicast Mode

5.1.3 Hot-swapping Network Modules

5.2 Power Supply Module Replacement

5.2.1 SFCS-200BX Power Supply Module Replacement

5.2.1.1 Replacing an SFCS-200BX AC Power Supply

5.2.2 SFCS-1000 Power Supply Module Replacement

5.3 SFCS-1000 Fan Tray Replacement

5.4 Switch Control Processor Replacement

5.5 Switch Board Replacement