Olicom 8600, 8605 User Manual

DOC-6951/1.2

CrossFireTM 8600/8605
Token-Ring Switches

Guide to Operations

CrossFireTM 8600/8605

Token-Ring Switches

Guide to Operations

ii

CLASS 1 LASER PRODUCT

Trademarks

GoCard and the Oli com clasped hands l ogo are registered trademarks of Olicom A/S. CellDriver,
ClearServer, ClearSession, ClearSight, CrossFire, LANscout, PowerMACH, RapidFire and RapidLAN
are trademarks of Olicom A/S. C learCare, Clear Partner, ClearS tep and Expert Wat ch are service marks
of Olicom A/S. Olicom is a registered trademark. Other brand and product names are trademarks,
registered trademarks, service mar ks or registered service marks of their res pective holders.

Copyrights

Olicom A/S reserves the r ight to modify the i nf ormation given in this publication without prior notice.
The warranty terms and conditions applicable for your purchase of this equipment are given at the time
of purchase. Please consult your place of purchase for details.

Publicat ion: DOC-6951 v. 1.2
Part Number : 710001641

© Copyright Olicom A/S,

All rights reserved

transmitted in any form or by any means, without the prior written permission of the publisher.

Denmark, November 1998

. No part of this publication may be reproduced, stor ed in a retrieval system, or

FCC Compliance

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to Part 15 of th e FCC Ru les. T hes e limit s are des ign ed to pr ovi de reaso nab le prot ecti on ag ainst harmf ul
interference when the equipment is operated in a commercial environment. This equipment generates,
uses and can rad iate radio frequency energy and, if not installed and used in accordance wit h the
instructi on manual, may cause har m f ul interference to radio communicati ons. Operation of this
equipment in a re sidential area is likely to cause harmful in terference in which ca s e the user will be
required to correct the interference at his own expens e.

Warning:

interference in which case the user may be re quired to take adequa te measures.
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 interfer e nce that may cause undesired operation.

This is a Class A product. In a domestic environment this product may cause radio

Declaration of Conformity

We Olicom A/S

Nybrovej 114
DK-2800 Ly ngby
Denmark

declare und er our sole responsibility that the pr oducts

CrossFire 8600 Token-Ring Switch and/or CrossFire 8605 Token-Ring Fiber Switch
to which this declaration relates are in conformity with the following standards or other normative
documents

EN 50082-1

EN 55022

EN 60950 including Amendments

EN 60825-1
following the provisions of 89/336/EEC Dir ective and 73/2 3/EEC Directive.

CrossFire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641

Modifications

If the device is changed or modified w ithout the ex press approval of Olicom A/S the user may void his
or her authority to operate the equipment.

Safety No tic e s

➽

To avoid shock hazard, do not connect or disconnect any cables or perform inst allation,

Danger:

maintenance, or reconfiguring of the CrossFire 8600 Token-Ring Switch and/or the CrossFire 8605
Token-Ring Fiber Switch during an electrical storm.

iii

➽

➽
➽

To avoid the possibility of electrical shock, switch power off and unplug the power cord from

Danger:

the outlet before detaching the power cord from th e CrossFire 8600 Token-Ring Switch and/ or the
CrossFire 8605 Token-Ring Fiber Switch.

Do not open the CrossFire 8600 Token-Ring Switch and/or the CrossFire 8605 Token-Ring

Danger:

Fiber Swi tch. Dangerous voltages insid e.

To avoid shock hazard the power cord must be connected to a prop erly wired and earthed

Danger:

receptacl e. Any equipment to which the CrossFir e 8600 Token-Ring Switch and/or the CrossFire 860 5
Token-Ring Fiber Switch will be attached must also be connected to properly wired and earthed
receptacles.

Caution:

Observe the following pow er cable considerations before you begin installation of the CrossFire 8600
Token-Ring Switch and/or the CrossFire 860 5 Token-Ring Fiber Switch.

1. The socket out let shall be installed near the equipment and shall be easily accessible.

2. To prevent electrical shock, the power cord set used must comply with national regulations.
2a. The female rece ptacle of the cord must meet CEE-22 requirements .
2b. The cord must be UL listed, CSA lab elle d , and cons ist of th ree condu cto rs with a maxi mum

of 15 feet in length.
Type SVT or SJT cord sets shall be used for units which stand on a desk or tab le. Type SJT
cord sets sh all be used for units which stand on floor.

2c. The male plug fo r un its operating at 115 VA C shall consist of a parallel blade, gro unding

type attach ment plug rated 15 A, 125 VAC.
The male plug fo r units operating at 230 V A C s hall consist of a tandem blade, grounding
type attach ment plug rated 15 A, 250 VAC.
The male plug fo r units operating at 230 V A C (outside of the United States and Canada) s hall
consist of a grounding type attachment plug rat e d 15 A, 250 VAC and have the appropriate
safety approvals for the countr y in which the equipment will be install ed.

➽

Caution:

Switch while you are installing the unit to avoid dropping it on the floor or any equipment beneath it in
the rack . The C rossF ire 860 0 Tok en- Ri ng Sw itc h un it and th e Cr ossF ire 86 05 Tok en- Ring Fi ber Swi tch
unit each weighs approximately 8.8 kg (19.4 lbs).

Support the CrossFire 8600 Token-Ring Switch and/or t he CrossFire 8605 Token-Ring Fiber

➽

Warning:

local area netw orkin g ( L A N ) .

CrossF ire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641

All RJ45 connectors must only be connected to safety extra low voltage (SELV) circuits like

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CrossFire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641

Table of Contents

1. Overview and Specifications 1

Switching Technology . . . . . . . . . . . . . . . . . . . . . . . 2

Switch of Switches . . . . . . . . . . . . . . . . . . . . . . . 2

Switch of Servers. . . . . . . . . . . . . . . . . . . . . . . . 3

Switch of Hubs . . . . . . . . . . . . . . . . . . . . . . . . . 3

Switch of Desktops. . . . . . . . . . . . . . . . . . . . . . . 3

Switch of Floors and Buildings . . . . . . . . . . . . . . . . . 4

Switch of Routers. . . . . . . . . . . . . . . . . . . . . . . . 4

Physical Characteristics . . . . . . . . . . . . . . . . . . . . . . 5

Out-of-Band Management (OBM) . . . . . . . . . . . . . . . 5

Token-Ring Ports. . . . . . . . . . . . . . . . . . . . . . . . 6

Switched Port Analyzer. . . . . . . . . . . . . . . . . . . . . 6

Universal Expansion Slots and Modules . . . . . . . . . . . . 7

Reset Button . . . . . . . . . . . . . . . . . . . . . . . . . . 7

System Request Button . . . . . . . . . . . . . . . . . . . . 7

Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Status and Activity LEDs . . . . . . . . . . . . . . . . . . . . 8

Features and Specifications . . . . . . . . . . . . . . . . . . . 10

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Specifications. . . . . . . . . . . . . . . . . . . . . . . . . 12

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2. Switch Theory of Operation 17

How the CrossFire 8600 and the CrossFire 8605 Works . . . . 17

Multiple Simultaneous Conversations . . . . . . . . . . . . 18

Low Latency . . . . . . . . . . . . . . . . . . . . . . . . . 1 9

Address Management . . . . . . . . . . . . . . . . . . . . 19

Multiple Bridging Modes . . . . . . . . . . . . . . . . . . . 20

Filtering. . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Congestion Control. . . . . . . . . . . . . . . . . . . . . . 2 3

Three Switching Modes . . . . . . . . . . . . . . . . . . . 23

Token-Ring Port Operation Modes. . . . . . . . . . . . . . 24

RI/RO-Like Connection. . . . . . . . . . . . . . . . . . . . 24

Transmission Priority Queues . . . . . . . . . . . . . . . . 25

CrossLink Connections. . . . . . . . . . . . . . . . . . . . 2 5

Spanning Tree Protocol Support . . . . . . . . . . . . . . . 2 5

VLAN Support . . . . . . . . . . . . . . . . . . . . . . . . 26

Management . . . . . . . . . . . . . . . . . . . . . . . . . 2 7

RMON Support. . . . . . . . . . . . . . . . . . . . . . . . 28

Built-in Port Counters. . . . . . . . . . . . . . . . . . . . . 29

Stackable Architecture . . . . . . . . . . . . . . . . . . . . 30

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Optional Redundant Power Supply . . . . . . . . . . . . . .30

Benefits of the CrossFire 8600 and the CrossFire 8605. . . . . .32

3. Preparing for Installation 43

Safety Recommendations . . . . . . . . . . . . . . . . . . . . .43

Safety with Electricity . . . . . . . . . . . . . . . . . . . . .43

Preventing Electrostatic Discharge Damage . . . . . . . . .45

Site Requirements. . . . . . . . . . . . . . . . . . . . . . . . .46

Environment . . . . . . . . . . . . . . . . . . . . . . . . . .46

Chassis Accessibility . . . . . . . . . . . . . . . . . . . . .46

Cooling and Airflow . . . . . . . . . . . . . . . . . . . . . .46

Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

Unpacking and Inspecting . . . . . . . . . . . . . . . . . . . . .48

Rules to Remember . . . . . . . . . . . . . . . . . . . . . . . .49

Frame Length Limit . . . . . . . . . . . . . . . . . . . . . .49

Cables and Distances between Devices . . . . . . . . . . .49

Sample Applications for the CrossFire 8600 and

the CrossFire 8605 . . . . . . . . . . . . . . . . . . . . . . . .50

Important Management Considerations . . . . . . . . . . . .54

4. Installation 55

Required Network Preparation - Frame Length Limit . . . . . . .55

Installation Summary . . . . . . . . . . . . . . . . . . . . . . .56

Unpacking Instructions. . . . . . . . . . . . . . . . . . . . . . .57

Materials Needed for Installation . . . . . . . . . . . . . . . . .57

Installing a Universal Expansion Module . . . . . . . . . . . . .58

Mounting the Chassis . . . . . . . . . . . . . . . . . . . . . . .59

Rack or Cabinet Mounting. . . . . . . . . . . . . . . . . . .59

Table-Mounting . . . . . . . . . . . . . . . . . . . . . . . .60

Cabling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

Connecting Devices to the Token-Ring Ports . . . . . . . . .61

Connecting Devices to the Token-Ring Ports

Using Building Wiring . . . . . . . . . . . . . . . . . . . . .62

Checking the Installation. . . . . . . . . . . . . . . . . . . . . .63

Applying Power . . . . . . . . . . . . . . . . . . . . . . . . . .64

Control Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . .66

Back Panel. . . . . . . . . . . . . . . . . . . . . . . . . . .68

5. Connecting a Network Management Console 69

Connecting the Console . . . . . . . . . . . . . . . . . . . . . .69

Communication Problems . . . . . . . . . . . . . . . . . . .71

Diagnostic Screen . . . . . . . . . . . . . . . . . . . . . . .72

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6. Switch Configuration 75

General Guidelines. . . . . . . . . . . . . . . . . . . . . . . . 76

Navigating within the Menus . . . . . . . . . . . . . . . . . 77

Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Configuration.... . . . . . . . . . . . . . . . . . . . . . . . 78

Statistics... . . . . . . . . . . . . . . . . . . . . . . . . . . 7 8

Download/Upload... . . . . . . . . . . . . . . . . . . . . . 78

Reset.... . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 8

Exit Console . . . . . . . . . . . . . . . . . . . . . . . . . 78

Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . 79

Switch Configuration Screen . . . . . . . . . . . . . . . . . . . 81

Stack Configuration Screen . . . . . . . . . . . . . . . . . 84

Module Information Screen. . . . . . . . . . . . . . . . . . 85

VLAN Configuration . . . . . . . . . . . . . . . . . . . . . . . 87

VLAN Configuration Menu . . . . . . . . . . . . . . . . . . 88

VLAN Configuration Screen . . . . . . . . . . . . . . . . . 8 9

VLAN Param e te r C o n figuration fo r T r C RF Screen. . . . . . 90

VLAN P a rameter C o n figuration for T r BRF Scre e n . . . . . . 92

Local VLAN Port Configuration Screen . . . . . . . . . . . 93

IP Configuration Screen . . . . . . . . . . . . . . . . . . . . . 9 4

BootP Requests and Parameters . . . . . . . . . . . . . . 96

SNMP Configuration Menu. . . . . . . . . . . . . . . . . . . . 9 7

Spanning Tree Protocol . . . . . . . . . . . . . . . . . . . . . 97

IEEE 802.1D Spanning Tree Protocol (STP). . . . . . . . . 9 8

Spanning Tree for TrBRF Screen . . . . . . . . . . . . . . 99

Spanning Tree for TrCRF Screen . . . . . . . . . . . . . . 10 1

Port Spanning Tree Parameters Screen . . . . . . . . . . .103

Current Spanning Tree Information Screen . . . . . . . . .104

Port Configuration Screen . . . . . . . . . . . . . . . . . . . .105

Switched Port Analyzer Menu . . . . . . . . . . . . . . . . . .109

CrossLink. . . . . . . . . . . . . . . . . . . . . . . . . . . . .109

CrossLink Menu . . . . . . . . . . . . . . . . . . . . . . .111

CrossLink Configuration Screen . . . . . . . . . . . . . . . 112

Setting up a CrossLink . . . . . . . . . . . . . . . . . . . .113

Current CrossLink Information Screen. . . . . . . . . . . .114

Address Filtering . . . . . . . . . . . . . . . . . . . . . . . . .115

Filters and Port Security Menu . . . . . . . . . . . . . . . .116

Configure Filters Screen . . . . . . . . . . . . . . . . . . .117

Configure Port Security Mode Screen . . . . . . . . . . . .119

View Port Filters Screen . . . . . . . . . . . . . . . . . . .120

Protocol Filters Menu. . . . . . . . . . . . . . . . . . . . .121

Protocol Class Assignment Screen . . . . . . . . . . . . . 122

Port Filtering Attributes Screen . . . . . . . . . . . . . . . .12 3

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Address Aging . . . . . . . . . . . . . . . . . . . . . . . . . . 125

Address Aging Menu . . . . . . . . . . . . . . . . . . . . 126

Port Address Table Aging Screen. . . . . . . . . . . . . . 127

Master Address Table Aging Screen . . . . . . . . . . . . 128

Password Menu . . . . . . . . . . . . . . . . . . . . . . . . . 129

Console/Telnet Sessions . . . . . . . . . . . . . . . . . . . . 130

Console Configuration Menu . . . . . . . . . . . . . . . . 130

Serial Link Configuration Screen . . . . . . . . . . . . . . 131

Creating a Console Session Using a Modem . . . . . . . . 132

Stopping the Console Session. . . . . . . . . . . . . . . . 132

Telnet Configuration Screen. . . . . . . . . . . . . . . . . 133

Telnet Sessions Screen . . . . . . . . . . . . . . . . . . . 134

Starting the Telnet Session . . . . . . . . . . . . . . . . . 135

Stopping the Telnet Session. . . . . . . . . . . . . . . . . 135

Involuntary Termination of the Telnet Session . . . . . . . 135

Download/Upload Menu . . . . . . . . . . . . . . . . . . . . . 137

Serial Link Download Screen . . . . . . . . . . . . . . . . 138

TFTP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

TFTP Download/Upload Screen. . . . . . . . . . . . . . . 139

Reset Screen . . . . . . . . . . . . . . . . . . . . . . . . . . 142

7. Monitoring the Network with the Console 145

Navigating Within the Menus . . . . . . . . . . . . . . . . . . 146

Statistics Menu. . . . . . . . . . . . . . . . . . . . . . . . . . 147

Switch Statistics Screen . . . . . . . . . . . . . . . . . . . 148

Port Status Screen. . . . . . . . . . . . . . . . . . . . . . 150

Port Statistics Menu . . . . . . . . . . . . . . . . . . . . . 152

General Statistics Screen . . . . . . . . . . . . . . . . . . 153

802.5 Statistics Screen . . . . . . . . . . . . . . . . . . . 156

802.5 State Information Screen . . . . . . . . . . . . . . . 159

802.5 DTR MAC Information Menu . . . . . . . . . . . . . 160

TXI Information Screen . . . . . . . . . . . . . . . . . . . 161

Station-CPort Information Screen . . . . . . . . . . . . . . 163

Address Tables Menu . . . . . . . . . . . . . . . . . . . . 165

Master Address Table Screen. . . . . . . . . . . . . . . . 166

Master Route Descriptor Table Screen . . . . . . . . . . . 168

VLAN Address Table screen . . . . . . . . . . . . . . . . 170

VLAN Route Descriptor Table Screen. . . . . . . . . . . . 171

Current Spanning Tree Information Screen . . . . . . . . . 172

Current Spanning Tree Information for a TrCRF Screen . . 175

VLAN Statistics . . . . . . . . . . . . . . . . . . . . . . . 178

VLAN Statistics Screen for TrCRF. . . . . . . . . . . . . . 178

VLAN Statistics Screen for TrBRF. . . . . . . . . . . . . . 179

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Diagnostic Test Results Screen . . . . . . . . . . . . . . .18 0

Message Log Information Screen . . . . . . . . . . . . . .181

Display Summary Screen . . . . . . . . . . . . . . . . . .182

8. Monitoring the Network with SNMP 183

SNMP Setup . . . . . . . . . . . . . . . . . . . . . . . . . . .183

IP Configuration Screen . . . . . . . . . . . . . . . . . . . . .18 3

SNMP Configuration . . . . . . . . . . . . . . . . . . . . . . .184

SNMP Configuration Screen . . . . . . . . . . . . . . . . .184

Community Strings Screen. . . . . . . . . . . . . . . . . .185

Trap Receivers Screen. . . . . . . . . . . . . . . . . . . .18 7

List of Supported Traps from a Switch . . . . . . . . . . . . 188

9. Monitoring Port Traffic 193

10. Troubleshooting 195

Obtaining Service . . . . . . . . . . . . . . . . . . . . . .195

Troubleshooting in a Network . . . . . . . . . . . . . . . .19 5

Start of Troubleshooting Process . . . . . . . . . . . . . .19 5

Choosing a Troubleshooting Procedure . . . . . . . . . . .196

11. Getting in Touch with Technical Support 201

Before You Contact Olicom Technical Support . . . . . . . . . 201

Hotline Support. . . . . . . . . . . . . . . . . . . . . . . . . .201

Fax Support . . . . . . . . . . . . . . . . . . . . . . . . . . .20 2

Bulletin Board Service . . . . . . . . . . . . . . . . . . . . . .202

Standard Modem Requirements . . . . . . . . . . . . . . . 202

ISDN Modem. . . . . . . . . . . . . . . . . . . . . . . . .202

Internet E-Mail . . . . . . . . . . . . . . . . . . . . . . . . . . 203

Anonymous Internet FTP Server. . . . . . . . . . . . . . . . .203

Internet World Wide Web Server (WWW) . . . . . . . . . . . .203

Olicom Support WEB. . . . . . . . . . . . . . . . . . . . . . .203

Problem Report Form . . . . . . . . . . . . . . . . . . . . . .204

Appendix A. Abbreviations 207
Appendix B. Cable and Pin Information 211

Connecting to the Out-of-Band Management Port . . . . . .21 1

Out-of-Band Management Port and Cable Pin-Ou ts . . . . . 212

Twisted-Pair Cable Pin Outs . . . . . . . . . . . . . . . . .214

Cabling Recommendations. . . . . . . . . . . . . . . . . .21 5

Cable Length and Lobe Wiring Rules for Dedicated-Media

LAN Segments . . . . . . . . . . . . . . . . . . . . . . . .217

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Cable Length and Lobe Wiring Rules for Shared-Media

LAN Segments. . . . . . . . . . . . . . . . . . . . . . . . 219

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List of Figures

Figure 1. CrossFire 8600 Token-Ring Switch . . . . . . . . . . . . . 1

Figure 2. CrossFire 8605 Token-Ring Fiber Switch . . . . . . . . . . 1

Figure 3. Location of LEDs, Switches, and Connectors on

CrossFire 8600 . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 4. Location of LEDs, Switches, and Connectors on

CrossFire 8605 . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 5. Multiple Conversations Through a CrossFire 8600

or CrossFire 8605 Switch . . . . . . . . . . . . . . . . . 18

Figure 6. Typical Configuration with Switches Using

Multiple Bridging Modes . . . . . . . . . . . . . . . . . . 20

Figure 7. A Switch Configured with Two VLANs. . . . . . . . . . . 2 6

Figure 8. Typical LAN Segmentation . . . . . . . . . . . . . . . . 50

Figure 9. A Simple Application of the Switch . . . . . . . . . . . . 51

Figure 10. Typical Network without the CrossFire Switches . . . . . 52

Figure 11. Relieving the Overstressed Bac kbone. . . . . . . . . . . 5 2

Figure 12. Replacing SRBs with CrossFire 8600 or CrossFire 8605 . 53

Figure 13. Star-Wired Topology of Interconnec ted Switches . . . . . 54

Figure 14. Removing the Universal Expansion Slot Cover . . . . . . 58

Figure 15. Exposin g the Rack Mounting Brac ket . . . . . . . . . . . 59

Figure 16. Mounting the Switch in a Rack or Cabinet. . . . . . . . . 60

Figure 17. Connecting Devices to Token-Ring Ports . . . . . . . . . 6 2

Figure 18. Connec ting using Buildi ng Wiring . . . . . . . . . . . . . 63

Figure 19. The Back Panel of the Switch . . . . . . . . . . . . . . . 64

Figure 20. View of Console Connection—the MANA GE M ENT port . 70

Figure 21. Switch with four VLANs . . . . . . . . . . . . . . . . . . 87

Figure 22. Setting up CrossLinks . . . . . . . . . . . . . . . . . . . 109

Figure 23. TIA/EIA 232 Null-Modem Cable for the 25-pin Connector. 213
Figure 24. TIA/EIA 232 Null-Modem Cable for the 9-pin Connector . 213

Figure 25. Straight-Through Cable . . . . . . . . . . . . . . . . . . 214

Figure 26. Data Connector-to-RJ-45 Straight-Through Cable . . . . 214

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List of Tables

Table 1. Status LEDs and Their Meanings. . . . . . . . . . . . . . 8

Table 2. Stack-link LEDs and Their Meanings . . . . . . . . . . . . 9

Table 3. Port LEDs and Their Meanings . . . . . . . . . . . . . . . 9

Table 4. Capacity Specifications . . . . . . . . . . . . . . . . . . . 12

Table 5. Performance Specifications. . . . . . . . . . . . . . . . . 13

Table 6. Specifications of Physical Characteristics . . . . . . . . . 13

Table 7. Supported MIBs. . . . . . . . . . . . . . . . . . . . . . . 27

Table 8. Token-Ring Port Operation Modes . . . . . . . . . . . . . 32

Table 9. Switching Modes . . . . . . . . . . . . . . . . . . . . . . 34

Table 10. Expansion Module Slots . . . . . . . . . . . . . . . . . . 35

Table 11. Multiple Bridging Modes . . . . . . . . . . . . . . . . . . 36

Table 12. Spanning Tree Protocol. . . . . . . . . . . . . . . . . . . 37

Table 13. Management . . . . . . . . . . . . . . . . . . . . . . . . 38

Table 14. Network Monitoring . . . . . . . . . . . . . . . . . . . . . 39

Table 15. Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Table 16. Connectivity Options . . . . . . . . . . . . . . . . . . . . 41

Table 17. Front Panel Connectors and Push-Buttons . . . . . . . . . 66

Table 18. Front Panel LEDs . . . . . . . . . . . . . . . . . . . . . . 67

Table 19. Back Panel Switches and Connectors . . . . . . . . . . . 68

Table 20. Console Configuration Settings. . . . . . . . . . . . . . . 70

Table 21. Modem Settings. . . . . . . . . . . . . . . . . . . . . . 132

Table 22. Changing and Saving Switched Port Analyzer Settings . 194
Table 23. Symptom, LED State and Recommended Procedure . . 196

Table 24. Connecting to the Management Port . . . . . . . . . . . 211

Table 25. Pin-out of the Management Port . . . . . . . . . . . . . 212

Table 26. Copper Cable Types . . . . . . . . . . . . . . . . . . . 215

Table 27. Multimode Optical Fiber Cable Types. . . . . . . . . . . 215

Table 28. Lobe Length for 150 Ohm Shielded Media . . . . . . . . 217

Table 29. Lobe Lengths for 100 Ohm Shielded or Unshielded Cable 217
Table 30. Lobe Lengths for 100 or 120 Ohm Shielded or

Unshielded Cable . . . . . . . . . . . . . . . . . . . . . 218

Table 31. Lobe Lengths for Recommended Fiber Cable . . . . . . 218

Table 32. Alternate Optical Fibers. . . . . . . . . . . . . . . . . . 218

CrossFire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641

About this Manual

This manual is intended for network technicians familiar with the installation and
operation of net w orking equipment. It contains all the information requi red to
install and operate the CrossFire
8605 Token-Ring Fiber Switch.

Unless one of th e switche s is menti oned alone , the informat ion in t his guide appl ies
to both CrossFire 8600 and Cros sFire 8605.

The manual contains the following chapters and appendices.

TM

8600 Token-Ring Switch and/or the CrossFire

xiii

Chapter 1, “Overview and Specifications”

, is an overview of Token- Ring. It
explains how t he switc h is u sed i n a Tok en-Ring. In clu ded in t he chapt er is a lis t of
features and specifications.

Chapter 2, “Switch Theory of Operati on”

, explains how the switch improves

network performance.

Chapter 3, “Preparing for Installation”
Chapter 4, “Installation”

, contains instructions for installing, connecting and

, deals with preparing for installation.

verifying the operation of the switch.

Chapter 5, “Connecting a Network Management Console”

, explain s how t o se t

up a console connection for in-band or out-of-band switch management.

Chapter 6, “Switch Configuration”

, deals with setting up and configuring the

switch using a direct console connection.

Chapter 7, “Monitoring the Network with the Console”

, explains how to
monitor the switch using out-of-band management through a direct consol e
connection.

Chapter 8, “Monito ring the Net work with S NMP”

, explains ho w to monit or the
switch from a Network Management System using an application that supports
Simple Network Manage me nt P r otocol.

Chapter 9, “Monitoring Port Traffic”

, explains how to monitor ports on the

switch using SwitchProbe.

Chapter 10, “Troubleshooting”

, gives troubleshooting hints that can be used to

locate and reso lve minor problems.

Chapter 11, “Getting in Touch with Technical Support”

, lists Olic om’s support
services suc h as hotline support, fax support and the support web, as well as other
services such as bulletin board service, FTP server and e-mail.

Appendix A, “Abbreviations”

CrossF ire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641

, lists the abbreviations used in this manual.

xiv

Appendix B, “Cable and Pin Information”

, lists cables and cable types that can

be used with CrossFire Token-Ring equipment.

❏

CrossFire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641

1. Overview and Specifications

This chapter di scusses switching technology and how the CrossFire 8600 Token­Ring Switch and/or the CrossFire 8605 Token-Ring Fiber Switc h can be used to
improve networ k performance. This chapter al so includes a list of features and
specif ications for the switch.

The topics of this chapter are presented under the following titles:

•

“Switching Technology”, starting on page 2.

•

“Physical Char acteristics ”, starting on page 5.

•

“Features and Speci fications”, starting on page 10.

The figures below display a front view of the CrossFire 8600 Token-Ring Switch
and the CrossFire 8605 Token-Ring Fiber Switch.

1

Figure 1. CrossFi re 8600 Token-Ring Switch

Figure 2. CrossFi re 8605 Token-Ring Fiber Switch

CrossF ire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641 Over view and Specifi cations

2

Switching Technology

Demand for network bandwidth continues to grow, driven by the increasing
number of systems us ed in net work-inte nsive applic ations . LAN segmen tatio n has
been the prevalent method for addressing these demands and has been further
popularized by tre nds toward server centralization. However, the implementation
costs of LA N s eg mentation , as w el l as the real per fo r mance char ac te r ist i cs of
conventional network components, have served to limit growth of some Token­Ring networks. Alternative technologies for addressing bandwidth demands
present yet other inhibitors, usually relating to costs. Token-Ring switching
provides users with an easy, cost-effective technique for addressing these demands.

Token-Ring s wit ches, s uch a s th e C rossFi re 8600 and the CrossFi re 8 605, in cre ase
throughput between Token-Ring segments by supporting simultaneous, parallel
conversations. Switched connections between Token-Ring segments last only for
the duration of the packet—new connections can be made betwe en different
segments for the next packet.

Token-Ring switches solve congestion problems caused by high-bandwidth
devices and powerful applications as well as the number of users. Therefore, each
of these devic es—servers , for example —can be assi gned its own 16 Mbps seg ment.

In Token-Ring networks, the major bottlene ck is typically the throughput to high­bandwidth devi ces suc h as servers , and be tween r oute rs, b ridg es, and s witc hes. An
effective solution is full-duplex communication, an option for each segment
connected to a CrossFire 8600 or a CrossFire 8605 port. Normally, Token-Ring
operates in half-duplex communication mode , which means stations can either
receive or transmit. With ful l-duplex technolog y, two communicating stations can
transm i t an d re ce ive at the sa me ti m e . W h en pa ckets can flow in b ot h di re ct i on s
simultaneously, effective Token-Ring bandwidth doubles from 16 Mbps to 32 Mbps.

The CrossFire 8600 and the CrossFire 8605 can forward Token-Ri ng frames among
multiple, shared or dedicated Token-Ring LAN segments. Using a frame
forwarding techn ique si milar to t hat of a mult iport Tok en-Ring t ranspa rent bri dge ,
the switch uses Token-Ring MAC addresses to forward Token-Ring frames from
any of its ports to any other.

Switch of Switches

The CrossFire 8600 and the Cr ossFire 8 605 can be dep loyed in a variety of network
configuration s, all o f whi ch provide a s i gnifica nt in cre ase in ne twor k perform ance .
The series of Olicom Toke n-Ring products allows users to build network systems
that can transport data efficiently and scale upwards as throughput requirements
increas e. The s witche s del iver hig h-rel iabil ity an d media flex ibilit y. The se featu res
combine to allow the switches to be used as a switch of switches which provides
media flexibility in an Token-Ring configuration.

CrossFire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641 Overview and Specifications

The CrossFire 8600 and t he Cross Fire 8605 can e asily conne ct with other CrossFire
products to de liver a broa d range of networ k carrying capacit y. Bandwidth is easily
scaled to meet all performance requirements.

Switch of Servers

With client/server applications, many client workstations may attempt to access a
single server at the same time. This traffic pattern may create bottlenecks at the
server. To further enha nce performance, the CrossFire 8600 and the CrossFire 8605
can deliver dedic ated bandwidth to high-spe ed file servers. All servers perform
better with ded ica ted 16 Mbps bandwidth.

Even better performance can be achieved by installing multiple adapters in the
server. By connecting these adapters to the switch, multiple 16 Mbps paths to the
server ar e created, a solution that is on ly possible when using a switch.

The switch ties together all Token- Ring devices lined to a loc al wiring center. In
networks, wher e a significant portion of the traffic moves locally between client
and server, the switch can be very effective.

Switch of Hubs

When network traffic increases beyond the capability of hubs, contention results.
Applications suffer and may even fail. The net effect of such a network
configuration is that all devices share a single 16 Mbps data path, thus reducing
overall network efficiency. The CrossFire 8600 and CrossFire 8605 can be very
effective when used as a switch of hubs.

3

The switches ca n alleviate contention through microsegmentation , or reducing the
number o f devices i n each shared segment. To p r o v ide micro segmentat io n, the
switches divid es a sing le 16 Mbps segmen t i nto mult ipl e 16 Mbps se gment s. As a n
example, a workgroup has 16 Mbps of capacity. The 20 ports on the switches
support 10 s imultaneo us conver sations wit h 20 hubs, t hus pro viding the workgroup
with 160 Mbps bandwidt h throughput, which results in a s ignificant gain in
bandwidth .

Switch of Desktops

The CrossFire 8600 and the CrossFir e 8605 are a c ost-effecti ve means of pr oviding
dedicate d bandwidth to individual desktop workstations. In this applicat ion, the
switch replaces a hub, providing excellent, hub-like network management
statisti cs. Total network ca pacity and t hroughput increase dr amaticall y for atta ched
desktop workstations.

CrossF ire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641 Over view and Specifi cations

4

Switch of Floors and Buildings

For network mana gers , multis t orey bui ldings and c ampuses c an represe nt a unique
networking chal lenge. How can a network manager provide an ef ficient LAN
interconnec t for users that ar e lo cated on s everal floors of a buildi ng or in differen t
buildings?

Token-Ring switching and the CrossFire product family can provide the best
solution. T he CrossFire 8600 and the CrossFi re 8605 pr ovide enhanc ed throughput
to local wiring closets that can be connected to a switch located in the data center.

Many networks consist of users located in different buildings of a campus
environment. The switches can be used as a collapsed backbone interconnecting
multiple buildings of a campus. They can provide the connectivity solution and
enhanced throughput that such campus environments require.

Switch of Routers

Router technology has had a significant impact on the design of today’s
internetworks. Rout ers ha ve be come the cor nerst one of m ost pro ductio n networks .
Although well equipped to provide firewall, WAN connectivity, security, and
connection betwe en dissimilar LANs, routers are unable to provide hi gh throughput
between desktop de vices and servers. Because of these limitations, routers and
switches perform complimentary functions in the network.

The Cross Fire 8600 and t he CrossFire 8605 can be used as a front-en d to routers to
increase performance in each subnet. Communication between local clients and
servers is enhanced at the workgroup level below the router.

The switches can also be used to back-end routers. In networks were many route rs
are intercon nected over Token-Ring and backbone performance is not acceptable,
the switches provide non-blocking communication between the rout ers for
enhanced network performance. This provides prot ocol transparency with
enhanced throughput in each subnet between local servers and desktops, thus
allowing network managers to build logical networks as large as network layer
protocol and broadcast traffic allow.

The SwitchProbe (Switched Port Analyzer) also gives a collapsed backbone
network superior net work management and the abilit y to perform protoc ol analysis
from a singl e loc ation . The SwitchPr obe (Swi tc h Port Ana ly zer) p rovi des the l atest
technology for monitoring switch-based networks and helps to reduce the cost of
man ag ing the s e networks.

CrossFire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641 Overview and Specifications

Physical Characteristics

I

I

I

5

2 Expansion modules

ERR

1

20 Token-Ring UTP/STP ports

CrossFire 8600

TXTX RX TXRX

2

TOKEN-RING SW

RX TX RX INS

INSINSINSDIAG

3

18

STACK-LINK TX LED

MANAGEMENT

1

MANAGEMENT port
(Out-of-Band
Management)

STACK-LINK

RXTX

DIAGPWR RSTERR

ATTACH

32

STACK-LINK ATTACH LEDSTACK-LINK RX LED

SysReq button

5

4

RST button (reset)
ERR LED
DIAG LED
PWR LED

DIAG

ERR

1

234

876109 151211 1413 1716

Port ACT LED
Port INS LED

Figure 3. Location of LEDs, Switches, and Connectors on CrossF ire 8600

STACK LINK ATTACH LEDSTACK-LINK RX LED

STACK-LINK

RXTX

DIAGPWR RSTERR

ATTACH

32

32

SysReq button

5

5

4

4

RST button (reset)
ERR LED
DIAG LED
PWR LED

DIAG

ERR

1

234

876109 151211 1413 1716

876109 151211 1413 1716

Port ACT LED
Port INS LED

STACK-LINK TX LED

MANAGEMENT

1

1

INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS

MANAGEMENT port
(Out-of-Band
Management)

2 Expansion modules

20 Token-Ring Fi portsber

ERR

CrossFire 8605

TXTX RX TXRX

1

2

TOKEN-RING SW

TOKEN-RING SW

RX TX RX INS

INSINSINSDIAG

3

18

18

Figure 4. Location of LEDs, Switches, and Connectors on CrossF ire 8605

ACTACTACTACT

4

19

ACTACTACTACT

4

19

19

Out-of-Band Management (OBM)

The 9-pin, male, Out-of-Band Management (OBM) port labelled MANAGEMENT
functions as a DTE port.

This port enables atta chment o f a terminal, either local or remote , through a modem
connection . Th e terminal can be used to configure and moni tor the switch.

The Out-of-Band Manage ment port automatically detec ts the baud rate of the
termi nal to whic h it is attach ed.

CrossF ire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641 Over view and Specifi cations

6

Token-Ring Ports

•

CrossFire 8600

Twenty shielded RJ -45 connectors for Token-Ring connection.
— Support for the IBM Cabling System via 150 ohm, shielded twisted-pair

— These ports allow ha lf-duplex (HDX) or full -duplex ( FDX) connec tions to

•

CrossFire 8605

Twenty fiber VF-45 conn ec tors for T oken-Ring connection.
— These ports allow ha lf-duplex (HDX) or full -duplex ( FDX) connec tions to

•

The switch will automatically sens e what type of T oken-Ring connection is
being employed on each of its ports, whether it is a connection:

— to a shared-media segment via a Token- Ring concentrator (Sta tion mode)
— to another Token-Ring switch
— operating at 4 Mbps or at 16 Mbps

(150 ohm STP); or 100 or 120 ohm unshielded twisted-pai r via Category
3, 4, or 5 cables.

other switches, hubs, or end nodes.

other switches, hubs, or end nodes.

— to a dedicated-media segment, directly to a Token-Ring LAN station

operating in half-duplex or full-du plex mode (Port mode)

The switch will automat ical ly confi gure (re quiri ng no operat or action) e ach po rt t o
operate at the highe st level of capability pos sible. No special crossove r ca bles are
required for Token-Ring stations on dedicated-media segments or for switch-to­switch connect ions; the same straight through cablin g is used regardle ss of the type
of connection. This auto-sense/auto-configure capabilit y of the switch can be
overridden by explicit console management.

Switched Port Analyzer

Any of the twenty Token-Ring ports ca n be configured as a T okenProbe port. It is
used to monitor any one of th e other Token-Ring ports so that the ac tivity can be
traced by a special passive network analyzer attached to the TokenProbe port.

CrossFire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641 Overview and Specifications

Universal Expansion Slots and Modules

The switch contains two universal expansion slots (see Figure 3 or Figure 4) that
will accommodate optional, field-installable Universal Expansion Modules
(UEMs) that provi de a dditional connections . Future UEMs will provide the
following types of connections:

•

OC-8610 4-Port Token-Ri ng UTP/STP

•

OC-8611 4-Port Token-Ri ng F iber

•

OC-8320 ATM155 LANE Bridge UTP

•

OC-8321 ATM155 LANE Bridge MMF

•

OC-8650 High-Speed Token-Ring UTP

•

OC-8651 High-Speed Token-R ing MMF

Reset Button

The switch has a recessed reset button labelled RST that is located on the front
panel. Pressing the reset button resets the hardware and software and clears all
tables and memory, in cl uding the ad dress t ables. Pres sing the rese t but ton doe s not
clear those values stored in non-volatile random access memory (NVRAM).

7

System Request Button

This unlabell ed recessed butt on is located on th e front panel above the reset button.
Pressing the button causes the
device attached to the MANAGEMENT port. Pressing the button for more than
five seconds will initiate a modem download of the main image.

➽ Note:

The system request b utton should be used only at the dire ction of service

personnel. The button is recessed to prevent accidental activation.

System Request

menu to appear on the console

Labels

The two labels in the right side of the front pane l are:

•

The MAC Address Label:
The unique global ly as signed base Base MAC-Address of the switc h.

•

The Sw it ch N u mb er Lab el:
Blank label for an individual user identification of the switch.

CrossF ire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641 Over view and Specifi cations

8

Status and Activity LEDs

The switch featur es three status LEDs on the front panel that show the current statu s
of the switch. Also on th e front panel are three LEDs that show activity for the
optional stacke r link module. In additio n, each Token-Ring port has two LEDs. On
CrossFire 8600, these two LEDs are unlabelled and loca ted on the upper edge of
each port. On Cros sFir e 8605, thes e LEDs ar e locate d und er eac h port an d label led
ACT and INS.

Refer to Figure 3 and Figure 4 in this chapter for the locations of all the LEDs.
Table 1 below lists the status LEDs and their meanings.

LED State Meaning

PWR

Off

The switch is not connected to a power outle t, or
the powe r supply is faulty.

The switch is receiving power.
The DIAG diagnostics LED is on during the

DIAG

On
On

power - on self-test.

Blinking

During download of a new software image, the
DIAG LED blinks to indicate the clearing (slow
blink) and loading (faster blink) of FLASH
memory.

ERR

On

The ERR LED is off during normal operation. If
the LED turns on, an error has occurred. Power
the switch down and up again. The ERR LED
should not turn on ag ain. If it does, the switch is
faulty.

Note that the ERR LED also turn s on if the switc h
is powered only by an external power supply.

Table 1. Status LEDs and Their Meanings

The stack-link LEDs and port LEDs are described in the tables on the next page.

CrossFire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641 Overview and Specifications

Table 2 lists the stack-link LEDs and their meanings.

LED State Meaning

9

TX

RX

ATTACH

T able 2. Stack-link LEDs and Thei r M eanings

or

On
blinking

or

On
blinking

On

Data is being transmitted to the stack link. It is
blinking, when the stack interface is inserted.

Data is being received from the stack link. It is
blinking, when the stack interface is inserted.

A connection has been established to the stack.

Table 3 lists the port LEDs and their meanings.

LED State Meaning

INS
(left LED of
port)

ACT
(right L ED of

On
Off
Blinking

or

On
blinking

The Token- R ing port is inser t ed into the ring.
The Token-Ring port is not inserted into the ring.
The Token-Ring port is disabled.
Data is being transmitted t o or receiv ed from the

port.

port)

Table 3. Port LEDs and Their Meanings

CrossF ire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641 Over view and Specifi cations

10

Features and Specifications

Features and specifi cations fo r the CrossFire 86 00 a nd the C rossFire 8605 are li sted
below.

Feature s

Performance an d A dvanc ed Fe atures

•

Three switchin g mode s:
— Low latency cut-through
— Store and Forward
— Auto (Adaptive cut-through)

•

Enhanced bridging modes:
— Transparent Bridging
— Source Ro u t e S w it ch i n g
— Source Route Bridging (SRB)
— Source Route Transparent Bridging (SRT)

•

Support for duplic ate MAC address schem es

•

Automatic port sensing of operating mode and media speed

•

Multiple Token-Ring port operation modes:
— Half-duplex concentrator and station
— Full-duplex concentrator and station (Dedicated Token-Ring)
— RI/RO-l ike connection

•

Spanning Tree Protocol support:
— IEEE 802.1D
— IBM Spanning Tree Protocol

•

CrossLink high-speed inter-switch connection
(up to 256 Mbps using eight port s )

•

Advanced filtering (MAC address / Protocol)

•

VLAN support

•

Support for transm ission priorities

•

Congestion control

CrossFire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641 Overview and Specifications

Management

•

Extensive and sophisticated network management:
— SNMP management
— Out-of-band management via Telnet and VT100 consoles
— Graphical management applicatio n for HP OpenV ie w for W indo ws 95 and

Windo ws NT (for i nformat ion on addit ion al manag ement ap plica tions for
Unix, please contact your local Olicom sales representativ e)

•

Support for RMON and standard MIBs

•

Network statistics

•

LAN probe port mirroring

•

Fault isolation and detection

•

Download via TFTP or X-modem of new switch microcode

•

Up- and download of switch configuration via TFTP

Scalability and High Availability

•

Up to 5,500 active LAN stations per group of four ports (1-4, 5-8, 9-12,
13-16, 17-20) with a maximum of 10,000 active LAN stations per switch

11

•

Stackable architecture

•

Optional redundant power supply

•

High density swit ch with seamless integration of LAN & ATM via LAN
emulation brid ging

Installation

•

No special cross o ver c ab l e r eq u ir e d

•

Rack or surface mounting

•

Plug and Play for transparent f orwarding:
— Automatic learning of network configuration
— Transparent to high-level protocol

•

Automatic sensing and configuration of ports

•

A factory-assigned MAC address (the switch can also be configured with a
locall y a dm in i stered MAC addre s s)

CrossF ire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641 Over view and Specifi cations

12

Specifications

The tables on the following pages list the product specifications for the CrossFire
8600 and the CrossFire 8605.

Capacity

Specification Value

Number of Token-Ring ports

(base configuration)

Maximum number of
additional T oken-Ring ports in
expansion modules

Number of T oken-Ring
switches in stack

Maximum number of Token­Ring ports in stack

2 Expansion slots, choice of

Global lookup table size

(stations and bridges)

20

8

8 using the CrossFire 8300 Switch Stacker
5 using the CrossFire 8635 Internal Stacker
Module
2 using the CrossFire 8630 Stacker Link
Module

224 using the CrossFire 8300 Switch Stacker
140 using t he CrossFire 8635 Internal St acker
Module
56 using the CrossFire 8630 Stacker Link
Module

4 x 4/16 Mbps RJ-45 Token-Ring
4 x 4/16 Mbps Fiber Token-Ring
1 x ATM155 Card (UTP and MMF)
2 x High-Speed T ok en-R ing (UTP and Fiber)

10,000

Local lookup table size, total f or
4 ports

(stations and bridges)

Maximum nu mber

5,500

63

of logical rings
Maximum number of VLANs

T able 4. Capacity Specifications

CrossFire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641 Overview and Specifications

63

Performance

Specification Value

13

Maximum frame rate per port

Maximum aggregate frame rate
per 4 ports

Throughput per port
Aggregate switching rate

(uni cast or bro adcast ) f or en tire
switch

Within switch latency

(cut-thr ough)

Table 5. Performance Specifications

Physical Characteristics

Specification Value

Rack mount
Dimensions

57,000 pps in each directi on (measured with a
frame size of 19 bytes)

200,000 pps in each dire ction. Full media
speed for frame sizes above 28 byte s

16 Mbps in each direction for all frame s izes
1,500,000 pps for smalle st frame sizes

35 µs

19" rack mount (hardware included)
Width: 19" (48.3 cm)

Depth: 15.74" (40.0 cm)
Height 3.46" (8.80 cm)

Weight
Power
Frequency
AC current ratin g
Thermal dissipation

(without modules)

MTBF Cros sFire 8600

Table 6. Specifications of Physical Characteristics

CrossF ire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641 Over view and Specifi cations

19.4 lbs. (8.8 Kg)
100 to 240 VAC autosensing
50/60 Hz

1.5 A @ 120 V; 0.75 A @ 220 V

Cros sFire 8600:
Cros sFire 8605

90 W

: 80 W
: 77,240 hours

Cros sFire 8605:

40,342 hours

14

Specification Value

Operating Temper atu re:
Non-operating Temperature:

Humidity:
Operating
Non-operating

Electromagn etic emissions
certification

Safety

MANAGEMENT port
Software updates
Protocol compatibility
Spanning Tree Protocol

support
MIBs supported

10 to 40°C (50 to 104°F)

-10 to 70°C (13 to 158°F)

8 to 80% (non-condensing)
90% @ 45°C (113°F)

FCC Class A
EN55022 Class A
VCCI Class A

UL1950
CSA C22.2 No. 950
EN60950

TIA/EIA-232-F, DB9 male connector
Flash PROM, TFTP, X-modem
Tr ans parent to higher layer protocols
IEEE 802.1D compliant

IBM Spanning Tree
SNMP MIB II (RFC1213)

SR Bridge MIB (RFC1525)
Bridge MIB (RFC1493)
Evoluti on of the Inte rfaces Group of MIB-II
(RFC1573)
RMON MIB/TR extensions - selected
groups only (RFC1757/1513)
IEEE 802.5 MIB (RFC1749/1748)
IEEE 802.5r DTR MIB
IEEE 802.5r DTR MA C MIB
oc8600 unit MIB
VTP MIB

Table 6. Specification s of Physical Characteristics

CrossFire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641 Overview and Specifications