Cabletron Systems FDMMIM User manual

The Complete Networking Solution
FDMMIM, FDMMIM-04,
FDMMIM-24, and FDMMIM-30
FDDI CONCENTRATOR
ETHERNET to FDDI
BRIDGE MODULES
INSTALLATION and
USER’S GUIDE
Cabletron Systems, P. O. Box 5005, Rochester, NH 03867-0505

NOTICE
i
NOTICE
Cabletron Systems reserves the right to make changes in
specifications, hardware, firmware, software, 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.
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.
Copyright July 1994
Cabletron Systems, Inc
P.O. Box 5005
Rochester, NH 03867-0505
All Rights Reserved
Printed in the United States of America
Part number: 9030670-03 July 1994
Multi Media Access Center, SPECTRUM,Remote LANVIEW,
and LANVIEW are registered trademarks and FDMMIM,
FDMMIM-04,FDMMIM-24,FDMMIM-30, FDCMIM-04,
FDCMIM-08, FDCMIM-24, FDCMIM-28,IRM,IRM-2,IRM-3,
IRBM,EMME,TRMM,CXRMIM,TPRMIM,FORMIM,Flexible
Network Bus, MMAC-3FNB,MMAC-5FNB, MMAC-8FNB, and
MMAC-M8FNB are trademarks of Cabletron Systems, Inc.
CompuServe is a registered trademark of CompuServe.
Ethernet is a trademark of Xerox, Inc.
IBM is a registered trademark of International Business Machines Corp.
UNIX is a registered trademark of Unix System Laboratories, Inc.
VT-220 and VT-320 are trademarks of Digital Equipment Corp.
Windows is a registered trademark of Microsoft Corp.

FCC NOTICE
ii
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.
DOC NOTICE
This digital apparatus does not exceed the Class A limits for radio
noise emissions from digital apparatus set out in the Radio
Interference Regulations of the Canadian Department of
Communications.
Le présent appareil numérique n’émet pas de bruits radioélectriques
dépassant les limites applicables aux appareils numériques de la
class A prescrites dans le Règlement sur le brouillage radioélectrique
édicté par le ministère des Communications du Canada.
Printed on recycled paper

NOTICE
iii
SAFETY INFORMATION
CLASS 1 LASER TRANSCEIVERS
CLASS 1
LASER PRODUCT
Class 1 Laser Products
The FDMMIM-30 connectors use Class 1 Laser transceivers. Read
the following safety information before installing or operating the
FDMMIM-30.
The Class 1 laser transceivers use an optical feedback loop to
maintain Class 1 operation limits. This control loop eliminates the
need for maintenance checks or adjustments. The output is factory
set, and does not allow any user adjustment. Class 1 Laser
transceivers comply with the following safety standards:
• 21 CFR 1040.10 and 1040.11 U.S. Department of Health and
Human Services (FDA).
• IEC Publication 825 (International Electrotechnical
Commission).
• CENELEC EN 60825 (European Committee for
Electrotechnical Standardization).
When operating within their performance limitations, laser
transceiver output meets the Class 1 accessible emission limit of all
three standards. Class 1 levels of laser radiation are not considered
hazardous.

FCC NOTICE
iv
SAFETY INFORMATION
CLASS 1 LASER TRANSCEIVERS
Laser Radiation and Connectors
When the connector is in place, all laser radiation remains within
the fiber. The maximum amount of radiant power exiting the fiber
(under normal conditions) is -12.6dBm or 55x10 -6 watts.
Removing the optical connector from the transceiver allows laser
radiation to emit directly from the optical port. The maximum
radiance from the optical port (under worst case conditions) is 0.8 W
cm-2 or 8x10 3 W m-2 sr-1.
Do not use optical instruments to view the laser output. The use of
optical instruments to view laser output increases eye hazard. When
viewing the output optical port, you must remove power from the
network adapter.

v
CONTENTS
CONTENTS
CHAPTER 1INTRODUCTION
1.1 Using this Manual ........................................................................1-2
1.2 Getting Help ..................................................................................1-4
1.3 The FDMMIM FDDI Concentrator and Ethernet to FDDI
Bridging Modules ..........................................................................1-4
1.4 FDMMIM Features .......................................................................1-7
CHAPTER 2 INSTALLING THE FDMMIM
2.1 Before you Install the FDMMIM . . .............................................2-1
2.1.1 Adding MIMs to an MMAC.................................................2-2
2.1.2 MMAC Configurations ........................................................2-4
2.1.3 IRM-3 and Ethernet MIMs with FDMMIMs .....................2-4
2.1.4 EMME and RMIMs with an FDMMIM..............................2-5
2.2 Installing the FDMMIM ...............................................................2-6
2.2.1 Setting Jumpers ..................................................................2-6
2.2.2 Setting Configuration Switches..........................................2-7
2.2.3 Installing into the MMAC...................................................2-9
2.3 Connecting Fiber Optic Cabling .................................................2-10
2.4 FDMMIM-04 and FDMMIM-24 Master Port
Cable Connections.......................................................................2-13
2.5 Twisted Pair Pinout Configuration ............................................2-13
2.6 Master Ports and LANVIEW......................................................2-14
2.7 FDMMIM and LANVIEW ..........................................................2-15
2.7.1 Ethernet LEDs...................................................................2-15
2.7.2 FDDI LEDs ........................................................................2-17
CHAPTER 3 CONNECTING TO LOCAL MANAGEMENT
3.1 Connecting a Console....................................................................3-1
3.2 Powering-up the FDMMIM: Diagnostic Tests.............................3-4
3.3 Manually Resetting the FDMMIM...............................................3-6
CHAPTER 4 GETTING STARTED WITH FDMMIM
LOCAL MANAGEMENT
4.1 Understanding the Screens and Commands ...............................4-1
4.2 Using the Management Keyboard................................................4-2
4.3 Navigating through Local Management......................................4-2

vi
CONTENTS
4.4 Screen Organization......................................................................4-4
4.4.1 Screen Header and Message Bar Section...........................4-4
4.4.2 Data Sections and Command Menus .................................4-7
4.5 Setting FDMMIM Operating Parameters ...................................4-7
CHAPTER 5 USING THE INFORMATION SCREENS
5.1 The System Information Screen...................................................5-1
5.1.1 NETWORK TRAFFIC Data................................................5-2
5.1.2 FDDI Data ...........................................................................5-3
5.1.3 FILTER DATABASE Data..................................................5-5
5.1.4 BRIDGE PROTOCOL Data ................................................5-6
5.1.5 System Information Screen Commands.............................5-8
5.2 The Network Traffic Screen .........................................................5-9
5.2.1 Network Traffic Screen Data ............................................5-10
5.2.2 Network Traffic Screen Commands .................................5-12
5.3 The Ring Map Screen..................................................................5-13
5.3.1 Ring Map Screen Data ......................................................5-14
5.3.2 Ring Map Screen Commands ...........................................5-15
5.3.3 Adjusting the Scroll Number (n) ......................................5-15
5.4 The Node Information Screen ....................................................5-16
5.5 The Message Log Screen.............................................................5-18
5.5.1 Message Log Data .............................................................5-20
5.5.2 Message Log Screen Commands.......................................5-20
CHAPTER 6 SETTING UP THE FDMMIM
6.1 The Setup Screen ..........................................................................6-1
6.1.1 Setup Screen Data...............................................................6-2
6.1.2 Setup Screen Commands ....................................................6-6
6.2 The Community Names Table Screen .........................................6-7
6.2.1 Community Names Table Screen Data ..............................6-8
6.2.2 Community Names Table Screen Commands ...................6-9
6.3 TFTP Code Download Setup Screen ............................................6-9
6.3.1 TFTP Code Download Setup Screen Data .......................6-10
6.3.2 TFTP Code Download Setup Screen Commands.............6-10
6.4 Image File Download with UNIX ...............................................6-11
6.5 Forcing an Image File Download...............................................6-13
6.5.1 Forcing a Download with FDMMIM/LM..........................6-13
6.5.2 Forcing a Download with BOOTP ....................................6-14

vii
CONTENTS
CHAPTER 7 SPANNING TREE
7.1 The Bridge Protocol Screen ..........................................................7-1
7.1.1 Bridge Protocol Screen Data...............................................7-2
7.1.2 Bridge Protocol Screen Commands ....................................7-5
7.2 The Bridge Port Parameters Screen ............................................7-5
7.2.1 Bridge Port Parameters Screen Data.................................7-6
7.2.2 Bridge Port Parameter Screen Commands........................7-7
CHAPTER 8 THE FILTERING DATABASES
8.1 Bridge Operation...........................................................................8-1
8.2 The Filter Database Screen..........................................................8-2
8.2.1 Filter Database Screen Data ..............................................8-3
8.2.2 Filter Database Screen Commands....................................8-4
8.3 Display Filter Entries Screen.......................................................8-5
8.3.1 Display Filter Entries Screen Data....................................8-6
8.3.2 Display Filter Entries Screen Commands .........................8-7
8.4 Create Filter Entry Screen ...........................................................8-7
8.4.1 Create Filter Entry Screen Data ........................................8-8
8.4.2 Create Filter Entry Screen Commands..............................8-9
8.5 Delete Filter Entry Screen............................................................8-9
8.5.1 Delete Filter Entry Screen Data.......................................8-10
8.5.2 Delete Filter Entry Screen Commands ............................8-10
8.6 Special Database Screen.............................................................8-11
8.6.1 Special Database Screen Data..........................................8-12
8.6.2 Special Database Screen Commands ...............................8-13
CHAPTER 9 CONTROLLING CONCENTRATOR
MODULES AND PORTS
9.1 The FDDI Configuration Screen ..................................................9-1
9.1.1 FDDI Configuration Screen Data.......................................9-2
9.1.2 FDDI Configuration Screen Commands ............................9-4
9.2 Concentrator Status and Bridge Operations...............................9-4

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CONTENTS
APPENDIX A FDMMIM/LM MESSAGES
Information Messages.........................................................................A-1
Warning Messages ..............................................................................A-1
Error Messages ...................................................................................A-9
APPENDIX B SPECIFICATIONS
APPENDIX C BASIC FDDI NETWORKS
Basic FDDI Concepts ..........................................................................C-1
FDDI Media Access Protocol........................................................C-1
Reliability .....................................................................................C-3
ANSI Standard X3T9.5 ................................................................C-4
FDDI Connection Rules................................................................C-8
FDDI Devices ......................................................................................C-9
Design Considerations for FDDI Networks.....................................C-14
Ring Length ................................................................................C-14
Drive Distance ............................................................................C-14
Attenuation .................................................................................C-15
Bandwidth...................................................................................C-15
Number of Stations ...........................................................................C-15
INDEX

1-1
INTRODUCTION
CHAPTER 1
INTRODUCTION
The FDMMIM, FDMMIM-04, FDMMIM-24, and FDMMIM-30
combine the functions of an FDDI concentrator with those of an
Ethernet/802.3 to FDDI bridge. When distinguishing one module
from the other, keep the following in mind:
• All modules contain FDDI A and B ports which bridge to a
Multi Media Access Centerhub Ethernet bus.
• The FDMMIM-04 and FDMMIM-24 also contain four M type
concentrator ports.
• The master ports of the FDMMIM-24 are unshielded twisted
pair connections.
• The FDMMIM, FDMMIM-04, and the FDMMIM-24 A and B
ports are multimode fiber optic devices.
• The FDMMIM-30 is a single mode fiber optic module that
uses a class 1 laser. This laser increases the link length from
the multimode maximum drive distance of 2 kilometers (km)
to a single mode maximum of 40 km.
This manual describes how to install the FDMMIM, FDMMIM-04,
FDMMIM-24, and FDMMIM-30 and explains how to use the on-
board management tool, FDMMIM Local Management, to configure,
monitor, and control the bridge/concentrator.
Unless otherwise noted, the term FDMMIM refers to the FDMMIM,
FDMMIM-04, FDMMIM-24, and FDMMIM-30. In addition, the
terms FDMMIM/LM, Local Management, and LM refer to FDMMIM
Local Management.