Cabletron Systems 42T User manual

MICROMMAC-22T/24T/42T/44T
STACKABLE TOKEN RING
INTELLIGENT HUBS
USER’S GUIDE

iii
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.
© Copyright March 1996 by:
Cabletron Systems, Inc.
P.O. Box 5005, Rochester, NH 03866-5005
All Rights Reserved
Printed in the United States of America
Order Number: 9031320 March 1996
MicroMMAC-22T, 24T, 42T, 44T, BRIM, and TPIM are trademarks of Cabletron Systems,
Inc.
SPECTRUM, LANVIEW, and Remote LANVIEW are registered trademarks of Cabletron
Systems, Inc.
IBM is a registered trademark of International Business Machines Corporation.
DEC, VT200, and VT300 are trademarks of Digital Equipment Corporation.
CompuServe is a trademark of Compuserve, Inc.
Printed On Recycled Pa
per

NOTICE
iv
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 ClassA limits for radio noise emissions from
digital apparatus set out in the Radio Interference Regulations of the Canadian Department
of Communications.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites
applicables aux appareils numériques de la class A prescrites dans le Règlement sur le
brouillage radioélectrique édicté par le ministère des Communications du Canada.
VCCI NOTICE
This 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.
NEED JAP ANESE GRAPHIC TEXT HERE
BEFORE RELEASE

NOTICE
v
CABLETRON SYSTEMS, INC. PROGRAM
LICENSE AGREEMENT
IMPORTANT: Before utilizing this product, carefully read this License Agreement.
This document is an agreement between you, the end user, and Cabletron Systems, Inc.
(“Cabletron”) that sets forth your rights and obligations with respect to the Cabletron
software program (the “Program”) contained in this package. The Program may be
contained in firmware, chips or other media. BY UTILIZING THE ENCLOSED
PRODUCT,YOU ARE AGREEING TO BECOME BOUND BY THE TERMS OF THIS
AGREEMENT, WHICH INCLUDES THE LICENSE AND THE LIMITATION OF
WARRANTY AND DISCLAIMER OF LIABILITY. IFYOU DO NOT AGREE TO THE
TERMS OF THISAGREEMENT, PROMPTLY RETURN THE UNUSED PRODUCT TO
THE PLACE OF PURCHASE FOR A FULL REFUND.
CABLETRON SOFTWARE PROGRAM LICENSE
1. LICENSE. You have the right to use only the one (1) copy of the Program provided in
this package subject to the terms and conditions of this License Agreement.
You may not copy, reproduce or transmit any part of the Program except as permitted by
the Copyright Act of the United States or as authorized in writing by Cabletron.
2. OTHER RESTRICTIONS. You may not reverse engineer, decompile, or disassemble
the Program.
3. APPLICABLE LAW. This License Agreement shall be interpreted and governed
under the laws and in the state and federal courts of New Hampshire.You accept the
personal jurisdiction and venue of the New Hampshire courts.
EXCLUSION OFWARRANTY AND DISCLAIMER
OF LIABILITY
1. EXCLUSION OF WARRANTY. Except as may be specifically provided by
Cabletron in writing, Cabletron makes no warranty, expressed or implied, concerning the
Program (including Its documentation and media).
CABLETRON DISCLAIMS ALL WARRANTIES, OTHER THAN THOSE SUPPLIED
TOYOU BY CABLETRON IN WRITING, EITHER EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF
MERCHANTABLITY AND FITNESS FOR A PARTICULAR PURPOSE, WITH
RESPECT TO THE PROGRAM, THE ACCOMPANYING WRITTEN MATERIALS,
AND ANY ACCOMPANYING HARDWARE.

NOTICE
vi
2. NO LIABILITY FOR CONSEQUENTIAL DAMAGES. IN NO EVENT SHALL
CABLETRON OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES
WHATSOEVER (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF
BUSINESS, PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS
INFORMATION, SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR RELIANCE
DAMAGES, OR OTHER LOSS)ARISING OUT OF THE USE OR INABILITY TO USE
THIS CABLETRON PRODUCT, EVEN IF CABLETRON HAS BEEN ADVISED OF
THE POSSIBILITY OF SUCH DAMAGES. BECAUSE SOME STATES DO NOT
ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR
CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR ON THE DURATION OR
LIMITATION OF IMPLIED WARRANTEES IN SOME INSTANCES THE ABOVE
LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TOYOU.
UNITED STATES GOVERNMENT RESTRICTED
RIGHTS
The enclosed product (a) was developed solely at private expense; (b) contains “restricted
computer software” submitted with restricted rights in accordance with Section 52227-19
(a) through (d) of the Commercial Computer Software - Restricted Rights Clause and its
successors, and (c) in all respects is proprietary data belonging to Cabletron and/or its
suppliers.
For Department of Defense units, the product is licensed with “Restricted Rights” as
defined in the DoD Supplement to the Federal Acquisition Regulations, Section
52.227-7013 (c) (1) (ii) and its successors, and use, duplication, disclosure by the
Government is subject to restrictions as set forth in subparagraph (c) (1) (ii) of the Rights
in Technical Data and Computer Software clause at 252.227-7013. Cabletron Systems,
Inc., 35 Industrial Way. Rochester, New Hampshire 03866

vii
CONTENTS
CHAPTER 1 INTRODUCTION
1.1 CONTENTS OVERVIEW. . . . . . . . . . . . . . . . . . . . . . . . . .1-1
1.2 MicroMMAC-T OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . .1-2
1.3 MicroMMAC-T FEATURES . . . . . . . . . . . . . . . . . . . . . . . .1-3
1.4 STACKABLE CAPABILITIES . . . . . . . . . . . . . . . . . . . . . . .1-8
1.5 BRIDGING/ROUTING CAPABILITIES. . . . . . . . . . . . . . . .1-9
1.5.1 SNA/WAN Integration. . . . . . . . . . . . . . . . . . . . . .1-10
1.6 REMOTE MANAGEMENT CAPABILITIES . . . . . . . . . . .1-10
1.7 TELNET CAPABILITIES . . . . . . . . . . . . . . . . . . . . . . . . .1-10
1.8 RECOMMENDED READING. . . . . . . . . . . . . . . . . . . . . .1-11
1.9 GETTING HELP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11
CHAPTER 2 REQUIREMENTS/SPECIFICATIONS
2.1 CABLE SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . .2-1
2.1.1 UTP Cable Specifications . . . . . . . . . . . . . . . . . . .2-2
2.1.2 STP Cable Specifications. . . . . . . . . . . . . . . . . . . .2-4
2.1.4 Single Mode Fiber Optic Cable Specifications. . . .2-7
2.2 CABLE RECOMMENDATIONS/TROUBLESHOOTING . .2-8
2.3 COM PORT SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . .2-9
2.4 TPIM SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . .2-10
2.5 GENERAL SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . .2-15
2.5.1 Power Supply Requirements . . . . . . . . . . . . . . . .2-16
2.5.2 Environmental Requirements. . . . . . . . . . . . . . . .2-16
2.5.3 Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-16
2.5.4 Physical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-16
2.5.5 Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-17
CHAPTER 3 INSTALLATION
3.1 UNPACKING THE MicroMMAC-T . . . . . . . . . . . . . . . . . . .3-1
3.2 ATTACHING THE STRAIN RELIEF BRACKET . . . . . . . . .3-1
3.3 INSTALLING THE MicroMMAC-T . . . . . . . . . . . . . . . . . . .3-2
3.3.1 Rack-Mounting the MicroMMAC-T. . . . . . . . . . . . .3-2
3.3.2 Wall-Mounting the MicroMMAC-T . . . . . . . . . . . . .3-3
3.3.3 Free-Standing Installation . . . . . . . . . . . . . . . . . . .3-5
3.4 CONNECTING TO A POWER SOURCE. . . . . . . . . . . . . .3-5

CONTENTS
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3.5 RESETTING THE MICROMMAC-T. . . . . . . . . . . . . . . . . .3-5
3.6 SETTING THE RING SPEED . . . . . . . . . . . . . . . . . . . . . .3-6
3.7 SETTING THE NVRAM SWITCH . . . . . . . . . . . . . . . . . . .3-7
3.8 CONNECTING LOBE PORT CABLING . . . . . . . . . . . . . .3-8
3.9 INSTALLING TPIM MODULES . . . . . . . . . . . . . . . . . . . .3-12
3.9.1 Setting Phantom and RI/RO Switches. . . . . . . . .3-13
3.9.2 TPIM Installation . . . . . . . . . . . . . . . . . . . . . . . . .3-14
3.9.3 Connecting STP Segments . . . . . . . . . . . . . . . . .3-15
3.9.4 Connecting Twisted Pair Segments . . . . . . . . . . .3-16
3.9.5 Connecting Fiber Optic Link Segments . . . . . . . .3-17
3.10 CHECKING THE INSTALLATION . . . . . . . . . . . . . . . . . .3-19
CHAPTER 4 LOCAL MANAGEMENT
4.1 MANAGEMENT TERMINAL REQUIREMENTS . . . . . . . .4-1
4.1.1 Attaching the Management Terminal . . . . . . . . . . .4-2
4.1.2 Management Terminal Setup Parameters . . . . . . .4-2
4.1.3 Modem Cable Configuration and Setup. . . . . . . . .4-3
4.2 ACCESSING LOCAL MANAGEMENT . . . . . . . . . . . . . . .4-4
4.2.1 Accessing Local Management via Telnet. . . . . . . .4-5
4.2.2 Accessing Local Management from a Modem. . . .4-6
4.3 USING LOCAL MANAGEMENT . . . . . . . . . . . . . . . . . . . .4-6
4.3.1 Working with Local Management Screens. . . . . . .4-7
4.3.2 The SYSTEM LEVEL Screen . . . . . . . . . . . . . . . .4-9
4.3.3 The SNMP COMMUNITY NAMES Screen . . . . .4-15
4.3.4 The SNMP TRAPS Screen . . . . . . . . . . . . . . . . .4-17
4.3.5 The RING SECURITY Screen. . . . . . . . . . . . . . .4-18
4.3.6 The DEVICE STATISTICS Screen. . . . . . . . . . . .4-23
4.3.7 The CHASSIS STATUS VIEW Screen . . . . . . . . .4-28
4.3.8 The COMPONENT STATUS Screen . . . . . . . . . .4-35
4.3.9 The MIB NAVIGATOR Screen . . . . . . . . . . . . . . .4-36
4.3.10 The FLASH DOWNLOAD Screen . . . . . . . . . . . .4-40
CHAPTER 5 TROUBLESHOOTING
5.1 USING LANVIEW LEDs . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
5.2 USING THE LCD DISPLAY . . . . . . . . . . . . . . . . . . . . . . . .5-2
5.2.1 Static System Messages . . . . . . . . . . . . . . . . . . . .5-3
5.2.2 Alarm Messages . . . . . . . . . . . . . . . . . . . . . . . . . .5-4
5.2.3 Unsaved Initialization Messages . . . . . . . . . . . . . .5-5

CONTENTS
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5.2.4 Saved System Messages. . . . . . . . . . . . . . . . . . . .5-6
5.3 VIEWING POWER UP DIAGNOSTIC TESTS. . . . . . . . . .5-7

1-1
CHAPTER 1
INTRODUCTION
Welcome to the Cabletron Systems MicroMMAC-22T/-24T/-42T/
-44T StackableToken Ring Intelligent Hub User’s Guide
. This manual
provides installation instructions, network requirements, reference
information, and operating instructions for the MicroMMAC-T (Figure
1-1) family of stackable hubs. Installing the MicroMMAC-T requires
familiarity with the physical layer components of Token Ring (IEEE
802.5) data communications networks.
NOTE : Unless otherwise specified, this manual uses the term
MicroMMAC-T to collectively refer to the MicroMMAC-22T, the
MicroMMAC-24T, the MicroMMAC-42T, and the MicroMMAC-44T.
.
Figure 1-1. The MicroMMAC-T
1.1 CONTENTS OVERVIEW
This manual contains the following information:
Chapter 1,
Introduction , outlines the contents of this manual and
describes features of the MicroMMAC-T and its add-on components. It
also lists sources where more information on Token Ring network
implementation can be found.
Chapter2,
Requirements/Specifications ,describescablingrequirements,
network guidelines, and MicroMMAC-T operating specifications.
Chapter 3,
Installation, contains MicroMMAC-T installation instructions
and discusses network connections using various media types. This
chapter includes instructions for setting the Ring Speed Switch, the Reset
Switch, the NVRAM Switch, and the TPIM Phantom Switch. It also
RO
TOKEN RING HUB WITH LANVIEW®
SUPPORTING 100 OHM UTP CABLE
MicroMMAC-24T
RESET
CPU ACT
MGMT
16 Mb/s
COM 1COM 2
DISPLAY
SPEED
16M4M TPIM
6 5 4 3 2 1
18 17 16 15 14 13
24 23 22 21 20 19
12 11 10 9 8 7
RI
LCD
TPIM
Slot
Ring Out

INTRODUCTION
1-2
describes how to install a TPIM and concludes with installation check-out
instructions.
Chapter 4,
Local Management , explains how to set up and use a
management terminal and a modem to access Local Management.
Chapter 5,
Troubleshooting , explains how to monitor the operation
performanceofthe MicroMMAC-TusingLANVIEW®LEDs and LCD’s.
It also explains how to access POWER UP diagnostic test information.
1.2 MicroMMAC-T OVERVIEW
The MicroMMAC-T is an intelligent, stackable Multi-Media Access
Center providing connectivity and SNMP management for up to 255
Token Ring users (Local Management for up to 120 Token Ring users) in
remote office environments. The MicroMMAC-T can be used in
conjunction with Cabletron’s STH HubSTACK series of stackable
non-intelligent hubs.
Figure 1-2 illustrates a typical MicroMMAC-T configuration scenario.
Attachable Bridge/Routing Interface Modules (BRIMs), incorporated as
seamlessentitieswithin theMicroMMAC-T,provideconnectivitynotonly
to standard Token Rings but also to Ethernet, FDDI,ATM, and WAN
environments, depending upon the BRIM types used.
TokenRingPort InterfaceModules(TPIMs)attachable at theRingIn/Ring
Out(RI/RO) ports provideconnectivity and expandedtrunkconnectionsto
a range of Token Ring media: Unshielded Twisted Pair (UTP), Shielded
Twisted Pair (STP), and Fiber.
By installing Cabletron’s MicroSNAC daughterboard in the
MicroMMAC-T, you can consolidate SNA/SDLC, BSC, LAN, and WAN
connectivity into a single unit.
Telnet support provides easy access to Local Management tools from any
TCP/IP based node on the network.
The MicroMMAC-T complies with the IEEE 802.5 standard and is fully
IBM Token Ring compatible. The remainder of this chapter discusses
MicroMMAC-T features in greater detail.