Cabletron Systems 7C04 Workgroup SmartSWITCH User manual

7C04 Workgroup
SmartSWITCH
™
Chassis
User’s Guide
9031700-01

Notice
i
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 February 1996 by:
Cabletron Systems, Inc.
35 Industrial Way
Rochester, NH 03867-0505
All Rights Reserved
Printed in the United States of America
Order Number: 9031700-01
LANVIEW and MMAC are registered trademarks of Cabletron
Systems, Inc.
MMAC SmartSWITCH is a trademark of Cabletron Systems, Inc.
CompuServe is a registered trademark of CompuServe Inc.
Ethernet is a trademark of Xerox Corp.
i960 microprocessor is a registered trademark of Intel Corp.

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.

Notice
iii
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 (VCCI) by Information Technology Equipment 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.

v
CONTENTS
CHAPTER 1 INTRODUCTION
1.1 USING THIS MANUAL .........................................................................1-1
1.2 USING THE SMARTSWITCH MANUAL SET ...................................1-1
1.3 CHASSIS OVERVIEW.............................................................................1-2
1.3.1 7X00 SmartSwitch Controller Module........................................1-3
1.3.2 SmartSwitch interface modules ...................................................1-3
1.3.3 Operations.......................................................................................1-4
1.4 SITE GUIDELINES ..................................................................................1-5
1.5 RELATED MANUALS............................................................................1-6
1.6 GETTING HELP.......................................................................................1-6
CHAPTER 2 INSTALLATION
2.1 UNPACKING THE 7C04 CHASSIS......................................................2-1
2.2 INSTALLING THE 7C04 CHASSIS IN AN EQUIPMENT RACK ...2-2
2.2.1 Attaching Mounting Brackets ......................................................2-2
2.2.2 Mounting the 7C04 Chassis..........................................................2-4
2.3 THE 7C04 CHASSIS POWER SUPPLY MODULE..............................2-5
2.3.1 Unpacking the Power Supply Module .......................................2-5
2.3.2 Installing the Power Supply Module..........................................2-5
2.3.3 Powering up the Power Supply Module....................................2-7
2.3.4 Removing the Power Supply Module ........................................2-8
CHAPTER 3 TROUBLESHOOTING
CHAPTER 4 TECHNICAL SPECIFICATIONS
4.1 SAFETY......................................................................................................4-1
4.2 EMI.............................................................................................................4-1
4.3 IMMUNITY...............................................................................................4-1
4.4 SERVICE....................................................................................................4-2
4.5 POWER......................................................................................................4-2
4.6 PHYSICAL ................................................................................................4-2
4.6.1 Dimensions .....................................................................................4-2
4.6.2 Weight .............................................................................................4-2
4.7 ENVIRONMENTAL................................................................................4-3

1-1
CHAPTER 1
INTRODUCTION
Welcome to Cabletron Systems 7C04 Workgroup SmartSwitch
Chassis User’s Guide . This manual describes the physical
characteristics, specifications, and capabilities of the 7C04
Workgroup SmartSwitch Chassis.
1.1 USING THIS MANUAL
Chapter 1,
Introduction
, discusses the features of the 7C04
Chassis.
Chapter 2,
Installation
, explains the 7C04 Chassis’ power supply
module, and how to install that power supply module.
Chapter 3,
Troubleshooting
, explains the LANVIEW
®
LEDs of the
7C04 Chassis’ power supply module.
Chapter 4,
Technical Specifications
, explains the location
requirements and operating specifications of the 7C04 Chassis.
1.2 USING THE SMARTSWITCH MANUAL SET
Each SmartSwitch interface module that can be inserted in the
7C04 Chassis is shipped with a module user’s guide. For example,
the 7E03-24 Ethernet SmartSwitch Interface Module User’s Guide
explains the physical characteristics, specifications, and installation
procedures of the 7E03-24 Module.
The management module of the 7C04 Chassis is described in the
7X00 SmartSwitch Controller Module User’s Guide. The user’s guide
explains the 7X00 Module’s physical characteristics, installation
procedures, and how to locally manage the SmartSwitch interface
modules in the chassis.
In addition, any local management information that is specific to a
particular SmartSwitch interface module, is described in a module
specific local management appendix. For example, the 7E03-24
Ethernet SmartSwitch Interface Module Local Management Appendix
explains information that is specific to local management of the
7E03-24 Module only.

1-2
Introduction
1.3 CHASSIS OVERVIEW
The 7C04 Chassis (Figure 1-1) is a rack-mountable, multi-media,
switching center. The chassis is a stand-alone device that features a
removable power supply. Two fans within the power supply
provide system cooling. LANVIEW LEDs on the power supply
indicate at-a-glance device status.
The chassis has four module slots. The slots are numbered from
top to bottom; the top slot is number one the bottom slot is number
four. The 7X00 Module must be inserted in the chassis’ top slot
(slot one). The other three slots can support nearly any
combination of Ethernet, Token Ring, FDDI, and ATM
SmartSwitch interface modules
1
.
Figure 1-1. 7C04Workgroup SmartSwitch Chassis
Data from each SmartSwitch interface module (regardless of front
panel technology) is relayed along the SmartSwitch Bus on the
7C04 Chassis’ backplane to the 7X00 Module. All switching
functions are performed by hardware components on the 7X00
Module. No external bridges or routers are required to transfer
data from one point to another within the chassis.
1.
A7E03-24 Module can not be inserted in the bottom slot (slot four) of a 7C04
Chassis.
FANS
SN
WorkGroup SmartSwitch
with SECURE FAST™ VIRTUAL NETWORKING
1
2
3
4
100-125V-3.8A
200-250V-1.9A
I

Introduction
1-3
1.3.1 7X00 SmartSwitch Controller Module
The 7X00 SmartSwitch Controller Module is the only processing
and management element in the 7C04 Chassis. The 7X00 Module
has no front panel data ports. All data enters and exits the 7X00
Module via the SmartSwitch Bus on the chassis’ backplane. The
7X00 Module directs incoming data to its intended destination by
using a group of Application Specific Integrated Circuits (ASICs)
collectively known as the SmartSwitch Core. All packet switching
functions are performed in the module’s SmartSwitch Core. The
SmartSwitch Core is capable of switching up to 750,000 frames per
second. The firmware on a 7X00 Module determines the
SmartSwitch Core’s operating mode (traditional switch or
SecureFast Packet Switch). The module’s CPU (an i960
microprocessor
®
) is used to collect management data of the
SmartSwitch system (including the status of the chassis’ power
supply and fans).
Note: The 7X00 Module is not hot-swappable. Because the 7X00
Module is the only processing/management module in the 7C04
Chassis, removing the 7X00 Module will sever communications
to all SmartSwitch interface modules in the 7C04 Chassis.
1.3.2 SmartSwitch interface modules
SmartSwitch interface modules in a 7C04 Chassis communicate
freely with each other via the chassis’ SmartSwitch Bus and 7X00
SmartSwitch Controller Module. SmartSwitch interface modules
can be installed or removed from the 7C04 Chassis at any time
without impacting the rest of the network.

1-4
Introduction
1.3.3 Operations
Data entering through a front panel of a SmartSwitch interface
module in the 7C04 Chassis is converted by the module’s
hardware into a common “canonical” format. Canonical frames are
forwarded along the chassis’ SmartSwitch Bus to the 7X00 Module
in slot one. The configuration of the 7X00 Module (either
traditional switch or SecureFast Packet Switch) determines the
manner in which frames are filtered or forwarded.
Traditional Switch
When operating as a traditional switch (a store-and-forward
switch using the 802.1d Spanning Tree protocol), the 7X00
Module’s SmartSwitch Core searches for the frame’s destination
address in the module’s connection table.
If the frame’s destination address is found in the connection table,
the frame is forwarded to that specific destination via the chassis’
SmartSwitch Bus.
If the frame’s destination address is not found in the connection
table, the frame is flooded to all of the SmartSwitch interface
modules in the chassis via the chassis’ SmartSwitch Bus. The
frame’s destination address is added to the module’s connection
table.
SecureFast Packet Switch
When operating as a SecureFast Packet Switch, the 7X00 Module’s
SmartSwitch Core searches for the frame’s destination address-
source address (DA-SA) pair and receive port in the module’s
connection table.
If the frame’s entry is found in the connection table, the frame is
forwarded to a specific destination via the chassis’ SmartSwitch
Bus.

Introduction
1-5
If the frame’s entry is not found in the connection table, a request is
sent to the system’s Virtual Network Services (VNS). The VNS
checks its virtual routing tables and policy sections. If the frame’s
information appears in the VNS’ virtual routing tables and the
VNS’ policy section contains an entry that verifies that the frame’s
source and the frame’s destination are a valid combination, then
the frame is forwarded to its destination via the chassis’
SmartSwitch Bus, and a corresponding entry is written to the
receiving module’s connection table. Otherwise, the frame is
dropped.
1.4 SITE GUIDELINES
When choosing a location for the 7C04 Chassis, the following
guidelines must be followed to ensure satisfactory network
performance.
• An unrestricted free surface area of 43.2 cm. (17 in.) wide,
34.8 cm. (13.7 in.) deep and 16 cm. (6.3 in.) high must be
available for the enclosure.
• If the chassis is to be placed on a shelf, the shelf must be capable
of supporting 13.5 kg. (30 pounds) of static weight.
• If the chassis is to be rack mounted, care must be taken to ensure
that the rack used will support the chassis and that the rack will
remain stable with the chassis inserted. In order to allow proper
cooling within the rack, there must be 7.6 cm. (3 in.) of clearance
above the unit and 5 cm. (2 in.) of clearance on either side of the
chassis in addition to the unrestricted free surface area
previously detailed.
• Astandard three-prong power receptacle must be located within
21.13 meters (7 feet) of the chassis.
• The temperature of the location surrounding the chassis must be
maintained between 5
° and 40 ° C (41 ° to 104 ° F). Temperature
changes of greater than 10
° C (18 ° F) per hour must not occur.