Cabletron Systems SmartStack STS16-20R User manual

SmartStack
STS16-20D/STS16-20R
Token Ring Switches
Installation
and
User Guide

i
Notice
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.
© October 1999 by:
Cabletron Systems, Inc.
35 Industrial Way
Rochester, NH 03867
All Rights Reserved.
Order Number: 9032956-01
(OC-7054 v. 1.1, 710001812)
SmartStack is a trademark of Cabletron Systems, Inc.
CompuServe is a registered trademark of CompuServe, Inc.
i960 microprocessor is a registered trademark of Intel Corp.
Ethernet is a trademark of Xerox Corporation.

ii
Notice
FCC Notice
This device complies with Part 15 of the FCC rules. Operation is subject to the following
two conditions: (1) this device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired
operation.
NOTE: This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment uses, generates, and can radiate radio
frequency energy and if not installed in accordance with the operator’s manual, may
cause harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause interference in which case the user will be required to
correct the interference at his own expense.
WARNING: Changes or modifications made to this device which are not expressly
approved by the party responsible for compliance could void the user’s authority to
operate the equipment.
VCCI Notice
This is a Class A product based on the standard of the Voluntary Control Council for
Interference by Information Technology Equipment (VCCI). If this equipment is used in
a domestic environment, radio disturbance may arise. When such trouble occurs, the user
may be required to take corrective actions.
Industry Canada 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.

iii
Notice
Declaration of Conformity
Addendum
Application of Council Directive(s): 89/336/EEC
73/23/EEC
Manufacturer’s Name: Cabletron Systems, Inc.
Manufacturer’s Address: 35 Industrial Way
PO Box 5005
Rochester, NH 03867
European Representative Name: Mr. J. Solari
European Representative Address: Cabletron Systems Limited
Nexus House,
Newbury Business Park
London Road, Newbury
Berkshire RG13 2PZ, England
Conformance to Directive(s)/Product Standards: EC Directive 89/336/EEC
EC Directive 73/23/EEC
EN 55022
EN 50082-1
EN 60950
Equipment Type/Environment: Networking Equipment, for use
in a Commercial or Light
Industrial Environment.
We the undersigned, hereby declare, under our sole responsibility, that the equipment
packaged with this notice conforms to the above directives.
Manufacturer Legal Representative in Europe
Mr. Ronald Fotino Mr. J. Solari
Full Name Full Name
Principal Compliance Engineer Managing Director - E.M.E.A.
Title Title
Rochester, NH, USA Newbury, Berkshire, England
Location Location

iv
Notice
Table of Contents
1. Introduction 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
Front Panel Details . . . . . . . . . . . . . . . . . . . . . . . . 5
The MANAGEMENT Port . . . . . . . . . . . . . . . . . . . 5
Token Ring Ports . . . . . . . . . . . . . . . . . . . . . . . 5
Reset Button . . . . . . . . . . . . . . . . . . . . . . . . . 6
System Request Button . . . . . . . . . . . . . . . . . . . . 6
Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Status and Activity LEDs . . . . . . . . . . . . . . . . . . . 7
Back Panel Details . . . . . . . . . . . . . . . . . . . . . . . . 9
Features and Specifications . . . . . . . . . . . . . . . . . . . 10
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Specifications . . . . . . . . . . . . . . . . . . . . . . . . 13
2. Switch Overview 17
Multiple Simultaneous Conversations . . . . . . . . . . . . . . 18
Low Latency . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Address Management . . . . . . . . . . . . . . . . . . . . . . 20
Multiple Bridging Modes . . . . . . . . . . . . . . . . . . . . . 21
Source Route Switching (SRS) . . . . . . . . . . . . . . . 22
Source Route Bridging (SRB) . . . . . . . . . . . . . . . . 22
Source Route Transparent (SRT) . . . . . . . . . . . . . . 23
SRT/SRB . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Congestion Control . . . . . . . . . . . . . . . . . . . . . . . 24
Three Switching Modes . . . . . . . . . . . . . . . . . . . . . 25
Cut-Through . . . . . . . . . . . . . . . . . . . . . . . . . 25
Store and Forward . . . . . . . . . . . . . . . . . . . . . 25
Auto (Adaptive Cut-Through) . . . . . . . . . . . . . . . . 25
Token Ring Port Operation Modes . . . . . . . . . . . . . . . 26
RI/RO-Like Connection on SmartStack STS16-20R . . . . . . 27
Transmission Priority Queues . . . . . . . . . . . . . . . . . . 28
ClearSession Support . . . . . . . . . . . . . . . . . . . . . . 28
CrossLink Connections . . . . . . . . . . . . . . . . . . . . . 29

v
Notice
Spanning Tree Protocol Support . . . . . . . . . . . . . . . . 30
VLAN Support . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Dynamic Source Route Recovery . . . . . . . . . . . . . . . . 32
Management . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
SNMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
SmartStack Manager for Windows . . . . . . . . . . . . . 36
Telnet Management and VT100 Management (Console) . . 36
IBM LAN Network Manager . . . . . . . . . . . . . . . . . 36
RMON Support . . . . . . . . . . . . . . . . . . . . . . . . . 37
Built-in Port Counters . . . . . . . . . . . . . . . . . . . . . . 39
Stackable Architecture . . . . . . . . . . . . . . . . . . . . . . 39
Back-to-Back . . . . . . . . . . . . . . . . . . . . . . . . 39
Internal Stacker . . . . . . . . . . . . . . . . . . . . . . . 39
External Stacker . . . . . . . . . . . . . . . . . . . . . . . 39
Optional Redundant Power Supply on
SmartStack STS16-20R . . . . . . . . . . . . . . . . . . . . . 40
3. Preparing for Installation 41
Safety Recommendations . . . . . . . . . . . . . . . . . . . . 41
Safety with Electricity . . . . . . . . . . . . . . . . . . . . 41
Preventing Electrostatic Discharge Damage . . . . . . . . 42
Site Requirements . . . . . . . . . . . . . . . . . . . . . . . . 43
Environment . . . . . . . . . . . . . . . . . . . . . . . . . 43
Chassis Accessibility . . . . . . . . . . . . . . . . . . . . 43
Cooling and Airflow . . . . . . . . . . . . . . . . . . . . . 43
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Configuration Guidelines . . . . . . . . . . . . . . . . . . . . 45
Frame Length Limit . . . . . . . . . . . . . . . . . . . . . 45
IEEE 802.1D Spanning Tree . . . . . . . . . . . . . . . . 46
Ring Numbers . . . . . . . . . . . . . . . . . . . . . . . . 47
Sample Uses of the SmartStack STS16-20RM Family Switches 48
Deployment Scenarios . . . . . . . . . . . . . . . . . . . . 51
4. Installation 55
Installation Summary . . . . . . . . . . . . . . . . . . . . . . 55
Package Contents . . . . . . . . . . . . . . . . . . . . . . . 56
Materials needed for Installation . . . . . . . . . . . . . . . . . 57
Mounting the Chassis . . . . . . . . . . . . . . . . . . . . . . 58
Rack or Cabinet Mounting . . . . . . . . . . . . . . . . . . 58
Table-Mounting . . . . . . . . . . . . . . . . . . . . . . . 59
Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Connecting Devices to the Token Ring Ports . . . . . . . . 60
Connecting Devices to the Token Ring Ports

vi
Notice
Using Building Wiring . . . . . . . . . . . . . . . . . . . . 61
Checking the Installation . . . . . . . . . . . . . . . . . . . . 62
Applying Power . . . . . . . . . . . . . . . . . . . . . . . . . 63
Stacker Link Module . . . . . . . . . . . . . . . . . . . . . . 65
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 65
SmartStack STS-LM Connectors and LEDs . . . . . . . . 66
Connecting the Stacker Link Cable . . . . . . . . . . . . . 66
Working with a Stack . . . . . . . . . . . . . . . . . . . . 67
Inter-box Parameters . . . . . . . . . . . . . . . . . . . . 67
Checking the Installation . . . . . . . . . . . . . . . . . . 68
5. Accessing Switch Management 69
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Connecting the Console . . . . . . . . . . . . . . . . . . . . . 70
Communication Problems . . . . . . . . . . . . . . . . . . 72
Diagnostic Screen . . . . . . . . . . . . . . . . . . . . . . 73
6. Switch Configuration 75
General Guidelines . . . . . . . . . . . . . . . . . . . . . . . 76
Navigating within the Menus . . . . . . . . . . . . . . . . 77
Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . 79
Switch Configuration Screen . . . . . . . . . . . . . . . . . . 80
Stack Configuration Screen . . . . . . . . . . . . . . . . . 83
Module Information Screen . . . . . . . . . . . . . . . . . 84
VLAN Configuration . . . . . . . . . . . . . . . . . . . . . . . 86
VLAN Configuration Menu . . . . . . . . . . . . . . . . . 87
VLAN Configuration Screen . . . . . . . . . . . . . . . . . 88
VLAN Parameter Configuration for CRF Screen . . . . . . 89
VLAN Parameter Configuration for BRF Screen . . . . . . 91
VLAN Port Configuration . . . . . . . . . . . . . . . . . . 93
IP Configuration Screen . . . . . . . . . . . . . . . . . . . . . 94
BootP Requests and Parameters . . . . . . . . . . . . . . 96
SNMP Configuration Menu . . . . . . . . . . . . . . . . . . . 97
Spanning Tree Protocol . . . . . . . . . . . . . . . . . . . . . 97
IEEE 802.1D Spanning Tree Protocol (STP) . . . . . . . . 98
Spanning Tree for BRF Screen . . . . . . . . . . . . . . . 99
Spanning Tree for CRF Screen . . . . . . . . . . . . . . . 101
Port Spanning Tree Parameters Screen . . . . . . . . . . 104
Current Spanning Tree Information Screen . . . . . . . . . 105
Port Configuration Screen . . . . . . . . . . . . . . . . . . . . 106
Switched Port Analyzer Menu from the Configuration Menu . . 110
CrossLink . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

vii
Notice
CrossLink Menu . . . . . . . . . . . . . . . . . . . . . . 112
CrossLink Configuration Screen . . . . . . . . . . . . . . 113
Setting up a CrossLink . . . . . . . . . . . . . . . . . . . 114
Current CrossLink Information Screen . . . . . . . . . . 115
Address Filtering . . . . . . . . . . . . . . . . . . . . . . . . 116
Filters and Port Security Menu . . . . . . . . . . . . . . 117
Configure Filters Screen . . . . . . . . . . . . . . . . . . 118
Configure Port Security Mode Screen . . . . . . . . . . . 120
View Port Filters Screen . . . . . . . . . . . . . . . . . . 121
Protocol Filters Menu . . . . . . . . . . . . . . . . . . . 122
Protocol Class Assignment Screen . . . . . . . . . . . . 123
Port Filtering Attributes Screen . . . . . . . . . . . . . . 124
Address Aging . . . . . . . . . . . . . . . . . . . . . . . . . 126
Address Aging Menu . . . . . . . . . . . . . . . . . . . 127
Port Address Table Aging Screen . . . . . . . . . . . . . 127
Master Address Table Aging Screen . . . . . . . . . . . 129
Password Menu . . . . . . . . . . . . . . . . . . . . . . . . 130
Console/Telnet Sessions . . . . . . . . . . . . . . . . . . . 132
Console Configuration Menu . . . . . . . . . . . . . . . 132
Serial Link Configuration Screen . . . . . . . . . . . . . 133
Creating a Console Session Using a Modem . . . . . . . 134
Stopping the Console Session . . . . . . . . . . . . . . . 134
Telnet Configuration Screen . . . . . . . . . . . . . . . . 135
Telnet Sessions Screen . . . . . . . . . . . . . . . . . . 136
Starting the Telnet Session . . . . . . . . . . . . . . . . 137
Stopping the Telnet Session . . . . . . . . . . . . . . . . 137
Involuntary Termination of the Telnet Session . . . . . . 137
Syslog Daemon Screen . . . . . . . . . . . . . . . . . . . . 139
DSRR Configuration . . . . . . . . . . . . . . . . . . . . . . 141
DSRR Group Configuration Screen . . . . . . . . . . . . 143
DSRR Configuration Screen . . . . . . . . . . . . . . . . 144
Download/Upload Menu . . . . . . . . . . . . . . . . . . . . 147
Serial Link Download Screen . . . . . . . . . . . . . . . 148
TFTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
TFTP Download/Upload Screen . . . . . . . . . . . . . . 150
Reset Screen . . . . . . . . . . . . . . . . . . . . . . . . . 152
7. Monitoring the Network from the Console Statistics
Menu 155
Statistics Menu . . . . . . . . . . . . . . . . . . . . . . . . 156
Switch Statistics Screen . . . . . . . . . . . . . . . . . . . . 157
Power Supply Information Screen . . . . . . . . . . . . . . . 159
Port Status Screen . . . . . . . . . . . . . . . . . . . . . . . 160

viii
Notice
Port Statistics Menu . . . . . . . . . . . . . . . . . . . . . . . 162
General Statistics Screen . . . . . . . . . . . . . . . . . . 163
802.5 Statistics Screen . . . . . . . . . . . . . . . . . . . 167
802.5 State Information Screen . . . . . . . . . . . . . . . 170
802.5 DTR MAC Information Menu . . . . . . . . . . . . . 172
TXI Information Screen . . . . . . . . . . . . . . . . . . . 173
Station-CPort Information Screen . . . . . . . . . . . . . . 175
Address Tables Menu . . . . . . . . . . . . . . . . . . . . . . 177
Master Address Table Screen . . . . . . . . . . . . . . . 178
Master Route Descriptor Table Screen . . . . . . . . . . . 180
VLAN Address Table Screen . . . . . . . . . . . . . . . . 182
VLAN Route Descriptor Table Screen . . . . . . . . . . . 183
Locate MAC Address Screen . . . . . . . . . . . . . . . . 184
Current Spanning Tree Information Screen . . . . . . . . . . . 185
Current Spanning Tree Information for a CRF Screen . . . 188
VLAN Statistics . . . . . . . . . . . . . . . . . . . . . . . . . 191
VLAN Statistics Screen for CRF . . . . . . . . . . . . . . 191
VLAN Statistics for BRF Screen . . . . . . . . . . . . . . 192
DSRR Status Screens . . . . . . . . . . . . . . . . . . . . . 193
DSRR Status Tables Screen . . . . . . . . . . . . . . . . 193
DSRR Neighbor Table Screen . . . . . . . . . . . . . . . 194
DSRR Acting as Backup Table Screen . . . . . . . . . . . 195
Diagnostic Test Results Screen . . . . . . . . . . . . . . . . . 196
Message Log Information Screen . . . . . . . . . . . . . . . . 197
Display Summary Screen . . . . . . . . . . . . . . . . . . . . 199
8. Monitoring the Network with SNMP 201
SNMP Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 201
IP Configuration Screen . . . . . . . . . . . . . . . . . . . . . 201
SNMP Configuration . . . . . . . . . . . . . . . . . . . . . . 202
SNMP Configuration Screen . . . . . . . . . . . . . . . . 202
Community Strings Screen . . . . . . . . . . . . . . . . . 203
Trap Receivers Screen . . . . . . . . . . . . . . . . . . . 205
List of Supported Traps from a STS16-20D/STS16-20R . . 206
9. Monitoring Port Traffic 211
Switched Port Analyzer Screen . . . . . . . . . . . . . . . . . 213
10. Troubleshooting 215
Obtaining Service . . . . . . . . . . . . . . . . . . . . . . 215
Troubleshooting in a Network . . . . . . . . . . . . . . . . 215
Start of Troubleshooting Process . . . . . . . . . . . . . . 215
Choosing a Troubleshooting Procedure . . . . . . . . . . 216