C ONTENTS
A
BOUT
T
HIS
G
UIDE
Introduction 1
How to Use This Guide 1
Conventions 1
Related Publications 2
1
O
VERVIEW
About the SuperStack
™
II Switch 2000 TR 1-1
System Benefits 1-1
System Features 1-2
Summary of Features 1-3
Typical Applications of Token Ring Switching 1-4
Ring Segmentation 1-5
The Front Panel 1-6
RJ-45 Ports 1-7
Front Panel LEDs 1-7
LCD Display Buttons 1-7
The Rear Panel 1-8
Power Socket 1-9
Serial Number 1-9
Redundant Power System Connector 1-9
Reset Button 1-9
Console Port 1-9
Optional Slide-In Modules 1-9
The ATM Module 1-9
Benefits of an ATM 1-9
Summary of ATM Features 1-10
The FDDI Module 1-10
Benefits of FDDI 1-11
Summary of FDDI Module Features 1-11
The Token Ring-in-Fast Ethernet (TR-in-FE) Module 1-11
Benefits of TR-in-FE 1-11
Summary of TR-in-FE Module Features 1-12
Migrating to High-speed Technologies 1-13
High-speed Cascade Connectors 1-14
Token Ring Switching Concepts 1-14
Why Token Ring Switching? 1-14
Source Route Bridging (SRT) 1-14
Transparent Bridging (TP) 1-15
Bridge Table 1-15
Source Route Transparent Bridging 1-16
Spanning Tree 1-16
802.1d Spanning Tree 1-16
IBM Spanning Tree 1-16
Congestion Control 1-17
Forwarding Modes 1-17
VLANs 1-18
Advantages of VLAN 1-18
2
G
ETTING
S
TARTED
Important Safety Information 2-1
Positioning the Switch 2000 TR 2-2
Considerations for Placement 2-2