302401-D Rev 00 xxi

Preface

Congratulations on your purchase of the BayStack 450 switch, part of the
Nortel Networks® BayStack 10/100/1000 Switch line of communications
products.
There are three versions of the BayStack 450 switch: the Model 450-24T, the
Model 450-12T, and the Model 450-12F. This guide describes the features, uses,
and installation procedures for the three versions. (Unless otherwise specified, the
terms “Bay Stack 450 switch ” and “switch” refer to all switch versions.)
BayStack 450 switches include a dedicated Uplink Module slot for attaching
optional media dependent adapters (MDAs) that support a range of media types,
including gigabit Ethernet. Installation instructions are included with each MDA
(see your Nortel Netwo rks sales rep resentative for orderin g information).
For more information about the MDAs, see Appendix C, “Media Dependent
Adapters.”
BaySta ck 45 0 swi tch es c onfigured wit h BaySt ac k 450 s oft ware v ersion V1.1.0 or
later provide Fail-Safe stackability when you install the optional BayStack
400-ST1 Cascade Module. Installation instructions are included with each
BayStack 400-ST1 Cascade Module (see your Nortel Networks sales
representative for ordering information).
For more information about the BayStack 400-ST1 Cascade Module, see “Stack
Operation” on page 1-23.

Audience

This guide is intended for network installers and system admini strators who are
responsible for installing, configuring, or maintaining networks. This guide
assume s th at you understand the t ran smis si on and management pro toc ol s use d on
your network.
kombk.book Page xxi Tuesday, June 29, 1999 3:25 PM