BayStack 450 10/100/1000 Series Switches
302401-D Rev 00 1-11
Cascade Module Slot
The Cascade Module slot allows you to attach an optional BayStack 400-ST1
Cascade Module to the switch (see Stack Operation” on page 1-23).
You can connect up to eight BayStack 450 switches into a redundant stack
conf igu ration. Bay Stack 4 50 switches use a f ail-sa fe cascad e stac king arch itectur e
whic h, in the unlikely event of a switch failure, maintain s the integrity of the
remaining stack: all signals are looped back at the point of failure. Because each
unit in the stack has a full copy of the stack configuration, operation of the stack
continues without affecting application connectivity.
Any mix of up to eight BayStack 450 switches and BayStack 410-24T switches
can be stacked to provid e a tot al of 224 por ts ( wh en al l MDA slots are configured
with the maximum port availability).
Installation instructions are provided with each BayStack 400-ST1 Cascade
Module (see Installing the BayStack 400-ST1 Cascade Module).
See your Nortel Networks sales representative for ordering information.
Cooling Fans
The variable-speed cooling fans (not shown) are located on one side of the
BayStack 450 switch to provide cooling for the internal components. When you
install the swit ch, be sure to allow enough space on both sides of the switch for
adequate air flow.

Features

BayStack 450 switches provide wire-speed switching that allows
high-performance, low-cost connections to full-duplex and half-duplex
10/100/1000 Mb/s Ethernet local area networks (LANs).
BayStack 450 switches offer the following features:
High-speed forwarding rate: up to 3 million packets per second (peak)
Sto re-an d-forward switch: Full-pe rformance forwarding at full line speed,
using a 2.56 Gigabit/second switch fabr ic
Learning rate: 3 million addresses per second (peak)
kombk.book Page 11 Tuesday, June 29, 1999 3:25 PM