Nortel Networks 450 manual Features, Cascade Module Slot, Cooling Fans

BayStack 450 10/100/1000 Series Switches

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 configuration. BayStack 450 switches use a fail-safe cascade stacking architecture which, in the unlikely event of a switch failure, maintains 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 provide a total of 224 ports (when all 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 switch, 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)

•Store-and-forward switch: Full-performance forwarding at full line speed, using a 2.56 Gigabit/second switch fabric

•Learning rate: 3 million addresses per second (peak)

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