Manual

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Catalyst 2975 Switch Hardware Installation Guide

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Chapter 2 Switch Installation

Planning a Switch Stack

If you plan to stack your switches, read these sections:

• Stack Guidelines, page 2-6

• Stack Cabling, page 2-6

• Stack Bandwidth and Partitioning Examples, page 2-8

• Power-On Sequence for Switch Stacks, page 2-9

Stack Guidelines

For general concepts and procedures see the switch software configuration guide on Cisco.com.

Before connecting the switches in a stack, keep in mind these guidelines:

• Connect only Catalyst 2975 switches in a switch stack. The Catalyst 2975 switch does not support

mixed stack configurations. You cannot stack Catalyst

2975 switches with Catalyst 3750 switches

or Catalyst 3750-E switches.

• Depending on your installation, you might need different cables sizes. If you do not specify the

length of the stack cable, the 0.5-meter cable is supplied. If you need the 1-meter or the 3-meter

cable, you can order it from your Cisco supplier. For cable part numbers, see the

“Stack Ports”

section on page 1-8.

• Access to the switch rear panel and to the rear of the rack. If you do not have access, cable the

switches before rack-mounting.

Stack Cabling

In Figure 2-1 the switches are stacked in a vertical rack or on a table. The connections are redundant.

Figure 2-1 Stacking Switches with the 0.5-meter Stack Cable

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