Installation guide

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Catalyst 3750 Switch Hardware Installation Guide
OL-6336-01
Chapter 2 Switch Installation
Planning the Stack
Planning the Stack
If you plan to stack your switches, read these sections:
• Planning Considerations, page 2-11
• Powering Considerations, page 2-12
• Cabling Considerations, page 2-12
• Recommended Cabling Configurations, page 2-14
Planning Considerations
Before connecting the Catalyst 3750 switches in a stack, observe these planning
considerations:
• Size of the switch. For switch dimensions, see Appendix A, “Technical
Specifications.” Some switches are deeper than the other switches. Stacking
together switches of the same size will make it easier to cable the switches.
• Length of cable. Depending on the configurations you have, you might need
different sized cables. If you don’t specify the length of the StackWise cable,
the 0.5-meter cable is supplied. If you require the 1-meter cable or 3-meter
cable, you can order it from your Cisco supplier. For cable numbers, see the
“StackWise Ports” section on page 1-27. The “Recommended Cabling
Configurations” section on page 2-14 provides examples of recommended
configurations.
• Access to the rear ports for unrestricted cabling.
Make sure that there is access to the rear of the rack if you are planning to
stack the switches. If you do not have access to the rear panel, make sure you
cable the switches before you rack-mount them.
• For concepts and procedures to manage switch stacks, see the switch software
configuration guide.