Switch Stacking And Power Stacking Guidelines - Cisco Catalyst 3850 Hardware Installation Manual

Switch Installation

Switch Stacking and Power Stacking Guidelines

Before connecting the switches in a stack, keep in mind these stacking guidelines:
• Size of the switch and any optional power-supply module. The 1100-W power-supply module is longer
• Length of cable. Depending on the configurations that you have, you might need different-sized cables.
• For rack-mounted switch stacks that are members of a StackPower stack as well as a data stack, see
• You can create data stacks with up to nine switches in a stack.
Note Special considerations for the following switch models:
• WS-C3850-24XS-E
• WS-C3850-24XS-S
• WS-C3850-24XU-E
• WS-C3850-24XU-L
• WS-C3850-24XU-S
• WS-C3850-12X48U-L
• WS-C3850-12X48U-S
• WS-C3850-12X48U-E
Information:
• If you set up a stack with these switches, the stack can have a maximum of 8 switches only. Each of the
• If you set up a stack that contains the above switches and other Catalyst 3850 switches, ensure that the
Note The Catalyst WS-C3850-48XS switch models do not support power stacking.
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than the other modules. Stacking switches with the same power-supply modules together makes it easier
to cable the switches.
If you do not specify the length of the StackWise cable, the 0.5-meter cable is supplied. If you need the
1-meter cable or the 3-meter cable, you can order it from your Cisco supplier. For cable part numbers,
see StackWise Ports, on page
of recommended configurations.
Planning a StackPower Stack, on page
above switch models have 4 ASIC chips, and the maximum number of ASIC chips per stack cannot
exceed 32.
maximum number of ASIC chips is 32.
25. The Data Stack Cabling Configurations, on page 38
40.
Catalyst 3850 Switch Hardware Installation Guide
Switch Stacking and Power Stacking Guidelines
provides examples
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