Stack Unit Identification

Stack units are identified by numbers 1 though 12. You can display stack unit IDs by entering the show stack command.

A new device (one that has not been connected in a stack or that has not been manually assigned a stack unit number) ships with a default number of 1. Once you enable stacking and the unit becomes part of a stack, its default stack unit number changes to the lowest available number in the stack. You can configure the stack suggested-id command in a standalone unit before it joins a stack to assign this unit the suggested ID.

Stack units must each have a unique identification number. Every stack member, including any standalone units, retains its stack unit number unless that number is already being used in the stack, or until you manually renumber the unit using stack interactive-setup. For more information about how to renumber stack IDs using stack interactive-setup, refer to Changing stack unit IDs with stack interactive-setup.