Considerations About Using “clear config” in a Stack
Fixed Switch Configuration Guide 2-3
4. (Optional) If desired, change the management unit using the set switch movemanagement
command, and/or change the unit numbering with the set switch member command.
5. Once the desired master unit has been selected, reset the system using the reset command.
6. After the stack has been configured, you can use the show switch unit command to physically
identify each unit. When you enter the command with a unit number, the MGR LED of the
specified switch will blink for 10 seconds. The normal state of this LED is off for member units
and steady green for the manager unit.
Installing Previously-Configured Systems in a Stack
If member units in a stack have been previous members of a different stack, you may need to
configure the renumbering of the stack. All units must be running the same primary and backup
firmware images.
1. Power down the switches in the existing stack.
2. Stack the units in the method desired, and connect the stack cables.
3. Power up only the unit you wish to be manager.
4. Once the management unit is powered up, log into the CLI, and use the show switch
command to display stacking information.
5. Clear any switches which are listed as “unassigned” using the clear switch member
command.
6. Power up the member of the stack you wish to become unit 2. Once the second unit is fully
powered, the COM session of the CLI will state that a new CPU was added.
7. Use the show switch command to redisplay stacking information.
a. If the new member displays as unit 2, you can proceed to repeat this step with the next
unit.
b. If the new member displays a different unit number, you must:
(1) Renumber the stack using the set switch renumber command, then
(2) Clear the original unit number using the clear switch member command.
Avoid directly reassigning a different unit number to the stack manager, or by design, the
stack configuration will revert to defaults.
8. Repeat Step 7 until all members have been renumbered in the order you desire.
9. After the stack has been reconfigured, you can use the show switch unit command to
physically confirm the identity of each unit. When you enter the command with a unit
number, the MGR LED of the specified switch will blink for 10 seconds. The normal state of
this LED is off for member units and steady green for the manager unit.
Adding a New Unit to an Existing Stack
Use the following procedure for installing a new unit into an existing stack configuration. This
procedure assumes that the new unit being added has a clean configuration from manufacturing
and is running the same primary and backup firmware image versions as other units in the stack.
1. Ensure that power is off on the new unit being installed.
2. Use one of the following methods to complete stack cable connections:
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