Administrator Guide

• If you add a unit that has a stack number that conflicts with the stack, the stack assigns the first available stack number.
• If the stack has a provision for the stack-number that will be assigned to the new unit, the provision must match the unit type, or Dell
EMC Networking OS generates a type mismatch error.
After the new unit loads, it synchronizes its running and startup configurations with the stack.
Manually Assigning a New Unit to an Existing Stack
To manually assign a new unit a position in an existing stack, use the following steps.
1. On the stack, determine the next available stack-unit number, and the management priority of the management unit.
EXEC Privilege mode
show system brief or show system stack-unit
2. On the new unit, number it the next available stack-unit number.
EXEC Privilege mode
stack-unit stack-unit-number renumber stack-unit-new-number
3. (OPTIONAL) On the new unit, assign a management priority based on whether you want the new unit to be the stack manager.
CONFIGURATION mode
stack-unit stack-unit-number priority priority-number
4. Connect the new unit to the stack using stacking cables.
The following example shows adding a stack unit with a conflicting stack number (before).
Dell#show system brief
Stack MAC : 34:17:17:18:19:1e
Reload-Type : normal-reload [Next boot : normal-reload]
-- Stack Info --
Unit UnitType Status ReqTyp CurTyp Version Ports
---------------------------------------------------------------------------------
1 Management online S3148P S3148P 1-0(0-4679) 54
2 Standby online S3148P S3148P 1-0(0-4679) 54
3 Member not present
4 Member not present
5 Member not present
6 Member not present
7 Member not present
8 Member not present
9 Member not present
10 Member not present
11 Member not present
12 Member not present
-- Module Info --
Unit Module No Status Module Type Ports
---------------------------------------------------------------------------
1 1 online S3148P-10GE-2SFP+ 2
2 1 online S3148P-10GE-2X10BaseT 2
-- Power Supplies --
Unit Bay Status Type FanStatus FanSpeed(rpm)
---------------------------------------------------------------------------
1 1 up AC up 7888
1 2 down UNKNOWN absent NA
2 1 up AC up NA
2 2 absent absent NA
-- Fan Status --
Unit Bay TrayStatus Fan1 Speed Fan2 Speed
------------------------------------------------------------------------------------
1 1 up up 7164 up 7058
2 1 up up 6956 up 7058
Speed in RPM
Dell#
806
Stacking