Users Guide

Table Of Contents
258 Stacking
Dell EMC Networking N1100-ON and N1500 Series switches do not stack
with different Dell EMC Networking Series switches or other Dell EMC
Networking switches. Dell EMC Networking N1124T-ON/N1148T-
ON/N1124P-ON/N1148P-ON Series switches only stack with other Dell EMC
Networking N1124T-ON/N1148T-ON/N1124P-ON/N1148P-ON Series
switches. Dell EMC Networking N1108T-ON/N1108P-ON switches do not
stack. Dell EMC Networking N1500 Series switches only stack with other
Dell EMC Networking N1500 Series switches.
Dell EMC Networking N3100-ON Series switches stack with Dell EMC
Networking N3000E-ON switches up to 12 units. Dell EMC Networking
N2200-ON switches stack with other N2200-ON switches. Dell EMC
Networking N3200-ON switches stack with other stacking-capable N3200-
ON switches up to 12 units.
How is the Management Unit in the Stack Selected?
A management unit in the stack is elected or re-elected based on the
following considerations, in order:
1
The switch is currently
the management unit in the stack
.
2
The switch has the higher MAC address.
3
A unit is selected as standby by the administrator, and a fail over action is
manually initiated or occurs due to
the failure of the management unit in
the stack
.
In most cases, a switch that is added to an existing stack will become a stack
member, and not the management unit in the stack. When a switch is added
to the stack, one of the following scenarios takes place regarding the
management status of the new switch:
If the switch has
the management unit in the stack
function enabled but
another
management unit in the stack
is already active, then the switch
changes its configured
management unit in the stack
value to disabled.
If the
management unit in the stack
function is unassigned and there is
another
management unit in the stack
in the system then the switch
changes its configured
management unit in the stack
value to disabled.
If the
management unit in the stack
function is enabled or unassigned
and there is no other
management unit in the stack
in the system, then
the switch becomes stack primary.