Administrator Guide

Switch Management Commands 2272
User Guidelines
This command is used to configure Ethernet ports to operate as either
stacking or Ethernet ports, or to configure stacking modules to operate as
Ethernet ports.
Once this command has been issued, the switch must be rebooted in order for
the command to take effect. Issuing multiple stack-port commands for a
single interface without intervening reboots results in undefined behavior and
is not supported. Reboot the switch and examine the output of the show
switch stack-ports command to determine the active configuration. The clear
config command does not change the stacking port mode. Only the stack-
port command can change the operating mode of the stacking port and it
only takes effect after a reboot.
The stack-port configuration mode does not appear in the running config.
Use the show switch stack-port command to display configuration and status
of stacking ports. Ports that are configured to operate as stacking ports will
show as detached in the show interfaces status command output.
Use the show switch command to display information regarding the switches
in a stack. Fortygigabitethernet ports are only supported on the N4000 series
switches. Redundant stacking links between any two units must operate at
the same speed. A 40G port configured in 4x10G mode is considered to be
operating at 10G speed.
Up to eight stack ports can be configured per stacking unit (four in each
direction).
The N4000 Series switches support up to twelve units configured in a stack
and can utilize 10GBaseT, SFP+ or QSFP connections for stacking. The
N2000/N2100-ON/N3000/N3100-ON Series switches support up to twelve
units configured in a stack and can only utilize the rear panel mini-SAS ports
for stacking. The N1100-ON and N1500 Series switches support stacking up
to four units in a stack and can utilize pairs of SFP+ ports for stacking.
On the N1100-ON/N1500 Series switch, configuring an SFP+ port as
stacking will always configure the adjacent port on the unit being configured
in stacking mode as well (i.e., configuring Te1/0/1 as stacking configures
Te1/0/2 as stacking and configuring Te1/0/3 as stacking configures Te1/0/4 as
stacking).