Users Guide

Managing QSFP Ports 235
8
Managing QSFP Ports
Dell EMC Networking N3100-ON and N4000 Series Switches
QSFP ports available on Dell EMC Networking N4000 Series switches can
operate in 1 x 40G mode or in 4 x 10G mode. Appropriate cables must be
used that match the selected mode. When changing from one mode to
another, a switch reboot is required. The QSFP ports also support stacking
over the interfaces in either 1 x 40G or 4 x 10G mode. Changing from
Ethernet mode to stacking mode and vice-versa requires a reboot as well.
Two QSFP ports are available on Dell EMC Networking N3100-ON Series
switches in a plug-in module. These port can operate in 1 x 40G mode only
and do not support stacking. A separate stacking module is available.
The ports on a QSFP plugin module are named Fo1/1/1-2 in 40-Gigabit mode
and Te1/1/1-8 in 10-Gigabit mode. On the N4064, the fixed QSFP ports are
named Fo1/0/1-2 in 40-Gigabit mode and Te1/0/49-56 in 10-Gigabit mode.
All of the possible populated or configured interfaces will show in the show
interfaces status command regardless of the port mode, i.e. 40-Gigabit or
10-Gigabit. Unpopulated or unconfigured interfaces for plug in modules do
not show in the show interfaces status command.
The default setting for a 40-Gigabit Ethernet interface is nonstacking,
40-Gigabit Ethernet (1 x 40G).
The commands to change 1 x 40G and 4 x 10G modes are always entered on
the 40-Gigabit interfaces.
The commands to change the Ethernet/stack mode are entered on the
appropriate interface (tengigabitethernet or fortygigabitethernet). It is
possible to configure some of the 10G ports in a 40G interface as stacking and
not others.
To reconfigure a QSFP port, select the 40-Gigabit port to change in Interface
Config mode and enter the hardware profile portmode command with the
selected mode. For example, to change a 1 x 40G port to 4 x 10G mode, enter
the following commands on the forty-Gigabit interface:
console(config)#interface fo1/1/1
console(config-if-Fo1/1/2)#hardware profile portmode 4x10g