Users Guide

Parameters
stack-unit Enter the stack member unit identifier of the stack member to reset.
port Enter the keyword port then the port number to specify the port where fanout
mode is specified.
single Convert a single 100G port into one 40G port.
dual Split a single 100G port into two 50G ports.
quad Split a single 100G port into four 10G or four 25G ports or split a single 40G port
into four 10G ports
no-confirm (OPTIONAL) Enter the keywords no-confirm to reset any previous configuration
and apply the new configuration immediately. If you this option, the system does
not prompt you to confirm the deletion of any existing configuration.
Defaults Disabled.
Command Modes CONFIGURATION
Command
History
This guide is platform-specific. For command information about other platforms, see the relevant Dell
EMC Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S6100–ON.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.7(0.0) Added support for dynamically fanning-out of interfaces on S6000. Introduced on
the S6000–ON.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.1 Introduced on the S4810.
Usage
Information
You can split a 100G port into two 50G, one 40G, four 10G, or four 25G ports.
You can use the stack-unit portmode command to dynamically fan-out 100G ports into two 50G,
one 40G, four 10G, or four 25G ports and vice-versa without reloading a switch.
The port must be in a default configuration before it can be split. As the 100G port is lost in the
configuration when the port is split, ensure that you remove the port from other L2/L3 feature
configurations.
If you use a 40G LR4 or 40G LM4 optics, you can only convert a 100G port into a 1x40G port. LR4 and
LM4 optics do not support dual mode or quad mode configurations.
To convert a fanned-out port back to 100G, use the no form of the stack-unit portmode command.
Example
Example of converting a 100G port to 1x40G
DellEMC(conf)#stack-unit 1 module 1 port 1 portmode single speed 40G
Warning: Enabling Single mode on stack-unit 1 module 1 port 1. Please
verify whether the configs related to interface Hu 1/1/1 are cleaned up
before proceeding further.
[confirm yes/no]:yes
Single mode is enabled on stack-unit 1 module 1 port 1
DellEMC(conf)#Sep 18 05:16:49: %STKUNIT1-M:CP %IFMGR-5-DYNAMIC_FANOUT:
Port 1 in slot 1 has been fanned-out
Interfaces 711