CLI Guide

Version Description
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 to 1x40G
Dell(conf)#stack-unit 1 port 1 portmode single speed 40G
Warning: Enabling Single mode on stack-unit 1 port 1. Please
verify whether the configs related to interface Hu 1/1 are
cleaned up before proceeding further.
[confirm yes/no]:yes
Single mode is enabled on stack-unit 1 port 1
Dell(conf)#Sep 18 05:16:49: %STKUNIT1-M:CP %IFMGR-5-
DYNAMIC_FANOUT: Port 1 in slot 1 has been fanned-out
Example of converting a 100G port to 2x50G
Dell(conf)#stack-unit 1 port 1 portmode dual speed 50G
Warning: Enabling Dual mode on stack-unit 1 port 1. Please
verify whether the configs related to interface Hu 1/1 are
cleaned up before proceeding further.
[confirm yes/no]:y
Dual mode is enabled on stack-unit 1 port 1
Dell(conf)#Sep 18 05:19:51: %STKUNIT1-M:CP %IFMGR-5-
DYNAMIC_FANOUT: Port 1 in slot 1 has been fanned-out
switchport
Place an interface in Layer 2 mode.
Syntax
switchport [[backup interface {interface | port-channel
number}] | mode private-vlan {host | promisucous | trunk}]
To remove an interface from Layer 2 mode and place it in Layer 3 mode, enter the
no switchport command. If a switchport backup interface is configured, first
738
Interfaces