Administrator Guide

Usage
Information
Splitting a 40G port into 4x10G port is supported on standalone and stacked units. stack-unit
stack-unit port number portmode quad dynamically fan-out 40G ports to 10G ports and vice-
versa without reload in switch.
The quad port must be in a default configuration before it can be split into 4x10G ports. The 40G port is
lost in the config when the port is split, so be sure that the port is also removed from other L2/L3 feature
configurations.
The system must be reloaded after issuing the CLI for the change to take effect.
This command cannot be used if LR4 optics are inserted on the 40G interface.
Example (stack
unit – Warning
message when
13 ports are
configured in any
port range)
Dell(conf)#stack-unit 0 port 48 portmode quad
Maximum number of ports that can be made Quad mode in the range <0-63>
is configured. Ports 52,56,60, will be disabled on reload.
Do you wish to continue? [confirm yes/no]:yes
Please save and reset unit 0 for the changes to take effect.
Dell(conf)#
switchport
Place an interface in Layer 2 mode.
Z9000
Syntax
switchport [backup interface {gigabit slot/port | tengigabit slot/port |
fortyGigE slot/port | port-channel number}]
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 remove the backup configuration. To
remove a switchport backup interface, enter the no switchport backup interface {gigabit
slot/port | tengigabit slot/port | fortyGigE slot/port | port-channel
number} command.
Parameters
backup interface Use this option to configure a redundant Layer 2 link without using Spanning
Tree. The keywords backup interface configures a backup port so that if the
primary port fails, the backup port changes to the up state. If the primary later
comes up, it becomes the backup.
tengigabit Enter the keyword tengigabit if the backup port is a 10G port.
fortyGigE Enter the keyword fortyGigE if the backup port is a 40G port.
port-channel Enter the keywords port-channel if the backup port is a static or dynamic port
channel.
slot/port Specify the line card and port number of the backup port.
Defaults Disabled (The interface is in Layer 3 mode.)
Command Modes INTERFACE
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.7(0.0) Introduced on the S6000-ON.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
Interfaces 547