Users Guide

Usage Information
You can split a 40G port into four 10G ports.
You can use the stack-unit portmode command to dynamically fan-out 40G ports into 10G ports and vice-
versa without reloading a switch.
The port must be in a default conguration before it can be split. As the 40G port is lost in the conguration when
the port is split, ensure that you remove the port from other L2/L3 feature congurations.
You cannot use this command if you use an LR4 optics.
The following guidelines apply to the splitting of 40GbE QSFP+ ports into four 10GbE SFP+ ports by using the
stack-unit portmode command on the S6000 or S6000–ON platform.
• For S6000–ON, the default ports on quad-port-prole are
2,4,6,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,27,29,31. For example, stack-unit 1 quad-port-
profile 2,4,6,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,27,29,31.
Example (stack unit
– Warning message
when 13 ports are
congured 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.
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 congured, rst remove the backup conguration. To remove a switchport backup
interface, enter the no switchport backup interface command.
Parameters
backup (OPTIONAL) Use this option to congure a redundant Layer 2 link without using Spanning
Tree. The keyword backup congures 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.
interface interface (OPTIONAL) Enter any of the following keywords and the interface information:
• For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then
the slot/port/subport information.
• For a 40-Gigabit Ethernet interface, enter the keyword fortyGigE then the slot/
port information.
port-channel (OPTIONAL) Enter the keywords port-channel if the backup port is a static or
dynamic port channel.
mode (OPTIONAL) Enter the keyword mode to set the interface mode.
private-vlan (OPTIONAL) Enter the keywords private-vlan to set the interface mode to private
VLAN mode.
722 Interfaces