The set interface gigabit-ethernet routed-interface sub-interface command creates a sub-interface. When creating a sub-interface, VLAN ID needs to be specified at the same time.

Command Syntax

set interface gigabit-ethernet <interface-name> routed-interface sub-interface <sub-interface-name> vlan-id <vlan-id>

Parameter

Parameter	Description
gigabit-ethernet <interface-name>	Specifies a physical port name. The value is like ge-1/1/1, te-1/1/3, etc.
sub-interface <sub-interface-name>	Specifies the sub-interface name. The value could be up to 15 alphanumeric characters (including three special characters . – and @). NOTE: To avoid conflict with the preserved interface names, the routed interface name and sub-interface name must start with the string "rif-". Otherwise, commit will fail with the error message "The name of interface must start with "rif-".
vlan-id <vlan-id>	Specifies the VLAN ID. The value is an integer that ranges from 2 to 4094.

Usage Guidelines

Pay attention to the following precautions before configuring the sub-interfaces:

Enable the Ethernet port as a routed interface before configuring the sub-interfaces.
Define the VLAN ID by using the command set vlans vlan-id <vlan-id> before configuring the sub-interface and adding to VLAN.
The IP address for each sub-interface should be in a different subnet from all the other sub-interfaces under that parent interface. That is, the IP subnets of all the sub-interfaces should be unique under the same parent interface.
It is not supported to configure MTU on the sub-interfaces. The sub-interfaces use the MTU value configured on the parent interface.
On greyhound2 switches (including Dell N22xx series switches and N3208PX-ON), the sub-interface does not support user defined VRF and can only be used in the default VRF.
The sub-interface of LAG port does not support user defined VRF and can only be used in the default VRF.

Example

Create a sub-interface and add to VLAN 10.

admin@Xorplus# set interface gigabit-ethernet te-1/1/4 routed-interface enable true
admin@Xorplus# set interface gigabit-ethernet te-1/1/4 routed-interface name rif-te4
admin@Xorplus# set interface gigabit-ethernet te-1/1/4 routed-interface sub-interface rif-te4.1 vlan-id 10
admin@Xorplus# commit

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