Administrator Guide

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DellEMC#
VLAN Interfaces
VLANs are logical interfaces and are, by default, in Layer 2 mode. Physical interfaces and port channels can be members of VLANs.
For more information about VLANs and Layer 2, see Layer 2 and Virtual LANs (VLANs).
NOTE: To monitor VLAN interfaces, use Management Information Base for Network Management of TCP/IP-based
internets: MIB-II (RFC 1213).
NOTE: You cannot simultaneously use egress rate shaping and ingress rate policing on the same VLAN.
Dell EMC Networking OS supports Inter-VLAN routing (Layer 3 routing in VLANs). You can add IP addresses to VLANs and use them in
routing protocols in the same manner that physical interfaces are used. For more information about configuring different routing protocols,
refer to the chapters on the specific protocol.
A consideration for including VLANs in routing protocols is that you must configure the no shutdown command. (For routing traffic to
flow, you must enable the VLAN.)
NOTE: You cannot assign an IP address to the default VLAN, which is VLAN 1 (by default). To assign another VLAN ID to
the default VLAN, use the default vlan-id vlan-id command.
To assign an IP address to an interface, use the following command.
• Configure an IP address and mask on the interface.
INTERFACE mode
ip address ip-address mask [secondary]
• ip-address mask: enter an address in dotted-decimal format (A.B.C.D). The mask must be in slash format (/24).
• secondary: the IP address is the interface’s backup IP address. You can configure up to eight secondary IP addresses.
interface Vlan 10
ip address 1.1.1.2/24
tagged GigabitEthernet 2/2-2/13
tagged GigabitEthernet 5/1
ip ospf authentication-key force10
ip ospf cost 1
ip ospf dead-interval 60
ip ospf hello-interval 15
no shutdown
!
Loopback Interfaces
A Loopback interface is a virtual interface in which the software emulates an interface. Packets routed to it are processed locally.
Because this interface is not a physical interface, you can configure routing protocols on this interface to provide protocol stability. You
can place Loopback interfaces in default Layer 3 mode.
To configure, view, or delete a Loopback interface, use the following commands.
• Enter a number as the Loopback interface.
CONFIGURATION mode
interface loopback number
The range is from 0 to 16383.
• View Loopback interface configurations.
EXEC mode
show interface loopback number
• Delete a Loopback interface.
CONFIGURATION mode
no interface loopback number
Many of the commands supported on physical interfaces are also supported on a Loopback interface.
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Interfaces