Dell EMC SmartFabric OS10 User Guide Release 10.5.0

A Loopback interface is a virtual interface where the software emulates an interface. Because a Loopback interface is not associated to physical hardware entities, the Loopback interface status is not affected by hardware status changes.

Packets routed to a Loopback interface process locally to the OS10 device. Because this interface is not a physical interface, to provide protocol stability you can configure routing protocols on this interface. You can place Loopback interfaces in default L3 mode.

• Enter the Loopback interface number in CONFIGURATION mode, from 0 to 16383.

  interface loopback number

• Enter the Loopback interface number to view the configuration in EXEC mode.

  show interface loopback number

• Enter the Loopback interface number to delete a Loopback interface in CONFIGURATION mode.

  no interface loopback number

OS10# show interface loopback 4
Loopback 4 is up, line protocol is up
Hardware is unknown.
Interface index is 102863300
Internet address is 120.120.120.120/24
Mode of IPv4 Address Assignment : MANUAL
MTU 1532 bytes
Flowcontrol rx false tx false
ARP type: ARPA, ARP Timeout: 240
Last clearing of "show interface" counters : 00:00:11
Queuing strategy : fifo
    Input 0 packets, 0 bytes, 0 multicast
    Received 0 errors, 0 discarded
    Output 0 packets, 0 bytes, 0 multicast
    Output 0 errors, Output 0 invalid protocol
Time since last interface status change : 00:00:11