RE: what is loopback interface for ? [7:9493]

[FELIX KISSIEDU]

Looback interface is a logical interface on your router such that when your
router interface(s) goes down your loopback interface still stays up up. the
subnet mask normally assigned is 255.255.255.0 not 255.255.255.255 and this
is done so that only one Ip address can be assigned to the loobak interface.
It's normally used is ospf networks to configure your router(s) as
designated or backup designated router(s).


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