You get the following output on the Console :

$000057$: $\%$LINK$-3-$UPDOWN: Interface

GigabitEthernet$0/0,$ changed state to up

$000058$: $\%$LINEPROTO$-5-$UPDOWN: Line protocol on

Interface GigabitEthernet$0/0,$ changed state to up

Which severity level will produce informational messages $?$

debugging errors

notifications

alerts critical