[FROG] What's this 'interface' mean in 'neighbor' configure node ?

[Simon Jones]

Hi all,

I found this is new in FRR compared to QUAGGA, what's this used for ? Why I
should config interface first ? Is there some DOC about this ?

# neighbor 1.1.1.1/24
> ...
>   interface                  Enable BGP on interface


# neighbor 1.1.1.1/24 remote-as 5001
> % Create the peer-group or interface first or specify "interface" keyword
> % if using an unnumbered interface neighbor


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Simon Jones
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