I was wondering, when it is recommended to use BFD echo.
For example, does it make sense to apply it on underlay and/or overlay BGP.
And Arista CLI offers another bfd feature known as ‘ bfd per-link rfc-7130’, which seems to be applied between two MLAG peers on its port channel.
Arista deployment does also mention Link Fault Signalling and I was wondering to what extend this can be seen as alternative.
I would appreciate any guidance/advice on this matter.
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