Flapping Transport

Wed Aug 2 04:25:24 UTC 2023

On 8/1/23 20:37, Jared Mauch wrote:

> Some providers have a much more disruptive layer-1 infrastructure and will ask you to configure a 1s+ up timer.  I think there’s an interesting question that could go either way, do you want transport side faults to be exposed to you, or should the client interface in a system be held up so you don’t have that fault condition forward (sometimes called FDI) to the client interface.

In general, I think operators want to see the link go down if there is 
an issue with the transport network.

This also helps with features like BGP Next Hop Tracking.

 From a wider backbone view, BGP PIC would be helpful in such cases, 
especially when combined with Best External or Add-Paths.

Mark.