BFD for routes learned trough Route-servers in IXPs

Saku Ytti saku at
Thu Sep 17 18:06:41 UTC 2020

On Thu, 17 Sep 2020 at 20:51, Douglas Fischer <fischerdouglas at> wrote:

> Why should we spend CPU Cycles with 576K ARP Requests a day(2K participants, 5 min ARP-Timeout).
> Instead of 1.2K ARP Requests a day(2K participants, 4 hours ARP-Timeout)?
> I would prefer to use those CPU cycles to process other things like BGP messages, BFD, etc...

I think this communication may not be very communicative.

How many more BGP messages per day can we process if we do 1.2k ARP
requests a day instead of 576k? How many more days of DFZ BGP UPDATE
growth is that?


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