On Wed, 29 Sept 2021 at 22:07, Jean St-Laurent via NANOG <nanog@nanog.org> wrote:
> Thanks a lot for sharing. > > So 100 Gbps at line rate with 80B frames is about ~150 Mpps. > > 100 Gbps at line rate with 208B frames is about ~60 Mpps. > > It's a significant penalty. > Full rate small packets would be an attack of some kind and could only realistically arrive at your transit and peering ports. The customers usually have slower (relatively) ports and a single customer could not produce a rate of small packets that would be a concern. Therefore uRPF at customer ports should not be a problem in this regard. Regards, Baldur