Ok, thank you, Jeffrey, for addressing my comments. Best regards,
Ines On Tue, Feb 18, 2025 at 4:02 PM Jeffrey Haas <jh...@pfrc.org> wrote: > My reply only had gone out to IDR, copying everyone else and catching some > missing text: > > > On Feb 17, 2025, at 4:26 PM, Jeffrey Haas <jh...@pfrc.org> wrote: > > Ines, > > Thanks for your review. > On 2/17/25 15:16, Ines Robles via Datatracker wrote: > > The document is well written, and I have some questions: > > 1- Consistent Brief Aggregation: What operational considerations or guidelines > do you suggest for selecting the designated origin AS in environments where > multiple candidate origins exist, such as in multi-homed or proxy aggregation > scenarios? > > It's difficult to offer strong advice here, because "that depends". > Fundamentally what we're interested in is that the operator chooses > something that will make sense for their environment. The most likely > scenario will be that the aggregating party is also the holder of the > address space for the aggregate. In such cases their own AS will likely be > the origin AS and they will discard the contributing AS_PATHs and originate > the aggregate using their own AS. > > For the other cases? It'll depend. The most likely case for including a > contributing downstream AS will be when the address space has been > partitioned and the proxy aggregation will be for a more specific network. > > An example could be provided, but the worry is that suggestions are read > overly strong as normative implementation advice. > > 2- In cases where consistent brief aggregation results in an empty AS_PATH, is > attaching the ATOMIC_AGGREGATE attribute sufficient to handle the resulting > loss of AS_PATH information? Or should operators implement additional measures > to ensure proper route validation and loop prevention? > > > ATOMIC_AGGREGATE is effectively vestigial. No one automatically > deaggregates. > > -- Jeff > > Jeff > > >
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