On 4 Jun 2024, at 7:36, Ron B via zanog-discuss wrote:
Maybe someone can help?
Assume IP Transit A and IP Transit B. Ingesting routes from both.
You are ingesting routes from both or both the Transit providers are accepting your advertised prefixes?
Transit B has a path failure but still advertises routes as preferable.
If you can be more clear to avoid assumptions.
Are you saying Transit B is still advertising prefixes towards you and you are preferring them because of your routing policy or you are advertising prefixes outwards to Transit B and they are onwards advertising them and this is still seen as the best path by the rest of the internet?
They should stop advertising those routes but don’t.
If a path breaks completely and routes are being advertised over that path that would be interesting to see. If the path is “broken” as in congested that is different.
How does a person fix this cock up??? There should be an easier way than dropping Transit B until they fix their path.
More detail would help but if you are saying prefixes are being advertised across a path that is truly broken that is a cock up.
To answer your first question, there are someones on this list that have enable on the large African transit providers that can probably help if the cock up is there. or those someones will know someones at upstreams to get them to help