On 20/05/2019 17:57, Tobi <jahli...@gmx.ch> wrote:
- BGP routing issues (ex from Provider 1 you can reach target and from provider 2 not)
That happens, but very rarely in my experience. In any case, it's the responsibility of the authoritative domain owner to host their domain on at least two different ASes (RFC 2182), if they care about people being able to resolve it.
- per SRC limits on the recipient side
An authoritative server with that sort of limit, such as could affect a single end-user site, would be completely broken IMO.
If you can replicate this issue, then I think it would be worth drilling down further with tests to prove or disprove these theories. It sounds more likely that the problem is local to you, either in your network, or with your upstream provider - especially if this affects a wide range of domains and not just a specific few. However, routing issues in your part of the world may be different to what I see here (in the UK).
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