[RPKI] offlist Re: Changing RPKI state

[Mikael Abrahamsson]

On Thu, 25 Feb 2021, Luuk Hendriks via RPKI wrote:

> Hi Mikael,
>
> Fair question, and probably something that should be better explained on
> the page itself: rpki.today gives you a diff between $time_A and
> $time_B. E.g. by default, when landing on the page, that will be
> $24h_ago and $now, if you will. If in the mean time something
> disappeared and appeared again (with the exact same prefixes and ASID),
> it will not show up in the diff.
>
> So this is indeed expected behavior.

Sorry, I intended to send this to you offlist but ... I failed.

Anyhow, my point was about definition of "disappeared". Did something 
disappear if the server wasn't reachable and thus it's unknown what the 
state is?

One way to look at it: If I can't get it (timeout), it's not there.

Another way to look at it: If I can't get it (timeout), I have no idea, 
I'll presume last known state is still true and I'll presume anything I 
fetched previously is still relevant until it expires.

So basically, should the tool behave like it has a cache or should it 
behave like if it's cold-starting each time.

Thanks.

-- 
Mikael Abrahamsson    email: swmike at swm.pp.se