Re: [Idr] WG Adoption call for draft-spaghetti-idr-bgp-sendholdtimer-09 (2/28/2023 to 3/14/2023)

[Claudio Jeker <[e-mail]>]

On Tue, Mar 07, 2023 at 10:20:41AM +0100, Robert Raszuk wrote:
> >
> > This draft is trying to detect that the receiver isn't reading from the
> > socket but still sending valid BGP keepalives etc.
> 
> 
> But we discussed this ... If network is stable and you are only putting
> keepalives say every 60 sec it will be hours before the socket buffer get's
> filled and you get first notification about it to local BGP process.
> 
> How is the solution presented in this draft helpful ?

In a perfect world there is no need for this. In a perfect world there is
no need for a lot of things because everything always works.

The goal here is to detect the one system among many thousands that
missbehaves. It is the safety valve to trigger before the issue becomes
too big to result in meltdown. It is not pretty, it is not prefect but it
damn sure works, every time, for many reasons. This is what engineering is
about, a solution that is simple, works and ensures that the problem does
not grow out of hand.

Yes, the detection requires the buffers to fill up, but that is fine. If
there is a lot of UPDATE traffic the event happens sooner. If there
is no UPDATE traffic at all then it matters less that it takes more time.
The systems are mostly in sync anyway.

-- 
:wq Claudio