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Re: [Idr] BGP Message level ACKs

Robert Raszuk <robert@raszuk.net> Thu, 09 March 2023 19:17 UTC

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From: Robert Raszuk <robert@raszuk.net>
Date: Thu, 09 Mar 2023 20:17:09 +0100
Message-ID: <CAOj+MMFhvFq22ckiY4jQ5baRKhv9angEj7ZnvhrHkR2tv3DNEQ@mail.gmail.com>
To: Gert Doering <gert@space.net>
Cc: tom petch <ietfc@btconnect.com>, "idr@ietf. org" <idr@ietf.org>
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Subject: Re: [Idr] BGP Message level ACKs
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The ACKs can be sent periodically and simply indicate that "We got at least
one MESSAGE from you (the peer)"  And by MESSAGE we would also count plain
BGP KEEPALIVES MESSAGES.

We could send it every 200 sec. And peer can drop the session when N such
ACKs is missing.

Actually I thought more about it today and will write an even further
simplified proposal for everyone to comment. (If my batteries last
tonight).

Cheers,
R.



On Thu, Mar 9, 2023 at 8:11 PM Gert Doering <gert@space.net> wrote:

> Hi,
>
> On Thu, Mar 09, 2023 at 06:22:50PM +0100, Robert Raszuk wrote:
> > Actually I would not do the timer (if you mean timer in seconds) ...
> > Instead I would just use counter based and drop the session after
> missing N
> > ACKs.
>
> How would that work for your example "the withdraw of the all-important
> /16 is not processed" if there is not enough churn to accumulate missing
> *N* ACKs?
>
> (And if there *is* sufficient churn, SendHoldTimer will do the job just
> fine).
>
> Gert Doering
>         -- NetMaster
> --
> have you enabled IPv6 on something today...?
>
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