[Kea-users] max-unacked-clients definition

[Kraishak Mahtha]

Hi Darren,

However, it is still a tool-based test, right? I tried using the actual
clients i.e from the laptops and tcpdump shows the time elapsed seconds are
greater than 10 seconds.

My major doubt or concern is why my packet/client is not considered as an
unacked-client, or if it is a valid unacked-client is the kea-dhcp unable
to increase its counter (do I need to add any config more to work as it
expected?).

Do we have any specific log file where I can check for this unacked-client
thing?

Thanks
Kraishak



On Fri, Jun 23, 2023 at 4:47 PM Darren Ankney <darren.ankney at gmail.com>
wrote:

> Hello all,
>
> A better way to test this would be with perfdhcp
> (https://kea.readthedocs.io/en/kea-2.2.0/man/perfdhcp.8.html) with
> something like this:
>
> perfdhcp -4 -y 10 -Y 3600 -r 1 -R 5 -p 3700 -t 60 -l <interface>
>
> You'd need a linux install (virtual on your windows computer would be
> fine as long as using bridged adapter of some kind) to install
> perfdhcp which is part of Kea.  The relay agent should pick up and
> forward (it should be broadcast, in any case, if your DHCP servers are
> local).  In either case, both servers should see the packets.  When
> you shut one of them down, the packets sent by perfdhcp will already
> have increased secs field content.
>
> Thank you,
>
> Darren Ankney
>
> On Fri, Jun 23, 2023 at 6:23 AM Kevin P. Fleming
> <lists.kea-users at kevin.km6g.us> wrote:
> >
> > On Fri, Jun 23, 2023, at 06:16, Kraishak Mahtha wrote:
> >
> > And also one last question, is it suggested to go with un-acked-clients
> value as zero both in hot-stand-by mode and load balance mode?
> >
> >
> > As has been mentioned before, please read the Kea ARM carefully and
> thoroughly, especially the HA hook section. There is very specific and
> well-written guidance on when max-unacked-clients should be set to zero.
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