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Date:      Sat, 23 Sep 2017 11:09:58 +0000
From:      Steven Hartland <killing@multiplay.co.uk>
To:        Karl Pielorz <kpielorz_lst@tdx.co.uk>, freebsd-net@freebsd.org
Subject:   Re: CARP under 10.3 - can't "ifconfig down" one or more VHIDs?
Message-ID:  <CAHEMsqaRcw3vmfv0ExcWQQWWNScJzTfcDa9s2s0SivAhZugn8Q@mail.gmail.com>
In-Reply-To: <3F8D64F72B72084041550C1E@Mac-mini.local>
References:  <1183C95F3417890F2D0B1756@[10.12.30.106]> <22f64f3e-5572-4324-5e4c-ab5680e8e612@multiplay.co.uk> <3F8D64F72B72084041550C1E@Mac-mini.local>

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The underlying protocol hasn=E2=80=99t changed just the presentation so the=
re
shouldn=E2=80=99t be any issues between 9 and 10.

On Sat, 23 Sep 2017 at 09:21, Karl Pielorz <kpielorz_lst@tdx.co.uk> wrote:

>
>
> --On 22 September 2017 at 20:16:25 +0100 Steven Hartland
> <killing@multiplay.co.uk> wrote:
>
> > CARP on 9 and 10 are very different its not a separate interface anymor=
e,
> > its a property on the parent interface, so the behavior your described =
is
> > expected.
> >
> > If you want to disable carp just remove it, if however you want for fai=
l
> > to the other virtual host, just bump the advskew or force the state
> > change.
>
> Ok, thanks for confirming that - bit of a shame 'ifconfig carpX down' was=
 a
> very quick way of temporarily removing CARP (i.e. so the host didn't
> participate in the pool) for maintenance while leaving the base / parent
> interface available - and then putting it back 'as-was' with messing arou=
nd
> with the other values.
>
> Do you know if there's any interoperability issues having some 9.x and so=
me
> 10.x sharing the same CARP system?
>
>
> I'll probably replace with a script to store the skews, push them to a ve=
ry
> high value, mark as 'BACKUP' all the VHID's - and something to undo it al=
l
> again - though actually just removing it might be easier (providing addin=
g
> it doesn't cause a moment of "I'm MASTER, uh, no, I'm BACKUP").
>
> -Karl
>



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