Date: Tue, 07 Feb 2012 17:02:03 +0100 From: Damien Fleuriot <ml@my.gd> To: freebsd-questions@freebsd.org Subject: Re: From analysis of a simple ifstated.conf to more compex example Message-ID: <4F314AFB.8080901@my.gd> In-Reply-To: <CAAwfu_n%2BVjgeihzWRa1F6v6PhCA943sFHR7eFxA1Ycc8NbjXpQ@mail.gmail.com> References: <CAAwfu_n%2BVjgeihzWRa1F6v6PhCA943sFHR7eFxA1Ycc8NbjXpQ@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On 2/7/12 3:36 PM, peter knezel wrote:
> Hello all,
>
> I would like to ask somebody to explain me how the ifstated works according to
> the following configuration file.
> I have three virtual carp interfaces carp0,carp1 and carp2.
>
> I try to understand the following setting:
> The server is in state one (all carp interfaces are up) and if there
> is carp down of any:
> one (carp0 or carp1 or carp2),
> two ([carp0 and carp1] or [carp0 and carp2] or [carp1 and carp2]),
> three interfaces (carp 0 and carp1 and carp2), server
> runs the script testdown.sh and put the server into state two.
> If all carp interfaces are up, the server runs the testup.sh and set
> the state to one.
>
That is my understanding.
> Is it the way the system works?
> Or am I wrong?
>
> ===
> init-state one
>
> net = '( "ifconfig -a -u |grep carp0 > /dev/null" every 3 && "ifconfig -a -u
> |grep carp1 > /dev/null" every 3 && "ifconfig -a -u |grep carp2 > /dev/null"
> every 3)'
>
> state one {
> if ( ! $net ) {
> run "/usr/local/testdown.sh"
> set-state two
> }
> }
>
> state two {
> if ( $net ) {
> run "/usr/local/testup.sh"
> set-state one
> }
> }
> ===
>
> Is there any possibility to define and set ifstated.conf that reacts when:
>
> any one of the carp interfaces is down - followed by another any
> other carp interface down
>
>
> I tried to define states:
>
> duu ="!carp0.link.up && carp1.link.up && carp2.link.up"
> udu ="carp0.link.up && !carp1.link.up && carp2.link.up"
> uud ="carp0.link.up && carp1.link.up && !carp2.link.up"
> ddu ="!carp0.link.up && !carp1.link.up"
> dud ="!carp0.link.up && !carp2.link.up"
> udd ="!carp1.link.up && !carp2.link.up"
>
> and used them but somehow I cannot incorporate all state changes and
> include it in ifstated.conf.
>
Works fine here, did you not have any luck with the file I posted earlier ?
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4F314AFB.8080901>