On Fri, 20 Jul 2007 21:24:15 +0000
Maxim Vetrov <[EMAIL PROTECTED]> wrote:
> Bart?omiej Rutkowski wrote:
> > Hi all,
> >
> > I have been playing with OpenOspf lately, and I came to a place, when I
> > needed to ensure that an ethernet interface should always go into DOWN
> > state when it loses its link (physically, for example the switch becames
> > turned off). I have tried to hire the devd daemon to do the job with such
> > small definitions:
> >
> > notify 100 {
> > match "system" "IFNET";
> > match "type" "LINK_DOWN";
> > media-type "ethernet";
> > action "/sbin/ifconfig $subsystem down";
> > };
> >
> > notify 200 {
> > match "system" "IFNET";
> > match "type" "LINK_UP";
> > media-type "ethernet";
> > action "/sbin/ifconfig $subsystem up";
> > };
> >
> > And what is happening? Well, basically, when the interface detects that eth
> > cable has been detached, devd triggers and makes it DOWN, which is ok. But,
> > when the card got the cable attached once again (and interface detects the
> > media type and gets ACTIVE state) devd never triggers the second rule,
> > which should get the interface UP again.
> > I have tried that with replacing action statements with ones with proper
> > logging actions, and when interface is UP devd gets the proper state
> > changes information.
> >
> > Now the question is: why devd doesent receive any information from
> > interfaces in DOWN state? Is that proper behaviour, or a bug? Thanks for
> > any reply, and for your attention.
> >
> > P.S. I am resending this message to freebsd-stable list, as I am not sure
> > if freebsd-questions was a proper choice.
> >
> >
> Probably, there is another notify which action is executed before yours
> :-) Devd stops scanning sections on the _first_ matched one. Run devd in
> debug mode and watch
>
> Regards,
> Muxas
I did my tests with debugging and logger in action directives and now I can
confirm that
devd does not trigger, when you put eth interface into DOWN state by "#ifconfig
ifnameX down".
Now, is that intentional behaviour or a bug? This makes those LINK_UP devd
triggers
totally unusable.
You can test this behaviour with such example ruleset:
http://rafb.net/p/gTm9CW93.html
--
Bartłomiej Rutkowski <[EMAIL PROTECTED]>
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