Date: Wed, 21 May 2008 22:23:00 +0300 From: "Niki Denev" <nike_d@cytexbg.com> To: "Max Laier" <max@love2party.net> Cc: freebsd-net@freebsd.org Subject: Re: lagg0.2 style vlans on lagg(4) interface Message-ID: <2e77fc10805211223l7fd69e4cwdd488bada0dc7b95@mail.gmail.com> In-Reply-To: <200805211944.42418.max@love2party.net> References: <2e77fc10805211031n6c42ffd2u3dee28164094b83b@mail.gmail.com> <200805211944.42418.max@love2party.net>
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On Wed, May 21, 2008 at 8:44 PM, Max Laier <max@love2party.net> wrote: > On Wednesday 21 May 2008 19:31:46 Niki Denev wrote: >> If one tries to use lagg0.2 style vlans on lagg0 interface configured >> from rc.conf it does't work. >> The problem is that all of the cloned interfaces (lagg0 , lagg0.2, etc) >> are created before any other interface configuration is done, >> and in this case lagg0 is created, then lagg0.2 is created. >> But because lagg0 does not have any members yet, it's MAC address >> is all zeroes, and this is inherited by the vlan interfaces. >> At the next step the members are added to the lagg0 interface and it's >> mac address gets set, >> but the vlan interfaces never see this change and remain with mac >> address 00:00:00:00:00:00 and in unusable state. >> >> Does it sound reasonable for the vlan(4) interfaces to update their >> mac address when their parent changes it. >> (this should probably look more like the parent telling the vlans >> attached to it that it's mac has changed, but >> i'm not sure if the parent knows about children interfaces) > > It doesn't (and shouldn't have to). I'd simply add an > EVENTHANDLER_INVOKE(ifaddr_event, ifp) to if_setlladdr() - we do that for > INET[6] address already. Then vlan (and any other device interested in > LLaddress changes) can simply register to that eventhandler and resync. > > -- > /"\ Best regards, | mlaier@freebsd.org > \ / Max Laier | ICQ #67774661 > X http://pf4freebsd.love2party.net/ | mlaier@EFnet > / \ ASCII Ribbon Campaign | Against HTML Mail and News > > Yes, you are absolutely right. I wasn't aware of EVENTHANDLER(4). Niki
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