--- Day changed

--- Log opened Sun Mar 20 23:59:03 2005
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05:30 < visik7> ola
05:31 < mael> hi
05:33 < visik7> someone use -unstable branch ? 
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16:36 < plars> Is there anyway to get it to use eth1 other than manually editing /etc/xen/scripts/network?
16:39 < Tv> set up your own bridge
16:39 < Tv> vif = [ 'mac=AA:00:00:16:11:a0,bridge=br0' ]
16:39 < plars> where do you specify something like that?
16:39 < Tv> in the domain config file
16:39 < Tv> for xm create
16:40 < plars> hmm, but how does it know to use eth1 then?
16:40 < Tv> set up the bridge to connect to eth1
16:41 < plars> so you have to manually use brctl before the xm create?
16:41 < Tv> who said manually
16:41 < Tv> I use /etc/network/interfaces (debian)
16:49 < plars> Tv: ok, that makes sense, but I think I'm missing a step
16:49 < plars> sorry, never played with brctl before
16:49 < plars> it seems that when I do the addbr and addif, I lose network connectivity on dom0
16:50 < plars> I suppose because eth1 is now diverting it's trafic to this virtual bridge?
16:50 < plars> how do you get around that?
16:50 < Tv> huh?
16:50 < Tv> was dom0 talking via eth1 before?
16:50 < plars> yes
16:50 < Tv> if you, that means unconfigured eth1
16:50 < Tv> and haven't configured br0 yet
16:50 < Tv> so there is no network connectivity
16:51 < Tv> s/if you/if so/
16:51 < plars> all I did was:
16:51 < plars> brctl addbr br1
16:51 < plars> brctl addif eth1
16:51 < plars> err
16:51 < plars> brctl addif br1 eth1
16:51 < Tv> ..which unconfigures eth1
16:51 < Tv> go configure br1
16:53 < plars> hmm, so br1 now gets treated like a network interface, and I can use ifconfig on it?
16:55 < Tv> "like a"?
16:55 < Tv> it _is_ a network interface
16:57 < plars> ok, so how does it "just work" if you have eth0?  I don't see anywhere in the network script where it's copying my ip address etc from eth0 and replicating it on xen-br0
16:57 < Tv> that's not the way things go
16:57 < Tv> you don't setup ethX first and then move the settings to a bridge interface; you setup the bridge interface directly
16:58 < Tv> xen may be _trying_ to copy
16:58 < Tv> but that's guaranteed to fail
16:58 < Tv> so don't even go there
16:59 < Tv> I suggest you just use whatever means your OS has for setting up a bridge, and then tell xm create to use that bridge.
16:59 < plars> it'll need to be generic
16:59  * Tv considers xen-br0 damage that should be routed around.
17:00 < Tv> Huh?
17:00 < Tv> What'll need to be generic?
17:00 < plars> the script to do this, I'm going to be doing it across multiple distros
17:01 < Tv> Then your best bet is not to touch any ethX, but leave that to the admin.
17:01 < plars> huh?
17:01 < Tv> There's no way to do it in a generic way.
17:01 < Tv> There's no real way to "migrate" from ethX to brX.
17:02 < plars> certainly there is, the scripts are already doing it in the eth0 case
17:02 < Tv> Except to change everything that sets up ethX to set up brX
17:02 < Tv> The scripts are failing magnificently.
17:02 < plars> my only problem is that every time I reinstall the network script gets recopied, so I can't just edit it
17:02 < plars> I'll keep digging then
17:02 < plars> thanks
17:02 < Tv> Do not try to copy ethX settings to brX.
17:02 < Tv> That _will_ _not_ _work_.
17:03 < Tv> The fact that xen upstream tries do it only points out they don't understand networking.
17:04 < Tv> (if they do; I really haven't bothered to try and understand all the unnecessary loops /etc/xen/scripts/network jumps through.
17:04 < Tv> oh yes they do
17:05 < Tv> # Copies the IP addresses from netdev to the bridge.
17:05 < Tv> that _cannot_ work reliably
17:05 < plars> I've never had a problem with them so far, except that the only obvious way I can see to make it use eth1 is to edit the network script
17:06 < Tv> The fact that they happen to work for you has very little signifigance compared to the _knowledge_ that they are broken.
17:06 < Tv> (they work in some configurations, that is)
17:07 < Tv> anyhoo, if your OS isn't preserving your changes in /etc, get a better OS.
17:07 < plars> ok, I see where it's copying now
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19:54 < visik7> h
19:54 < visik7> hi
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--- Log closed Mon Mar 21 23:59:01 2005