Re: [Xen-users] Guest - slow response to keystroke (SOLVED)

[Thomas Halinka <lists@xxxxxxxxx>]

Am Freitag, den 28.11.2008, 23:46 +0800 schrieb Stephen Liu:
> Hi Thomas,
> 
> 
> > Removing the mac-adress is not a good idea, since xen generates one
> > on
> > every domu-startup, if this is not defined.
> > 
> > So you will increase your ethX on every domu-startup, because for
> > udev
> > its a new nic, since it has a new MAC-Adress.
> 
> 
> I have 19 guests created on the Xen box.  Most *.cfg file don't have
> MAC-Address, only 2 of them having it.

ok, take one of this 17 guests, which has no mac assigned.

xm console guestxyz
        e.g. shows eth0 with MAC-ADRESS_A
xm shutdown guestxyz
xm create guestxyz
        no more eth0 is present, since a new mac is assigned.
        ifconfig -a shows only eth1
xm shutdown 
xm create
        eth1 is gone, now you have eth2 because mac has changed.
and so on....

>   I checked them to confirm.  So
> I just follow them.  I have no idea how this happens.
> 
> 
> > Please supply a Mac, but it _has_ to be unique!
> 
> What does it mean "it _has_ to be unique"

That in your entire Network, a MAC-Adress is only used once! the same
with ip-adresses - they also have to be unique in a network - same for
macs.

>   Please provide an  example.

its useless....

>  TIA.
> 
> 
> B.R.
> Stephen L


hth

Thomas




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