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Re: [Xen-users] Bonding – dom0 or dom1 ? and why is vif1.1 missing in Do

To: "Jerry Amundson" <jamundso@xxxxxxxxx>
Subject: Re: [Xen-users] Bonding – dom0 or dom1 ? and why is vif1.1 missing in DomU?
From: "Ian Brown" <ianbrn@xxxxxxxxx>
Date: Sat, 10 Mar 2007 12:51:28 +0200
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
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Thanks, Jerry.

 - I am looking at this 3 pages Dell pdf doc and will try something like it.

 - A question:
 It is said there that :
"The bridge and the bond should be configured to disable Address
Resolution Protocol (ARP) and multicast. In the test environment,"
and this should be done by:

# ip link set xenbr1 arp off
# ip link set xenbr1 multicast off

Does anybody knows why this is so ?

Regards,
Ian


On 3/9/07, Jerry Amundson <jamundso@xxxxxxxxx> wrote:
Oops.
http://www.dell.com/downloads/global/power/ps1q07-20070100-Gautreau-OE.pdf

On 3/9/07, Jerry Amundson <jamundso@xxxxxxxxx> wrote:
> I haven't looked closely at your questions yet, but I did happen
> across this nice little Xen/bonding how-to from Dell. Might guide you
> further.
>
> jerry
>
> On 3/9/07, Ian Brown <ianbrn@xxxxxxxxx> wrote:
> > Hello Xen users,
> >
> > I have a machine with two different nics (sis900 and dmfe).
> > I am trying bonding in Xen. (on FC6, intel x386, para virtualization).
> >
> > In the past  I did successfully configured and used bonding on non-Xen
> > Linux machines.
> >
> > I saw some posts in this list and in other sites regarding Xen
> > bonding, but I am a little bewildered
> > so I want to verify something:
> >
> > I am using the default /etc/xen/xend-config.sxp config file, which
> > means I am using
> > bridging (ifconfig can show xenbr0).
> >
> > When booting into domain 0 both nics are recognized (as I can see from 
dmesg),
> > also "ifconfig -a" from  dom0 shows eth0 and eth1.
> >
> >
> > Now when I boot into domain U , "ifconfig -a" shows only eth0.
> > /etc/modprobe.conf has a line saying "alias eth0 xennet" (but eth1
> > does not appear in /etc/modprobe.conf).
> >
> >
> > Now I have two questions:
> > 1)I want to configure bonding through the initscripts
> > (namely , create /etc/sysconfig/network-scripts/ifcfg-bond0 and add 
MASTER/SLAVE
> >  entries in /etc/sysconfig/network-scripts/ifcfg-eth0 and
> > /etc/sysconfig/network-scripts/ifcfg-eth1 ,
> > etc.) Where should I do it ? In dom 0 ? or in dom U ? I saw somewhere
> > in xen-user mailing list that it should be done in dom U ; but as I
> > said, ifconfig -a does not show eth1 in dom U .
> > Any tips or guidance as to what should I do or pointers to bonding on
> > Xen that worked for you will be helpful.
> >
> > 2)
> >  After boot of domain U , I ran ifconfig -a ***in domain 0***, and I
> > saw only ONE vif1.* instance (vif1.0) I expected to see also vif1.1
> > for the second nic.
> > The XenNetworking wiki page says : "If you create multiple network
> > interfaces for a domU, it's ends will be eth0, eth1, etc, whereas the
> > dom0 end will be vif<id#>.0, vif<id#>.1, etc."
> > (http://wiki.xensource.com/xenwiki/XenNetworking). Did I misunderstood
> > something ?
> > Am I wrong somewhere?
> >
> > Regards,
> > Ian
> >
> > _______________________________________________
> > Xen-users mailing list
> > Xen-users@xxxxxxxxxxxxxxxxxxx
> > http://lists.xensource.com/xen-users
> >
>
>
> --
> "Oh joy! Rapture! I've got a brain"
> -Scarecrow
>


--
"Oh joy! Rapture! I've got a brain"
-Scarecrow


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