Re: [Xen-users] Bonding...again

[Adam Wead <awead@xxxxxxxxxxx>]

Thanks for the help...

I've tried this method, as well as Christian's method which does not  
use a VLAN.  In both cases, I can get all interfaces to come up but  
can't get the guests to make network connections to the outside.  I  
should also note that under RedHat EL5.3, if you don't use a VLAN and  
bridge directly off of the bond, you run into this problem:
https://bugzilla.redhat.com/show_bug.cgi?id=463014

Which has been discussed on this list before.

I think I'm getting hung up on the routing.  If we use your VLAN  
example, I configure bond0 with the public IP for dom0 (yes?), then I  
configure the VLAN with it's own network like 10.0.X.X or 192.168.X.X,  
then I create a route from the VLAN to bond0... yes?  If I understand  
bridging correctly, I won't need to add any routes from VLAN to  
bridge...
Let me know if I've got that straight or not...

Thanks again for the help...

...adam




On Aug 5, 2009, at 12:18 AM, Jonathan Bayles wrote:

> Take a look at these configs and the brctl command...(XXXX = vlan tag)
>
> [root@pnode006 /]# cat /etc/sysconfig/network-scripts/ifcfg-eth0.XXXX
> DEVICE=eth0.XXXX
> BOOTPROTO=static
> ONBOOT=yes
> VLAN=yes
> BRIDGE=brXXXX
>
> [root@pnode006 /]# cat /etc/sysconfig/network-scripts/ifcfg-brXXXX
> DEVICE=brXXXX
> TYPE=Bridge
> BOOTPROTO=static
> ONBOOT=YES
> DELAY=0
> STP=off
>
> [root@pnode006 /]# brctl show
> bridge name     bridge id               STP enabled     interfaces
> brXXXX          8000.001ec9fd2360       no              vif3.0
>                                                        eth0.XXXX vif  
> = [ "mac=YY:YY:YY:YY:YY:YY,bridge=brXXXX" ]
> Basically,
>
> Create a sub interface off your bond, configure it to do the  
> tagging, create a bridge for the tagged traffic, add the interface  
> onto a "port" on the bridge. Add the guest onto the bridge using a  
> vif.
> Subint <---- brctl bridge ----> guest vif
>
> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
> ] On Behalf Of Adam Wead
> Sent: Tuesday, August 04, 2009 5:22 PM
> To: Xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-users] Bonding...again
>
> Hi all,
>
> I know this topic has been discussed a lot on this list, and I've been
> going over some posts from months past trying to get things to work on
> my end, but I need another appeal for help.  I'm setting up a dom0
> under Red Hat EL5, with 2 NICs.  From looking over the old posts, it
> looks like the best way to do this is to create bonds, vlans and
> bridges under Red Hat and bypass Xen's initial network-bridge script.
> I looked at what Fajar had said:
>
> http://lists.xensource.com/archives/html/xen-users/2009-05/msg00992.html
>
> And I tried duplicating this, mind you, without the patched ifup
> script and setup something like this:
>
> - (eth1 + eth2) = bond0 with mode 2
> - create VLAN bond0.2 to bond0
> - attach bridge xenbr0 to bond0.2
> - modified xend-config file: (vif-script 'vif-bridge bridge=xenbr0')
>
> This appears to work, but when I create guests and attach them to the
> xenbr0, no dice.  My question is, is the above correct and where to
> the IPs go?  Dom0 has it's own IP address, but what interface/bond/
> VLAN does that go under?  Should the other items have IPs as well?
>
> My network kung fu is limited, so I apologize in advance if these are
> stupid questions.
>
> many thanks,
>
> ...adam
>
>
>
>
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users

Attachment: smime.p7s
Description: S/MIME cryptographic signature

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users